Engineering & Marine Services (PTE) LTD. Mobile Modular Workover Unit – 1st MMWU
SCR Technical Manual
FINAL DOCUMENTATION PACKAGE
SCR/Generator Control
Rig/Plant Mobile Modular Workover Unit st
1 MMWU Customer
Engineering & Marine Services (PTE) LTD.
Project Manager
N/A
Purchase Order Number
J301270002
Document Number
D257272-1200-FDD-002
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National Oilwell Varco 10000 Richmond Ave. Houston, Texas 77042 P.O. Box 4888 Houston, Texas 77210 USA Phone: 713-346-7500 FAX: 713-435-2195 Rev
01
Final Documentation Package – Operations and Maintenance Manual PO Number: J301270002 Page: ii of ii Engineering & Marine Services (PTE) Ltd. – Mobile Modular Workover Unit – 1st MMWU
Table of Contents This manual may consist of several volumes, chapters and sections and is housed in a number of different binders as necessary to adequately document the equipment presented. Each binder or volume is provided with a “Table of Contents”.
FINAL DOCUMENTATION PACKAGE OPERATIONS AND MAINTENANCE MANUAL Engineering & Marine Services (PTE) Ltd. Mobile Modular Workover Unit – 1st MMWU SCR Technical Manual Description Chapter Introduction
- Section Title Page ......................................................... Front Matter Table of Contents............................................................... ii
SCR/Generator Control Package...................................................................................... 1.0 SCR Drive System ................................................................................................................1.1 Generator Unit.......................................................................................................................1.2 SCR Unit ...............................................................................................................................1.3 Driller’s Console ....................................................................................................................1.4 Transformer Feeder Unit.......................................................................................................1.5 Motor Control Center.............................................................................................................1.6 Drawworks Braking ...............................................................................................................1.7 Unique Devices .....................................................................................................................1.8 Spare Parts List.....................................................................................................................1.9 SCR/Gen Test Procedure ...................................................................................................1.10 Certificate of Compliance ....................................................................................................1.11
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FINAL DOCUMENTATION PACKAGE Engineering & Marine Services (PTE) LTD. SCR/Generator Control
Chapter 1.0
SCR/Generator Control Package
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Table of Contents SCR / Generator Control Unit
REFERENCE
7272 C00,01,02,04
REFERENCE DESCRIPTION
Engineering & Marine Services (PTE) LTD.
This document contains proprietary and confidential information which belongs to National Oilwell Varco; it is loaned for limited purposes only and remains the property of National Oilwell Varco. Reproduction, in whole or in part; or use of this design or distribution of this information to others is not permitted without the express written consent of National Oilwell Varco. This document is to be returned to National Oilwell Varco upon request and in any event upon completion of the use for which it was loaned. © National Oilwell Varco
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National Oilwell Varco 11000 Corporate Center Dr Houston, TX 77041 Phone + 281 854 0400 Fax + 281 854 0607
DOCUMENT NUMBER
REV
D257272-1200-TOC-001
01
FINAL DOCUMENTATION PACKAGE Engineering & Marine Services (PTE) LTD. SCR/Generator Control
Section 1.1
SCR Drive System
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Technical Manual 50 Hz SCR Drive System
RIG/PLANT
Mobile Modular Work Over Unit-1st
ADDITIONAL CODE
SDRL CODE
REMARKS MAIN TAG NUMBER CLIENT PO NUMBER
GMK710301D
CLIENT DOCUMENT NUMBER
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TOTAL PGS
44
DISCIPLINE
REFERENCE
20605-44
REFERENCE DESCRIPTION
Engineering & Marine Services (PTE) LTD
This document contains proprietary and confidential information which belongs to National Oilwell Varco; it is loaned for limited purposes only and remains the property of National Oilwell Varco. Reproduction, in whole or in part; or use of this design or distribution of this information to others is not permitted without the express written consent of National Oilwell Varco. This document is to be returned to National Oilwell Varco upon request and in any event upon completion of the use for which it was loaned. © National Oilwell Varco
National-Oilwell Varco 11000 Corporate Centre Dr Houston, TX 77041 USA Phone +1 281 854 0400 Fax +1 281 854 0607
DOCUMENT NUMBER
REV
D257272-1200-MAN-001
01
FINAL DOCUMENTATION PACKAGE Engineering & Marine Services (PTE) LTD. SCR/Generator Control
Section 1.2
Generator Unit
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Technical Manual Generator Unit
RIG/PLANT
Mobile Modular Work Over Unit-1st
ADDITIONAL CODE
SDRL CODE
REMARKS MAIN TAG NUMBER CLIENT PO NUMBER
GMK710301D
CLIENT DOCUMENT NUMBER
www.nov.com
TOTAL PGS
57
DISCIPLINE
REFERENCE
20605-46
REFERENCE DESCRIPTION
Engineering & Marine Services (PTE) LTD
This document contains proprietary and confidential information which belongs to National Oilwell Varco; it is loaned for limited purposes only and remains the property of National Oilwell Varco. Reproduction, in whole or in part; or use of this design or distribution of this information to others is not permitted without the express written consent of National Oilwell Varco. This document is to be returned to National Oilwell Varco upon request and in any event upon completion of the use for which it was loaned. © National Oilwell Varco
National-Oilwell Varco 11000 Corporate Centre Drive Houston, Texas 77041 USA Phone +1 281 854 0400 Fax +1 281 854 0607
DOCUMENT NUMBER
REV
D257272-1200-MAN-002
01
Document number Revision 01 Page 2
D257272-1200-MAN-002
REVISION HISTORY
01
17.12.2008
Rev Date
Issued For Information
(dd.mm.yyyy)
Reason for issue
CHANGE DESCRIPTION Revision Change
Description
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01
Issued For Information
BKF
NEG
KM
Prepared
Checked
Approved
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D257272-1200-MAN-002
TABLE OF CONTENTS 1
2
GENERATOR UNIT .......................................................................................................... 4 1.1
Operation Description ............................................................................................. 4
1.2
Specifications ......................................................................................................... 6
MAINTENANCE................................................................................................................ 8 2.1
Testing.................................................................................................................... 8
2.2
Servicing................................................................................................................. 8
2.3
Theory of Operation.............................................................................................. 23
2.4
Power Limit Circuit................................................................................................ 43
2.5
AC Ground Fault Detection Circuit........................................................................ 46
2.6
TROUBLESHOOTING.......................................................................................... 46
3
HI-LINE OPERATION ..................................................................................................... 51
4
REMOVAL & REPAIR .................................................................................................... 54 4.1
Model 1000........................................................................................................... 54
4.2
Model 1400........................................................................................................... 55
4.3
Model 1861........................................................................................................... 56
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1 GENERAT
OR UNIT
1.1 Operation
Description
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The Generator Unit controls the engine/ generator set to develop a constant AC supply. The output of several generators are fed to a common AC bus (refer to Figure 2-1). Each Generator Unit's AC Control Module has an electronic engine governor; a voltage regulator and a circuit breaker (refer to Figure 2-2). The circuit breaker is interlocked with a Protection circuit which automatically trips the breaker for malfunctions such as overcurrent, over-voltage, under/over-frequency and reverses power. In addition, a Synchronization Panel is provided with each system to match individual generator frequency and voltage to the bus frequency and voltage.
Figure 2-1. Generator Unit Functional Diagram www.nov.com
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Figure 2-2 AC Control Module Controls and Indicators
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1.2 Specifications 1.2.1 Electrical Table 2-1 lists the electrical specifications of the AC Control Module. 1.2.2 Mechanical They are mounted in a sheet steel cubicle. Dimensions vary from model to model. A typical Generator Cubicle is 90" H. x 36" D. x 24" W. and weighs ≈2,000 pounds.
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ELECTRICAL POWER AC Supply
Three phase, 50 Hz. 600 VAC.
GENERATOR CIRCUIT BREAKER Overcurrent
The circuit breaker is preset to trip under the following conditions: Amperes required to trip depends on generator KVA rating.
Overvoltage
≈ 1.16 times normal bus voltage, 100 mS delay.
Overfrequency
55 - 56 Hz.
Underfrequency 42 Reverse Power
Hz.
Usually -7% to -10% of rated KW.
ENGINE GOVERNOR Regulation
0.5 Hz, steady state.
Response Time One Load Unbalance
Second.
5% rated load.
GENERATOR VOLTAGE REGULATOR Regulation 3%
maximum.
Response Time One
Second.
Load Unbalance
10%, no load to full load of rated KVARs.
Exciter Power
100/200 VDC, 12 Amps maximum. KVAs are distributed among generators by reactive droop compensation.
Table 2-1. Electrical Specifications Many of the electronic circuits associated with generator control are housed in the AC Control Module. The AC Control Module is constructed from 14-gauge steel, and has its own heatsink. AC CONTROL MODULE SPECIFICATIONS Size Weight 25 www.nov.com
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2 MAINTENANCE This section contains testing and servicing information to assure proper operation of the Generator Unit. TROUBLESHOOTING (later in this chapter) has an explanation of the various Generator Unit circuits. REMOVAL AND REPAIR (also later in this chapter) identifies the various generator assemblies. 2.1 Testing Perform the functional tests given in Tables 2-2 through 2-6 after repairing/replacing any assembly. Perform the Reverse Power Trip and Engine Mechanical Over-speed tests listed in Table 2-4 once a month. SERIOUS DAMAGE TO THE ENGINE CAN RESULT IF REVERSE POWER AND ENGINE OVERSPEED FUNCTIONS DO NOT FUNCTION PROPERLY. These are the tables and their titles: 2-2 Engine/Generator Unit Functional Test 2-3 AC Module Functional Tests 2-4 Protection Circuit Functional Test 2-5 Calibration Procedure for Woodward EG-3P and EG-10P Actuators 2-6 Calibration Procedure for Woodward EG-B 10P Actuators Used on EMD Engines The TEST switch allows a quick check of the systems vital signals. The TEST switch and the TEST METER are color coded. For example, if the TEST switch is set to the yellow BREAKER TRIP VOLTAGE position, normal condition is indicated by the TEST METER needle deflecting to the yellow. 2.2 Servicing Servicing consists of oil change and calibration procedure of the throttle actuator terminal shaft. 2.2.1 Oil Change The Woodward EG-3P and EG-10P Actuators receive oil from the engine oil supply, so regular engine oil change intervals are sufficient. The Woodward EG-B 10P Actuator has its own oil supply. Change it every six months under favorable operating conditions. The oil sump holds one U.S. Quart. Refer to the following and the manufacturer's literature. www.nov.com
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The main difference between these models: the EG-B has a Ball Speed governor and self-contained oil supply. Changing the Oil in the EG-B 10P 1. To drain the oil, unscrew the Drain Cock located in the lower left-hand corner of the front panel. 2. To flush the actuator, add one quart of diesel fuel or kerosene through the Oil Cup located on the top. Run the engine speed up and down by switching the Engine Control switch between IDLE and RUN. After a few minutes, shut the engine off and drain the fluid. Repeat flushing until the Drain Cock fluid is clean. 3. Drain all the fluid and screw in the Drain Cock. Fill the actuator with one quart of the recommended lubricating oil. Woodward recommends Mobil 1. IF THE OIL IN THE EG-B 10P ACTUATOR IS NOT CHANGED REGULARLY, IT WILL BECOME CLOGGED WITH GUM AND FAIL.
2.2.2 TERMINAL SHAFT CALIBRATION Calibrate all engine actuators if KW load sharing at full load exceeds 10% (see Table 2-5).
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Table 2-2. Engine/Generator Unit Functional Test PRELIMINARY
ACTION
RESULTS
Open all the Generat or unit fuses, with the engine shut down. THROTTLE CHECK
A.
A.
A. There are no meas this step.
A.
Disconnect Throttle (+) (TB11-1) and Throttle (-) (TB11-2) (this is TB4 or TB9 in older systems). Refer to your s ystem prints to determine the terminal strip connections for the Throttle and Exciter.
B.
Measure the resistance between the leads to the Throttle to check for open or short circuit conditions.
C.
Measure the resistance between each throttle actuator lead and ground.
There are no measur able results from this step. urable res ults from
B. The resistance should be ≈30 to 36Ω. C. The reading should be an open circuit reading ( ∞Ω) unless the cable is grounded. D. There are no meas this step.
urable res ults from
D. Reconnect the throttle leads. EXCITER CHECK A. Disconnect the Excit er (+) wire from TB11-7 and the Exc iter (-) wire from TB11-8 (this is T B4 or TB9 in older systems). Refer to your system prints to determine the terminal strip connections for the Throttle and Exciter.
B.
A.
There are no measur able results from this step.
B.
The resistance should be 3 to 20 Ω (this depends on generator model).
C. The resistance should be ∞Ω after TB11-8 in the genera tor switch gear is disconnected. Measure the resistance between the leads to the Generator Exc iter to chec k D. There are no measur able results from this step. for open or short circuit conditions.
C. Check the resistance from each exc iter lead to ground. D. Reconnect the Exciter leads.
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ACTION
RESULTS
CONTROL CIRCUIT TEST A. Set the E NGINE CONTROL SWITCH to IDLE. B. Start
the engine and run it at ≈2/3 speed.
C. Using the oscilloscope, check the phas rotation at the generator stabs.
D257272-1200-MAN-002
A.
There are no measur able results from this step.
B.
If the system incorporates HOC (Hands Off Cranking), the HOC batteries supply power to the AC Control Module (it is not necessary to manually control the engine actuator).
e C. The A phase voltage peak (see Figure 2-3) occurs 120° before the B (see Figure 2-4). The B phase voltage peak occurs 120° before the C (see Figure 2-5). Figure 2-6 shows phase rotation.
Figure 2-3. Phase A
Figure 2-4. Phase B
Figure 2-5. Phase C
Figure 2-6. Phase Rotation
Table 2-2. Engine/Generator Unit Functional Test (Continued) www.nov.com
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ACTION RESULTS CONTROL CIRCUIT TEST (CONCLUDED) D. Close fuses F30, F3 1, F32, F35, F36, D. There are no measurable result s from thi s and F37 on the input of the AC Regulator step. Transformer. On most models, these fuses will be F30 F31, F32, F33, F34, and F35. E. Check the phase rotation at the AC Control Module pins 512 through 517.
VOLTAGE REGULATOR TEST A. Disconnect wires Gate A+ (Pin 504) and Gate A- (Pin 505). B.
E. There are six phase voltages. VAB (pin 512) should have a waveform which is inverse of VBA (pin 513). The inverse relationship also exists between VBC (pin 514) and VCB (pin 515), and VCA (pin 516) and VAC (pin 517). A. There are no measurable result s from thi s step.
Close the Exciter fuses. B. There are no measurable result s from thi s Exciter fuse numbers depend on step. model of sy stem (check y our generator control schematic in your drawing package). The Exciter fuses for the 1400 system are F39 & F40.
C. Observe the generator VOLTMETER.
C. The voltage should rise to ≥200 VAC, and fall cyclically as K1 (the build- up relay) picks up and drops out.
D. Monitor the signals at Pins 512 through 517. D. These signals should also rise and drop. E.
If the results indicated in Steps C and D occur, reconnect the Gate A+ and Gate E. There are no measurable result s from thi s A- wires. step.
F. Set the VOLTS ADJUST control to give a 50% indication on the generator F. The VOLTMETER will indicate 300 to 450 VOLTMETER. VAC. Table 2-2. Engine/Generator Unit Functional Test (Continued) www.nov.com
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ACTION ENGINE GOVERNOR TEST A. Determine the model of your Throttle Actuator. If it is a Wo odward Mo del EG-B 10P, perform Steps B through D. If it is a Wood ward Model EG-3P or EG-10P, skip to Step E.
D257272-1200-MAN-002
RESULTS A. There are no measurable results from this step.
Steps B through F set the various controls of the Throttle Actuator. Woodward Models EG-3P and EG-10P do not have these controls and, therefore, do not require these steps to be performed.
B. Set the SPEED DROOP control to 0 (Zero).
B. There are no measurable results from this step.
C. Set the LOAD LIMIT control to MAXIMUM FUEL.
C. There are no measurable results from this step.
D. Move the SPEED ADJUST knob on actuator to maximum CW rotation. This represents a generator frequency of approximately 54 Hz. Slowly rotate the SPEED ADJUST knob on the actuator CCW until the engine just begins to slow down.
D. There are no measurable results from this step.
SLOWING DOWN THE ENGINE BELOW THIS RPM MAY INTERFERE WITH THE AC MODULE’S ABILITY TO PROPERLY CONTROL THE OPERATION OF THE ENGINE. E. Set the SPEED ADJ UST control t o somewhat less than 50% on it's scale indication.
E. There are no measurable results from this step.
F. Turn the ENGINE CONTROL switch to IDLE and start the engine.
F. There are no measurable results from this step.
G. Allow the engine to warm-up for 15 minutes.
G. There are no measurable results from this step.
H. Turn the ENGINE CONTROL switch to RUN. I.
Fine tune the VOLTAGE ADJUST and SPEED ADJUST knobs to achieve 600 VAC at 50 Hz.
J. Turn the ENGINE CONTROL switch to IDLE. K. Turn the ENGINE CONTROL switch the engine back to RUN.
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H. The generator voltage and frequency should increase as the ENGINE CONTROL switch is moved from IDLE to RUN. I. The Generator VOLTMETER will indicate 600 VAC. The FREQUENCY meter will indicate 50 Hz. J. The generator voltage and frequency should decrease to Idle values. K. The generator frequency should stabilize at 50 Hz within two overshoots.
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Table 2-2. Engine/Generator Unit Functional Test (Continued) ACTION SYNCHRONIZATION CIRCUIT TEST A. Connect one engine/ generator to the Main AC Bus. This test only needs to be performed if components in the synchronizing circuit have been changed or if a problem is encountered in synchronization.
RESULTS A. There are no measurab le resu lts from this step. GENERATOR CIRCUIT BREAKERS WILL NOT CLOSE UNTIL SYNCHRONIZED WITH THE MAIN AC BUS. DO NOT CLOSE ANOTHER GENERATOR’S CIRCUIT BREAKER UNTIL THE SYNCHROSCOPE AND SYNC LIGHTS HAVE BEEN CHECKED FOR PROPER OPERATION.
B. Proceed to a seco nd/subsequent generator, and following the st eps indicated in the previous s ections of the test, adjust it s B. The pointer of the SYNCHROSCOPE will turn counterclockwis e. The SYNC LIGHTS controls to develop 600 VAC at 48 Hz. will be dimly illuminated. C. Connect an AC Volt meter, switched to read 600 VAC, between the oncoming generator's stab A phas e and the Main AC C. There are no measurab le resu lts from this Bus stab A phase. step. D. Adjust the generator’s frequency to 50 Hz, so that it slowly goes in and out of synchronization with the Main AC Bus. Observe the Volt meter, the SYNCHROSCOPE, and SYNC LIGHTS. E. Close the oncoming generator’s circuit breaker when sync occurs. Synchronization between the Main AC Bus and the oncoming generator has occurred when the needle of the SYNCHROSCOPE is points vertically, the SYNC LIGHTS are off, and a Simpson Model 250 (or equivalent) Volt Ohm Meter (VOM) connected to the top and bottom of the Main AC Circuit Breaker indicates minimum voltage.
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D. The pointe r of the SYNCHROSCOPE will turn clo ckwise o r co unterclockwise. The SYNC LI GHTS will alternat ely di m and brighten. E. The generator’s circuit breaker will not close if proper synchronization has not been achieved. The KVAR meters of all generators on line should each read the same value.
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Table 2-2. Engine/Generator Unit Functional Test (Continued) ACTION
RESULTS
LOAD DISTRIBUTION TEST Five separate tests comprise the Load Distribution Test: • KVAR Sharing Test. • KW Sharing Test. • Master/Slave Sharing Test. • Engine/Generator Idle-Run Test. • Load Testing Engine/Generator Test. KVAR Sharing Test A. Balance the KVARs by using the VOLTS A. Watch the KW and KVAR readings while ADJUST knob of the Gener ator Control the system load is changing. The generator Cubicle that has the lowest reading KVAR. readings should be about the same. KW Sharing Test A. Connect all engine/generator sets to the Main AC Bus. B. Make assignments to provide Load.
≈60% KW
A. There are no measurab le resu lts from this step. B. The KW METERS of all engine/generators should read the same and track together as the KW Load varies.
Master/Slave Sharing Test A. Observe that only the master generator A. Connect all the system generators to the SPEED ADJUST dial has an e ffect on the Main AC Bus. The KW and KVAR reading speed of all the engines on the lines. Verify of each connected engine/generator set that the lowest numbe red onlin e generator should be about the same. controls all other online generators. B. Disconnect Generator 1 from the Main AC Bus. C. Disconnect Generator 2 from the Main AC Bus. D. Reconnect all generators to the Main AC Bus.
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B. Verify that with Gener ator 1 off the Main AC Bus, Generator 2 controls all other connected generators C. Verify that with Gener ators 1 and 2 off the Main AC Bus, Generator 3 controls all other connected generators. D. There are no measurable results from this step.
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Table 2-2. Engine/Generator Unit Functional Test (Concluded) ACTION
RESULTS
LOAD DISTRIBUTION TEST (Concluded) Engine/Generator Idle-Run Test A. Start an engine/genera tor set and run it at IDLE. Follow the recommended warm up time specified by the engine/generator set manufacturer.
A. There are no measurab le resu lts from this step.
B. Put the ENGINE CONTROL switch to RUN B. The generator voltage and frequency should increase as the engine goes from IDLE to and adjust the SPEED ADJUST RUN speed. potentiometer to 50 Hz. C. Put the ENGINE CONTROL switch to IDLE. D. Put the ENGINE CONTROL switch to RUN. Load Testing Engine/Generator Test A. After performing the Engine/Generator IdleRun test, connect the engine/generator to the Main AC Bus. B. Connect a load (such as a tank of salt water) to the Main AC Bus.
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C. The generator voltage and frequency should decrease to the idle value. D. The gener ator frequency should stabilize a t 50 Hz. within two overshoots.
A. There are no measurab le resu lts from this step. B. Observe the Engine/Generator's KW METER and compare the reading to the Engine/Generator's rated KW capacity.
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Table 2-3. AC Control Module Functional Test ACTION
RESULTS
PRELIMINARY A. Inspect the AC Control Module wiring A. Fix any incorrect or loose connections. harness for incorrect and/or loos e connections. B. Turn on the Generator unit. POWER SUPPLY CHECK A. Measure the voltage at the following points: Terminal Pin 502 Terminal Pin 503 Terminal Pin 507 Terminal Pin 508 Terminal Pin 546 Auxiliary Board Pin 24
B. The Generator RUN light and the AC Control Module front panel POWER ON light will illuminate. A. The voltage should be: +16 VDC -16 VDC -160 VDC +160 VDC +11 VDC -11 VDC
FREQUENCY DEMODULATOR TEST The Frequency Demodulator Circuit is used to develop a speed feedback signal. This signal is necessary for diesel engine speed regulation. The six AC phases from the AC Regulator Transformer are processed by the Demodulator Circuit into the Frequency Demodulator Output Waveform. The Frequency Demodulator Output Waveform is converted by the AC Control Module circuit into the Frequency Feedback Signal which can be measured at TP19 of the AC Control Module. The Frequency Feedback Signal will be -2.5 VDC at the system's proper operating frequency.
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The appearance of the Frequency Demodulator Output Waveform w ill NOT appear the same if different oscilloscope adjustments are used. Therefore, use the suggested settings for viewing the waveform. Field calibration of this circuit is difficult and not recommended.
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Table 2-3. AC Control Module Functional Test (Continued) ACTION FREQUENCY DE (CONCLUDED)
MODULATOR TE
RESULTS ST
A. Check TP5 for the Frequency Demodulator Output Waveform in the Unit Under Test.
A. The wavef orm should be lik e the one shown in Figure 2-7.
If desired, you can compare the waveform of the Unit Under Test with the waveform of a known fully functional unit.
CURRENT DEMODULATOR TEST A. Check the following pa rameters at the given location: PARAMETER
A. Since there is no current flow, the measured voltages will be:
LOCATION
Auxiliary Board Pin 5 IREAL IREACTIVE Auxiliary Board Pin 6 VOLTAGE REGULATOR TEST A. At run speed, rotate the VOLTS ADJUST control knob to its center position. B. Monitor Test Point 12. C. Monitor the VOLTAGE REFERENCE signal at AC Control Module Pin 551. www.nov.com
Figure 2-7. Frequency Demodulator Output Waveform
Zero (0) Volts. Zero (0) Volts A. There are no measurab le resu lts from this step. B. The voltage should be ≈-92 VDC @ 600 VAC. C. The voltage should be ≈+4 to 6 VDC.
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Table 2-3. AC Control Module Functional Test (Concluded) ACTION
RESULTS
VOLTAGE REGULATOR TEST (CONCLUDED) D. Monitor the EXCITER FIELD SUPPLY FIRING PULSE at AC Control Module Pin 504 (GATE A+).
FREQUENCY REGULATOR TEST
D. The EXCITER FIELD SUPPLY FIRING PULSE waveform should look like the one in Figure 2-8.
Figure 2-8. Exciter Field Supply Firing Pulse Waveform
A. Rotate the SPEED ADJUST control knob t o A. There are no measurab le resu lts from this its center position. step. B. Monitor the SPEED REFERENCE signal at AC Control Module Pin 547. C. Monitor the engine/generator's speed.
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B. The voltage should be +4.0 to +6.0 VDC. C. It must fall within the normal operating speed range of the engine/generator.
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Table 2-4. Protection Circuit Functional Test ACTION
RESULTS This test applies only to systems equipped with a Tachometer Pulse Pickup circuit.
NO PULSE TRIP
A. The Generator ON LINE light will illuminate.
A. Connect an engine/generator set to the Main AC Bus. B. Disconnect TACH S IGNAL lead at AC Control Module Pin 526.
B. The Generator Circuit Breaker will trip off line, the engine will die, and the Generator ON LINE light will extinguish.
C. Test all remaining engine/generator sets by repeating Steps A and B. REVERSE POWER TRIP
C. Results will be as shown in Steps A and B.
A. Connect a generator to the Main AC Bus.
A. There are no measurab le resu lts from this step.
B. Connect a jumper between AC Contr Module Pins 533 and 545 (this is Throttle Output).
ol B. The Generator Circuit Breaker the corresponding to the gener ator will trip off line in eight to 10 Seconds.
Connecting this jumper between pins 533 and 545 will cause a reverse power condition. C. Once the Generator Circuit Breaker trips off line, remove the jumper between Pins 533 and 545.
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C. The engine will return to RUN speed and the Generator Circuit Breaker will be in the OFF position.
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Table 2-5. Calibration Procedure for Woodward EG-3P and EG-10P Actuators ACTION
RESULTS
SETUP A. Connect an Ammeter in series with one of A. There are no measurab le resu lts from this the throttle leads which are connected to the step. Actuator receptacle. B. Set the Ammeter scale to 100 mA. B. There are no measurable results from this step. C. Open the Generator Circuit Breaker. C. There are no measurable results from this step. D. There are no measurable results from this D. Start the engine, and bring it up to RUN. step. TERMINAL SHAFT ADJUSTMENT A. Disconnect the coupling from the actuator shaft (refer to Figure 2-9). Adjust the actuator so that it draws 30 to 60 mA. Monitor the Ammeter of all actuators, in RUN, Off-line, with engine warmed up. For each 2.5 mA of change desired, rotate the coupling on the threaded rod connected to the actuator shaft ½ to 1 turn. Actuators and linkages must also be set to conform with the engine manufacturer's specifications. A compromise between the engine manufacturer's specifications and the 30 to 60 mA figure may be necessary.
A. On actuators produced beginning in 1980 Ammeter readings on all units should be within 10 mA of each other. On older units, the Ammeter readings may have to be the same for good load sharing. If you have questions, call the Ross Hill Field Service Office.
ACTUATOR SHAFT
LOCK NUT THREADED ROD
CATERPILLAR Series 3500 engines do not conform to the 2.5 mA change per ½ to 1 turn of the coupling of the threaded rod. REASSEMBLY A. Stop the engine. B. Disconnect the Ammeter and reconnect the throttle lead.
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ACTUATOR
Figure 2-9. Actuator Linkage A. There are no measurab le resu lts from this step. B. There are no measurable results from this step.
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Table 2-6. Calibration Procedure for Woodward EG-B 10P Actuators Used on EMD Engines ACTION RESULTS ACTUATOR CURRENT CHECK
A.
Remove the top cover plate by unscrewing the four corner screws.
B.
Connect an Ammeter, set to read 100 mA, in series with one of the throttle leads which are connected to the terminal strip located in the Engine Control Cabinet which is adjacent to the engine.
C.
Open the Generator Circuit Breaker. Start the engine, and bring it up to RUN. Monitor the actuator current.
D. Compare the actuator currents of all units. TERMINAL SHAFT ADJUSTMENT
This calibration procedure is to ensure that all of the actuators will work together. In most cases, if the actuator currents of all the actuators are within 10mA between the highest and lowest reading, they will perform properly. A. A 1/8" Allen Head adjustable Spring Seat will be visible in the middle of the actuator about 1" (2.54 cM) below the top. The seat is held tight by a 5/16" lock nut. B. There are no measurable results from this step. C. Record the actuator current, then repeat Steps A, B, and C for all the actuators. D. Determine which (if any) of the actuators require adjustment. If any do require adjustment, perform the following Terminal Shaft Adjustment procedure on the identified unit(s).
A. Loosen the Spring Se at lock nut. Rotate th e A. Note that the actuator current changes. Spring Seat 1/4 turn or less in either direction. B. Adjust the Spring Seat until the A mmeter rea ds the same as other recorder actuator currents. B. All actuators should dra w 30 to 60 mA when th e engines ar e at RUN RPM, Off -line, and at normal operating temperature. C. Tighten the Spring Seat lock nut.
PRESSING DOWN ON THE LOCK NUT CAN CAUSE THE ENGINE TO OVER SPEED.
C. There are no measurable results from this step.
REASSEMBLY
A. Stop the engine.
A. There are no measurable results from this step.
B. There are no measurable results from this step. B. Disconnect the ammeter from the actuator circuit C. There are no measurable results from this step. and reconnect the throttle lead. C. Reattach the top cover plate with the four screws.
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2.3 Theor
D257272-1200-MAN-002
y of Operation
The Generator Unit controls the engine/generator set to deliver a constant AC supply to the Main AC Bus (refer to Figures 2-10 and Figure 2-11). Note that the AC Control Module contains the electronic Engine Governor, Voltage Regulator, Protection and Master/Slave circuits. 2.3.1 Hands-Off Circuit (HOC) The HOC consists of a battery charging circuit connected to two 12 Volt batteries. Phases A and B of the Main AC Bus are tapped, fused, and then rectified in a diode bridge to obtain the battery charging current. The batteries supply power for the Engine Starting circuit and the Pulse Pickup circuit in the AC Control Module (refer to Figures 2-11 and 212). 2.3.2 Generator Circuit Breaker The Generator Circuit Breaker isolates the Main AC Bus from the generator. It has a magnetic trip unit which trips the circuit breaker if current exceeds a preset value. The circuit breaker has a UV (Under Voltage) coil which is interlocked with an AC Control Module Protection circuit. This circuit trips the circuit breaker for various abnormal conditions such as reverse power, under/over-frequency and over-voltage. 2.3.3 Sy nchronization Panel When the Main AC Bus is energized and another generator supply is to be connected to the Main AC Bus, it is essential to match their voltage and frequencies before closing the Generator Circuit Breaker. This is accomplished by comparing the two frequencies by means of the Synchronization Box (shown in Figure 2-11). When the front panel SYNC switch is in the OFF position, the Sync panel VOLT meter indicates the Main AC Bus voltage. The needle of the SYNCHROSCOPE and the SYNC LIGHTS compare the frequencies of the Main AC Bus and the on-coming generator. The needle of the SYNCHROSCOPE rotates and the SYNC LIGHTS illuminate brightly when the two frequencies are out of phase. When the frequencies and phases are identical, there is no potential across the scope and the lights. As a result, the SYNCHROSCOPE needle remains stationary in the vertical position and both SYNC LIGHTS extinguish.
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2.3.4 Engine Governor The electronic Engine Governor controls the engine speed and horsepower, and thereby regulate the generator frequency (refer to Figures 2-13 and 2-14). Located in the AC Control Module, the Engine Governor is a feedback control circuit. See the Unique Devices section of this manual for a general description of the feedback control circuit. The governor output is connected to a Throttle Control Actuator (this controls the engine fuel line valve). The Throttle Control Actuator opens the valve in direct proportion to the current applied by the governor through its coil. The coil signal can be monitored at the AC Control Module across Pin 533 (Throttle+) and Pin 545 (Throttle-).
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ENGINE GOVERNOR (Continued)
Figure 2-10. Generator Unit Block Diagram
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Figure 2-11. Generator Unit Circuit
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Figure 2-11. Generator Unit Circuit (Continued)
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Figure 2-11. Generator Unit Circuit (Continued) www.nov.com
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Figure 2-11. Generator Unit Circuit (Concluded)
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Figure 2-12. Hands-Off Circuit (HOC) www.nov.com
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GEN. BUS DEMODULATOR SPEED FEEDBACK
Ι
REAL FEEDBACK
THROTTLE LIMIT
GEN.
PULSE PICKUP ENGINE
Z8
Z9
Q4 THROTTLE
SPEED REFERENCE
ENGINE CONTROL SWITCH
RAMP CKT.
MS LOGIC SLAVE SLAVE
MASTER/SLAVE LOGIC
AC MODULE
M/S SWITCH
MASTER SLAVE CURRENT CONTROL LOOP
SPEED CONTROL LOOP
Figure 2-13. Engine Governor Block Diagram www.nov.com
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Figure 2-14. AC Module Circuit www.nov.com
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Figure 2-14. AC Module Circuit (Continued) www.nov.com
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Figure 2-14. AC Module Circuit (Continued)
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Figure 2-14. AC Module Circuit (Concluded) www.nov.com
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The engine governor employs two feedback control loops. The Outer Speed Control Loop matches the actual generator frequency to the applied speed command. The Inner Current Control Loop matches the horsepower (KW) output of all engines on line. Speed Control Loop Op Amp Z8 issues a speed command which is proportional to the difference between the Speed Command and the Composite Speed Feedback. Speed Command is the Speed Reference signal as modified by the Engine Control switch ramp circuit and the Master/Slave Logic signal. Composite Speed Feedback is the sum of the Speed Feedback and Throttle Limit signals. Speed Reference This signal is set by the operator on the front panel SPEED ADJUST knob. The SPEED ADJUST knob is linked to a potentiometer which outputs a Zero to +11 VDC signal (pin 551). This corresponds to ≈46 to 54 Hz generator frequency. Engine Control Switch When the ENGINE CONTROL switch is moved from IDLE to RUN, the ramp circuit generates an ascending ramp. This steadily increases the gain of Op Amp Z8. The ramp circuit generates a descending ramp when the switch is moved from RUN to IDLE. Changeovers in engine speed are thus accomplished smoothly over a 10 Second time span. Master/Slave Logic A signal from the Master/Slave Logic circuit disables the Speed Reference signal when the Generator Unit is in the Slave mode. Speed Feedback This signal is a low-level DC analog of the engine speed. At TP 19 in the AC Control Module, the Speed Feedback signal is -2.5 VDC at 50 Hz and ≈+5.0 VDC at 35 to 40 Hz (the IDLE frequency). The Speed Feedback signal is derived either through a Tachometer Pulse Pickup circuit or a Voltage Demodulator circuit.
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Pulse Pickup Circuit A magnetic pickup device is mounted near the flywheel of the engine. The magnetic Pickup device emits a pulse each time a flywheel tooth passes by. These pulses are applied to the Pulse Pickup circuit in the AC Control Module as Tach+ (pin 526) and Tach(pin 527). The pulse signal is processed to derive the Speed Feedback signal. The magnetic pickup device generates it's own voltage and must produce ±2 VRMS. The Pulse Pickup also activates the HOC circuit (refer to Figure 2-12). This allows the HOC batteries to power the AC Control Module during the time that the generator voltage is building up. Frequency Demodulator Circuit Generator phase voltages out of AC Regulator transformer T10 are processed through a Demodulator circuit in the AC Control Module. The Demodulator output is inverted via Op Amp Z5 to obtain a negative Speed Feedback signal. Speed Feedback Switch The AC Control module is equipped with a circuit that permits the tachometer circuit to provide a speed feedback signal until the generator voltage is >200 VAC. When this occurs, the Speed Feedback Switch operates to connect the Frequency Demodulator Circuit output to the Frequency Regulator as the speed feedback signal. Speed Control Loop Op Amp Z9 issues a Throttle Current Command which is proportional to the error in signal levels between the Speed Command from Op Amp Z8 and the IREAL (KW) feedback. The output of Op Amp Z9 output is amplified through transistor Q4 and then applied to the Throttle Actuator Coil via Throttle+ (Pin 533) and Throttle- (Pin 545). Master/Slave Logic The Master/Slave circuit decides which current command Z9 should receive. If the generator is a Master, the Generator Cubicle M/S switch selects the Z8 output. If, however, the generator is a Slave, the Generator Cubicle M/S switch selects the Master/Slave signal (pin 543). This signal is the Master generator Z8 output. The Master/Slave Logic circuit detects whether the generator is the Master or Slave. The Master/Slave Logic circuit receives the M/S Logic signal from the Generator Circuit Breaker (pin 544) and Slave signals which are the M/S Logic signals of the other generators (pins 537 through 542). Table 2-7 is the Master/Slave Truth Table.
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Figure 2-15 shows the Master/Slave circuit. The Master/Slave Logic switches from ≈10 VDC (this voltage is approximate since it is partially dropped through a resistor) to -16 VDC when the circuit breaker is closed to connect the generator to the Main AC Bus. The Master/Slave Logic of each generator is connected to the Slave inputs of the following higher-numbered generators. As a result, the Master generator is always the one with the lowest number. Generator 1 is never a Slave unit since it doesn't receive any Slave inputs. If Generator 1 is off, the lowest-numbered generator connected to the Main AC Bus becomes the master. Note that Master/Slave lines of all generators are tied together. Table 2-7. Master/Slave Truth Table M/S Logic
Slave
Result
≈10 VDC
≈10 VDC
The ge nerator is disconnected from the Main AC Bus.
-16 VDC
≈10 VDC
The generator is the Master.
-16 VDC
-16 VDC
The generator is the Slave.
IREAL Feedback IREAL is a low-level DC analog of the real current produced by the generator (IREAL x E = KW). Generator phase voltages out of transformer T10 and line currents out of CT1, CT2, and CT3 are processed in the AC Control Module through a current demodulator to develop ITOTAL, I REAL and IREACTIVE signals (refer to Figure 2-10). 2.3.5 Voltage Regulator This controls the generator's exciter current through the exciter power supply to regulate the generator voltage (refer to Figures 2-11, 2-13, 2-16, and 2-17). The Voltage Regulator output can be monitored across Generator EX+ (TB11-7) and Generator EX- (TB11-8). It should be +10 VDC during IDLE and ≤+70 VDC during RUN for a nominal 100 VDC exciter. The Voltage Regulator employs two Feedback Control Loops (Inner and Outer). The Outer provides overall regulation by matching the generator voltage to the Voltage Reference. The Inner regulates the Exciter Field Supply. Op Amp Z1 issues the Exciter Current Command. It is proportional to the error difference between the Voltage Reference and Voltage Feedback signals. www.nov.com
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-16 VDC
-16 VDC
-16 VDC
CB AUX.
PIN
CB AUX.
O.
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N
PIN
CB AUX.
O.
N
PIN
O.
MS LOGIC
544
544
544
MASTER SLAVE
543
543
543
SLAVE
542
542
542
SLAVE
541
541
541
SLAVE
540
540
540
AC MODULE GEN. 1
AC MODULE GEN. 2
AC MODULE GEN. 3
N
Figure 2-15. Master/Slave Wiring Diagram Voltage Reference This is set by the operator on the front panel VOLTS ADJUST knob. The knob is linked to a potentiometer which outputs a Zero to +11 VDC signal (Pin 551). This +11 VDC corresponds to maximum voltage. Voltage Feedback Voltage Feedback is a low-level DC analog of the generator voltage. The generator AC line voltages are applied to the primary of Control Transformer (600:115 VAC) T10. T10 has a Delta/Star configuration. The six AC phase voltages from the secondary are rectified and reduced in value to give the feedback signal. IREACTIVE is a low-level DC analog of the generator reactive current (IREACTIVE x E = KVARs). VOLTAGE FEEDBACK EXCITER CURRENT FEEDBACK
VOLT.
Z1
REFER.
Z2
SCR FIRING CIRCUIT
GEN. BUS AC MTR
Ι
REACTIVE
EXCITER
EXCITER FIELD SUPPLY
UNDER FREQUENCY CUTBACK
AC MODULE
GENERATOR
EXCITER CURRENT CONTROL LOOP VOLTAGE CONTROL LOOP
Figure 2-16. Voltage Regulator Block Diagram www.nov.com
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Figure 2-17. Exciter Field Supply Circuit The voltage feedback and current feedback signals are processed in the AC Control Module to derive the IREACTIVE signal. The IREACTIVE signal is negligible during startup when the circuit breaker is open since minimal current flows out of the generator. Voltage Reference is the only effective signal. The VOLTS ADJUST knob can be adjusted to set the generator voltage to the operating level. When several generators are connected to the Main AC Bus, the terminal voltage is held fixed by other generators. The VOLTS ADJUST knob can now be adjusted to bias the IREACTIVE signal so as to distribute the reactive current (KVARs) equally among all generators. The Underfrequency Cutback Signal is developed from the frequency feedback. It applies a negative bias to the summing junction of voltage regulator Op Amp Z1 to cutback the generator voltage when frequency drops below 42 Hz. At IDLE, when the frequency is approximately 30 to 38 Hz, the voltage is between ≈300 VAC to 450 VAC. 2.3.6 Exciter Current Control Loop Op Amp Z2 controls the SCR firing circuit firing angle so that the exciter field current matches the Op Amp Z1 current command. The generator output (refer to Figure 2-17) is stepped down and rectified to produce the exciter current. Two rectifier circuits are used: a diode bridge made up of DB1 and DB2 during startup. Thereafter, a half- controlled bridge made up of two diodes (DB2) and two SCRs (SCR1, SCR2). During startup, generator residual voltage is rectified through the diode bridge and applied to the Exciter. The Metal Oxide Varistor (MOV) clamps bridge voltage to +250 VDC. Through positive feedback, the Exciter voltage, and in turn, the generator voltage quickly builds up. When the voltage is sufficient to energize the AC www.nov.com
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Control Module, build-up relay K1 energizes to switch the transformer output to the halfcontrolled bridge. The Exciter current feedback to the Op Amp Z2 summing junction (IEX + and IEX -) is +0.33 VDC per 1.0 Amp of Exciter current (or as adjusted by the connection of current-sensing resistors). 2.3.7 Protection Circuit This circuit (refer to Figures 2-13 and 2-18) compares the generator supply parameters against their respective preset limits. It consists of a Protection switch controlled by the reverse power, under/over-frequency and the over-voltage detector. The Protection switch, made up of transistor Q3 and relay K2, de-energizes the Under Voltage (UV) coil to trip the Generator Circuit Breaker. In some systems, the Generator Circuit Breaker has a Shunt Trip coil and a UV coil. In these systems, the Shunt Trip coil is wired to a switch on the Generator Cubicle. Closing this switch will energize the Shunt Trip coil, thus causing the Generator circuit breaker to trip.
GEN. BUS
AC CIRCUIT BREAKER
NO PULSE
I REAL
FREQUENCY FEEDBACK
REVERSE POWER DETECTOR Z6, Q1, K1 UNDER/OVER FREQUENCY DETECTOR Z7, Z14
PROTECTION SWITCH CB Q3, K2 TRIP
AC BUS
UV REVERSE POWER LIGHT UNDER FREQ. CUTBACK
VOLTAGE FEEDBACK
OVER VOLTAGE DETECTOR Q6 AC MODULE
Figure 2-18. Protection Circuit Block Diagram
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2.3.8 Reverse Power Detector When an engine is running normally, it supplies power to the Main AC Bus. This power is measured in terms of KWs. The front panel KW METER will display a normal positive value (> zero). However, when fuel to the engine is cut off due to overtemperature, oil pressure or because of a clogged fuel filter, the corresponding KW meter will display a negative reading (below zero). This is because power flows from the bus into the generator of the faulty engine. The generator functions as a synchronous motor which keeps the faulty engine running. This is termed the reverse power phenomenon. Normally-running engines will force a faulty-running engine to run at the same speed because of the magnetic coupling linking the generators by way of the Main AC Bus. Comparator Z7 in the Protection circuit monitors the IREAL (Kilowatts) feedback signal to trigger the Protection switch when the signal exceeds the preset limit. The time delay before tripping of the circuit breaker is a function of the level of the reverse KW. For example, if reverse power is 7%, the Circuit Breaker will trip in eight to 12 Seconds. 2.3.9 Under-Fre quency Detector Comparator Z6 triggers the Protection switch if the frequency feedback signal indicates that the frequency is below 42 Hz. Z6 also applies the Underfrequency Cutback signal to the Voltage Regulator circuit to reduce generator voltage. 2.3.10 Over-Frequency Detector Comparator Z14 triggers the Protection switch if frequency feedback signal says that the frequency is 56 to 57 Hz. 2.3.11 Over-Voltage Detector The Voltage Feedback signal is applied to a voltage divider circuit made of resistors R90 and R96. The output of the voltage divider will trigger Q6 if the line voltage >≈1.16 x normal bus voltage. 2.3.12 No Pulse Detector The No Pulse signal will switch from +16 VDC to -16 VDC when the Pulse Pickup circuit does not receive pulses from the Magnetic Pickup device (this is located near the engine flywheel).
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The Protection switch operates 100 mS after loss of magnetic pulses from the engine. This will prevent nuisance tripping of the circuit breaker. 2.4
Power Limit Circuit The Power Limit Circuit prevents the load from exceeding the capacity of engines on line. The circuit monitors IREAL (KWs) and ITOTAL (KVAs) of all the generators to keep the SCR bridges on line from demanding more of either KWs or KVAs that would exceed preset limits. This action distributes the available power equally among the SCR bridges. The power limit is normally set at ≈95% of the engine's horsepower rating and 100% of the generator's KVA rating. Note that IREAL and ITOTAL signals are generated in the AC Control Module and auctioneered together so that only the signal from the most highly loaded engine/ generator goes to the power limit circuit (see Figures 2-11, 2-14, 2-19 and 2-20)
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Figure 2-19. Power Limit PC Card Schematic Diagram
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Figure 2-20. Power Limit PC Card Layout
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The IREAL and ITOTAL signals are low-level DC analog signals representing the real and total currents developed by the generator. Generator line currents are stepped down through current transformers CT1, CT2 and CT3. The resulting low level AC signals are rectified and processed in a current demodulator in the AC Control Module with the generator phase voltages and rectified to derive IREAL and ITOTAL. The IREAL and ITOTAL signals of all generators connected to the Main AC Bus are auctioneered to select the signals with the highest positive values. The Power Limit signal (Op Amp Z1-6) goes positive as the load increases. It is +0.25 to +0.5 VDC measured at Pin 12 of the Power Limit Board at power limit. When the load exceeds the power limit, the Power Limit signal positively biases the negative Firing Reference signals to all SCR bridges on line. Op Amp Z2 ramps input signal to Z1 from 75% of Power Limit to allow the prime mover to handle a large change demand for power. Transistor Q1 turns on at power limit to turn on the Driller's Console POWER LIMIT light. In some systems, Op Amp Z4 output is used to drive the Driller's Console POWER LIMIT meter. 2.5
AC Ground Fault Detection Circuit This circuit (refer to Figure 2-11) consists of three lights. One side of each light connects to a phase of the Main AC Bus. The light's other side is grounded. If an AC phase becomes grounded, the light corresponding to that phase is extinguished. The other two lights become more brightly illuminated. A small C.T. drives a meter to indicate the percent of the AC ground. This manual's SCR Unit section describes the DC Ground Fault Detection circuit.
2.6 TROUBLESHOOTING Table 2-8 gives troubleshooting information for engine malfunctions. Table 2-9 gives troubleshooting information for Generator malfunctions. Table 2-10 gives troubleshooting information for the AC Control Module.
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Table 2-8. Engine Malfunctions SYMPTOM/PROBABLE CAUSE
ACTION
ENGINE WILL NOT RUN A. Engine overspeed lever not reset.
A. Reset the lever.
B. No power to the a ctuator. Throttle drops shut if B. The actions for the possible causes are: the fuel rack is n ot held open by ha nd. Th e possible causes are: 1. Leads to the throttle actuator are either open, short-circuited, or grounded.
1. Measure resistance between Generator TB11-1 and G enerator TB1 1-2 (Throttle + an d -) with both leads lifted. It should read 30Ω.
2. The AC Co ntrol Modul e in the Generato r Cubicle is no t providing co ntrol current to the throttle.
2. Measure cu rrent going to the Throttle Actuato r at throttle + or Throttle -. It s hould be 30 to 60 mA when e ngine is at run speed. If there is n o or low current, replace the AC Control Module.
3. No signal from the e ngine pul se pickup (if used).
3. Set the Voltmeter on it's lowest AC Volts range. The pulse pickup must deliver at least 2 VAC at engine crank speeds.
ENGINE RUNNING PROBLEMS A. Engine speed oscillates up and down at a steady A. Speed may oscillate for a sho rt time durin g col d rate. Observe the engine throttle arm. starts (this is normal). If it continues to oscillate, the AC Cont rol Module may be malfuncti oning. If so, call Ross Hill. B. Engine speed vari es erratically wit hout any steady oscillation. The possible causes are:
B. The actions for the possible causes are:
1. Intermittent connection on the throttle circuit.
1. Check for/repair any intermittent connections.
2. Defective AC Control Module.
2. Replace with spare AC Control Module.
C. Engine speed cannot be raised to 50 Hz.
C. The A C control voltage s from tran sformers n ot reaching the AC Control Module. Troubleshoot and repair. With the EG-B-1 0P throttle actuator, be sure SPEED knob setting is set to MAXIMUM.
D. Engine speed cannot be adjusted.
D. Faulty SPEED ADJUST rheostat. Troubleshoot and repair.
E. Engine speed and KW sharing problems.
E. AC Control Module is defective. Check the actuator current.
F. Generator Circuit Breaker does not a utomatically F. The actions for the possible causes are: trip for reverse power, under/overfrequency, or no pulse faults. There are two possible causes: 1. Defective AC Control Module.
1. Replace with spare.
2. Circuit Breaker UV is faulty.
2. Troubleshoot and repair/replace as required.
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Table 2-9. Generator Malfunctions SYMPTOM/PROBABLE CAUSE
ACTION
AC VOLTS ABSENT OR 250 VAC. This condition can be caused by Pin 501 not being tie d to grou nd and TB4-1 0. Troubl eshoot and repair/replace as required. B. Generator Voltage rea ches 6 00 VAC but DC Power Supply is not working correctly.
B. Measure the voltage at the following AC Control Module Pins when the Generator Voltage is 600 VAC: Pin 502 503 507 508
Voltage +16( ± 0.15) VDC -16( ± 0.15) VDC -160( ± 20) VDC +160( ± 20) VDC
If voltages are incorre ct or missin g, troubl eshoot an d repair/replace as required. GENERATOR VOLTAGE REFERENCE A. Unable to adjust generator voltage.
A. A low re ading at Pin 55 1 of the AC Control M odule will cause this p roblem. Ensure that the VOLTS ADJUST is set at ≈ half rotation. Mea sure the voltage at Pin 551, i t should read ≈+6 VDC when the Generator Output is 600 VAC. The range a djustment for the Gen erator Voltage Reference i s Zero to +11 VDC. If the voltage at Pin 551 is missing, trouble shoot and repair/replace as required.
ENGINE SPEED REFERENCE A. Engine spee d is low a nd/or AC Ci rcuit A. Absence of a signal at Pin 547 of the AC Control Module will Breaker trips due to underfrequency. cause this problem. Set the SPEED REFERENCE to 50 Hz and then me asure the vol tage at Pin 547. It should be +6 VDC. The range adjustment for the Engine Speed Reference www.nov.com
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SYMPTOM/PROBABLE CAUSE
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ACTION is Zero to +11 VDC. If the voltage at Pin 54 7 is mi ssing, trouble shoot and repair/replace as required.
CIRCUIT BREAKER TRIP A. Circuit Breaker has tripped.
A. Measure the voltage betwee n Pins 5 28 and 5 29 (the UV Trip). The voltage should be Zero Volts. If the voltage is +24 VDC, The T rip Relay in the AC Cont rol M odule h as not picked up and the Circuit Breaker has tripped.
THROTTLE OUTPUT A. Engine will only held by hand.
run when throttle is A. Measure the current from either Pin 533 or 545 when the engine is at RUN speed with NO LOAD, the re ading should be 30 to 60 mA. If the engine is at RUN sp eed with FULL LOAD, the reading should be 180 to 200 mA. Check for an ope n ci rcuit betwee n the throttle le ads and repair/replace as requi red. If the actuator resistance is 30 to 36Ω try replacing the AC Control Module.
EXCITER SCR GATE PULSES A. The Generator Voltage oscillates A. Using an O scilloscope, che ck for the pre sence of firing between 10 VAC an d 3 00 VAC as th e pulses at AC Control Module Pins 504 and 505. Field Supply Build-Up Relay opens and If the firing pulses a re missing, repl ace the AC Contro l closes. Module. EXCITER CURRENT FEEDBACK A. Generator voltages out of regulation.
A. Use an Oscilloscope to monitor the voltage between Pin 556 of the AC Control Mod ule and g round. Com pare this waveform with the waveform of a known good generator.
AC CURRENT FEEDBACK A. There is a lo ad imbalance between the generators conne cted to the Main AC Bus.
A. Measure the voltage bet ween the fo llowing AC Control Module Pin s with an Oscil loscope: 519 to 520, 521 to 522, and 523 to 524. The voltage measured should be Zero Volts at NO LOAD, and +2.5 VDC at FULL LOAD. If the voltage between a ny of these A C Control Mo dule Pins i s missing, troubleshoot and repair/replace as required.
MASTER/SLAVE A. A large KW load imbala nce bet ween A. Start an eng ine/generator and allow it to operate un til it is at the en gines. This is pro bably caused normal running temperatu re. Adjust the generator fr equency by impro per a ctuator current to 50 Hz. Disconnect the generater circuit breaker a nd then adjustment. measure the actuator curr ent a t e ither Pin 533 or 5 45 of the AC Control b y connecting a multime ter (set on the 1 00 mA There are several other, though scale) in series with the wir e going to the pin. Actuator current less comm on, reas ons for a must be 30 to 60 mA. If it is not within that range, adjust until it large KW load imbala nce: a is. Perform this with all o f the engine/generators. Ensure that defective KW Meter, a defective all of them have an ac tuator current tha t falls within a 10 mA AC Co ntrol Module, a bad range betwe en the smallest and lar gest. All actuator's Actuator, or an engine currents must fall with the 30 to 60mA range given above. problem. www.nov.com
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Document number Revision 01 Page 51
3 HI-LINE
D257272-1200-MAN-002
OPERATION
Hi-Line operation allows you to replace or supplement the electrical power obtained from your engine/generators with electrical power obtained from a commercial power company. If this source of power is available at your site, the cost savings of utilizing Hi-Line operation can be considerable. The Hi-Line operation is primarily performed by a step-down transformer and two circuit breakers (refer to Figure 2-21). There are other circuit components that allow control or monitoring of Hi-Line operation. These other components are shown in Figure 2-22. 13,800 V (or Higher) 3000 KVA 600 VAC
MCB1 1600AF
MCB2 1600AF/AT
BUS LOCATED IN HI-LINE CUBICLE
Figure 2-21. Typical Basic Hi-Line The values for the step-down transformer and circuit breakers shown in Figure 2-21 are given for illustration purposes. The values selected for your particular system may differ. In Figure 2-21, either or both of the circuit breakers will supply voltage from the step-down transformer to the system's AC Bus. If only one circuit breaker is closed, the power delivered to the system's AC Bus will be limited to the rating of the connected circuit breaker (typically ≈50% of the step-down transformer's rating). Figure 2-22 shows the lineup of a typical SCR system containing a Hi-Line Incomer Cubicle. The two circuit breakers in Figure 2-21 labelled MCB1 and MCB2 are the same as the Items 31(Hi-Line Incomer Circuit Breaker) in Figure 2-22. In the following item descriptions, all references are to items shown in Figure 2-22. Three items are Hi-Line controls: •
REVERSE POWER TRIP RESET Lighted Push Button (LPB) switch (Item 40).
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HI-LINE INCOMER CIRCUIT BREAKERs (Items 31). 24 HOUR SERVICE (281) 569-3050
Document number Revision 01 Page 52
D257272-1200-MAN-002
The REVERSE POWER TRIP LPB is disabled if the Engine/Generator cannot be paralleled with the Hi-Line Transformer. The remainder of the items on the Hi-Line Incomer Cubicle are indicator lights or meters. The AC AMMETER (Item 32) displays the total current being supplied by the Hi-Line's step-down transformer. The KILOWATT METER (Item 33) displays the total real power being supplied by the Hi-Line Incomer Cubicle. The KVAR METER (Item 34) displays the total reactive power being supplied by the Hi-Line Incomer Cubicle. The AC VOLTMETER displays the AC voltage being supplied by the Hi-Line Incomer Cubicle to the Main AC Bus. The UTILITY OK (Item 35) lamp illuminates if there is no problem with the incoming commercial power. The REVERSE PHASE ROTATION lamp (Item 36) illuminates if the incoming commercial power has been connected out of phase with the Main AC Bus. The PHASE LOSS lamp (Item 37) illuminates if there is a phase loss of the incoming commercial power. The MCB1 CLOSED lamp (Item 41) illuminates if Main Circuit Breaker 1 is closed. The MCB2 CLOSED lamp (Item 42) illuminates if Main Circuit Breaker 2 is closed.
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Document number Revision 01 Page 53
D257272-1200-MAN-002
Figure 2-22. Typical SCR System Containing a Hi-Line Incomer Cubicle
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Document number Revision 01 Page 54
4
D257272-1200-MAN-002
REMOVAL & REPAIR
4.1 Model
1000
In the Model 1000, the Generator Unit assemblies (refer to Figure 2-23) are mounted inside the Generator Cubicle on the door and side panels.
Figure 2-23. Model 1000 SCR/Generator Cubicle
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Document number Revision 01 Page 55
4.2 Model
D257272-1200-MAN-002
1400
In the Model 1400, the Generator Unit assemblies (refer to Figure 2-24) are mounted inside the Generator Cubicle on the door and side panels.
Figure 2-24. Model 1400 Generator Cubicle
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Document number Revision 01 Page 56
4.3 Model
D257272-1200-MAN-002
1861
In the Model 1861, the Generator Unit assemblies (refer to Figure 2-25) are mounted inside the Generator Cubicle on the door and side panels.
Figure 2-25. Model 1861 Generator Cubicle
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Document number Revision 01 Page 57
THIS PAGE INTENTIONALLY BLANK
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24 HOUR SERVICE (281) 569-3050
D257272-1200-MAN-002
FINAL DOCUMENTATION PACKAGE Engineering & Marine Services (PTE) LTD. SCR/Generator Control
Section 1.3
SCR Unit
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REFERENCE
RIG/PLANT
Mobile Modular Work Over Unit-1st ADDITIONAL CODE
SDRL CODE
TOTAL PGS
68 REMARKS MAIN TAG NUMBER CLIENT PO NUMBER
GMK710301D CLIENT DOCUMENT NUMBER
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DISCIPLINE
20605-48
REFERENCE DESCRIPTION
Engineering & Marine Services (PTE) LTD
This document contains proprietary and confidential information which belongs to National Oilwell Varco; it is loaned for limited purposes only and remains the property of National Oilwell Varco. Reproduction, in whole or in part; or use of this design or distribution of this information to others is not permitted without the express written consent of National Oilwell Varco. This document is to be returned to National Oilwell Varco upon request and in any event upon completion of the use for which it was loaned. © National Oilwell Varco
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Section 1.4
Drillers Console
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RIG/PLANT
Mobile Modular Work Over Unit-1st ADDITIONAL CODE
SDRL CODE
REMARKS MAIN TAG NUMBER CLIENT PO NUMBER
GMK710301D
CLIENT DOCUMENT NUMBER
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TOTAL PGS
41
DISCIPLINE
REFERENCE
20605-50
REFERENCE DESCRIPTION
Engineering & Marine Services (PTE) LTD
This document contains proprietary and confidential information which belongs to National Oilwell Varco; it is loaned for limited purposes only and remains the property of National Oilwell Varco. Reproduction, in whole or in part; or use of this design or distribution of this information to others is not permitted without the express written consent of National Oilwell Varco. This document is to be returned to National Oilwell Varco upon request and in any event upon completion of the use for which it was loaned. © National Oilwell Varco
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Section 1.5
Transformer Feeder Unit
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RIG/PLANT
Mobile Modular Work Over Unit-1st ADDITIONAL CODE
SDRL CODE
REMARKS MAIN TAG NUMBER CLIENT PO NUMBER
GMK710301D
CLIENT DOCUMENT NUMBER
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TOTAL PGS
5
DISCIPLINE
REFERENCE
20605-52
REFERENCE DESCRIPTION
Engineering & Marine Services (PTE) LTD
This document contains proprietary and confidential information which belongs to National Oilwell Varco; it is loaned for limited purposes only and remains the property of National Oilwell Varco. Reproduction, in whole or in part; or use of this design or distribution of this information to others is not permitted without the express written consent of National Oilwell Varco. This document is to be returned to National Oilwell Varco upon request and in any event upon completion of the use for which it was loaned. © National Oilwell Varco
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Section 1.6
Motor Control Center
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RIG/PLANT
Mobile Modular Work Over Unit-1st ADDITIONAL CODE
SDRL CODE
REMARKS MAIN TAG NUMBER CLIENT PO NUMBER
GMK710301D
CLIENT DOCUMENT NUMBER
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TOTAL PGS
12
DISCIPLINE
REFERENCE
20605-53
REFERENCE DESCRIPTION
Engineering & Marine Services (PTE) LTD
This document contains proprietary and confidential information which belongs to National Oilwell Varco; it is loaned for limited purposes only and remains the property of National Oilwell Varco. Reproduction, in whole or in part; or use of this design or distribution of this information to others is not permitted without the express written consent of National Oilwell Varco. This document is to be returned to National Oilwell Varco upon request and in any event upon completion of the use for which it was loaned. © National Oilwell Varco
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Section 1.7
Drawworks Braking
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REFERENCE
RIG/PLANT
Mobile Modular Work Over Unit-1st ADDITIONAL CODE
SDRL CODE
TOTAL PGS
28 REMARKS MAIN TAG NUMBER CLIENT PO NUMBER
GMK10301D CLIENT DOCUMENT NUMBER
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DISCIPLINE
20605-56
REFERENCE DESCRIPTION
Engineering & Marine Services (PTE) LTD
This document contains proprietary and confidential information which belongs to National Oilwell Varco; it is loaned for limited purposes only and remains the property of National Oilwell Varco. Reproduction, in whole or in part; or use of this design or distribution of this information to others is not permitted without the express written consent of National Oilwell Varco. This document is to be returned to National Oilwell Varco upon request and in any event upon completion of the use for which it was loaned. © National Oilwell Varco
National Oilwell Varco 11000 Corporate Centre Dr Houston, TX 77041 USA Phone +1 281-854-0400 Fax +1 281-854-0607
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Section 1.8
Unique Devices
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RIG/PLANT
Mobile Modular Work Over Unit-1st ADDITIONAL CODE
SDRL CODE
REMARKS MAIN TAG NUMBER CLIENT PO NUMBER
GMK710301D
CLIENT DOCUMENT NUMBER
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TOTAL PGS
110
DISCIPLINE
REFERENCE
10567-02
REFERENCE DESCRIPTION
Engineering & Marine Services (PTE) LTD
This document contains proprietary and confidential information which belongs to National Oilwell Varco; it is loaned for limited purposes only and remains the property of National Oilwell Varco. Reproduction, in whole or in part; or use of this design or distribution of this information to others is not permitted without the express written consent of National Oilwell Varco. This document is to be returned to National Oilwell Varco upon request and in any event upon completion of the use for which it was loaned. © National Oilwell Varco
National-Oilwell Varco 11000 Corporate Centre Dr. Houston, Texas 77041 USA Phone +1 281 854 0400 Fax +1 281 854 0607
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FINAL DOCUMENTATION PACKAGE Engineering & Marine Services (PTE) LTD. SCR/Generator Control
Section 1.9
Spare Parts List
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Spare Parts List M1000 SCR/Generator Control
RIG/PLANT
REFERENCE
REFERENCE DESCRIPTION
Mobile Modular Work Over Unit-1st
7272 C00,01,02,04
Engineering & Marine Services (PTE) LTD.
ADDITIONAL CODE
GMK710301D
This document contains proprietary and confidential information National Oilwell Varco which belongs to National Oilwell Varco, it is loaned for limited Rig Solutions - Western purposes only and remains the property of National Oilwell Hemisphere Varco. Reproduction, in whole or in part, or use of this design or 11000 Corporate Centre Dr distribution of this information to others is not permitted without Houston Texas 77041 the express written consent of National Oilwell. This document is to be returned to National Oilwell Varco upon request and in any Phone 281 854 0400 event upon completion of the use for which it was loaned. Fax 281 854 0607 © Copyright National Oilwell Varco
CLIENT DOCUMENT NUMBER
DOCUMENT NUMBER
REVISION
D257272-1200-SPL-001
01
SDRL CODE
TOTAL PGS
4 REMARKS MAIN TAG NUMBER CLIENT PO NUMBER
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DISCIPLINE
Page: 2
Document Number: Revision:
D257272-1200-SPL-001 01
REVISION HISTORY
01 Rev.
18.12.2008 Date (dd.mm.yyyy)
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Issued for Information Reason for issue
SMA
NEG
KM
Prep.
Check
Appr.
SPARE PARTS LIST SPARE PARTS LIST
Page: 3
EQUIPMENT DESCRIPTION
M1000 SCR/Generator Control
ALARM-120VAC,HORN,GREY FEDERAL BDGE- 30A,1000V,1PH BLWR-E/1 ,600V,1PH,.75HP,60HZ CAP- 1 MFD,2000VDC CB-1200 ,3P, 600VAC, 42KIC,1 200AF,NON AUTO CB-1600AF,3P, 600VAC, 65KIC W/ACC,SHF16B216CB-CLOSING COIL,120VAC,F/POWER BREAK II,REMOTE CLOSE CB-CONT,0A0B2C,FUW SPECTRA RMS F/SGLA CB'S CB-UVR, 24VDC,F/GE POWER BREAK II CB-UVR, 24VDC,FUW ALL SPECTRA RMS CB'S CONN-OUTLET BOX,1.5X4X4,W/.5KO CONN-RECP,3W,2P,15A CONT-BLK,0A1B0C,OT,RED CONT-BLK,1A0B0C,OT,GRN CONTR-1250A, P,1000VDC,125VDC COIL, A B C CONT,A/C CONTR-1800A,1P, V C, 74VDC COIL,ROSS HILL,MDL 1800/C DIAL-15TURN REPL D211 BECKMAN FUSE- .6A, 500V C, 10KIC, CLASS M FUSE- 2. A, 500V C, 10KIC, CLASS M FUSE- 3.5A, 500V C, 10KIC, CLASS, FUSE- 6. A, 500V C, 10KIC, CLASS M FUSE- 15. A, 600VAC,200KIC CLASS CC FUSE- 900. A, 1300V C, KIC, CLASS,IND FUSE-HOLDER,1P, 30A, 600VAC, CLASS M FUSE-HOLDER,2P, 30A, 600VAC, CLASS M FUSE-HOLDER,3P, 30A, 600VAC, CLASS M FUSE-HOLDER,3P,30A,600VAC,FUW 1.5" FUSE,UL KNOB-S/S,ROTARY TORQUE LMT METER-AAC,0-1500,HOYT,0-1MADC, 200 OHM,NOI LOGO METER-ADC,0-1000,EDGE,0-1MA RA TING,TYPE 185 METER-ADC,0-1500,HOYT,0-1MADC, 200 OHM,NOI LOGO METER-HOUR,99999.HRS,120V,60HZ NON RESET,2.5"SQ METER-KW,0-1200,HOYT,0-1MADC, METER-PWR LMT,0-100%,PANEL,EDG EWISE,HORIZONTAL,0METER-VDC,0-1000,HOYT,0-1MADC, 200 OHM,N.O.V. LOGO MODULE-AC,(JOB CAL'D) MODULE-DC,SERIES,W/1K OHM RES INSTALLED FOR VFB AT PB-110VAC ,30MM,YEL,MOMENT PB-CAP,RED,DUST CVR PB-CONT,1A0B0C, 6A,FUW MPX PB-KIT, A B C,3HD OFF-IDLE-RUN PB-RING,PROT F/MSHRM HD P/P PCA-3PH (L-N) CUR FDBK W/1 OHM 10W BURDEN (X2) M1 PCA-VOLTAGE FEEDBACK PC-DRLS CONS,ADD:JUMPER-PIN 1 TO D23 CATHODE PC-GEN EXC,REV 120 OR 240V RATED PC-S&A,PWR SPLY,60V PL- 24VAC/DC,22MM,GRN LED,COMP PL-110VAC ,22MM,CLR LED,COMP DC,22MM,RED INTEGRATED PL-110VAC ,22MM,RED LED,COMP PL-110VAC ,22MM,YEL LED,COMP PL-110VAC ,30MM,RED LED,KIT (ML1-100R)+LAMP PL-110VAC ,30MM,WHT LED,KIT (ML1-100W)+LAMP REGULATOR-W/FILTER,0-15PSI W/G AUGE,20 MICRON
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Ref. BOM No.
VSP Platfrom Work Ocean Endeavor Over P.O. No.
Currency
GMK710301D 126-016632
0408-0001-00 0000-6817-69 0100-0302-01 0505-0014-00 0302-1636-03 0000-6975-23 0000-6972-34 0000-6897-31 0000-6982-13 0000-6927-67 1102-0063-00 0002-0523-45 0000-6854-48 0000-6854-47 0401-0015-00 0100-0389-02 0609-0002-00 0301-0009-00 0301-0010-00 0301-0011-00 0301-0012-00 0000-6981-43 0000-6935-14 0000-6984-02 0000-6988-00 0000-6988-01 0000-6980-71 0613-1233-01 0801-0009-22 0000-6810-01 0801-0070-22 0000-6905-90 P250002-0007-62 0801-0071-00 0801-0060-22 0521-2500-00 0522-2400-27 P250000-9692-93 0000-6921-48 P250000-9692-97 0100-1518-01 0000-6961-13 0510-0400-00 0509-3000-00 0509-2500-01 0509-7901-00 0510-0500-00 0406-0061-00 P250000-9692-38 0406-0065-00 0406-0067-00 P250000-9692-31 P250000-9692-35 0000-6892-12
Ref./Ser. No.
TWO YEAR OPER. SPARES
1 2 1 1 1 1 1 1 1 1 1 1 2 2 2 3 1 20 20 20 20 20 10 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Delivery time for parts (in weeks)
NOI Part No.
NOI Part No.
USD
Recommended
Item / Ref. No.
Quantity to be ordered
COMMISSIONING SPARES Recommended
Item No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54
Rig
Quantity to be ordered
Engineering & Marine Services TAG No.
MATERIALS DATA
Description of Recommended Spare Parts
DOC. NO:D257272-1200-SPL-001
Customer
Unit Price (__) USD (Currency)
INQUIRY NO: Engineering contractor: National Oilwell Varco Engineering contractor: National Oilwell Oilwell Varco, 1530 W. Sam Houston Pkwy.N, Suppliers name and address: National Suppliers name and address: Houston NationalTX Oilwell, 770431530 W. Sam Houston Pkwy.N, Houston TX 77043 Phone: 713-935-8000, Fax.: 713-935-8305 Phone Numbers : Phone: 713-935-8000, Fax.: 713-935-8305 AfterSales SalesSpare SpareParts: Parts:GERRY.WHITE Clifton Hartoon (Extension Suppliers contact person: After (Extension ## 7411) 8898) EMAIL:
[email protected] [email protected]
SPARE PARTS LIST SPARE PARTS LIST 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
RES- 25. OHM, 55W, 5% RES-150. OHM,225W, 5% (OLD CAT# 0905) RHEOSTAT- 1KOHM, 25W, %,TY PE H RHEOSTAT- 1KOHM,DUAL ASSY,RTI LMT RLY-120VAC,2A2B0C, 10A,IEC DE- VICE,50/60HZ RLY-120VAC,4A0B0C, 10A,IEC D EVICE,50/60HZ SCR-2000V,1200A,DV/DT=1KV/USECW/19" LEADS,150USEC TURN SW 611G8005 PRESSURE PUFFER SWEIVEN DUAP SNAP SUB SW- W-2,1-1-12,12P NONSHORTING ROLLER SW-MICRO,250V,10A RATED,U/W0000-6953-60. SW-PB,1A,1B,2 POS,PUSH/PULL TY PE,RED CAP SW-PRESS,1.4 -5.5 IN WTR DIFF SW-SEL,2POS,LEVER,OT OPR SW-SEL,3POS,LEVER,OT OPR SW-TEMP,190+/- 5DEG F OPEN ONRISE,160+/- 7DEG F CLOSE ON XFMR- 2KVA,600 :240/120,CPT 1PH,60HZ,EXCITER XFMR- 50VA,600 : 26.5 ,CPT XFMR- 66VA,600 :115/ 11,CPT DEL:DEL & 6PH WYE,DC XFMR-140VA,600 :115 ,CPT DEL:6PH WYE,AC REGULATOR XFMR-150VA,600 : 45 ,CPT DEL:3PH WYE,CONTR SPLY XFMR-PULSE,26. :14. T,W/BLACKEPOXY RESIN,DRILLING
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0504-0012-00 0504-0005-00 0506-0001-00 0100-0135-00 0000-6808-51 0000-6941-50 0501-0616-10 I110-001008 0000-6880-37 0000-6953-61 0000-6803-64 0000-6837-15 0000-6854-44 0000-6854-45 0403-0008-01 1003-0091-01 1003-0095-00 1003-0007-00 1003-0008-00 1003-0066-00 0100-0357-00
1 1 1 1 2 1 6 1 1 2 1 1 1 1 2 1 1 1 1 1 1
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FINAL DOCUMENTATION PACKAGE Engineering & Marine Services (PTE) LTD. SCR/Generator Control
Section 1.10
SCR/GeQTest Procedure
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SCR/Gen Test Procedure SCR/Generator Line-up Test Procedure
RIG/PLANT
0RELOH0RGXODU:RUNRYHU8QLWVW
ADDITIONAL CODE
SDRL CODE
TOTAL PGS
32 REMARKS MAIN TAG NUMBER CLIENT PO NUMBER CLIENT DOCUMENT NUMBER
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DISCIPLINE
REFERENCE
J257272
REFERENCE DESCRIPTION
EQJLQHHULQJ 0DULQH6HUYLFHV 37( /7'
This document contains proprietary and confidential information which belongs to National Oilwell Varco; it is loaned for limited purposes only and remains the property of National Oilwell. Reproduction, in whole or in part; or use of this design or distribution of this information to others is not permitted without the express written consent of National Oilwell Varco. This document is to be returned to National Oilwell Varco upon request and in any event upon completion of the use for which it was loaned. © National Oilwell Varco
National Oilwell Varco Rig Solution Group 1530 W. Sam Houston Pky N Houston, Texas 77043 (USA) Phone + 713-935-8000 Fax + 713-827-8460
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Section 1.11
Certificate of Compliance
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Certificate of Compliance VSP WORKOVER RIG SCR / GENERATOR CONTROL
RIG/PLANT
REFERENCE
7272 C00,02
Mobile Modular Work Over Unit-1st ADDITIONAL CODE
SDRL CODE
TOTAL PGS
4
REMARKS MAIN TAG NUMBER CLIENT PO NUMBER
GMK710301D
CLIENT DOCUMENT NUMBER
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DISCIPLINE
REFERENCE DESCRIPTION
Engineering & Marine Services (PTE) LTD
This document contains proprietary and confidential information which belongs to National Oilwell Varco, it is loaned for limited purposes only and remains the property of National Oilwell Varco. Reproduction, in whole or in part, or use of this design or distribution of this information to others is not permitted without the express written consent of National Oilwell. This document is to be returned to National Oilwell Varco upon request and in any event upon completion of the use for which it was loaned. © Copyright National Oilwell Varco - 2006
National Oilwell Varco Rig Solutions - Western Hemisphere 11000 Corporate Centre Dr Houston Texas 77041 Phone 281 854 0400 Fax 281 854 0607
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REV
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