FOR INFORMATION
B P NANDA
Digitally signed by B P NANDA DN: cn=B P NANDA, o=AIIL, ou,
[email protected],c=IN Date: 2011.03.09 13:21:58 +05'30'
C & SEle ctricLtd B-1, Site-IV, Site-IV, Surajpur Industrial Area, Kasna Road, Greater Noida. Dist :- G.B. Nagar (U.P (U.P.) .) Ph. No. :- 91-0120-39 91-0120-3914500-01 14500-01 Fax No. 91-0120-2341 91-0120-2341896 896 Website : www.cselectric.co.in
Project:
TIRODA THERMAL POWER PROJECT PROJECT 3300 MW (2x660 MW Phase – I + 1 x 660 MW Phase – II & 2x660 MW Phase III ) Tiroda, Gondia District, Maharashtra Owner:
ADANI POWER MAHARASHTRA LIMITED TIRORA, MAHARASHTRA
EMPLOYER
:
CONSULTANT :
Powergen Infrastructure (L.L.C.) FICHTNER Consulting Engineers (India) Private Limited
CONTRACTOR
C&S Electric Ltd. B-1, SITE-IV, SURAJPUR INDL. AREA, KASNA ROAD, GAUTAM BUDH NAGAR (U.P.)
:
APML DOC.NO.
: TR1-GBD-GBD-DE-I-020
Rev.
00
Rev.
00
PROJECT DOC. TITLE : Installation, Operation and maintenance manual for 24 KV IPB CONTRACTOR DOC. NO.: C-1000-0310-11599 APPROVAL STATUS :
00
26.02.2011
REV
DATE
VK INITIALS
SIGN
PREPARED
MB INITIALS
SIGN
INITIALS
CHECKED
KV
Doc. for Submission
SIGN
DETAILS OF REVISION
APPROVED
1
Project : Project : 2X600MW Phase-I+1X660 MW PHASE- II TIRODA Doc. Title : Erection & Operation Manual for 24 KV 25000A/15000A/2500A IPBD Rel. Doc. No.- TIR1- GBD –GBD- DE-I-20 C&S Doc. No. – C-1000-0310-11599
CONTENTS PART NO.
DESCRIPTION
PAGE NO. 3
I
DETAIL OF BUSDUCT
II
SALIENT FEATURES OF ISOLATED PHASE BUSDUCTS
III
FACTORY ASSEMBLY AND ROUTINE TESTS
IV
MATERIAL RECEIPT HANDLING)
V
STORAGE
VI
PRE-ERECTION
VII
ERECTION
VIII
PRE COMMISIONING
IX
POST COMMISIONING
22 – 23
X
APPROVED DRG. MDL
24
(UNLOADING,
INSPECTION
4–6 7
&
8-9 10 - 11 12 13 – 20 21
2
Project : Project : 2X600MW Phase-I+1X660 MW PHASE- II TIRODA Doc. Title : Erection & Operation Manual for 24 KV 25000A/15000A/2500A IPBD Rel. Doc. No.- TIR1- GBD –GBD- DE-I-20 C&S Doc. No. – C-1000-0310-11599
DETAIL OF BUSDUCT SL. NO.
UNIT
1
2
3 & 2 , 1 # T I N U
3
TYPE OF BUSCUCT
RATING (KV/Amps)
ENCLOSURE SIZE (IN MM)
BUSBAR SIZE (IN MM)
MAIN
24 Kv 25000A
1520 O.D. 12 THK. Al. ALLOY
1000 O.D. 14 THK. Al. ALLOY
DELTA
24 Kv 15000A
1070 O.D. 9 THK. Al. ALLOY
550 O.D. 14 THK. Al. ALLOY
TAP-OFF
24 Kv 2500A
688 O.D. 5 THK. Al. ALLOY
168.3 O.D. 11 THK. Al. ALLOY
3
II - SALIENT FEATURES OF ISOLATED PHASE BUSDUCTS
1.0
BUSDUCT
The Busduct system offered is of Isolated phase, natural cooled and continuous housing type as elaborated in our Technical particulars and drawings. 2.0
CONDUCTORS
The Bus Conductor is in Tubular form, formed from Aluminium alloy Sheets by welding into standard sections. Successive standard sections are joined together by means of welding duly aligned with guide plate/backing ring inside the Conductor in one of the
II - SALIENT FEATURES OF ISOLATED PHASE BUSDUCTS
1.0
BUSDUCT
The Busduct system offered is of Isolated phase, natural cooled and continuous housing type as elaborated in our Technical particulars and drawings. 2.0
CONDUCTORS
The Bus Conductor is in Tubular form, formed from Aluminium alloy Sheets by welding into standard sections. Successive standard sections are joined together by means of welding duly aligned with guide plate/backing ring inside the Conductor in one of the sections. However for Tap-Off Busduct, extruded tubes are used as Busbar. 3.0
ENCLOSURES
The Main, Tap-Off Enclosures are made from Aluminium Alloy Sheets rolled to a standard length. The successive standard lengths of Enclosures are joined together by means of bonding Enclosures at site. These bonding Enclosures in two semi circular halves are kept over the successive section and welded circumferentially and longitudinally, thus obtaining a perfect electrical bonding between consecutive enclosures and achieving good mechanical strength and weather proofing. The three phase enclosures are shorted with adequate size of Aluminium sheets/plates at the equipment ends at appropriate locations. Such an interconnection allows the circulation of enclosure currents which sets up magnetic fields equal in magnitude and opposite in direction to that produced by the Bus conductor. Thus the leakage flux outside the enclosure is reduced by 95% both under normal and fault conditions resulting in negligible heating on surrounding structures and also reducing electromagnetic forces between phase conductors to a v ery large extent.
4.0
INSULATORS AND ITS ASSEMBLY
Designed for working continuously in a high ambient temperature, supporting insulators are made up of Porcelain. Insulators are secured on a base plate and bolted on circular spigots welded on the enclosure. The base plate of insulators can be unscrewed and removed from outside of 4
the enclosure thereby ensuring the removal of the insulator without disassembly of the bus. 5.0
ENCLOSURE SUPPORT
Main Enclosures are supported at the specified location by two semi-circular channel rings bolted around the enclosure. Insulating pads are inserted between the bottom ring and the Support beam in order to avoid circulation of current in the support structures which are not designed for the purpose and the impedance of which is unknown. 6.0
BUS CONDUCTOR JOINTS
Adjacent busbar sections are welded circumferentially at site with the guiding strip/backing strip inside the busbars. 7.0
TERMINATIONS
Terminations of bus conductor at Generator/ Generator Transformer, PTSP Cubicle and UAT are done by means of Copper flexible. All the equipment end busbar connections are made with non magnetic hardware’s to achieve an efficient joint. On all equipments, bus enclosures are connected on the equipment by means of Adaptor boxes. The flanges are connected with hardwares with gaskets in between the flanges to render the Busduct dust and vermin proof. 8.0
RUBBER BELLOWS
EPDM Rubber bellows are provided near termination at Phase Side, Generator transformer, UAT, PTSP Cubicle. 10
SUPPORT STEEL STUCTURES
All steel supporting structures supplied are Hot dip galvanised. 11
GROUNDING
The Busduct is grounded at appropriate location for which provision is made at the enclosure end shorting for connection to station earth bus. Preferably Grounding of Busduct enclosure shall be done at only one point. However all Support structures shall be grounded conveniently.
5
12
PAINTING
Busbar exterior and enclosure interior are painted with Matt Black while the Enclosure exterior is painted Epoxy based Light grey 631 of IS: 5 13
SILVER PLATING
All contact surfaces of Busbar bolted joints are silver plated to provide low resistance and thickness of plating is 8~10 Microns.
******
6
III - FACTORY ASSEMBLY & ROUTINE TESTS
Before assembly of various busduct sections detailed study of Erection & Key drawing and other contract drawings is made to ensure no part of busduct is missed for a similar site condition. The busducts after assembly are checked thoroughly for any fouling and electrical clearances. Power frequency, High Voltage test is conducted on the entire assembly as routine tests. After completion of above tests the busducts are dismantled and each busduct length is separately kept in a casing, with a packing list. All assemblies have their erection marks clearly marked up.
----------x----------
7
IV-MATERIAL RECEIPT UNLOADING, INSPECTION, HANDLING & STORING 1.
Before beginning the unloading operation, make a thorough inspection of the complete consignment for verification of external damage due to rough handling or unusual weather conditions or any other cause. If any damage is found or suspected, report at once, with particulars.
2.
During unloading and handling operation if loose parts are found in the bottom of equipment, preserve them for re-assembly or replace them in the respective locations.
3.
Proper crane / sufficient man power shall be employed for unloading the packings from the trucks / wagons. Under no circumstances the packings shall be ro lled / pushed down from the wagons / trucks, since the same may cause damage or deformation to the housings. If the edges are damaged, gaskets and the retaining arrangement will not effectively seal the joints between the housings.
4.
Handle all packages gently as the busducts may be sent partly assembled on insulator Supports.
5.
While unloading the packages, sufficient care shall be taken to avoid any damage due to sharp crowbars or opening levers.
6.
Check carefully contents of the case / crate with the packing slip kept inside the package.
7.
After inspection, all equipment’s shall be placed back in respective packages and kept duly protected until they are removed for installation.
8.
All busduct packages that are stored shall be protected from the weat her.
9.
All steel structures shall be stacked in systemat ic way for easy removal during erection.
10.
It is desirable to stock the material in such a fashion that it can be removed in the order in which it will be installed.
11.
It is desirable when storing the cases or assembly to support the busduct on their feet and not at any intermediary point.
12.
All busbar jointing bolts and washers shall be properly kept inside the cases. Do not expose them to atmosphere.
13.
All insulator shall be stored separately. Please ensure no other material is stacked over these items under any circumstance. 8
14.
All equipment termination copper braided / aluminium laminations are to be kept inside the polythene / gunny bags untill t hey are required for termination. Also ensure no surface scratching is done due to other materials, stack t hem separately.
9
V- STORAGE INSTRUCTIONS 1.
All assemblies/components shall be properly packed in the original packing with suitable polythene covers etc.
2.
All packages other than busducts and steel structures must be kept in a well ventilated and covered area.
3.
All small fragile item shall be stored in proper container at safe locations to avoid any damage.
4.
Identification marks or tags shall be kept for each item for easy identification.
5.
All the items shall be stored in a systematic way for easy removal and to avoid any damage.
6.
The heavy packages shall be stored o ne above the other.
7.
Suitable slings shall be used to avoid impact on packages while handling.
8.
The structures shall not be laid directly on ground.
9.
The structures shall be stacked on wooden battens to avoid direct contact with soil or water.
10.
Ensure that galvanizing is not damaged during storage.
11.
The structures shall be stored systematically for easy removal and that as far as possible they are stacked section and size-wise to facilitate easy identification and removal.
12.
The hardware such as bolts and nuts, washers shall be stored in indoor and kept size - wise in racks, preferably with a coating of protective oil , in separate compartment for easy identifications.
13.
The enclosure shall be handled carefully, aluminum being softer material.
14.
The busbar shall be fixed properly inside the enclosure to avoid any slippage of busbar while handling.
15.
The contact surfaces of busbars shall be protected properly.
16.
The enclosures shall not be laid directly on ground but stacked on wooden battens to avoid direct contact with soil or water.
17.
The enclosure ends shall be covered to avoid entry of dust and water.
18.
The inspection covers shall be tightly closed to avoid any entry of water/dust 10
inside the enclosure. 19.
The fragile and sensitive items such as / Seal-Off-Bushings etc. shall be stored in indoor in well ventilated area with adequate care to prevent physical damage or dust.
20.
The rubber bellows shall be stored in such a way to avoid direct contact with heat, moisture which may cause deformation of the components.
21.
The contact of products with sharp ite ms shall be avoided.
22.
All items shall be kept in original packing with proper identification tags.
23.
The contact surfaces of connections and flexibles shall be well protected to avoid any damage.
24.
The rubber components, gaskets busbar joining compounds etc. shall be protected against dust grease and moisture.
25.
The Copper flexibles made of braided / thin laminations shall be prevented from physical damages and protected against dust, grease and moisture. STORAGE TYPE
1. Busduct elements
outdoor
2. Flexibles, Hardwares, Cubicle, equipment etc.
covered under lock & key.
11
VI - PRE-ERECTION
1. All documents especially Bill of Material, Layout drawings, erection Key diagram for Busducts and structures shall be made available. 2. All tools and tackles shall be made available. All civil details and equipment locations must be checked thoroughly to ensure perfect matching of busduct sections as per field quality plan. 3. The Rubber bellows shall be in good condition and made ready for assembly / Erection. 4. The insulators and the busbars shall be thoroughly cleaned with dry air before and after the assembly. 5. The ends of busbars shall be smooth and free from dust, dents and paint etc. 6. The inside of enclosure shall be cleaned and free of foreign materials. 7. All surfaces that are to be bolted of busbars and earth bus etc. shall be thorougly cleaned and free oreign materials.
*****
12
VII - ERECTION A)
GENERAL
Before the installation of busducts at site the Erection Key / Assembly Drawings shall be studied in detail and an easy and better procedure shall be developed. If the materials have been stored properly and correct inventory has been kept, the installation work can proceed without the delay in searching for missing parts. It is always preferable to begin work at one end and proceed to the other end. At this juncture, check up whether necessary arrangements are provided at euipment terminals for terminating busducts. Use proper tools like tirfor, pulley block, cranes etc. for lifting the enclosures. Proper selection of pulleys
(2 or 3 sheaves) with good quality manila
ropes will improve the mechanical advantage and minimize the strain to erection crew, particularly when busducts are to be installed at high elevations. Stringing the busducts for lifting and moving shall be done by skilled erectors and it shall be supervised that the strings are provided properly so that the enclosures are lifted in a balanced manner without giving chance for slip off. Check for the correctness of erection number on the enclosure before lifting and erecting the same in the proper location. All enclosures must be in position and alignment should be checked before proceeding with the bolting / welding of busbars. After the bus and support housings are in position, the insulators shall be wiped of and all dust and foreign matter removed from inside the enclosures. During the assembly, all the open portions of the enclosure shall be protected from the accumulation of dust or dirt. Provision shall be made to prevent the entry of dust into the portion of the enclosures which have been erected. 1.
SUPPORT STRUCTURES i.
Check up whether all foundation for steel columns have been casted and fixing plates have been embedded.
ii.
A thorough study of supporting structure layout drawings is essential before taking up the steel erection. It shall be ensured that all elevations are as per the drawing and any deviation shall be brought to the notice of the customer. Under no circumstance should the column erection commence until the elevation matches with the approved drawings.
13
iii.
After ascertaining the correct location of embedded plates, weld the studs and fill up the gap between the embedded plate and floor with lean concrete or plaster such that the surface is in flush with the finished floor with only studs projecting out.
iv.
Install supporting members in their respective places.
v.
Verify with the drawings frequently to ensure correct installation of structures.
vi.
Keep the transverse member in position and tighten them after ascertaining the location.
vii.
Avoid using twisted member. This will cause great difficulty while aligning the enclosures.
viii. 2.
Ensure all members of structures are properly grounded. ENCLOSURE Each enclosure must be provided with two supports, one at either end. The site
assembly work should start from a fixed position. This may be either from the Generator transformer or Generator side. 3.
BUSBARS Before proceeding with the busbar assembly, the insulators shall be thoroughly
checked for any mechanical damage during transit. Further, it is desirable to megger the individual busduct sections before joining them together. If poor results are obtained, the insulators are to be checked. Meggering the insulators at the initial stage avoids replacement of insulators after the final assembly of busducts which is laborious and time consuming. For bolted joints in busducts, the following joining procedure should be adopted. 3.1 i.
JOINING PROCEDURE (For Bolted joints) Apply a thin film of suitable grease on the joint surface of busbar and splice plate. Rub with steel wool on the greased joint surface. Wipe away with a clean cloth.
ii.
The surface will have a silvery gleam which will contrast with the surface to the aluminum not cleaned then apply Multipurpose grease at once , on the joint surface(any delay should be avoided to prevent re-oxidization).The coating should be approx. 1 mm thick and should cover the entire contact area.
14
iii.
Tighten the bolts after keeping the contact surfaces correctly in position.
While tightening, ensure a generous squeeze of the grease
from the joint.
If sufficient grease does not appear, disconnect and
apply additional grease and then tighten. iv.
Bolts & nuts which are supplied with spring washers shall be tightened initially with spanners and finally checked with torque wrench for the recommended values.
v.
Bolt tightness Torque values:
15
16
17
18
vi.
Tighten the bolts after keeping the contact surfaces correctly in position. While tightening, ensure a generous squeeze of the grease from the joint. If sufficient grease does not appear, disconnect and apply additional grease and then tighten.
vii.
Bolts & nuts which are supplied with spring washers shall be tightened initially with spanners and finally checked with torque wrench for the recommended values.
4.
SPECIFIC INSTRUCTIONS :-
1)
Proper tools and tackles shall be used to transporting materials.
2)
The required assemblies or components alone shall be taken to erection site at each stage of erection.
3)
The fragile item shall be handled carefully.
4)
The structures shall be properly tightened after alignment.
5)
The lifting slings shall be put properly to avoid any distortion and ensure temporary supports if necessary are ready before lif ting the busducts.
6)
Enclosure sections and rubber bellows shall be properly placed busbars shall be checked.
7)
Before making the joints the cleanness of jointing ends of busbars shall be checked.
8)
Application of contact grease is necessary for effective busbar surface contact at bolted connection location
9)
The bolts shall not be hammered but tightened fully to the required torque without over tightening.
10)
The clearances between phase and enclosures shall confirm to the design values throughout the busducts.
11)
Insulators shall be checked for any damage.
12)
No foreign materials or tools shall be left inside the enclosure.
13)
All inspection covers shall be properly tightened with gaskets inside and the rubber bellows shall be connected properly.
19
14)
The earthing of busducts and structures shall be done properly.
15)
If transformer or Generator connections are to be done later ensure that the enclosure ends are covered properly.
16)
Painting touch up if required shall be done for entire run of busducts for good physical appearance of the busduct ass embly.
*****
20
VIII - PRE COMMISIONING 1)
All pre-commissioning tests shall be conducted for busducts as per the field quality assurance.
2)
Power frequency withstand tests shall be made in the field at 75% of the values given below: Nominal Voltage in KV (RMS)
Power Frequency withstand(1 minute dry) in KV(RMS)
24 3)
55
All joints have to be made properly tightened with correct bolt and nuts. Ensure that no joints have been left without bolts.
4)
All bolts and nuts have to be properly tightened.
5)
There shall not be any bending / buckling of structure members.
6)
All the structures shall be properly earthed to the station ground bus.
7)
The temporary supports of busbars inside the enclosures if any shall be removed.
8)
The Porcelain insulators shall be verified for breakage, chipping etc.
9)
The interior of the enclosures, busbars, insulators shall be cleaned and free from dirt, oil, grease or any deposits and moisture.
10)
Ensure that no flexible laminations / Braids has come out protruding and sharp corner is left anywhere.
11)
Ensure all bolts and nuts at every flange joints and inspection covers are properly tightened.
12)
The gaskets shall be provided at every flange joints and the inspection covers.
13)
Proper earthing of busducts and support structures with station earthing system shall be done. *****
21
IX-POST COMMISIONING All precautions normally observed for High Tension Apparatus should be taken when inspecting Isolated Phase Busduct and associated equipments. Housing should never be opened unless the entire unit is shut down and the personnel working on the equipment assure themselves that the busduct is not liv e. The only reason for opening the bus housing is to clean the insulators, bushings and to check the space heaters and to ensure if any loose contact is there in wiring. The first time the unit is shut down, a set of inspection covers may be removed to determine the amount of dust collected. If this is appreciable, further inspection should be made and insulators cleaned. If the insulators are clean the interval
of inspection can be
lengthened. Normally, the inspection would have to be made more often than yearly intervals. However, the frequency of inspection should be based on local conditions. Much longer intervals could safely be expected unless local atmosphere has a very large amount of suspended dust. It is recommended that during the annual maintenance for the equipment’s like transformer etc. the busducts also should be checked for dust collection, insulation resistance values, tightness of all bolts and nuts and spring washers etc. It is desirable to change the busduct gaskets one in 5 years if they are found hard and brittle. The tightness of busbar joints should be checked during this period with the help of torque wrench. Sufficient amount of `Multiple-Purpose’ grease also should be applied at the joining surfaces. The flexibles u sed at Generator, Transformers terminals should also be checked for any abnormal temperature rise. As already stated, the frequency of inspection should be decided based on the amount of dust collection. Besides this, there is no need to have quarterly/half yearly maintenance checks. But it is preferable to inspect all joints and insulators at least once in a year. Since the busbars are enclosed, no failure is expected. Expected failure, which may occur, is at support insulators, either due to dust collection and condensation or due to minor cracks. In such events, the insulators must be cleaned and the busbars to be hipoted before commissioning. If insulators do not withstand the hi-pot, then replace them with new ones. If the busducts are inspected and maintained periodically there can be no chance of any failures.
22
SPECIFIC INSTRUCTIONS :1)
Proper tools and tackles shall be used for transporting materials.
2)
The required assemblies or components alone shall be taken to erection site at each stage of erection.
3)
The fragile item shall be handled carefully.
4)
The structures shall properly tightened after alignment.
5)
The lifting slings shall be put properly to avoid any distortion and ensure temporary supports if necessary are ready before lif ting the busducts.
6)
Enclosure sections and rubber bellows shall be properly placed and busbars checked.
7)
Before making the joints the cleanness of jointing ends of busbars shall be checked.
8)
Proper application of contact grease is necessary for busbar ends before jointing.
9)
The bolts shall not be hammered but tightened fully to the required torque without over tightening.
10)
The clearances between phase and enclosures shall confirm to the design values throughout the busducts.
11)
Insulators shall be checked for any damage.
12)
No foreign materials or tools shall be left inside the enclosure.
13)
All inspection covers shall be properly tightened with gaskets inside and the rubber bellows shall be connected properly.
14)
The earthing of busducts and structures shall be done properly.
15)
If transformer connections are to be done later ensure that the enclosure ends are covered properly.
16)
Painting touch up, if required shall be done for entire run of busducts for good physical appearance of the assembly. *****
23
AS BUILT/APPROVED DRAWING
24
MASTER DOCUMENTS / DRAWINGS LIST FOR 24 KV IPB FOR UNIT-1,2& 3 (LOT- 1 & 2) SL.NO.
Drawings/ DOCUMENT TITLE
APL DRG / DOC NO.
C&S DRG / DOC NO.
1
Technical data Sheet for 24KV IPB
TIR1-GBD-GBD-DE-J-001
C-1000-0310-11581
2
Design Calculation for 24 KV IPB
TIR1-GBD-GBD-DE-H-002
C-1000-0310-11582
3
General Arrangement Drawing for 24 KV, 25000A/15000A/2500A IPB.
TIR1-GBD-GBD-DE-B-003
C-1000-0310-11584
4
Busduct Layout for 24 KV IPB for Unit-1
TIR1-GBD-GBD-DE-D-004
C-1000-0310-11583
5
Busduct Layout for 24 KV IPB for Unit-2
TIR1-GBD-GBD-DE-D-004A
C-1000-0310-11583A
6
Busduct Layout for 24 KV IPB for Unit-3
TIR1-GBD-GBD-DE-D-004B
C-1000-0310-11583B
7
Detail drawing of s horting bridge for Gen. drying Operation for 24KV IPB
TIR1-GBD-GBD-DE-C-005
C-1000-0310-11585
8
Detail drawing of wall / floor frame assembly for 24 KV IPB
TIR1-GBD-GBD-DE-C-006
C-1000-0310-11586
9
Busduct connection at Generator Phase side for 24 KV 25000A IPB.
TIR1-GBD-GBD-DE-C-007
C-1000-0310-11587
10
Busduct connection at PTSP Cubicle end for 24 KV IPB.
TIR1-GBD-GBD-DE-C-008
C-1000-0310-11588
11
Busduct connection at Ext. Transformer Cubicle end for 24 KV IPB.
TIR1-GBD-GBD-DE-C-009
C-1000-0310-11588A
12
Busduct connection at Unit Transformer end for 24 KV 2500A IPB
TIR1-GBD-GBD-DE-C-010
C-1000-0310-11589
13
Busduct connection at Generator Transformer End for 24 KV 15000A IPB.
TIR1-GBD-GBD-DE-C-011
C-1000-0310-11590
14
General Arrangement ,Wiring diagram and P & I Diagram of Pressurization Cubicle for 24 KV IPB.
TIR1-GBD-GBD-DE-C-012
C-1000-0310-11591
15
General arrangement & Wiring Diagram of Hot Air Blower for 24KV IPB
TIR1-GBD-GBD-DE-C-013
C-1000-0310-11592
16
CT wiring Diagram for 24 KV IPB
TIR1-GBD-GBD-DE-F-014
C-1000-0310-11593
17
Foundation & Embedment plate Locaton details for 24KV IPB supporting. Unit-1
TIR1-GBD-GBD-DC-D-015
C-1000-0310-11594
17A
Foundation & Embedment plate Locaton details for 24KV IPB supporting. Unit-2
TIR1-GBD-GBD-DC-D-015A
C-1000-0310-11594A
17B
Foundation & Embedment plate Locaton details for 24KV IPB supporting. Unit-3
TIR1-GBD-GBD-DC-D-015B
C-1000-0310-11594B
18
Supporting structure arrangement for 24 KV IPB. UNIT-1
TIR1-GBD-GBD-DC-U-016
C-1000-0310-11595
18A
Supporting structure arrangement for 24 KV IPB. UNIT-2
TIR1-GBD-GBD-DC-U-016A
C-1000-0310-11595A
18B
Supporting structure arrangement for 24 KV IPB. UNIT-3
TIR1-GBD-GBD-DC-U-016B
C-1000-0310-11595B
19
Supporting structure Calculation for 24 KV IPB.
TIR1-GBD-GBD-DC-H-017
C-1000-0310-11596
20
Earthing Layout for 24KV IPB
TIR1-GBD-GBD-DE-F-018
C-1000-0310-11597
21
Erection Key diagram for 24 KV IPB for Unit-1
TIR1-GBD-GBD-DE-D-019
C-1000-0310-11598
22
Erection Key diagram for 24 KV IPB for Unit-2
TIR1-GBD-GBD-DE-D-019A
C-1000-0310-11598A
23
Erection Key diagram for 24 KV IPB for Unit-3
TIR1-GBD-GBD-DE-D-019B
C-1000-0310-11598B
24
Installation, Operation and maintenance manual for 24 KV IPB.
TIR1-GBD-GBD-DE-I-020
C-1000-0310-11599
25
Manufacturing Quality Plan for 24 KV IPB
TIR1-GBD-GBD-DE-X-021
C-1000-0310-11600
26
Field Quality Plan for 24 KV IPB
TIR1-GBD-GBD-DE-X-022
C-1000-0310-11601
27
WPS & PQR
TIR1-GBD-GBD-DE-X-023
C-1000-0310-11602
28
Painting procedure
TIR1-GBD-GBD-DE-X-024
C-1000-0310-11603
29
Test Reports of 24KV IPB
TIR1-GBD-GBD-DE-X-025
C-1000-0310-11604
30
List of Sub Vendors.
TIR1-GBD-GBD-DE-X-026
C-1000-0310-11605
31
List of Spare for IPBD
TIR1-GBD-GBD-DE-X-027
C-1000-0310-11606
