Introduction to Turbovisory Instruments

INTRODUCTION TO TURBOVISORY INSTRUMENTS

CROSS SECTION OF TURBINE

TURBOVISORY PARAMETERS

VIBRATIONS

- SHAFT VIBRATION / ECCENTRICITY - BEARING VIBRATION TURBINE EXPANSION

- OVERALL EXPANSION - DIFFERENTIAL EXPANSION - AXIAL SHIFT SPEED / OVERSPEED LOAD BEARING BABBIT METAL TEMPERATURES MS / HRH PRESSURE / TEMPERATURE TURBINE METAL TEMPERATURE VACUUM LUB OIL PRESSURE / TEMPERATURE HP / LP EXHAUST TEMPERATURE

VIBRATION MEASURING INSTRUMENTATION SHAFT VIBRATION / ECCENTRICITY

- PROXIMITY PROBE BEARING VIBRATION

- VELOCITY PICK UP

SHAFT & BEARING VIBRATION PICK UP

BEARING / SHAFT VIBRATION PICK UP MOUNTED ON BEARING NO. 4 PEDESTAL

PROXIMITY PROBE

RECOMMENDED LOCATIONS OF VIBRATION RECOMMENDED MEASUREMENTS MEASUREMEN TS FOR PEDESTAL BEARINGS (AS PER ISO)

RECOMMENDED LOCATIONS OF VIBRATION RECOMMENDED MEASUREMENTS MEASUREME NTS FOR HOUSING TYPE TYP E BEARINGS (AS PER ISO)

Measurin g Amplifier Proximity Pick-up

45O

L

45O

SHAFT

R

RECOMMENDED LOCATIONS OF SHAFT RECOMMENDED VIBRATION MEASUREMENTS AS PER ISO

Measurin g Amplifier Proximity Pick-up

L

SHAFT

R

RECOMMENDED LOCATIONS OF SHAFT RECOMMENDED VIBRATION MEASUREMENTS AS PER ISO

EXPANSION MEASURING INSTRUMENTS OVERALL EXPANSION

- POSITION TRANSMITTER  DIFFERENTIAL EXPANSION MEASUREMENT

- PROXIMITY PROBE AXIAL SHIFT MEASUREMENT

- PROXIMITY PROBE

OVERALL EXPANSION PICK UP

OVERALL EXPANSION MOUNTED ON BEARING NO. 1 PEDESTAL

DIFFERENTIAL EXPANSION (FOR SMALL EXPANSION) & AXIAL SHIFT PICK UP

DIFFERENTIAL EXPANSION (FOR SMALL EXPANSION) & AXIAL SHIFT PICK UP

IP DIFFERENTIAL EXPANSION PICK UP MOUNTED ON BEARING NO. 3 PEDESTAL

AXIAL SHIFT MEASUREMENT AT IP COLLAR 

DIFFERENTIAL EXPANSION (FOR LARGE EXPANSION) PICK UP

DIFFERENTIAL EXPANSION (FOR LARGE EXPANSION) PICK UP

LP DIFFERENTIAL EXPANSION PICK UP MOUNTED ON BEARING NO. 4 PEDESTAL

SHAFT POSITION MEASURING DEVICE

SHAFT POSITION MEASURING DEVICE

SPEED, LOAD MEASURING INSTRUMENTS SPEED / OVERSPEED

- KEY PHASOR  - HALL PROBE LOAD MEASUREMENT

- CURRENT TRANSFORMERS - POTENTIAL TRANSFORMERS

4 : HYDRAULIC SPEED TRANSDUCER  5 : ELECTRIC SPEED TRANSDUCER  TRANSDUCER 

SPEED MEASUREMENT INSTRUEMENT MOUNTED IN HP FRONT BEARING PEDESTAL

STARTING AND LOAD LIMITING DEVICE

PRIMARY OIL PRESSURE

HALL PROBE

HALL PROBE IN BEARING NO. 1 PEDESTAL

MAIN OIL PUMP

MAIN OIL PUMP COUPLED WITH HP ROTOR 

OVERSPEED TRIP BOLTS IN TURBINE ROTOR 

OVERSPEED TRIP BOLTS IN BEARING NO. 1 PEDESTAL

PRESSURE, TEMPERATURE, FLOW MEASURING INSTRUMENTS PRESSURE MEASUREMENT

- PRESSURE TRANSMITTER  VACUUM MEASUREMENT

- KENETOMETER  - MERCURY MANOMETER  TEMPERATURE MEASUREMENT

- TEMPERATURE TRANSMITTER, THERMOCOUPLE, RTD FLOW MEASUREMENT

- FLOW NOZZLES, ORIFICES

THERMOCOUPLE

BABBIT METAL TEMPERATURE MEASUREMENT IN JOURNAL BEARING

THERMOCOUPLE IN JOURNAL BEARING

THERMOCOUPLE

BABBIT METAL TEMPERATURE MEASUREMENT IN COMBINED JOURNAL & THRUST BEARING

THERMOCOUPLE

THRUST PAD ARRANGEMENT AND THERMOCOUPLE LOCATION IN COMBINED THRUST AND JOURNAL BEARING

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