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INTRODUCTION TOTURBOVISORY INSTRUMENTS

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CROSS SECTION OF TURBINE

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TURBOVISORY PARAMETERSVIBRATIONS

- SHAFT VIBRATION / ECCENTRICITY

- BEARING VIBRATIONTURBINE EXPANSION

- OVERALL EXPANSION

- DIFFERENTIAL EXPANSION

- AXIAL SHIFTSPEED / OVERSPEED

LOAD

BEARING BABBIT METAL TEMPERATURES

MS / HRH PRESSURE / TEMPERATURETURBINE METAL TEMPERATURE

VACUUM

LUB OIL PRESSURE / TEMPERATURE

HP / LP EXHAUST TEMPERATUREGLAND STEAM HEADER TEMPERATURE

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VIBRATION MEASURING

INSTRUMENTATION

SHAFT VIBRATION / ECCENTRICITY

- PROXIMITY PROBE

BEARING VIBRATION

- VELOCITY PICK UP

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SHAFT & BEARINGVIBRATION PICK UP

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BEARING / SHAFT VIBRATION PICK UP

MOUNTED ON BEARING NO. 4 PEDESTAL

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PROXIMITY PROBE

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RECOMMENDED LOCATIONS OF VIBRATIONMEASUREMENTS FOR PEDESTAL BEARINGS

(AS PER ISO)

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RECOMMENDED LOCATIONS OF VIBRATIONMEASUREMENTS FOR HOUSING TYPE BEARINGS

(AS PER ISO)

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Measuring

Amplifier

45O 45O

ProximityPick-up

L RSHAFT

RECOMMENDED LOCATIONS OF SHAFT

VIBRATION MEASUREMENTS AS PER ISO

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Measuring

Amplifier

ProximityPick-up

L RSHAFT

RECOMMENDED LOCATIONS OF SHAFT

VIBRATION MEASUREMENTS AS PER ISO

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EXPANSION MEASURING INSTRUMENTS

OVERALL EXPANSION- POSITION TRANSMITTER

DIFFERENTIAL EXPANSION MEASUREMENT

- PROXIMITY PROBE

AXIAL SHIFT MEASUREMENT

- PROXIMITY PROBE

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OVERALL EXPANSION PICK UP

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OVERALL EXPANSION MOUNTED

ON BEARING NO. 1 PEDESTAL

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DIFFERENTIAL EXPANSION (FOR SMALL

EXPANSION) & AXIAL SHIFT PICK UP

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DIFFERENTIAL EXPANSION (FOR SMALL

EXPANSION) & AXIAL SHIFT PICK UP

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IP DIFFERENTIAL EXPANSION PICK UP

MOUNTED ON BEARING NO. 3 PEDESTAL

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AXIAL SHIFT MEASUREMENT AT IP COLLAR

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DIFFERENTIAL EXPANSION (FOR LARGE

EXPANSION) PICK UP

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DIFFERENTIAL EXPANSION (FOR LARGE

EXPANSION) PICK UP

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LP DIFFERENTIAL EXPANSION PICK UP

MOUNTED ON BEARING NO. 4 PEDESTAL

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SHAFT POSITION MEASURING DEVICE

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SHAFT POSITION MEASURING DEVICE

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SPEED, LOAD MEASURING

INSTRUMENTS

SPEED / OVERSPEED- KEY PHASOR

- HALL PROBE

LOAD MEASUREMENT- CURRENT TRANSFORMERS

- POTENTIAL TRANSFORMERS

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SPEED MEASUREMENT INSTRUEMENT MOUNTED

IN HP FRONT BEARING PEDESTAL

4 : HYDRAULIC SPEED TRANSDUCER

5 : ELECTRIC SPEED TRANSDUCER

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STARTING AND LOAD

LIMITING DEVICE

PRIMARY OIL

PRESSURE

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HALL PROBE

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HALL PROBE IN BEARING NO. 1 PEDESTAL

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MAIN OIL PUMP

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MAIN OIL PUMP COUPLED WITH HP ROTOR

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OVERSPEED

TRIP BOLTS IN

TURBINE

ROTOR

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OVERSPEED TRIP BOLTS IN BEARING NO. 1 PEDESTAL

PRESSURE TEMPERATURE FLOW

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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

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BABBIT METAL TEMPERATURE

MEASUREMENT IN JOURNAL BEARING

THERMOCOUPLE

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THERMOCOUPLE

IN JOURNAL BEARING

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THERMOCOUPLE

BABBIT METAL TEMPERATURE MEASUREMENT

IN COMBINED JOURNAL & THRUST BEARING

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THRUST PAD ARRANGEMENT AND THERMOCOUPLE

LOCATION IN COMBINED THRUST AND JOURNAL BEARING

THERMOCOUPLE

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THANK YOU