Answer / amsal

we use RTDs to measure the bearing temp of turbine because maximum temperature of turbine bearing reaches 120 C. and RTDs are better to measure that low range of temperature than a thermocouple. not due to vibration. But in GT V94.2 siemens we are using T/Cs instead of RTDs and its bearing temperature protection is 120C.

Answer / baljeet singh

We will used rtd for the measurment of turbine tempreture because of vibration caused during running of turbine ,due to this mill volt will fluctuate but resistance remain constant.

How a rtd work, and what volts/current goes to a RTD to measure the resistence?

1 Answers   DVC,

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what is the meaning of HART ?

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when an eddy current probe is installed inside of a turbine or compressor in case of probe problem same as:crash of head of probe,changing the scale factor because of low measuring gap(physical gap is ok(example=1.14mm)but voltage is reduced(example=-6 volts),is any way to check the probe,when the ohm of probe is ok.thank you,(Karim Tavakoli)

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can you suggest good traning institute in instrumentation ? (in automation, or designing)

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what is difference between HOT permit and cold permit

0 Answers   Petro Rabigh,

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