Answer / pvl

This depends on the design of the turbine. I worked with turbine with 4 critical speed bands. It is the natural harmonic frequency where there is maximum vibrations in the turbine. These speed bands can be more than one. Length, weight and steam entry type are the factors which decide the critical speed bands in a turbine.

In Safe Guarding test what means by "Failed to Danger" ?

0 Answers   Optimal,

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how to work MIL contol valve posistioner ?

0 Answers   ABB,

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1)how we calculate the drum level? and how we select the transmitter range?

3 Answers  

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9 Answers  

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0 Answers  

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0 Answers  

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7 Answers   Schenck,

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what is difference between RTD and Thermocouple?

2 Answers  

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how the transmitter send MA?

1 Answers  

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1 Answers   EIT,

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