What is critical speed of turbine

Answer Posted / damotharan

It is the speed at which the machine vibrates most violently. It is due to many causes, such as imbalance or harmonic vibrations set up by the entire machine. To minimize damage, the turbine should be hurried through the known critical speed as rapidly as possible. (Caution, be sure the vibration is caused by critical speed and not by some other trouble).

Is This Answer Correct ?    0 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is natural frequency of turbine shaft .

1720


What is difference between secondary Air & Tertiary Air and Their use.?

1474


our 125 kva DG does not start in AUTO mode works normally in MANUAL mode please give me a solution.....

1196


How do you consider that you can improve and what assistance do you need to achieve this

1332


how to differentiate between "ALL fuel lost" and "All Fuel Lost" in Boiler MFT condition?

1227






DCS marshaling Cabinet Power supply can be replace during plant running time? Answer Yes it is possible. I am talking about the controller and cards power supply modules. They are always redundant and connected through diode so that if one power supply fails the other can take the charge immediately.so it is possible to replace one of them in running plant if the other one is healthy. MY question is how switching done.

512


procedure of how to generate power in solar plant.

1376


why do you consider yourself a suitable candidate for this position

6976


operation

1371


We have Demin Closed cooling water system with expansion tank for cooling oil system. Expansion tank having N2 bladder. Whenever N2 bladder bursts out, Closed cooling water circuit pressure drops and make-up happening, eventhough there is no leaks. And how Circuit pressure drops?

1427


explain how the third harmonic content of the magnetising current affects transformer design

2770


What is LB-SR.

2483


How We Calibrate the vaccum transmitter?

1467


can u please tell me how to calculate the concrete quantity for a under reamed pile? r=300mm,depth=3m for a cylinder and for bulb l=.750mm,width=.525

1278


why airtel use + 24 volts and other operators use -48 volt

2106