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.

964

what is the trip circuit supervision in an electrical meaning?

2057

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?

1871

can dp type level transmitter work in under vaccum condition

1953

im try to calculating seawater flow required for SW-FGD system. I need a guide, equation or method to do it, can some one help me! Thanks very much

1956

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

1660

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

3221

why do you consider yourself a suitable candidate for this position

7399

How We Calibrate the vaccum transmitter?

1935

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

1963

Looking for Bently Nevada surplus 3300/52-01-00-00 Reverse Rotation Monitor , 4 pieces.

3377

What is LB-SR.

2969

what is the meaning of SST300 V56A in SIEMENS turbine

4312

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

1704

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

2591