Search results for query: *

thanks edison123 for your these recommendations "Mop up oil and wipe with lint free soft cloth. I don't recommend any cleaning liquids, solvents etc.", i prefer this but some oil inside the air gap and its hard to reach it. manufacture manual" Oil and grease are not harmful to insulation but...

thanks iceworm,yes this the one

Dear All experts, we have 10 MW 6600 volt synchronous generator, Lube oil was leaking inside the generator from DE bearing which cause a dirty winding as the attached photo. we make megger test (5 KVdc - 1 min )all readings was good and more than 2G ohm. I am wondering ,what is the effect of...

Thanks waroos and I mean ANSI code, is it allowed for ANSI code ?

My dears, I'm wondering if it is possible to use two different contacts with two different power sources (24 and 120 VDC) for the same relay ? I'm not sure that this situation is allowed by code.

Hello, I first want to say thank you in advance for those who help. I need your advise for the following problem Generator (10 MW and 6600 volt)coupled to gas turbine via gear box. we make re winding for the generator stator winding and after generator operation it have high vibration reading...

The rotor is salient pole type , 4pole.

Dears, If we have a 3phase synchronous generator, mechanically connected to gas turbine. and both the generator and the turbine are off, and by fault the circuit breaker become closed , is the the generator shaft will rotate?? Note : for normal operation after starting the turbine the generator...

Hello Experts: we have a 3 phase motor working at ambient temperature about 55 deg. Celsius (attached name plate data) what is the effect of the ambient temperature on the motor at the long term...

1. the rotor bearing supported on separate bearing pedestals. 2. the predominant frequency of vibration is 1X at 1500 RPM 3. The machine was found out of alignment after start the generator and stopping it for vibration checking. 4. we just correct the alignment and expected to make running...

hi friends we have a ground fault in the synchronous generator 10 MW so we transfer it to specialized work shop for Re-winding, and after rewinding the generator and make alignment for the generator with the gear box shaft and start the generator we noticed very high vibration in the generator...