Dears
I'm asking about what could happen to 11 KV motor winding if it stopped manually. But stil one pole of the circuit breaker stuck close for an hour?
Dears
we still have PLC Type [ ABB Procontic CS 31] and unfortunately don't have its software.
I need it now to configure new central unit to be backup
Best Regards
Dear Gents
I have one gas turbine MS5001P driving sync. Generator.
The control system is Speedtronic MK II.
During no load tests on gas fuel the turbine tripped several times after reaching FSNL (different durations) without any alarms..
What could be the reasons?
Dear Gents
I have a turbine (25MW) with Mark VIe control system(upgraded from Mark II at 2013).
- Recently only, I have a problem during stopping the turbine from FSNL.
- On FSNL, The FSR is about 20.8% and FSRSD is 100%.
-Directly after stop order, the FSRSD is switched to the current FSR...
We have a dual fuel frame 5 gas turbine driving a generator (25 Mw). The circuit breaker got tripped while the turbine was running on gas fuel causing site shutdown, then it transferred automatically to liquid mode due to fuel gas compressors trip after shutdown.
-The annunciator alarm was...
We intended to replace two old oil circuit breakers for our gas turbine generators (12 KV-2000 A),The breakers timing are as follow:
-Opening time: 50 ms.
-Arcing time: 15 ms.
-Total breaking time is 65 ms.
-closing time: 75 ms.
We got an offer with two new vacuum circuit breakers but...
-We have a frame 5 gas turbine with a mechanical only-accessory gear box driven hydraulic pump(90 bar).
-The turbine tripped 3 times(within 6 years) before due to the failure of the coupling of the pump.
-What is root cause of coupling failure and what are the recommendations of pump...