S
Dear Sir,
We have 3 Gas Turbine Units of 20 MW capacity each. GT - I ann GT - II have MARK - VI and MARK - VIe Control System.
There was some maintenance work going on in UPS (Uninterrupted Power Supply) and power to HMIs of both GT - I and GT - II; Power to MW transducer got switched off by mistake.
The power to MARK - VI and VIe control system was intact. The turbines was running normal. But Generator Breaker got tripped. As HMI was also powered off, we could not find out exact reason for Generator Breaker Trip.
As per the literature in GE manuals, the generator breaker WILL NOT trip on Reverse Power Trip Signal if the MW Transducer is in Faulty Condition.
Can anyone please explain, what must have caused Generator Breaker Trip?
Regards
Sadiya
We have 3 Gas Turbine Units of 20 MW capacity each. GT - I ann GT - II have MARK - VI and MARK - VIe Control System.
There was some maintenance work going on in UPS (Uninterrupted Power Supply) and power to HMIs of both GT - I and GT - II; Power to MW transducer got switched off by mistake.
The power to MARK - VI and VIe control system was intact. The turbines was running normal. But Generator Breaker got tripped. As HMI was also powered off, we could not find out exact reason for Generator Breaker Trip.
As per the literature in GE manuals, the generator breaker WILL NOT trip on Reverse Power Trip Signal if the MW Transducer is in Faulty Condition.
Can anyone please explain, what must have caused Generator Breaker Trip?
Regards
Sadiya