krisys
Electrical
- May 12, 2007
- 458
I have an Emergency Diesel Generator (EDG) rated 640 kW rating. It has an alternator rated 800 kVA, 415 V. Using soft starter, we have started a motor of 260 kW rating. When attempting to start the motor EDG tripped with many alarms/indications. One of the indication is the diode failure. However, after that, the 260 kW motor was taken out of service and the EDG was taken into service to feed other emergency loads. For the last two years it is working without any problem, but with around 200 kW load.
In this regard I would like to know is there any method to identify/establish the diode failure. Or can we consider the alarms came during the 260 kW motor starting as false alarm?
These are the rotating diodes for the exciters.
In this regard I would like to know is there any method to identify/establish the diode failure. Or can we consider the alarms came during the 260 kW motor starting as false alarm?
These are the rotating diodes for the exciters.