Generator losing load

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Thread Starter

Hans-Petter

Started with that we ran 3 generators on the main swbd. suddenly, the bus-tie opens and one of the generators on the side that had 2 generators on load sharing took all the load. first thing that I did was to stop that generator and change the load sharing module, started the generator again, everything was ok then.

Then to day the same thing happened again, but this time on the other side of the bus-tie. This time I just disconnected it from the swbd, and connected it again, then it was back to normal.

Can it be that there are something wrong with the diodebridge? Or suddenly loss of magnetism?

Cause its strange that there suddenly is something wrong with 2 load sharing modules in 2 days.

The are running in isosynchronous mode (not sure if its written like that)

the generator is AVK type, load sharing module is Woodward.
 
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tariq masood

First you can not mention that the fault occur in one generator or the same other two. if this fault present in one generator, then check your excitation system which suddenly break down it. and due to this voltage break down the bus-tie will be open. if this kind of fault happened in other two, then check your load sharing module.
 
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