Generator Synchronizing issue
Generator Synchronizing issue
(OP)
We have a baseload gas turbine generator system. We have a Basler DECS-200 as a voltage regulator, Woodward SPM as an Auto-synchronizer, and Woodward Load Sharing Module. The utility voltage is rated at 13.8KV. As long as the utility voltage is dropping down to 13.4kv or more, the gas turbine generator had no problem synchronizing to Utility. But, when the utility voltage drops down to 13.2Kv, the generator couldn't synchronize to the utility bus. Please note that the Woodward auto synchronizer is a without matching voltage model. So, it only considers phase matching of generator and utility. Can somebody please give me some suggestions on how to solve this issue?





RE: Generator Synchronizing issue
Rafiq Bulsara
http://www.srengineersct.com
RE: Generator Synchronizing issue
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If we learn from our mistakes I'm getting a great education!
RE: Generator Synchronizing issue
My suggestion? - get a voltage matching unit
RE: Generator Synchronizing issue
RE: Generator Synchronizing issue
The Woodward SPM auto synchronizer part nunmber is 9907-028
I have talked to Woodward technical support, he said this model has without voltage matching, so it only looks for phases of generator and utility before it issues a breaker closing command.
So, you recommended to use the auto synchronizer with voltage matching circuit? Then I would like to know when do we use the model without voltage matching?
RE: Generator Synchronizing issue
It's not unusual to buy the synchronizer without voltage matching to save money, since the function is generally not needed. But it helps to have some idea of how a generator is synchronized to the grid.
David Castor
www.cvoes.com
RE: Generator Synchronizing issue
Mike L.