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I'm having a problem with the static type excitation system (11kV output) for our hydro power plant. The problem is when the excitation is "on" producing 11Kv output, the field current seems to go up as high as 300A although the unit (generator) is not yet loaded or synchronized to the grid.
Previously the main thyristor unit have been replaced after excitation failed to start up and was working okay up until now that this problem aroused.
I need some help.
Previously the main thyristor unit have been replaced after excitation failed to start up and was working okay up until now that this problem aroused.
I need some help.