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We operate a 10 Mw facility and we have been experiencing
several trips due to fluctuations on the MVAR? We have
checked all issues related to the AVR and we have found all
OK? Can anyone help us? The grid voltage, internal voltage,
all regular parameters look ok. MVAR fluctuate and there it
goes the unit? What could be happening? Thanks!
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Answer Posted / a.j.pailwan
Please check CT connections, CT Specifications and
saturation of particularly B phase as this CT feed back is
used in AVR during PF control mode while pareller with grid.
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