We have 2 no. 4MW DG set. and GEB supply.
But, we running, only 1 DG set. when we done APFC/Power
factor setting : 0.90, then winding temp. Low. but when
setting done : 0.83, then Winding temp. increase.
WHY Why ? ? ?, plz give me answer.
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Answer Posted / gurucharan singh
this is clear that at lower pf settings, its the DG which
compensate for the KVAR. which results in the high winding
temperature. For this check the plant loads connected. And
KVAR supplied by EB & DG. Also during parallel with grid DG
generally act as KVAR compensator along with KW supplied.
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