an off load but energized 11/0.4 KV, 1250 KVA T/F has a power factor of 0.65(ca

an off load but energized 11/0.4 KV, 1250 KVA T/F has a
power factor of 0.65(capacitive)..!! why is it so, though
T/F being an inductive device ??

Question Posted / ahmad yousuf

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an off load but energized 11/0.4 KV, 1250 KVA T/F has a power factor of 0.65(capacitive)..!! why is..

Answer / ahmad yousuf

need answers from T/F specialists..!!

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an off load but energized 11/0.4 KV, 1250 KVA T/F has a power factor of 0.65(capacitive)..!! why is..

Answer / anand yadav

The transformer is connected to a capacitor bank or the PF
meter connections are wrong.It is not possible for a
inductive load to show leading PF.

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an off load but energized 11/0.4 KV, 1250 KVA T/F has a power factor of 0.65(capacitive)..!! why is..

Answer / rajesh verma

Dear
It is not possible. As the transformer is a inductive
device it can only lead to Lagging PF although it is idle
but there was definitely Lag PF the one possibility is that
the transformer is feeding to capacitor panel and because
it is off load so the resulting PF is Leading second thing
can happened that PF relay not working in auto made and
somebody has connected direct capacitor without calculating
the required KVAR to maintain transformer off load PF

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an off load but energized 11/0.4 KV, 1250 KVA T/F has a power factor of 0.65(capacitive)..!! why is..

Answer / doss

if its a new transformer please check the test report done by site acceptence tan delta test .its should be the capacitance high ,and dessipation factor also need to check ...

if the result is high means need to check the winding...if the tan@ reading is less than 0.05 the transformer is good condition..so check external..

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