what is the breakdown voltage value in BDV test in
transformers?

Answers were Sorted based on User's Feedback



what is the breakdown voltage value in BDV test in transformers?..

Answer / sudhansu kumar dalei

The BDV of oil in transformer is 60 KV/1 min within the gap
of 2.5mm in the test vessel of oil test kit.

Is This Answer Correct ?    77 Yes 10 No

what is the breakdown voltage value in BDV test in transformers?..

Answer / rajesh kumar.k

As per IE rule it should withstand 40kv/min.

Is This Answer Correct ?    39 Yes 12 No

what is the breakdown voltage value in BDV test in transformers?..

Answer / yog111283

as per rule. after oil filteration oil sparking value must
be more than or at list 60 kv

Is This Answer Correct ?    30 Yes 12 No

what is the breakdown voltage value in BDV test in transformers?..

Answer / kishore

the minimum aceptable value of breakdown voltage in BDV
test is >30KV

Is This Answer Correct ?    15 Yes 6 No

what is the breakdown voltage value in BDV test in transformers?..

Answer / nitin arora

It depends on the voltage rating of the transformer
IF transformer rating is less than 72 KV then minimum BDV should be 30 KV.
IF transformer rating is 72 to 170 KV then minimum BDV should be 40 KV.
IF transformer rating is more than 170 KV then minimum BDV should be 50 KV.

All above results are referring the 2.5 MM gap during test.

Is This Answer Correct ?    6 Yes 0 No

what is the breakdown voltage value in BDV test in transformers?..

Answer / r.manimaran

For veryfication of oil purity every year to be checked the
BDV(breakdown voltage),we have take out the transformer
oil in the transformer and collect in the high voltage kit
inthe kit two stem will be there within the 2mm gap and
then apply the high voltage 50kv for 1 minute and it
shiould be withstand upto the mentioned time.Otherwise oil
to be filtered.

Is This Answer Correct ?    24 Yes 38 No

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