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DC Resistance windinding transformer testing

DC Resistance windinding transformer testing

DC Resistance windinding transformer testing

(OP)
Please explain me which IEC standard mention about max DC Resistance windinding value of oil transformer.
After my team test transformer .l was facing about
% difference resistance value between phase more than 3 % that could not accept from client.

RE: DC Resistance windinding transformer testing

Check IEC 60076-8, Power transformers – Application guide.

RE: DC Resistance windinding transformer testing

Cant see your differential %, can you repost?

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