Is it mandatory statutory requirement of transformer oil
filtration annualy despite oil is withstanding required
dieelectrical strenth and all others parameters
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Answer Posted / pundlik wanwe
Transformer properties are governed by the 2 Indian
Standards.1) IS 335 & 2)IS :1866
IS 335 is for new oil
IS 1866 is for oil in service
For the transformer in service as long as oil in
transformer is ok as per IS 1866 there is no requirment as
such for filteration of oil, but you have to follow the
manufactuer's instructions regarding this
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