Couldn't understand by our question ? Transformer oil filter machine required servicing after some thousand of liter (decided by OEM). Filter need to be replaced after 01 or 2 year of operation. Or else, metal particles might be mixed in oil and may be reason of fault in trafo
Yes madam. Will soon publish more video here. Thanks for the the love ! You all wait for my videos. This really motivate me that many persons are still there who want to increase their knowledge.
