what is the use of spst switch in performing experiment on self excited dc motor?
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Is there any decided or standard frequency to check the meager testing of transformer, DG set, LT Panel in the industries in a year. I means how many times we should be check the same.
what is the difference between multimeter and megger?
IF HT CAPACITOR IN ON POSITION IS THERE ANY LOSSES I.S I SQURE OCCURS IN THE SYSTEM
We have 750KVA DG set, we want to introduce REF relay with 1250/1A,CL PS,Current transformers.The lead distance of 2.5mm copper flexible cable from CT to relay is around 5mtrs.We would like to know the knee point votage(VK) & IM calculion for CT's
HOW DOES ONE SELECT A TRANSFORMER PHASOR GROUP IE, WHETHER A STAR-DELTA TR OR A STAR-STAR OR A DELTA-DELTA, ETC. TRANSFORMER IS MORE SUITABLE FOR A PARTICULAR KIND OF LOAD OR WORKING CONDITION???
how to calculate restraing current and operating current for differential protection if 20 mva transformer is OLTC 33 kv/11 kv ? and what should be the type and ratio of CT?
what is cogging and crawling
20 Answers ABB, Ashok Leyland, Bharat Bijlee, BMRCL, MN Dastur, Siemens,
how does grading rings & spacers in transmission line works? Working Principle?
How to calculate MCB Breaking capacity.
difference between isolater and circuit breaker?
why the field winding of synchronous machine is excited by dc source
how can check the resistance of battery contact?
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