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what is alternater?
hi this is hema, r there any books in particular for the preparation of the APPSC-A.E.E(electrical), if so please mail me the names ... thank u .
what is rating providing of contactor,relay,fuse unit for motor output power
what will happen if any motor runs long time with star connection in400vA.C. system
what is the formula for calculating of dielectric strength of transformer oil.
why we store only dc in batteries ?
how much current we can get from 11kv overhead line ?
sir can you operated Transformer on frequency from that for which is design?
we r having 3 core 3 1/2, 4 core cables how we can know this cable has to be used for this purpose?
I have connected 04nos. earthings to a transformer through 04nos. earthing pits seperately. 02nos. earthings are connected to T/F body, and 02nos. earthings are connected to T/F neutral.T/F capacity is 2000KVA, 11KV/415V. But after completing of 02 years successful operation ,we are facing following problems- 1. CT/PT occured blast one time 2. HT cable box occured blast two times 3. One body earthing strip and one neutral earthing strip of transformer are overlapping at some places. Whenever these two strips are pressed at overlapped points, they made spark. What is the reason of spark? Please explain the reason & rectification of above problems
when a hand crancked meggar is used to check most three phase induction motors, how many tests r rquired? Why?
What is the diffrece between ACB & MCCB