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what type of relays used in transformers?
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In protection side transformer differential,ref,stand by
earth fault,o/c & e/f, transfomer trouble function relay
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How to calculate the External Resistance required for 60HP slipring motor in case no any data of the Motor is available???
PLZ EXPLAIN CORONA,SKIN,BIRD PALE,SPAN,SAG Effects of power cable.
Can any one give an explanation about rating factors of cable? if we are laying the cable on the air with an temp 15 degree then rating factors will be 1.15 and if we are laying the cable on the air an temp 60 degree then rating factor will be 0.76 please describe it and what is the difference between rating factor and derating factor?
why 1.7Uo for HV cable Hi pot test?IE standard why?
defult setting in p220 micom motor proction relay for 11kv,640kw,f.l.a.-40a,1440rpm ht motor?
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how to calculation increase capacitor,increase power factor for three phase.
Whether IP65 enclosure box blocks ventilation if driver for LED have to enclosed inside IP65 box
How to control motor gearbox speed and friquency? If length of cable and dia given, how to measure the voltage drop?
how to convert lv line to hv line and viseversa, any losses will occur during this process
I Need standard operation procedure(SOP)for 500kva Oil type transformer oil filtration & Procedure for IR value checking.
Proviiding the Dedicated N earth and individual Body Earths ,Finally these all looped /Now my Question :- will it not harm in case of Transformer Fault current flows in Dediacted N Earthing to Looped Body Earthing.
What are the characteristics of negative feedback?
Earth leakage relay basic knowledge principle
Explain the laying procedure and laying depth of submarine/subsea power cable for 220/400KV system? Also available cable diameter?
