I am getting differential earth fault in my transformer
realy , i have checked all its CT & control wiring but do
not get fault, Please help
Answer Posted / k.prakashchandra
I think it is REFR which picks up only if there is earth
fault whithin the transformer .i.e. between LT an HT
CTs.and an NCT is to be provided
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
what are the advantages and disadvantages of speed control of 3 phase induction motor by varying frequency explain with drawing
what is meant by twilight switches 7 where its applicable ?
im working in one private compeny in gujarat. i was complet diploma electric in 2010 from gujarat technical board. now i want electric supervisor licence in gujarat but i dont't know when i apply? plz give me address of the licence dippartment office in gujarat. gandhinagar
whatis the commertial spec. of distribution boards ?
What is the difference between Encoder and Resolver?
is it necessary to earth the rmu before cutting off the transformer winding?if yes why?
why T/F winding temp measurement cts are odd secondary current ie,109A/1.2A/1.4A?
What is mean by hot and cold loop testing? What is the difference between them?
kindly send me 11KV MV motor differential protection procedure by primary injection method.
132/6.6ππ πππππππππππ πππππππ πππ πππ πππππ πππ πππππππππ. πΈ'ππ πππππππ πππππππππππ ππ 6.6ππ/415π πππ πΈ πππππππ πππππππ ππ ππππ πππππ πππ ππ ππ 13/6.ππ πππππππππππ?? πΈπ π½π.. ππππ π ππ’??
how to introduce yourself
how to measure earth resistance of a substation
Why saturation region slowly shifted in the left side?
For RCD (Residual current device) Icu is defined. How i can find Ics for them?
what are the analog quality input for protection function?what are minimum reqiments?