with out name plate details , how to find the metering ct
and protection ct.?pls brif explaination about that.
Answer Posted / prasad asolkar
if we have both metering and protection ct at same place and if they are applicable for a single application then the thicker sized ct is protection ct and the thinner sized ct is metering ct.
for eg.
rated current of dg is 1000A
then, metering ct will be 1000/5A & protection ct will be 500/5A.
so for smaller rated ct requires more no of turns at primary therefore the 500/5A ct have thicker winding & 1000/5A ct will have thinner winding.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
what is smart grid? why we use it? explain in detals bcoz i want give presentatin from it....
what is the problem when i want to close a circuit breaker by local position it closes well.but when i close it in remote position it trips
What willbe change in programming when we use 5/3 solenoid inplace of 5/2 in operating of a cylinder?
what is the transiant condition in alternator? and how it can be prevanted?
how indusrial diesel generator work
How seriving & testing of the HT & LT breakers are done. What are the standard Ir values on which we can come to know the test is passed or failed?
what is transient voltage?
What is Percentage impedence of a transformer? why it is expressed at a percentage? what is the importance of percentage impedence in case of a transformer?
thyristor controlled APFC panel design parameter?
what is the main difference between power devices and signal devices
how a resistor resists to flow the current?how an inductor oppses the sudden change in current?how a capacitor opposes a DC voltage.
what is difference between 9kv 5ka surge arrester and 9kv 10ka surge arrester.
Single line digram for 11 kV to distribution use go,la and do
take 100kva DTR( delta/wye ), what ll happen if we connect 11kv to LT side instead of connecting to HT side? will the DTR behave as a step up transformer or something else????
how to carry out Magnetizing Current Test on Distribution transformer and what purpose we are doing this test. why transformer rating in always in KVA ? what ispositive, negative, zero sequence impedence? How ElCB tripping if Neutral touch with ground Why AC & DC capacitor are use in UPS ? why motor rating in KW? how to syncronize two dg sets