What is C.T, why it is used and what care should be taken
for that while connecting?
Answer Posted / ramesh
It is called as current transformer which is used to
transform higher range of current to lower range. It's
output is used as an input to protection circuit and
mearsuring instruments as the protection circuit and
measuring instruments are designed for lower range of
currents. The secondary of current transformer shall be
connected in such a way that it should be get open under
any circumstances. In case the secondary circuit opens,
then the CT gets blasted due to break down of insulation as
very high voltage gets induced in the secondary.
| Is This Answer Correct ? | 2 Yes | 3 No |
Post New Answer View All Answers
How to calibrate or test an LT Air Circuit breaker 440 volts, 35 KA, 800 Amps ?
describe the Operation of induction generators from bus bars
what is the use of vcb & isolator in substation?
I NEED RRB SYLABUS FOR JE ELECTRICAL ,PLEASE SEND TO MY E- MAIL ID joo28_eee@yahoo.co.in
ow can i get certificate of competency as electrical supervisor and my diploma in electrical engineering from jalgaon.
Define active and passive network?
how to determine Sq.mm size of finolex power cables.
RATING OF LIGHTENING ARRESTER FOR 11 KV LINE IS 9 KV is ok ,but haw to calculate the KA rating?
What is 100% protection of generator? Why 100% is not used but 95% is generally used?
State and define ohm’s law?
What is the meaning of dedicated earthing?
what is meant by motor startup supervision & motor load jam protection ?
In the formula : Knee point voltage = Burden X alf / class, Please inform what is alf? regards Shashidhar M.R.
Please explain, how to test vector group of tranformer(Delta y1) . Thank
What is inrush current? how can calculateit? what is the affect of it?