What is ZCT? it operating principle and how is work with
RCCB (residual current circuit breaker)?
Answer Posted / kanupriya
ZCT is a neutral CT which is based on zero sequence current
detection. What happens during leakage, the current in the
phases are not the same & hence the in is not equal to
zero. This difference of current flows into the neutral CT
whicgh trips the RCCB
Is This Answer Correct ? | 49 Yes | 15 No |
Post New Answer View All Answers
why we use single core 630mm2 cable for transformer secondary side
how we do Vector group ,magnetic balance and tap changer test in Transformer?
is it possible for different brand of H.V transformers to run or operate in parallel to each other? if so how much disturbance can this affact the H.V bus bar?
what is the difference between STAR and DELTA connection and application wise how it can be utilizedd
what is deffrence between squirral cage and wound rotor in IM?
At what speed 1 HP motor can run an electric car of weighing 400 kg?
what is the preventive maintence for ht panels and busbars and vcb abd acb's.
what is ic 01,ic 06 ?is it types of cooling?
For electrical designers what are the standard should know? i want learn about this standards. how to get information/reference. anybody help in this regards please.
if a.c supply is given to the motor,, what happen?
I have 2 KW electric water heater.I am gonna use it in controlling water temp.so I needed to increase or decrease the heating capacity.is there any electrical-electronic circuit for varying the resistance & so current?
if main CT is of ratio 50/5, and meter CT is -/5 what will be overall multiplying factor of meter.PT is 11000/110 .
What are operating procudures & Safety precautions to be observed while operating OLTC in manual mode ?
1.why we are using metal oxide gapless block in lightning arrester,2.What is minimum and maximum rating of metal oxide blocks using in india
While testing LA mast,What are the parameter limits ?