what is need of air gap in expansion section in busbar?
Answer Posted / sudhakar g
According to Book i studied in Tamilnadu rules for
Electrical contractors it should be 315mm of airgap in
busbar
Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
how does a liquid starter reduce the starting currents?
I have one ct of ratio 3000-2000/1 Amp its knee point voltage mentioned on name plate is 500-333/30mA-50mA at Vk/2. in secondary box there is three terminal named 1S1, 1S2, 1S3 then on which terminal obtained the knee point voltage ie 1S1-1S2 OR 1S1-1S3 & also specify the knee point voltage for the ratio 3000 from name plate.
What is phase cross over frequency?
what is the function of anti pumping relays? what is KVAR? How it is generated in alternator? What is 3rd Harmonics? What is IDMT relay?
A 11KV, 1200 A breaker combination fixed in a cubicle for HT motor.Is normally for 11 KV motor fuse is using? if Yes, What range fuse is required?
i want to know how to determine that a surge arrester work properly in 11kv system. and how to test a 12kv surge arrester
why are u join ntpc
wat is the current produced in a 5000v megger? when the positive and negetive terminals are touched on our body get s shock?
According to conduit size which size wiring & how many wires can we provide wires in conduit & how can we select conduit size accordingly?
When and where resistance earthing is used ? How to calculate the time constant for earth fault
In a single how much maximum current and watts using
In what cases (circumstances)we should apply P controller, PD controller, PI controller & PID controller ?
What is online and offline ups? how does it works?
why we need to us lenz's law for synchornous motor
what is the formula for hv test for cable and circuit breaker..????