What is difference between earth leakage relay and
restricted earth fault relay ?
Answer Posted / dolphin
earth leakage relay sense leakage current using troide
around 5 wires (R,S,T,N,E) or earth wire only and give its
signal for protection relay which protect this power cable
feeder.
restricted earth fault make protection for predifined and
determined zone, always protect primary or secondary of
transformer or both of them through no. of 3 ct at power
lines and 1 ct at star point of transformer which connected
to earth so it protect winding of transformer and zone till
ct's.
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
if any house we instaled a 1.5 ton ac and its phase cable of wiring is installed but netrual cable of wiring not instaed. my question is that is neutual of house(for other wiring is capable for ac load or a sepeart neutrual wiring required
1.what is mean by 8/20 micro sec waveshape
Batteries used for electrical energy storage are a. Laclanche cells b. Edison cells c. Lead acid cells d.any of the above
describe the phenomena of vacuum interruption in C.B
which types of relay used in acb and vcb?
What is the purpose of using busbar mounting fuse?
Define steady state error.
Ceiling Fan and Storage type water heater. Discuss
What type of a DC motor would you use for a lift?
Does magnetomonopoles exists? one maxwell equation strongly suggests no, but how about their existance in plasma?
What is meant by derating factor?
Mention the methods for starting an induction motor?
what is basic difference betmeen normal & flame proof motor??
Circuit diagram of tube light without starter using electrical choke
difference between crane drive and line drive.