What is difference between earth leakage relay and
restricted earth fault relay ?
Answer Posted / biju poulose
An earth leakage relay will sense and trip the circuit for
any earth leakage fault that may occur any where in the
system. The C.T provided at the neutral bus is used for
sensing this fault.
A restricted earth fault relay will operate only for earth
leakage that occur in a zone which is determined by a group
of C.T's connected antiparallel to the neutral C.T.
| Is This Answer Correct ? | 76 Yes | 12 No |
Post New Answer View All Answers
Mention how NPN and PNP transistor works?
Is there any standard guidelines/Criteria to design NGR/NGT.?
How does the phase sequence controller works, how it identifies the phases? confirm working principle
What is dielectric loss?
In constant power region of 3-phase IM torque-speed characteristics, if frequency increases slip A does not alter B decreases C increases D none of above
what are the types of electromagnetic forces developed in practical transformer?
Why 1/3 is used in symmetrical components?
what is the setting of locked rotor in HT motor ? (answer expecting in percentage)
Describe the test procedure to determine the vector group
Keywords: Die, Card, Coin, B/N 2 To 12
Is it possible to measure the voltage of a battery from a single terminal?
WHAT IS START TO INDUCTION MOTER IN STAR TO DELTA OF >5HP ?
why we take movement of rotor always in counter-clockwise direction in 3-phase induction motors?
What are the two segments of nyquist contour.
can someone explain that how the speed of the protection system affects the fault level calculation?