what is the different between earth leakage relay and earth
fault relay?
Answer Posted / muhammad umair
Both Take their sensing from a ring core CT. In earth
leakage relay sensing is high i.e in mA.Where as earth fault
relay is used on higher loads where sensing is low i.e in A.
This is why earth leakage is used for the house hold devices
or power supply sockets protection. And Earth fault relay is
use for Industrial loads,motors normally more than 37KW (Not
a standard),distribution,generation etc.
Is This Answer Correct ? | 3 Yes | 3 No |
Post New Answer View All Answers
low frequency protection why recomend?
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?
condition Autotrip facia come on control panel of electrical transmission line?
prove that power consumed in 3 phase delta system is 3 times as compared to 3 phase star system
hi frnds what is meant by harmonics & what is meant by third hormonics,where its will occur ?thank u
we have 3.5MVA-11/6KV transformer. how can we calculate earth fault current and NGR calculation?
in the case of 6.6kv motor starter combination contain fuses on it VCB. but in 11KV motor starter combination Fuses are not using in it's VCB why?
What is the important precuations need tocarried out while working with Electrolite in Battery PM?
Why squirrel cage motor can only use with low starting loads ?
Haw to check conductivity of budbar
what is the difference between STAR and DELTA connection and application wise how it can be utilizedd
If we have 11 kv RYB Phase single core cable near about. Then wht effect and losses
what is the Connected Load (kW) or Contract Demand (kVA)of mahindra nasik plant??
What is meant by load angle of an alternator? Upon what factors does the load angle depend?
How many double suspension hardware fittings are required on a double circuit transmission tower?