Answer / swapnil

earth leakage relay : monitirs the leakage current
continously and ir connected in earthign wirr
Earth fault relay oprates on earth fault. It detects earth
fault whenever there is short in between phase and earth

Answer / ugrasen

earth leakage relay monitoring the leakage current in mA
Earth fault relay operat on earth fault. It detects earth
fault whenever there is short in between phase and earth.

Answer / 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.

Answer / virupakshayya

use full

Answer / meghraj kabdule

earth leakage relay used in DC battery charger to monitor
DC leakage. And earth fault relay is used for lines &
transformer backup protection.

use of choke in APFC panels

2 Answers   Kemrock,

ohm's law is applicable to DC/AC/Both??

6 Answers   KPIT,

WHY WE CAN GENERATE POWER IN 3PHASE MODE ONLY NOT IN 4 OR 5PHASE

18 Answers  

What are the internal and external faults?

0 Answers  

How to decide the input and output circuit breaker for a 1600kva transformer.Is there any calculation is involved.

5 Answers  

What is star-delta transformer?

0 Answers  

What is mean by hormonics?

5 Answers  

For a 50MVA (138/69/13.8 KV) transformer, what would be the maximum demand in order not to exceed 80% of its operating capacity.

2 Answers  

What is the difference between an ELCB and a RCD?

2 Answers   Schneider,

we use 3 phase supply for induction motor why not use two phase supply .

4 Answers   TLC,

how dc load convert to ac load

3 Answers   Sunpower Solutions,

what is servo motor & how does it work.

0 Answers