what is the different between earth leakage relay and earth
fault relay?
Answers were Sorted based on User's Feedback
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
| Is This Answer Correct ? | 25 Yes | 5 No |
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.
| Is This Answer Correct ? | 6 Yes | 1 No |
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.
| Is This Answer Correct ? | 3 Yes | 3 No |
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.
| Is This Answer Correct ? | 8 Yes | 24 No |
what is the use of spherical metal balls attached on to the earth wire of transmission over head lines?
what is meant by excitation current & armature current ? where its produce & how we can calculate ?
What is a parabolic signal?
i am using auto transformer for starting of induction motor to provide reduse voltages...but the principle of a tansformer according to definition"which transform energy to on circuit to another circuit with constant power and constant frequency". so if i am using reduse voltage then current obsely hige because power is same.but we use auto transfarmer for starting of induction motor to give low current.but here according to definition we are giving hige current.
why the rotor current becomes in steady state during high slip region? please verify with equations.
how to calculate the size of cable tray
what are the reasons of CT circuit faulty in busbar protection scheme?
Explain how Hormonics will effect the Electrical System?
I want formula to calculate cable size as per load given in kw & amp.I searched many sites but didn't right answer.Plz reply me asap.
41 Answers Armco, BEL, BGS, Biocon, BRB Cable, Crystalline Chemical Industries, DLF, Doshion, Electrical, Gold Roof, L&T, Lanco, MEIL, Oman Cables Industry SAOG, PK Services, Polycab, Sabic, SLV, System Electrical, Tata Motors, UEM, UMIC, Vega, Vertex, Voltas,
what is meant by impedance & transient protection?
What about electrical Units. discrive in detail
dear friends, how to calculate "Gage" in copper wire , aluminum wire etc. have any formula?
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)