What is the difference between earth fault and restricted
earth fault protection?

Answer Posted / m.gopinath

Earth fault protection is non-unit protection for earth
faults where as restricted earth fault protection is a unit
protection (ie differential protection of Y connected
alternator/transformer) for earth faults. So we can say the
Restricted earth fault protection is differential
protection of a y connected winding for earth faults only
but not for phase-to-phase faults.

Is This Answer Correct ?    7 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How many lightning arrestors to be installed on 50MX60MX10M building and is there any formular for that?

1475


Maintenance of transformer???

1812


size of condotory fron voltage level

1729


In PFI plant one stage capacitor connection is directly connected(with out megnetic contact controll). but why?

1893


substation+ plc system

1634






what is the difference between fault current ant short circuit current?

2263


What are the significant parts of dc generator?

646


i need previous entrence exam papers of nhpc.

2367


Explain advantages of storage batteries

655


I have a CT meter with ratio 60/5. The meter reading of previous month was 3290.49 and that of current month was 3797.26. How many chargeable units as per normal meter should be my reading.

986


How to select circuit breakers rating eg. if i select a circuit breakers of capacity 40 amps DC with operating voltage 28 volts and if i what to use same circuit breakers for 300 Volts DC application what is the current rating of this circuit breakers.

1325


why burdens of VTs is more than CTs?

1352


Define peak overshoot.

799


What are the different losses In a de mac1une'! t.xplam

2271


What are the limitations of Kirchoff's laws?

1128