What is the function of restraining coil in differential
relay? as well as restraining current?

Answer Posted / madivalanagaraja@gmail.co

T the bias force produced due to the restraining coil greater than the operating force produced by the operating coil is relay is inoperative. When the internal fault occurs, the operating force becomes more than the bias force. Due to this, Beam moves and the trip contact sir closer to open a circuit breaker

Is This Answer Correct ?    2 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How to design inductive load for 3 phase 440v and maximum 5 amps for star or delta? Can we use a 15kW, 1450rpm motor for 15kW, 960rpm apllication?If yes.how......n.if thesame motor used what`s it`s sideeefect.

2039


how to compare with Relay settings for HT< panels, RMU panel, and PSS CSS transformer?? 1) Load amps, 2)Tripping time, 3) CT ratio, 4)Cable size 5) Transformer KVA rating 6) transformer full load amps

722


What is the difference between DOL starter and star delta starter

571


how to i get B licence,i am completed BE electircal and electronics engineering.i want to konw the proceduure to get b licence

1173


in a solar power plant,we are going to step up the voltage 350V to 33kv, and to 132kv GSS. i want to ask that if it is possible that 315v/33kv is not possible because we also use 315v/11kv. or it should be 415v/33kv? is it effects generation or losses?  the second question is-generation is depends on LV winding? or LV winding design for generation voltage?

1288






what are different types of electrical windings? i know the distributed winding ,concentrated winding etc but i want some detailed information, in what condition we will use distributed,concentrated windings what are the difference between them which is best, how induced emf changes by using different types of windings 20 hours ago - 1 week left to answer

1518


What is the Current equation in series RLC circuits.

614


WHY DO VOLTAGE TRANSFORMERS FAIL DURING EARTH FAULT IN THE DELTA CONNECTED 6.6KV ELECTRICAL SYSTEM

1540


Differentiate between induced emf and self inductance?

598


Why only sinusoidal ac voltages are generated?why not triangular or sawtooth?

1566


Why dry type cast resin transformers tap link blast in HV side while power shut down times on load?

1797


Explain the operation of grid connected central solar inverter ?

1027


how we select ac fuse rating of an power inverter???

1386


what is the effect of vector group while phase sequence of a generator changes,whether the vector group changes or not

1612


what is the current density of copper & alluminium.

1501