what is a relay?

Answer Posted / ashokreddy r

relay is a sensing device.
when the fault occurs more current flows thro the relay coil
produces sufficient field to attract circuit breaker
contacts,so that ckt is opened

Is This Answer Correct ?    2 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the general power consumption rating of CPU CRT type and Flat type, Monitor,Printer, projector, Scanner?

1390


how we can find of current direction(supply comming/out going direction) when a transmission line passing through sides.

1915


what will be project cost for 100 kv transformer connection under oyt scheme.

2419


What is vaccum currcuit breaker.define with cause and where be use it device?

636


Why 9KV surge arrester having 7.65KV of MCOV?

1109






How much depth n width required for laying of 1X70 Sqmm Cable in Desert???

1216


as a electrical student why should i hire you?

1984


What will happen if i replace a inductive proximity switch with photo sensor in a machine?

1410


use of PIR in ehv breaker

1717


What is the current carrying capacity of 0SWG,3SWG,10 & 12 SWG solid bare overhead copper conductors?

2966


how to calculate slip ring induction motor stator and rotor currents??

1741


How to calculate main incomer rating of APFC Panel ? Let's say i want to find main incomer for 11kV, 1000kVAR Panel.

1233


The synchronous machine excitation system explain

1333


what is the ckt diagram of a tubelight and is it the simplest ckt of electrical engineering and also the component?

1851


what is meant by impulse voltage?

1552