Answer / kandula bharadwaj

For transmission of electrical power from one substation to another substation relay can be used

Answer / milan

A relay is a protective device which senses the fault
current or voltage and operates the circuit breaker to
isolate the equipment from the system.

Answer / bikash chandra pal

It is a device which generate & send some desired output
signal on receipt of desired input signal & comparision of
the same with some preset value/Data, based on it's inbuilt
logic.

Answer / gopal

A RELAY IS A PROTECTION DEVICE , WHICH PROTECT THE WHOLE
SYSTEM TO A FAULT . IT WORKS LIKE A AUTOMATIC SENSOR , WHEN
ANY FAULT OCCURS IN SYSTEM IT SIGNALS TO VCB AND ISOLATE
THE FAULT.

Answer / saravanakumar

relay is a protecting device. it will measure the fault
current present the circuit, and then operate the circuit
breaker contacts to remove the faulty portion from the
circuit

Answer / g.balaji

Relay is a sensing device which senses a particular circuit
condition(eg:DC/AC Voltage & Current) and changes the
status of its contacts(eg:NO to NC,NC to NO)by which it
operates the auxiliary devices connected to the contacts.

Answer / suresh

A relay is a sensing device which actuates on fault current.

Answer / fayaz

relay is the switch it was re laying the eletricakl
circuit ofter every operation for next operation

Answer / ankaraju.k

It is actuating device for the circuitbreaker

Answer / ss

relay is switch

Sir, why generating power plant operating at above 0.9 lag? detail explaination?

1 Answers   Kirloskar, L&T,

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1 Answers  

Why the ceiling fan has three blades, why not two,four or five?

4 Answers  

what is FET

1 Answers  

If two induction motors A and B are identical except that the air-gap motor 'A' is 50 % greater than that of motor 'B', then

2 Answers   Lanco,

What is chopper

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2 Answers   ABB, Electrical,

Grid fault level [KA]?

0 Answers  

why the efficiency of generator is more than the motor in case of swinburne's test????

1 Answers  

For what purpose and why ACBs are used

4 Answers  

where we use stardelta starter and dol starter

4 Answers   HCL,

what will happen if dc machine are supplied by ac source??

2 Answers