what is relay
Answers were Sorted based on User's Feedback
Answer / sunil shelake
A relay is device that detects the fault and initiates the
operation of the circuit breaker to isolate the defective
element from the rest of the system.
Is This Answer Correct ? | 10 Yes | 2 No |
Answer / thowsif_emerson
A relay is an electrical switch that opens and closes under
the control of another electrical circuit. In the original
form, the switch is operated by an electromagnet to open or
close one or many sets of contacts. It was invented by
Joseph Henry in 1835.
Is This Answer Correct ? | 9 Yes | 3 No |
Answer / mantu
A relay is a sensing device which sense the fault on the
system and gives the trip signal to the circuit breaker.
Is This Answer Correct ? | 5 Yes | 2 No |
Answer / kabilan
relay is act as a switching device &coil energised at the
time contacts are open
Is This Answer Correct ? | 3 Yes | 2 No |
Answer / yuvaraj
Relay is only cut off the unit when flow of current more
than it's range set by electromagnetic contact.
Is This Answer Correct ? | 2 Yes | 1 No |
Answer / mohammed yousuf khan
A Relay is a device which senses the fault in the circuit and sends signal to the Circuit Breaker to break the circuit.
There is a difference between a relay and a circuit breaker, both are entirely different.
In a circuit, duty of Relay is to sense the fault whereas Circuit breaker should break the circuit upon receiving signal from the relay.
In a circuit, Relay as Master and Circuit Breaker as Slave.
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / ksnmurthy
relay is having normally close normally oepn contacts are
there so operation wise we can use relay by switching on
and off according to circuit
Is This Answer Correct ? | 0 Yes | 2 No |
what is the function of commutator in dc motor?
what is the profesional board for electrical engineer what is thepast and during construction for electrical engineering
what is the constructional difference in generator if we want to genearate 6.6kv instead of 440v?
when will be the iocl interview results i faced interview on 8th september 2008 iam from electrical branch i faced interview for the post of electrical engineer??????????????????????//
why choke is provided in the centre of the tube light?
what is synchronous speed.? if an induction motor is made to run at full load, then is this synch. speed too..?
explain working principle of earth leakage relay
0 Answers Divis Laboratories, SMIORE,
how to write program by ladder logic in case of PLC operation
Generally transformers has delta primary and star secondary. But in some transformer i saw Star primary and delta secondary. what is the reason for chosing like this?
Where we use 30mA , 100mA & 300mA RCCB ?
1. transformer design formula ? 2. how to calculate the primary turns and secondry turns ? 3. core types ? 4. how to find the primary current and secondry current ? 5. how to calculate the stacking factor ? 6. range of fulx density ?
2 Answers Automation, Indian Railways, Mogora Cosmic,
What is meant by Energy Efficient Transformers??? give significance