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EGYSHIMO • Jan 25, 2008

# what is relay??

what is relay??? ​
MaRo • Jan 25, 2008
Relay is a clip between two electric circuits, it has two sides one opened and one closed, when side one closed side two opened, its function is to make automatic ON/OFF switch according to the logic of the circuit.

Example:
Say there's a light bulb with timer and electric circuit controls it by setting certain time, like after one minute get the bulb ON, the timer counts one minute then closes the relay which connects power to the bulb.

Not very advanced answer, if you want to know more Relay - Wikipedia, the free encyclopedia
Mayhem • Jan 26, 2008
EGYSHIMO
what is relay??? ​
Well you can say that relays are the intelligent devices which are located in most power distribution systems. There are many kinds of relays available but we generally use numerical relays nowadays. You can say that while they relays are the brains the circuit breakers are the arms. The relays constantly moniter the current or voltage passing through the system by the means of a current transformer or voltage transformer , the moment the sense that the current has gone above a certain fixed value they send a trip signal to the circuit breakers.

Again not the most detailed of answers but told u as much as i know.. 😀
EGYSHIMO • Jan 27, 2008
MaRo
Relay is a clip between two electric circuits, it has two sides one opened and one closed, when side one closed side two opened, its function is to make automatic ON/OFF switch according to the logic of the circuit.

Example:
Say there's a light bulb with timer and electric circuit controls it by setting certain time, like after one minute get the bulb ON, the timer counts one minute then closes the relay which connects power to the bulb.

Not very advanced answer, if you want to know more Relay - Wikipedia, the free encyclopedia

thanks so much dear brother
EGYSHIMO • Jan 27, 2008
Mayhem
Well you can say that relays are the intelligent devices which are located in most power distribution systems. There are many kinds of relays available but we generally use numerical relays nowadays. You can say that while they relays are the brains the circuit breakers are the arms. The relays constantly moniter the current or voltage passing through the system by the means of a current transformer or voltage transformer , the moment the sense that the current has gone above a certain fixed value they send a trip signal to the circuit breakers.

Again not the most detailed of answers but told u as much as i know.. 😀
great.. thanks so much