how does relay works?
Answers were Sorted based on User's Feedback
Answer / sanjay n
Relay is a electromechanical switch which requires AC/DC
supply to operate it.By giving the reqired supply the coil
get magnetised and it makes or breaks the contact.
Is This Answer Correct ? | 1 Yes | 1 No |
Answer / ravindra reddy
Relay will operate when is there any fault occurs on ckt the
fault information will send to circuit breaker and trip
it.so finally the circuit will protected.
Is This Answer Correct ? | 0 Yes | 1 No |
Answer / lrankin
A relay is an electro-mechanical device which is used as
switch. The control side has a coil which when energized
(with the rated current) will produce a magnetic field
which will attract an electronic arm to a contact which
will then allow the relay to turn on a device such as a
lamp.
An AC relay works the same way with one difference.
Another coil is used along with the normal coil used in a
relay to supply some opposition when the coil is seeing the
voltage go negative. Since it holds it's magnetic charge
long enough to oppose the turn off of the main coil, the
relay will stay engaged and not chatter.
Queensborough Community College All The Way!!!
Is This Answer Correct ? | 0 Yes | 1 No |
Answer / j.santoshramanakumar
sorry still studied about switchgears so i thought it is a
switch
Is This Answer Correct ? | 2 Yes | 5 No |
Answer / j.santosh ramana kumar
relays are the switches like dpst,dpdt etc
Is This Answer Correct ? | 4 Yes | 9 No |
What is tranformer differtial?
why neutral and earth should not be connected on 3 phase 440v/50c/s supply at consumer side. where as on 25kv/ac/50c/s railway traction substation neutral and earth will be connected and track at substation. and track will act as neutral and earth. Reasons for this is needed urgently
difference between ac and dc generators
What is the meaning of CT 400-200/1-1 A ?
Swg formulae
what r the earthing required for commissioning of D.G set?
how to calculate the capacitor rating for improving power factor
10 Answers L&T, Property Solutions, Synergy, TAFE,
HOW MANY EARTHINGS REQUIRED FOR GENERATER
c++ write a program to use a fuction call "max"which accepts an intger arrey of size5.as an arrument and return the larger and smallest of the arrey to main without changing. the original changing of the original position of the element of the arrey.
why phase to phase voltage is 400v while phase to neutral is 220v?
DIFFERENCE BETWEEN GROUND AND NEUTRAL?
What are the causes of having an rmu explode after installation? And how do u treat the bushings of an rmu?