Answer / karthic

relays are the device that give signal to the circuit
breaker during fault condition protecting the system from
further damage.

Answer / manjifera

its a device which control/protects the high voltage
equipments using low voltage which is safe for human.

Answer / motilal sahu

RELAY IS FAULT SENSING DEVICE.AFTER SENSING THE FAULT IT
SEND INFORMATION TO CIRCUIT BREAKER

Answer / kannan

Relay is the combination of NO & NC contact which will be
changed during energizaztion.

Answer / nagaraju .n

it is opperating & controllig divice depending on users

Answer / anindya chitta bagchi

relay is an electromechanical/electronic device,that picks up
when certain conditions are met,and then makes normally closed
contacts open,and normally open contacts closed.

Answer / ecstatic

Relay is a device used in protection system which senses
any abnormal condition in an electrical circuit and
triggers the trip coil \../
it can also be defined as an electromagnetic switch used to
control high voltage through low voltage ..

Answer / sush

Relay is like switch having Normaly open, Normaly close &
combination of both.In relay tere is electro magnetic coil
which is energized when supply is given and atract the
armature to make the contact.

Answer / hemant

relay is an sensing device. it senses the fault condition & energises the CB coil.

Answer / gunnam santosh

basically relays are coils designed for certain current
rating if current flowing through it increases this rating
it gets energised and operates the centrifugal switch placed
in it and opens the switch.

what is difference between neutral& grounding?

6 Answers  

Kindly give the brief explanations for checking 12.5 kvar 440V, 25 KVAR 440V, 12.5KVAR 690V, 25 KVAR 690V capacitors microfarad values. what is the microfarad values for the above four type of capacitors, and give the formula explanations briefly. I know F-50HZ, voltage, and capacitor.

1 Answers  

why genarator genarating voltage 11 KV?

0 Answers  

why the carbon brushes are broken in srim while the motor runningtime

0 Answers  

What is the difference between Ceiling Fan armature and Tablefan Armature or winding.

5 Answers   Pricol,

WHAT IS IEC? & WHAT IS BENEFIT TO PRODUCT FROM IEC?

0 Answers   BMC,

how to use single phase supply for a three phase equipement.

12 Answers  

PLEASE EXPLANE WHAT IS " MOSFET AC CONVERTER"? WHERE AND HOW IT IS USED?

2 Answers  

if transformer core is made of copper instead of steel which losses will increase..please explain

5 Answers   Bhel,

why onlyseries motors are used as universal motors? why not shunt?

4 Answers   TCS,

a power supply to be constructed from voltage cells is required to provide Max. 20A Current with a terminal voltage of 6v.Several voltage cells are available each of which has terminal voltage of 1.5V & each of which can supply a max current of 5A .the no of cells required will be ??

5 Answers  

What will happen if the 50HZ Transformer is connected with 60HZ power Supply

2 Answers