Answer / denzel101

it is a relay that checks for current balance between the
primary and the secondary side of a transformer.it is also
used in other components of the power system like to
protect cables.it is also known as a unit protection as it
does not discriminate with any other protection schemes.the
ct secondary currents that circulates in the coil of this
relay from primary and secondary of the transformer
cancells each other when the system is healthy.when the
fault occurs in a system the balance is disturbed and the
resultant current activate the relay and cause trip.

Answer / manikandan

actually differential relay function in transformer . this
relay monitoring the both side current(primary and seconday)
if current diffrent occure in transformer i t will be trip
the incoming breaker.

Answer / debajit ghosh

The differential relay calculate the current of primary
side and secondery side within the ratio.

Answer / charu manchanda

a differential relay is a protective element which finds the
fault or difference between the primary and secondary current.

Answer / krishnanraman

diff relay generally used for finding the difference in
primary and secondary circuit,the relay connect between the
primary and secondary circuit,normally the current flows
through the primary and through secondary thst time relay
is inoperative mode,when fault occurs the primary changes
as per secondary changed thus relay energise and trip the
circuit

Answer / karthick pdcs

The differential relay which using to check current flow direction.

Answer / durgesh bisht

The differential relay which funtion on failure of the
internal phase and earth fault winding insulation damege
ect.

Answer / gopi

1.buhoolez relay.
2.over current relay.
3.earth leakage relay
4. thermal relay

What are the transformer losses?

0 Answers  

Why corona leads to production of Ozone and glow of the color VOILET?

0 Answers  

IN CABLE TRENCH WHY FILL UP THE SAND. AND WHAT IS THE DIFFERENCE BETWEEN OVER HEAD AND UNDER GROUND LAYING THE CABLES

2 Answers   Cable Wireless,

how calculated Transformer losses.

0 Answers  

How to increase the specific gravity of DG batteries?

5 Answers   SCS,

what is the advantage and disadvantage of billing in kwh and kvah by electricity board .

6 Answers   Nespak, NTPC,

How to reduce the static electricity producing in solvent room? By P.D.Patil BioCon

0 Answers   Biocon,

In our factory so many iron pillors are exists for supporting the shed/Hangar. If do more no of earthings at one piller instead of doing more earth pits in many locations and running earth strip around the hanger, I can save the money. Please suggest this method is acceptable as per Is specifications though the Earth resitance of the farthest piller is with in the limits as per IS specifications.

0 Answers   HAL,

In ac circuit R,L,C are connected in series what is the output the circuit? explain

4 Answers  

Following test should be conducted to find out relative polarity of transformenr terminals A no load test B back to back test C phasing out test D none of above

0 Answers  

How a ship getting grounded

2 Answers   Deltin Jaqk,

How to protect the water pump by no load running.

9 Answers   Cushman Wakefield,