Answer / mm

the anti pumping device is used to avoid continously
energising the breaker closing coil once the CB has already
closed. this is done to avoid burning the coil

Answer / s.prakash

The anti-pumping relay allows the breaker to close only
once for each press of the 'close' pushbutton (or rotation
of the handle).

Answer / k.ramesh,vepl

This Coil is used to avoid the continuous supply of the
breaker coil during faulty condition,once we are giving the
closing pulse during uncleared faults condition the breaker
will close one time only. After we are giving many more
closing pulse to the breaker,cannot perform that closing
operation with the help of anti pumping coil.

Answer / suresh kumar

Anti pumping relay is used to prevent closing coil from
being burnt by the repeated closing command. Closing coil
is not designed for continuous electrical operation and
once the closing coil is energised, breaker will get on and
it will be remain energised mechanically until any trip
command is available. So continuous supply is not required
for closing coil.

Answer / sukhdev negi

the anti pumping device is used to avoid continously
energising the breaker closing coil once the CB has already
closed. this is done to avoid burning the coil

Answer / ahmed arafa _bapetco

Anti-pumping relay is used to avoid closing of the circuit
breaker when there is afaulty case , so the closing coil of
the circuit breaker can not be energised until the path is
healthy and the trip is not exist

Answer / lokesh thota

Pumping means if breaker is close & give close command (electrical or manual) to it,spring will discharge & charge again. To prevent this pumping anti pumping feature is required,which in turn will help to restrict unnecessary operations of breaker mechanisms.

Answer / nagesh.patwari

The function of Anti Pumping relay is to cut off the supply to CB closing coil in case of TNC switch spring failure and prevent CB hunting effect i.e. continuous closing, opening operation.

Answer / durgesh bisht

A device, which function to trip a circuit breaker, contactor or equipment or to permit immediate trip by other device or to prevent immediate re-closure of a circuit interrupter in case it should open automatically even through its closing circuit is maintained in closed condition.

How will I know that how many batteries I should connect to my UPS unit?

3 Answers  

what is main parts of alternator.

3 Answers   HP,

what is the diference between base speed and rated speed in motor

1 Answers   Bhel,

what is corona ?

3 Answers  

What is the effect if power factor is above 1 or unity.

15 Answers   NTS,

Can any one provide the inspection procedure of MIMIC for VFD panel? Details: If someone wants to have a mimic in the VFD panel what are inputs considered for the mimic(like on,off,trip) whether we are able to add speed variation in the mimic(if so how can we get) and what are the parameters to be checked in the MIMIC during inspection?

0 Answers  

what are the main Parts of VCB

1 Answers  

HOW MUCH MAXIMUM CURRENT TAKEN BY NEAUTRAL IN 125 KVA DG SET

1 Answers   KOC,

What is the difference between power cable and signal cable (only Observation Difference)?

1 Answers  

why nutral and earthing wire connect with each other in main panel board.

2 Answers  

how electronic energy meter works?

2 Answers  

For Electrical / and Electronic Systems, when we say efficiency is 80%, then what happens to other 20% from the Power consumption.? I.e. what happens to this?

1 Answers