what is the function of anti-pumping in circuit breaker?

Answer Posted / chirag

when breaker is close at one time by close push button,the
anti pumping contactor prevent re close the breaker by
close push button after if it already close.

Is This Answer Correct ?    75 Yes 23 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Define delay time.

656


While testing LA mast,What are the parameter limits ?

1452


Whata are the types of Cables?

1593


How could I get a certificate of competency as Electrical Supervisor? I have completed By BTech in Electrical this year(2012) for VJTI Mumbai Maharashtra. Is it compulsory to be produced while joining?

3006


how to caculate cable size for diff types of loads? if anyone know the calculating procedure please tell me

960






Inductor and capacitor........power in one phase and ...... in it another phase.

1606


what should be the ideal gauge of wire (In sq mm) for different loads in Ampere?

934


HI....HOW CAN BE MESARED THE VALVE OF NEUTRAL GROUND RESISTOR WHIC IS LOCATED AT SWICHGEAR ON GENERATOR SIDE....

1605


what is method for testing CT

1618


Dear all, I just want to ask an expert on this forum for some insights. For the magnetic balance test, when applied voltage on a Delta-Star transformer e.g. Dyn11, the following relationships apply for HV side: 1.  H1-H2 = H2-H3 H3-H1 2.  H2-H3 = H3-H1 H1-H2 3.  H3-H1 = H1-H2 H2-H3 For the LV side also: 4.  X1-X0 = X2-X0 X3-X0 5.  X2-X0 = X3-X0 X1-X0 6.  X3-X0 = X1-X0 X2-X0 Is there a similar pattern for Y-d, Y-Y, D-d? And how about Y-z, D-z, Z-y transformers? I've tested a YNzn5 transformer and for LV side I don't see the pattern. In this particular case I got for LV side the following (see values below): H1-H0  H2-H0  H3-H0    X0-X1  X0-X2  X0-X3 128.0  119.9  7.2      29.2   13.3   15.8 70.7   128.4  59.2     23.4   22.0   3.6 7.2    120.1  128.1    13.4   29.3   15.8 What is the relationship here for LV? For row 1 I see the relationship, for row 3 I also see but it's shifted, but for row 2 I don't see such relationship. Any suggestions, answers, someone?

1362


if we have a industrial load of 400 kilowatts with 415 volt AC then how much total harmonic distortion (thd%) should be acceptable for steady power system.

1573


HOW TO CALCULATE S/C,O/C,E/F OF ACB.

2144


8. A DYNAMOMETER TYPE WATTMETER RESPONDS TO THE.......

8489


What is MSL designation of a motor and same may be provided in details.

1225


i completed my DEEE. and i want to electrical c license. how to get it..?

1693