Answer Posted / rbkrishnan

And there are three coil A,B,C are used in that .my
question is what are the coil pickups during breaker on &
off

What is effect of harmonic current (Draw by VFD) on power system/ electrical Equipments ?

2036

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WHAT IS DOL STARTER? HOW IT WORK? GIVE ITS CONTROL AND POWER DIAGRAM .

2139

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What is gross error?

1115

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

2049

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In Indian Household, generally we receive 220V AC single phase supply. But AC has 2 phases, +ve & -ve. So in +ve half cycle current is flowing...so what happens in the -ve half cycle?? Please illustrate.

1991

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how we can come to know that motor winding resistance which showing by DMM is right or wrong???is there any chart or something that we will compare & check???

1871

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Which type of DG need Netral Earthing?

5245

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why the protection turbo generators is most complex?

2003

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All the socket in a room become very hot, the Wall was also became very hot and the earth conductor also became live, what in your view might be the possible causes?

1619

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This is urgent!! What is a Thyristor-based 3-ways selector switch with Zero crossing control? how does it operate and where is it mostly found in a system?

2022

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do any one help me to get "C" license,, i have doubts ,,, if mediators ter pls call me,, my no is 8056640042

1391

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what is the use of surge suppresser in 33 KV incoming panel. where it must be installed,inseries with incoming cable surge suppresser must be at incoming of the breaker are outgoing of the breaker

5351

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what is calculation mathod/formaulla for deciding Size of busbar (Copper/ aluminum)for L.T. panel on Various Fault level like 50kA,25kA,10kA

2764

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What does quality factor depend on in resonance?

1047

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How seriving & testing of the HT & LT breakers are done. What are the standard Ir values on which we can come to know the test is passed or failed?

2001

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