wat is d diffr btw shunt coil and trip coil in VCB?

2830

How one can check the MAIN of a house wiring ?

1968

How to arrange a hous hold earthing system to keep minimum earth resistance( below 7ohms).

2174

What is the working principle of MIG welding? and its out put Voltage?

3309

We have 250 KW x 2 motors, which are load from 25% to 100% varying load in every minute , so how can we compansate the power factor. pl give your opinions on the above subject.

1871

why is a power transformer used only occasionally?it is used to step up at generating stations?and that needs to be done all day long !!!!!!!

1869

We have two APFC panels in same station. I need how to connect CT in two APFC panels.can we take one CT in series connection or two separate CTs.

1517

WHAT IS SITTING AMPS IN OVER-LOAD RELAY FOR 1PH OR 3PH MOTORS?IF ITS NAME PLATE GIVEN MAX AMPS 10AMPS?

1757

what will happen if earth of 33 kv cable (earthed system) is not connected to earthing pit?

2029

what is the difference betweem star connected motor & delta connected motor?

2362

when it is possible kvrah lead & fundamental kwh be equal in electonic trivector meters (3 ph)

1992

what is the Pickup/drop off ratio in BCPU relays

4647

what is errection pcbs?

1914

What do you mean by reach and reach the point of the relay?

1261

What is DC series motor?

1270