When we have earthing mesh or underground earthing network in industrial plants, weather we have NT-S or NT-C-S kind of earthing system, so eventually weather we must use 4 or 5 wire in 400 volt level (For example 3×150+70 mm2 or 5×150 mm2) in this connection I would like to know exactly the paragraph of IEC or IEEE number

2176

How a capacitor discharge weld power supply works? what is the use of a pulse transformer?

2078

Help need in transformer !? Hello Friends The parameters of 2300/230 v 50hz t/f is R1=0.286 ohm R`2=0.319 ohm Rc=240 ohm X1=0.73 ohm X`2=0.73 ohm Xm=49.2 ohm Secondary Load impedance ZL=0.387+J0.29 solve the exact equivalent circuit with normal voltage across primery.. I know every thing but i cant find CURRENT I1=? and I`2=? Please help me give solution or only Formula please please...

3107

What are the significant parts of dc generator?

1140

define hysteresis loss, eddy current loss and windage loss

1996

List the power rating of any 5 important electrical appliances used in houses.

2052

xfhnchncv?

1910

Whether it is possible to measure energy at the input of rectifier transformer (12 pulse with very high odd harmonics)

1901

State magnitude criterion.

1116

What is the difference between security constraint unit commitment and security constraint optimal power flow?

1710

Why front mounted CT polarities are always towards breaker?

2024

What is the difference between rulling span and wind span of of an Over Head Transmission Line?

2325

what is the difference between ac motor and dc generator

1857

how can you size an automatic voltage regulator?

2354

difference between crane drive and line drive.

1908