What fomula is used to calculate: 1. rated frequency withstand voltage, and 2. rated lightning impulse withstand voltage.

1774

What is the difference between single point and double point bonding. please kindly detail about bonding of cables.

2514

what is the maximim current drawn by 1 phase and three phase welding machine

1922

why motor range is available 22kv,30kv,37kv,45kv and so on? why motor range is not available 21kv,24,25,26,27kv and so on?

2870

Explain the function and difference of Restricted earth fault, simple earth fault and sensitive earth fault with connection diagram.

2715

Can we use BS 6651 and BS EN 62305 standards for computer room lightning ptotection in substation?

2306

why the carbon brushes are broken in srim while the motor runningtime

1766

What is creepage distance..... what will be the value for different voltage level

2028

what is meant by impedance & transient protection?

2168

What is the efficiency during maximum power transfer?

1323

What is reactance, reluctance,capistance, pls give answeer in hinglish and be simply Jo asani we smajh m aa jaye

2221

Is it true that in the 3 phase transformer, the limbs of the core are at 45 dgrees to each other. if true, why?

2131

What is a Phase shift meter? Where can I get one?

2301

Can i replace Earth leakage relay to the faulty Earth Faulty Relay

1568

Scott connection is used for A 3-phase to 2-phase conversion B to achieve higher effciency C to save copper D to reduce harmonics

2367