if we convert kva into Ampers,which one formula use by us,pls tell me?

7 Answers   ABB,

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what are the various types of towers used in transmission line

12 Answers   Power Grid, UltraTech,

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in india are trains run by DC or AC? if DC , from where it receives negative potential? because pentograph receives singe potential only?

2 Answers   GATE, PSU,

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what happens when the phase and earth wires comes in contact? and why

2 Answers  

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Give the two basic speed control of DC shunt motor.

4 Answers  

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how to calculate the ct burden?

1 Answers  

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what is fault level in 66kV system?

3 Answers  

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1)Why potential transformer primary site grounded? 2)can be loop between neutral & body for grounding? 3)What is the difference between ELCB &RCCB? 4)Why we use iron core in transformer insted of wooden core? 5)what is the principle of excitation? 6)Why we test the core balance test for transformer? 7)what is creepage?What is the creepage length for insulators at different voltages? 8)How much type of relays used for differential protection of generator,transformer & busbar protection?

5 Answers  

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What is the difference between earth fault and restricted earth fault protection?

1 Answers  

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why current flow throgh conductor.

2 Answers  

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WHY EXCITATION OF SYNCHRONOUS MACHINE IS DC NOT AC

8 Answers   NTPC,

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In a 3 pin plug holder, what is the purpose of diameter of ground pin is larger than phase and nutral pin

9 Answers   Coal India, HCL,

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