how to calculate the surge level of surge suppressors related to the SF6 cicuit breakers?

0 Answers   Crompton Greaves,

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Explain the working principle of Synchronous Generator and Assynchronous generator?

0 Answers  

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In 110V DC supply,if a closed circuit gets open, How can we identify the voltage which is measured after the resistor(4KOhm) which is open with negative.it shows 55V +ve when measured, also the actual positive source is 55V +ve .Because there is no voltage drop in open circuit. How can we identify whether this is the voltage which is series with the resistor or the DC source direct +ve.

1 Answers   GE,

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how to calculate transformer turn primary & secondary side 11kv to 420v

0 Answers  

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in conventional fan regulators how the current varies with speed?

0 Answers  

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what is relation between vector group of transformer and its load hormonics?

1 Answers   Sanmar,

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what is the disadvantages of star connected alternator?

4 Answers  

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IN THE CASE OF AN ELCB, IF THERE IS ANY UNSTABILITY BETWEEN PHASE AND NEUTRAL IT MAY TRIP. BUT MY QUESTION IS WHEN A LOAD IS CONNECTED IN BETWEEN P AND N, THE LOAD CONSUMES SOME POWER AND THERE IS A DIFFERENCE IN NEUTRAL WITH RESPECT TO THE PHASE. THUS ACCORDING TO ME, THE ELCB WILL AUTOMATICALLY OPERATES WHEN EVER THE LOAD CONSUMES-- I KNOW IT IS WRONG. BUT THE SOLUTION IS?????????

1 Answers   KSEB,

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difference between torque mode and speed mode

4 Answers   JSW,

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

1 Answers  

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why we calculate only 11kv 33kv and 132kv ... why not 10kv 20kv 45kv?

3 Answers   Bhel, ISMT,

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3phase cable calculation formula by motor load

0 Answers  

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