in case of OC+EF relay, how the burden is divided/calculated/shared by the CTs in case of normal (healthy condition) and during fault conditions.? three coils of OC & ef coil is conected in residual connection across the three CTS.

1 Answers  

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what happens to a turbo alternator if it get trip and 1 out of 3 poles of circuit breaker in close condition

1 Answers   wbsedcl,

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WHAT IS MEANT BY vfd(VARIABLE FREQUENCY DRIVE )HOW CAN WE APPLY VFD TO MOTOR ? I WANT FULL DETAIL IF ANYBODY KNOW THE WEBSITE FOR THAT PLZ SEND .THANK U

2 Answers  

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What is AVR in Turbo generator in Thermal power plant?

5 Answers   Thermax,

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Why do we use only Sinusoidal Wave in AC supply why not the Square,Triangle or Sawtooth etc?

2 Answers  

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How to measure size of cable on a given load

0 Answers   Green India Engineering Solutions,

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different between grounding & earthing?

23 Answers   L&T,

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HELLO EVERYONE, I RECENTLY HAVE FOUND ONE PROBLEM, I WAS TAKING NO LOAD TRIAL OF AN HT MOTOR 920 MOTOR , 1440 RPM , 6.6 KV, WITH AUTO TRANSFORMER. AT 450 V, LOAD WAS 40 AMP AND SPEED WAS 250 RPM. BUT AS WE INCREASE VOLTAGE FROM 450 TO 480V, LOAD BECOME 41 AND SPEED REDUCED TO SOME RPM . SO WHICH PHENOMENON ACTED HERE FOR REDUCING SPEED.?? AND IS IT HAPPENING ALWAYS OR IT IS RARE? I ALSO HAVE FACED SUCH PROBLEM WITH FEW LT MOTOR ALSO.

0 Answers  

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what is servo motor principle? difference between induction motor & servo motor?

1 Answers  

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wat s reactive power.... how could it be compensated.....

4 Answers   TCS,

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Caliculate the Specific Fuel consumption of 320 kva diesel genarator set?

3 Answers   AllTech, RRB,

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What is the breaking capacity of transformer and how can we calculate the breaking capacity of tranformer

0 Answers   Siemens,

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