Answer / shimin

Because the value of permittivity of free space is very small compared to permeability of free space.

we have taken HV test of 2.5 k and Megger test on 11 kv HT cable.here it shows no fault but when we are charging the same cable with 11 kv supply why the VCB 11 kv gets tripped can anybody define the possible cause of fault ?

4 Answers   MAHINDRA,

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what is smart&micro grid technology?under coal gassification?

0 Answers  

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

1 Answers  

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how to improve IR value in HT motors?

3 Answers   ABB, AMW, Macleods,

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What is the winding resistsnce need to be in a 1000kva, 11kv/415v transformer, between ht winding to lt winding, ht winding to earth, lt winding to earth.?

1 Answers   Trident,

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WHY THE COLOR OF OUTDOOR TRANSFORMER IS BLUE ONLY???

0 Answers  

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what is MUSS?

1 Answers   HP,

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What is the function of attenuator in cro?

0 Answers  

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If ct ratio is 250/1 and mtr is of 5 amp, what will be mf?

1 Answers  

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How to calcute the cable size for both HT and LT please specify the formula for that Regards Chethan C

1 Answers   Bhel, Student,

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is it necessary to earth the rmu before cutting off the transformer winding?if yes why?

0 Answers  

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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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