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 the method of electric earth for the protection of low voltage electric equipment

1 Answers   MacLellan, Shiva Corporation, Siemens,

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Why can not you store AC power in battery like DC power?

1 Answers   NTPC,

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Which is the best protection in case of shortcircut fuses or mccb ?

2 Answers  

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I am about to write exam in RRB bangalore for the post of section engineer.please provide me with previous exam questions

0 Answers   Wipro,

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how we can decide that what value of ht line will come to any commercial building? (ans except According to the building load)

0 Answers  

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Does RCCB do the job of MCB? Lets take 16A RCCB. it trips when residual current exceeds 30mA. does it trip in an over current situation, i.e when current exceeds 16A ??

2 Answers  

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comparision between ACB and VCB

0 Answers   Lupin,

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i need the curve duty cycle and amper for (150 kva @50% dyty cycle) transformer turn ratio :19 and vin 400

0 Answers  

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How to select the cable size for the given load ?Pls explain the Formulae

3 Answers  

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briefly explain the main blocks found in a microprocessor based system

0 Answers  

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What is the difference between INVERTER and UPS?

7 Answers  

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