Answer / tapeshwar pandey

It should be more than 11 mega ohm as per thumb rule.

Answer / kani

insulation resistance must be infinite otherwise leakage
current will flow ,so that insulation detoriation happen

Answer / murthy

Ideally in the range of 5oMohms is required for less
leakage current.2Mohms per KV of the cable at room
temperature is a thumb rule

what precautions to be taken while desigining a LT,HT panel. Eg-LT panel PCC panel with ACB installed. HT panel VCB panel with VCB installed. & what is main diffrence betwn IP54 & IP55 construction of panel.

0 Answers   Bhel,

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In Battery Charger - What is the meaning of End Cell Voltage and Float Voltage.

9 Answers   FLSmidth, Focus, PSEB,

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If DC supply is given to a transformer it may a) Work b)Not Work c)Give lower voltage than the rated voltage on secondary side. d)burn the winding

12 Answers   wbsedcl,

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Why did lightening arrestor solid copper rod head is sharp on mobile tower top?

0 Answers  

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what is mcb

7 Answers   L&T,

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What are the various methods for effecive earthing in a factory in a rocky terrain, where soil resistivity is extraordinarily high? The usual method of 3 m deep earth pits is not serving the purpose.

4 Answers  

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what is the difference between ac and dc hipo test of cable?

2 Answers  

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How to select circuit breakers rating eg. if i select a circuit breakers of capacity 40 amps DC with operating voltage 28 volts and if i what to use same circuit breakers for 300 Volts DC application what is the current rating of this circuit breakers.

0 Answers  

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What is partial discharge in power cable?

1 Answers  

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explain remenance . differentiate high remenance type ct & low remenance type ct

0 Answers   Coca Cola,

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a solar energy installation utilizes a three phase bridge converter to feed energy into power system through a transformer of 400v/400v.the energy is collected in a bank of 400v battery and is connected to converter through a large filter choke of resistance 10ohms.1.the maximum current through the battrey will be.2.the kva rating of the input transformer is.

1 Answers   GATE,

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Why restricted earth fault protection is needed? Why can’t differential Protection is sufficient?

3 Answers  

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