Answer / pravin kumar

The minimum Insulation Resistance value for the power cables
2mega-ohm/kv this is both applicable for LT& HT side
for ex:
11 kv power cable need IR value is 22 mega-ohm

Answer / pgr ram

for HT cables (6.6 KV to 33KV) above 500 megohms is
required. For LT cables (1100 volts) minimum 100 meg ohms
is required

Answer / ibrahim

(cable voltage rating/1000+1M ohm)x10

Answer / deepak marya

IT IS ONE MEGA-OHM PER KVA AT 70 DEGREE CENTIGRADE.IR VALUE
IS HALF FOR TEN DEGREE CENTIGRADE RISE IN TEMP.

We know flow of electron is current . But why electron flow from negative to positive and current from positive to negative?

4 Answers   Power Grid,

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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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Give some differences between open loop and closed loop control systems.

0 Answers   GE,

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Define thermal resistance in the context of power amplifier.

0 Answers  

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What is polar plot?

0 Answers  

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WHY DOES NEUTRAL DO NOT CARRY EVEN THOUGH IT CARRIES RETURN CURRENT?

1 Answers  

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Can we provide 3phase wire in conduit for room?

1 Answers  

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what is the lightning arrester rating for 3.3kv system voltage

1 Answers  

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i am venkat i got gre 930(verbal 270 quanta 660) and my toefl score 105..here question is why u got less score in gre ? what i supposed to tell...any chance of rejection is there...my accadamics record is very good

0 Answers  

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in transformer which grade oil will use?

3 Answers  

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how many desk top computer can connect to a 25kva 3phase generator?

1 Answers  

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why is a power transformer used only occasionally?it is used to step up at generating stations?and that needs to be done all day long !!!!!!!

0 Answers  

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