Answer / srajan

The insulation of transformer winding is tested with megger..it is tested as insulation of lv to earth , hv to earth and hv to lv..it is commonly known as IR testing..its value will be different according to weather..changes drastically in monsoon..

what the good value of earth resistance test

3 Answers  

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why ct ,cvt should be stored in a vertical position?

0 Answers   Balco,

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What is the rating of a circuit breaker needed for 300 kv load in 33KV supply line of 33/415 transformer ? Whether 800/1200 amp vaccum circuit breaker can perform for a 33 KV line in input in 415 volt in output of the transformer ?

0 Answers   Hira Group,

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How servo stabilizer works.

0 Answers  

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Transformer calculation

1 Answers   Aramco, LMW Lakshmi Machine Works Limited,

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What voltage is used in Directional earth fault relay? and why?

5 Answers   L&T,

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the input mechanical power of a single alternator is increased,its RPM increased but in case of an alternator synchronised with grid its RPM does not increased with increase of input mechanical power. why?

3 Answers   Bhel,

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where solid grounding and where grounding through ngr done and why?

0 Answers   NTPC,

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tell me about roaster switch .& what is the function in transmission & distribution?

0 Answers  

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A 6.6 KV motor breaker is try to Drack OUT by me while the motor running. What will Happened? a, will Trip. b,Drack Out lever will not access c, will get shock d, noting will happened

4 Answers  

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What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?

2 Answers  

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In three phase, phase to phase voltage is 440 Volts, but the three phase motors are designed for 415 Volt, 50 hz, why

1 Answers   Shree Ram, Shriram, Sri Ram,

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