Answer / j.karthik(cce)

PIR means Pre insertion resistor... This PIR is connects
parallel to the main interruptor..This is used to limit the
current to be interrupted.

Give a brief idea about Control circuit wiring in Substation...???

2 Answers   KSEB,

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can anyone tell me the website for star-delta control diagram?

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What is mean by sinewave.

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as per BIS supply voltage in India is ......

9 Answers  

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what will happen if dc is supplied in acb or mccb or other circuit breakers?

1 Answers  

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For overhead protection we use which transformer?

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CPC cable .PVC \1C....I want to get sure that type is flexible indoor or to be install on trench. please advice .thanx :)

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whenever any squirrel or a crow falls on the transformer input line then there is a big explosion and 440 volts of power is being discharged through the neutral line due to which appliances in off mode are also burned.we have earthing for the transformer as well as the bus bar chamber.why is it happening?

1 Answers  

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AT THE TIME OF INSTALLING THE POWER PLANT POWER IS TAKEN FROM NEARBY GRID AND GIVING THE SUPPLY TO THE GENERATOR WHICH ACTS AS MOTOR. WHAT IS THE NEED OF RUNNING THE GENERATOR AS MOTOR?

6 Answers  

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what is difference between armoured cable and un armoured cable

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If only R Phase is connected in 2 pole elcb, n is not connected than it will work or not in ground fault.

0 Answers  

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I have a transformer 3phase 11kv/410v and its name plate missing. now how can I judge its rated kva?

2 Answers   Coca Cola,

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