Answer Posted / puja sinha

time graded protection

is there any role of power factor with frequency variation? and how we can manage the frequency variation?

2059

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explain me the relation between torque, frequency,speed,voltage and current in the 3 phase induction motor?

2264

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description with working of all parts of a Diesel generator???????

2491

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what is difference between elr and R eartl realy.

2641

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what is the acceptable limit value for Desolve Gas Analysis/

1992

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what is the function of choke in the flourcent tube lights and why the colour is in white mostly in flourcent tube lights

1940

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what is maxemo work permit procedure

2207

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at work we have a 3 phase motor but on testing one phase isnt getting a reading. it runs 24 hours a day all week. stops and starts well no noise or heating. the phase isnt down to earth.is it just a bad meter reading or not? phases one and three came up with a resistance reading of 0.4 but phase 2 couldnt get anything shows up as open circuit.

1670

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how can you size an automatic voltage regulator?

2365

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2- What are the percentages between excitation currents in phase (R, S and T) in ∆ and Ỵ connections in excitation Current test in transformers?

2020

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I have a situation to design sub-Distribution board/Panel meant for feeding power sockets. In the incomer CAN i Take TP MCCB with Neutral Link and All the outgoing feeders with to sockets with TP MCCB and Neutral Link? P.S : My System is IT Earthing

1824

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How will you justify IR value and Charging voltage of any motor,transformer and Cables.......???? . . . . . . . . Plz tell me any body Baljeet Singh, engineer_89@refiff.com

2126

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Saving in copper achieved by converting a 2 winding transformer in to an auto transformer is determined by A voltage transformation ratio B load on secondary C quality of core material D size of transformer core

3152

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where does 22kv line starts

3102

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state the working principle of incondenscent tube?

1944

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