what is the safe meggar values for motor, transformer HT, LT and Cables? IF we want to replace I/C bay at our 220 kv substation which is of 140 mw load capacity bay to be replaced by 400 mw capacity bay.other than CT(1200/1) what are the other equipment i have to replace. why we generally use 3.5 core cable or in other word 1/2 core for neutral and also confirm me that in balance conditiob(3 phase)current in neutral will zero

0 Answers   Jindal,

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Explain the propagation of harmonics in the network and influence of phase angle of harmonics.

0 Answers  

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what is mean by drives?

0 Answers  

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Can 4pole (3 phase+neautral )RCCB proper functioning in only 3 phase load (no neautral, no Earth) ?

0 Answers   HCL, Reliance,

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Draw the line diagram of diffretial relay connected to transformer?

0 Answers   NTPC,

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What will be the output of an alternator ,if the field current is single phase ac supply.

1 Answers   DRDO,

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Mention the disadvantages of low power factor?

0 Answers  

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If I want to replace a 26KW Slip ring Motor with a Squirrel Cage motor & Drive (for a Hoist Application). How can I approximate the Motor & Drive HP required in new Setup.

0 Answers  

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What is the deference between earth fault & earth leakage

1 Answers  

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What is the difference between newtral earthing and body earthing?

3 Answers   JK Lakshmi Cement, NPCIL,

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is tree is a good conductor and it may be used for conductor?

3 Answers  

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HOW TO SET THE EARTH FAULT SETTINGS IN ACB????????????

0 Answers   General Electric,

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