Answer / ramanrajivgandhi

Buchhol's relays,Earth fault relay,Explosion vent relays,Alarm circuit relays,tripping circuit relays

Answer / vikas kumar

that is 2 types of power transfomer protection 1. main protection
2. back up protection
main protection eg: diffrenceal relay protection.
back up protection eg: IDMT over current
& earth fult, dc logic protectio (buchholz, PRV, MOAG,SPR) etc.

Answer / karthi

Differential protection
REF protection
Stand-by Earthfault protection
Backup Overcurrent protection
overflux protection

Answer / magan

above what amp current rating do bus ducts use in LT. ??

How relay coordination has to be done? what are the inputs are required for this? Please explain this with calculation method?

0 Answers   Elektrotek,

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If VFD is On but no starting commond on it. so how many outpout voltages of VFD

0 Answers  

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which site/city in India has all three(thremal,Hydal and Nuclear)power generaton facilities?

2 Answers  

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WHAT IS THE MEANING CREEPAGE DISTANCE

1 Answers  

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our industries ht line so power fluctation(once drop of power please rectify causes

0 Answers  

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why it is so called as xlpe(cross linked poly ethyline) cable?

0 Answers  

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single phase for 230 then why three phase are 440 volt

4 Answers   ACIL,

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why we grounding the neutral of a transformer?

3 Answers   GAS,

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what's burden resistor, why it's used?

1 Answers   Bhel, TVS Group,

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how to identyfy cable sizes?

4 Answers   IAF, Mylan,

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what is circulating current in parallel transformer???plus how it is generated ???plz explain in detail.........

2 Answers  

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Explain the operation principle, advantages and disadvantages of the following converters: a) A 12 pulse converter b) A Switch-mode inverter c) A thyristor inverter

0 Answers  

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