Why do we need interlocking in a HT metering or Ring main unit switchgear?

0 Answers  

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how to test a motor from megger

5 Answers   JSW,

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what is ripple component in ac supply?

2 Answers  

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My system is 22kv/3.3kv transformer. client is asking to use NGR, but as we have dedicated Neutral Earthing systems which has a value less than 1 Ohm. So i want solid comparision. Why i should not use NGR as my system is already protected.Can any one help me to get out of this.how should i reply on basis of some great comparision and calculations. Please help

2 Answers   Ariel,

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How can calculate rotor temperature of the alternator? and is there any method to calculate that

1 Answers  

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Explain what is Zener diode?

1 Answers  

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What is earth?

0 Answers   CLG,

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What kinds of decision are made about CT from it's Knee point(voltage & current)?

2 Answers  

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why cannot we use a freuency more than 400hz is used in aircrafts?

1 Answers  

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ACCORDING TO IEC WHAT SHOULD BE THE MINIMUM HEIGHT OF G.I. STRUCTURE OF CT, PT, ISOLATOR, LA?

0 Answers  

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AC is the magnitude of sinosudial-wave but we use cose value to determine power factor instead of sine value.

2 Answers  

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What is method of calculating the fault current for a MDB, 50KW, 3PH, 415V, 50HZ?

0 Answers   L&T,

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