what is reason in mv breaker the control supply voltage is dc not ac?

1 Answers  

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How relay works, reverse relay, master relay, os relay, earth fault relay and what is its setting point

0 Answers   cpgn,

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I have a 33 KV sub stn with two mother transformers 33/11 KV of capacity 3150 and 1600 KVA respectively. The total connected load 16809 KVA(11/0.433KV).how i calculate the max current & how i decided the CMD.

2 Answers  

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The following equipment are installed ia a plant 1. 110KW Induction motor 4 Nos 2. 30 HP motor 3 Nos 3 15 HP Motor 3 Nos 4 7.5 HP motor 4 Nos what is total load of plant if one of each is stand by.

3 Answers   Blue Star,

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what is the order of mgnetiation current in a current transformer of 1000A/1A ratio?

2 Answers   Power Grid,

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how nautral is provided for return path is 3 phase induction motor

0 Answers   SNGPL,

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how much watts are equal to one unit of energy meter?

9 Answers  

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WHEN I AM CONNECTIN TWO ELCB IN PARALLEL.ONE ELCB TRIPPED...HOW IT HAPPEND??

5 Answers  

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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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What are the different methodes for calculating the short circuit Current?

0 Answers   Equate,

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i want to ask that as everybody knows that in star connection on star point is called neutral. my question is that why on that poin called neutral. what is the reason behind it. what is the logic behind it. i heared somewhere that on this point all phases current become zero thats why. if this answer is right then prove why on that point is current become zero. if this answer is not right then tell me the right answer. post ur answer here or on my mail address. m.ikram786@yahoo.com m.ikram555@gmail.com. thanks.

1 Answers  

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How to calculate wire length,size & current? ( related to control panel)

0 Answers   FSS, GK Controls, Panel Tech,

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