Difference in load break switch, isolator and circuit breaker.

1 Answers   KSEB, L&T, Siemens,

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What is R/X ratio? I have heard that this ratio is higher in a radial distribution system.Why is it so? I would appreciate a word. Thank you

1 Answers   Power Grid, Vignan University,

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What is mean by Sensitive Earth fault & what are the effects

1 Answers   Enteg Technologies,

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how to select the automotive wire size by mathematical calculation. for xenon headlamp with ballast. the ballast given data voltage 10-17v,current permenant 6amp, run up phase is 15amp, peak at swicth on max 400micro sec is 40amp.the sum of cable resistance is 150mohm.please provide referenc document if any for relating the peak at switch on current,time & wire wire size

0 Answers   Tyco,

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I am having dual speed motor of cromton greaves make of 3.7 KW -1400 rpm and 5 KW - 900 rpm. Please let me know groups and winding connction for rewinding purpose.

0 Answers  

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what are the protection for DG set and why?

2 Answers  

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i installed 100kva ups. what KVA genset they should provid in input side? plz any update formula or ans with reason.

0 Answers  

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what is the use nuetral wire

8 Answers  

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Differenc between the resistance and resisters?

5 Answers  

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Basic philosophy of applying 3P tripping for uptill 132KV switchyards & for 132KV & above 1P/3P tripping is used.

1 Answers   L&T,

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improve power factor by : 1)shunt reactor 2)shunt capacitor 3)series capacitor 4)series reactor

2 Answers  

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why two contacts(in series) are using in closing circuit

3 Answers  

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