what is derating?, why it is neccesary, it is same for all means for drives, motors,and cables.

1 Answers  

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Can 60 Hz transformer be used inplace of 50 hz transfromer?

1 Answers  

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I have been short listed for sydicate clerkcal post .i have interview on 15th sept..i want to ask if i don't know kannada to read and write they won't allow me to attend the interview?Do send u r reply.......

1 Answers   Syndicate Bank,

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campared to ac, in dc corona loss is

4 Answers   DRDO,

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what is the difference between effective earthing and resistive earthing?

3 Answers   REL,

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bit confused - am i correct in thinking that to determine line to line voltage in a star config 110v 3 phase 4 wire distribution system i would use a voltmeter? I have a circuit configured as an unbalanced load, consisting of three incandescent lamps (1x40w, 1x60w, 1x100w - all 110v rated)connected in a star configuration to a 110v 3 phase 4 wire distribution system. I want to find out what types of meters i would use to obtain: a) each line to line voltage b) the line to neutral voltage across each load c) current flowing in each line and load d) current flowing in the neutral conductor e) power supplied to the loads im assuming i would be using ammeters in series along each line and voltmeters in parallel across each line to neutral? Also how could i predict these meter readings before taking them and with which formulae? Any help would be greatly appreciated A.

1 Answers  

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what are the breakdown voltage rating of mini- curcuit'transfarmer!

0 Answers  

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Frequency of rotor emf in induction motor is around A same as stator frequency B 50% C 5 % or below D 30%

1 Answers   Bhel,

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WHY THAT THREE COLORS CHOOSEN IN 3 PHASE? WHAT IS MEAN BY RYB?

2 Answers  

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What is the Different b\w Circuit Breaker & Isolater

11 Answers  

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what is the diference beteween dedicated earthing & body earthing?

1 Answers  

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want to know about DMRC

4 Answers  

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