How do apply electrical 'c'license......pls advice

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What is the meaning of insulation leavel LI 75 AC 28 About scott transformer spcification

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Is it necessary to seperate the DG earth grid with Electricity Board earth grid for protecting the DG set. if yes why?

2 Answers   BARC,

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when i am going to take trail on a 3ph sq.i/m motor 5.5kw, i observed that RPM of the motor is very low as compared to the rated RPM and also it rotates in clockwise in first ON command,and anticlock wise in second ON command. finally i observed that on phase is no available . but iam not clear about, why the motor is rotates in both directions without any phase interchanging.pls answer to my question.

1 Answers  

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WHAT DO YOU MEAN THE DIFFERENT TYPE OF CURVES OF RELAY LIKE STANDARD INVERSE, VARY INVERSE, NORMAL INVERSE, LONG INVERSE ETC....

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Actually I have a doubt on neutral and earth.we use Ac power without taking neutral by connecting to earth,but at that time does it affects on efficiency of any electrical components or no? If yes how?

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can we connect transformer with star conected secondary to delta connected primary in series?

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Explain the working principle of Synchronous Generator and Assynchronous generator?

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What does impedance in the windings of transformer signify.

2 Answers   Johnson Controls,

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What happens with squirrel induction machines if the ends of rotor conductors are kept open? Explain

3 Answers  

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What is the form name of 'c' license, I want to download in web

0 Answers   BMM, Ceebros Hotels,

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What is the meaning of Fault level rating?

1 Answers   Balrampur Chini Mill,

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