what is the operating principle of contactor(power).along with disection?

3 Answers   NASA, Tech Mahindra,

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what is the difference between the following 2 situations ? 1)Line & Neutral=240V Line & Earth=230V Neutral & Earth=10V 2)Line & Neutral=230V Line & Earth=240V Neutral & Earth=10V

2 Answers   Reliance,

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low voltage distribution is done by a)3 phase 3 wire b)3 phase 4 wire c)single phase

3 Answers  

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what is slip what is the use of slip?

1 Answers  

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Do you know the overhauling of a motor?

12 Answers   EdCET, Mecon,

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What Should be the value of Vector Surge angle at Tripping and how to calculate it?

0 Answers  

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True or false question. 1.The fuse provide phase and neutral 2.power loss in electrical circuit can take place in (resistance or inductance or capacitance). 3.two phase system each phase has separated by a phase difference of (90 or 180 or 270 or 45). 4.3 phase balanced star connected load neutral current shall be (line current or phase current or zero or unity)

0 Answers  

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what convarts RRA in alternator ,AC to DC or DC to AC,

1 Answers   Birla,

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what is the method of earthing of a transformer using electrodes?

0 Answers  

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What is various types of electrical formula?

1 Answers  

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what is ph test in coolent cheking

2 Answers  

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what is entropy?

3 Answers   NTPC,

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