Need help. 3 phase system. Neutral line arced and melted upon connection of connector with 3 phase power. Why would that happen?

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what is the purpose of reactor in electrical substations ?

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What is the different between earthing & Neutal

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how electrical energy is converted into mechanical energy in dc motor

3 Answers  

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What value of resistance required between Saftey earth and instrunment earth , maximum and minimum values required

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how to calculate a cable size while load is given in amp or kw and length is also define.?

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Can any one tell me the current VAT, Sales Tax, Octroi and Excise duty for the financial year 2009 -2010. Say control panels are manufactured in maharashtra, then what will be the taxes for within Maharashtra and outside Maharashtra?

1 Answers  

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what is exiter winding,stator winding,avr?how it will work?

1 Answers   Siemens,

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I have one ct of ratio 3000-2000/1 Amp its knee point voltage mentioned on name plate is 500-333/30mA-50mA at Vk/2. in secondary box there is three terminal named 1S1, 1S2, 1S3 then on which terminal obtained the knee point voltage ie 1S1-1S2 OR 1S1-1S3 & also specify the knee point voltage for the ratio 3000 from name plate.

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What is the Difference Between MCCB & ACB & VCB

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how LVDT works?

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In a transformer ,when voltage decreases current increases. but this is a violation of oms law.why?

15 Answers  

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