why the arc welding machines require parallel earthing systems? ie why each machines are connected to earth pit by separate wires during earthing? wats it adavantages?

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for opening electrical shop, tips needed.

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Generator protection &generator test

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What is tan delta & PPM in transformer? and whats its IS value?

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How good are you in resolving the commercial issues to Employer's advantage?

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why induction motor take more current when motor start time and this current take for 1 hours when motor is start.

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WHAT IS THESETTING CALCULATION FOR THE RELAY?

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What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?

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What is phase angle? and what is importance to measure it?

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What is the temperature PROFILE OF A FLUID W. R. T. Distance from a sphere to which it is IN CONTACT which is at constant temp.?

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There are different classes of protections in power plants.class a,b,c are clear..is there any class d and e r there..and elaborate class b protection.

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what is a synchronizing lamp ?

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