What is difference between start imitation and start interlock for 3 phase motor protection ?

0 Answers   Siemens,

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why in power staions distriution r like 11kv,33kv,66kv in india?

4 Answers  

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Logic using 1 kV or 1,1 kV grade in house wiring Low voltage cable. Explain/suggest? some use 1kV and some prefer 1.1kV grade insulation low voltage cable why??

0 Answers  

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for testing busbar (33kv) hi-pot .whether we can apply DC r not.and what is the test volt for that .explain

4 Answers   WGPSN,

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-What should be minimum value of insulation resistance and maximum value of earth resistance at any electrical instillation and what is method of testing the same.

0 Answers  

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As per principle we say in three phase supply ,the voltage is producing by phase angle between two phase so two phase is needed means then why we using three phase ?

2 Answers  

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Explain the process of commutation in a dc machine.

0 Answers  

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What is nyquist contour?

0 Answers  

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What will hapen if we connect more capacitors than required for powerfactor control? Exactly what will be the effect on power system?

2 Answers   Mandovi Pellets,

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What is polar plot?

0 Answers  

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how to give earthing in ships?

1 Answers  

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How can make a star delta with Rstar delta feeder ( ( 4contactor & one timer ) pls answer with digram (power &control digram)

1 Answers  

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