What should be the protection scheme for a 15kw, 3-phase motor working in a lathe machine.

0 Answers  

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why+ve is earthed in electrostatic precipitator in thermal power plant

0 Answers  

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HOW TO DO GRID EARTHING IN INDUSTRIES FOR A PRODUCTION BUILDING

3 Answers   Timken,

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can we light the mercury vapour (tube light)with out a 1).starter and 2).choke in our homes if yes explain how?

5 Answers  

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what is MEMS and any one of it applications?

1 Answers  

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1.Difference between vcb and Acb and partes. 2.Difference between STS and ATS.

2 Answers  

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Is a contactor (or master relay) required between incoming lines and a VFD? The question goes to safety. If a contactor were used before the VFD and an e-stop engaged then the motor will coast to a stop (i.e. VFD loses power) instead of stopping much faster if the VFD braking fucntion were used. It would make more sense to keep power on the VFD.

0 Answers   Pride Hotels,

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If there is volagte between earth and neutral, what should be the reason ? and solution * What should be allowable limit in case, if the voltage between earth and neutral exist ? / OR what is limit for safe voltage between earth and neutral?

3 Answers  

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how to get more than 1000 ohms between 2 earth pits ?

2 Answers   HCL,

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what curve and rateing would you use for a three phase 0.75kw motor?

0 Answers  

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give 5 differences between relay and contactor

1 Answers   Texas,

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what is meant by residual over voltage & residual earth fault ?

0 Answers  

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