what is the use of capacitor bands?

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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Can we use generator transformer as step down transformer? How?

3 Answers  

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what is black out?,what is brown out?

1 Answers  

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As per is what is distance between two chemical type earth pit

2 Answers   DAR, Dr Reddys,

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why mostly conductor made by 7 nos wire?

1 Answers  

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What is the d/f between DOL & star delta starter & automatic star delta starter?

23 Answers   ACC, Dalkia, Engineering, Indeco, NINL, Novotel, RMH Control Systems, Wipro,

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why we use battery source for current transformer polarity testing?

2 Answers  

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for preparation of design note of 11 / 220 kV , 3 phase, 63 MVA transformer how can calculate or consider the iron losses and copper losses

1 Answers  

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why gravels is used in transformer yard?

6 Answers  

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if 6 earth pit value is 1.5 ohm then what should be the number of earth pit to make the value .8 ohm

0 Answers  

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Define super node?

0 Answers  

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