why contactor not provided between output of VFD and motor?

6 Answers   Siemens,

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What kind of battries are generaly used with Disel Generator?

1 Answers   Exide,

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If a 3 phase induction motor is in off condition in the conveyor and rotor of the motor keeps moving with the conveyor than the resistance of windings of motor varies. why is it so ??

0 Answers   Jindal,

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What is the approximate percentage of Si content in transformer core(CRGO-Cold Rolled Grain Oriented)? Why it is kept so low?

1 Answers  

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how step up transformer step up the voltage and what is the reason behind it?

3 Answers  

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what is the difference between arc and spark

2 Answers  

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What is different between DOL(Direct on line starter), VSD, S/S(Soft starter), and A/T(Auto Transformer)

2 Answers  

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why power generate in 33 kv it will be step down by 11 kv .

5 Answers  

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generator(Deutz 550kv)is runing for 2 hours with load of 900 amp and then it goes in shutdown with alarm fault messege of speed fault although heirtz reading fixed at 50,what does that mean

1 Answers  

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Why lose 1 phase voltage in 33kv to 415v stepdown transformer

0 Answers  

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Is there any problem ,if R-Y-B voltage is constant , but the air compressor taking one phase high current.what is possible causes.the said compressor is very new.(55kw).

4 Answers  

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HOW VFD USED IN ENERGY SAVING

8 Answers   ITC Infotech,

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