What are the various types of BUSBAR Schemes? explain each

2 Answers   Thermo,

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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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There is no such thing as a Generator. All power generating devices are Alternator since both generate alternating current since this is the only way electrical power can be generated. In "generators" the alternating current is converted into DC inside the housing of the "generator" in order to give out DC Do you agree? If not please educate me. How else is DC generated if not like above?

2 Answers  

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how to check ac servo motor

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Define over current & earth fault ?how its functioning ?

1 Answers  

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how to do the ductor test?

0 Answers  

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reason of diode failure in alternator

0 Answers   adag,

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how can we charged the battery in DG

2 Answers   MTS,

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What is four quadrant metering system.

5 Answers  

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-What shall be short circuit current of LV switchgear for a 1000 kva, 11.415kv, 3 phase tranformer with 5% reactance.

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if its possible for step up or step down DC volage directly ? possible means how we can do it ?

5 Answers  

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What is switching over voltage?

1 Answers   MEIL,

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