what is the difference between single phase, 2 phase, and 3 phase in electric meter?

1 Answers  

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why transformer tank is in rectangular shape what happen when it is in step shape

0 Answers  

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HAI,HOW TO SET THERMAL OVERLOAD RELAY FOR DOL STATRTER FEEDER AT START AND RUNNING?

4 Answers   L&T,

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Write a note on RC operational amplifier as integrator

1 Answers  

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What's the part of OTCC in transformer?

7 Answers   Bhel, RRB,

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why we are using2 wave trap in a feeder?

1 Answers  

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what is recovery voltage & transient voltage ?

1 Answers   Bhel,

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Give the selection criteria of a 3 Phase transformer for industrial purposes ?

5 Answers   NDDB, TATA,

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Please brief what is sinewave

0 Answers   Deccan Cements,

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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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What are the characteristics of negative feedback?

0 Answers  

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what is the formula of high voltage testing of three phase induction motor?

1 Answers  

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