In an ideal transformer no load primary current I0 A lags behind V1 by 90 degree B is in the phase with V1 C leads V1 by 90 degree D lags V1 by 45 degree

1 Answers  

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i am using star-delta connections with reverse/forward direction motion of the 75hp induction motor.What should be the ratings of Main,Delta and Star contactors and why?

1 Answers  

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How to find the maximum load(in KW)in a big industry, having motors,lights,lifts etc..?

2 Answers   ME,

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What is the resistance of human body from head to toe?

10 Answers   Bhel, Getco, Infosys,

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1. what is exciting winding, rotor winding, startor winding. and how it works? in ac generator

3 Answers  

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Why CT's shall not be kept open?

5 Answers   ABC, Qatar Gas, TIPL,

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During he starting up of the motor, the upstream's MCCB (350A) always trips due to the UVT relay activated. Can Star-delta starter use for a 20kW Motor (For a powder mixer machine) cause voltage-dip in the supply line voltage? If so, what are the recommended solution to eliminate/reduce the transient voltage dip in the line voltage?

4 Answers  

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Why we should not parallel the with EB

1 Answers  

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what is the need of capacitor in transmission lines?and how it works.

2 Answers   SCCL,

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Why we have short circuit the secondary of the transformer

1 Answers  

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WHY WE ARE DOING THE EARTHING IN A SYSTEM. SOME PEOPLE ARE TELLING FOR PROTECTION. WHAT PROTECTION GIVE ME THE CORRECT ANSWER.

2 Answers  

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what is AMF panel????????

8 Answers   ACC, Shree Cement,

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