Answer Posted / jitesh

rating of contactor depends upon amp. carried out of
motor.& it is 1.7 times the motor current.

Explain the operation principle, advantages and disadvantages of the following converters: a) A 12 pulse converter b) A Switch-mode inverter c) A thyristor inverter

2121

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What is the type of feedback used in an op- amp schmitt trigger?

1059

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What is the main use of rotary phase converter ?

1213

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How can we calculate the transformer rating if the load calculated is 1000KW (11Kv Supply)?

1133

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what is meant by tranformer impedance?

2651

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I have a current transformer with 1 main reading meter with transformer outside the building and a control panel having 5 CT reading meters with black round coils inside the building. I want to know, A) when current pass through the Transformers, will the current be reduced or be the same and after that B) when current pass through the CT meters with black round coils, will the current be reduced or be the same. C) in the above process will the reading of the main meter be same or different, from the total reading of all the 5 CT meters.

1882

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how wecalculate breaking capcity of acb mcb mccb .explain with example

1983

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If a air condition consume 2.50 to 3.00 amp then how much it will consume in watts if it is running 10 hours out of 24 hours????

1914

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what is per unit calculation?looking for simple and strong explanation thk u

2945

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Why an ac systems are preferred over dc systems?

1154

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why the pf of semiconductor device is improved the electrical devices

1886

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How to test lightning Arrester?

978

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What is the formulae of Megger value for a A.C.Motor

2963

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How to protect a Dosing pumps/any sensitive equipment (single phase) from surge protection inside a food factory.

1793

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Explain Circuit Breaker Trip Characteristics in detail.

2186

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