Answer / k.prakashchandra

Check the brushes ,as tripping is probably due to unbalanced
current if 2 OCR and EFR protection is adopted

1 HT service how many LT Service

1 Answers  

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1)why the transformer rating in KVA insted of KW 2)why the secondary of ct is shorted and why the PT secondary is open

3 Answers  

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How can we calculate the power factor of an electrical appliance ? Is there any formula ? Is there any meter around to calculate it ? And how to use that meter ? thanks

2 Answers   Essar, Philips,

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3 phase =440v single phase = 230v 2 phase =?

8 Answers   Accenture,

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What is the tests required for a 132 kV, 400 kV , 765 kV for a Circuit Breaker and Power Transformer before commissioning ?

0 Answers   Eprosys Engineering Consultants,

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When we use a multimeter, while checking continuity of a closed circuit , what is happening inside multimeter, how it is working to produce a beep wheather it is closed or open.. is there any internaly voltage/current source inside multimeter?

3 Answers   TNEB Tamil Nadu Electricity Board,

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What is a formula to decide the size of the cable of the star delta motor ( From Contactor to the motor 2 runs )

4 Answers  

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Why we use shunt coil in breaker??????????

7 Answers  

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what is reactive power ? what its role in transmission lines?

3 Answers   Thermax,

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ups battery design formula

0 Answers   Amara Raja,

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what r Grid stations?what r there role.Explain in detail

1 Answers  

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What are the various methods for effecive earthing in a factory in a rocky terrain, where soil resistivity is extraordinarily high? The usual method of 3 m deep earth pits is not serving the purpose.

4 Answers  

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