what is power ratio between star & delta connection of 3 phase induction motor

1 Answers  

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I have 200 KVA Isolation Transformer for UPS input side. & ups was having 48% load, suddenly got short what will be the reason.

1 Answers   Mukand,

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up to what extwnt of voltage the celing fan works?

3 Answers   ICSA,

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Active power= VI COS FI But incase of leading power factor ( more than unity), may we use other formula ? because the cos fi (value of cos thita) should not be grater than one.

2 Answers  

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pls send link about servo motor

3 Answers  

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If NO contact of relay gets supply from other sources or other part of circuit and at a time relay coil activates,then current will flow in which direction & will it cause to damage relay??

1 Answers  

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what is tpmo switch

3 Answers  

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What is meant by sag?

0 Answers  

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why we are using2 wave trap in a feeder?

1 Answers  

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Explain Need of a starter in a dc motor.? Also explain any two starting and speed control method of dc motor?

0 Answers  

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I want to know the principle of rotating flux transformer.

1 Answers  

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If a contactor need to replace with faulty one. what I want to check?

2 Answers   Bhel,

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