how to make parrallal ups

1 Answers  

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. Draw the vector diagram and condition for the following: 1) Dyn1 2) Ynd0 3) YnYn0

1 Answers  

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what is post close & pre close of trip circuit supervision relay in circuit breaker control scheme?

2 Answers   ABB, NEK, Power,

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How to select circuit breakers rating eg. if i select a circuit breakers of capacity 40 amps DC with operating voltage 28 volts and if i what to use same circuit breakers for 300 Volts DC application what is the current rating of this circuit breakers.

0 Answers  

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How to calculate the current carrying capacity of sized cables, and there is any formula. please send to 'than.achu@yahoo.com'

1 Answers   Blue Star,

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Why 9KV surge arrester having 7.65KV of MCOV?

0 Answers  

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what is torque & how it will produce & what is the formula for that.

2 Answers  

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What happens if fuse is connected to neutral wire

9 Answers   HAL,

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Details about Flux Compensated magnetic Amplifer starter for motors

0 Answers  

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When a 25kV line touches the train, will passenger get shock?

3 Answers  

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how to calculate the step resistance for slipring induction motor,how you deside the no of step for that?

0 Answers   ABB, Visa,

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What are the different types of controllers?

0 Answers  

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