Difference between UPS and Inverter?

7 Answers   HCL,

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why we change the direction of winding in rotor ?how we make the north and south pole?

0 Answers  

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Merits & Demarits of Oil circuit & Air circuit breakers ?

0 Answers   Genco,

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Hello, I am just preparing my self for a university interview and struck on the 11kv ring main unit system network. I just know that ring main unit has total three breakers, fuses and use to supply a power to any load/ building without any interrupt. But i am not be able to visualize the connections, either Ring main unit getting power from two different power sources? or there is always one feeder in complete ring circuit??? I would be highly thanks full of you help me.

1 Answers  

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why should we place 9KV lightning arrestors in 11KV substation ?

9 Answers   DOL, ISRO, Matrix,

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Why control of DC motor is simpler?

0 Answers   BARC,

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what is a composite error in current transformers, why occurs & in which it will occur i.e, either metering ct/ protection ct

0 Answers  

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ohm's law is applicable to DC/AC/Both??

6 Answers   KPIT,

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how does oil cools the transformer

3 Answers   HBL Power Systems,

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What is Surge Capacitor? Why it is require in Generator Circuit Breaker,inspite of surge arrester?

0 Answers  

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how can motor both beasrings insulation resistance can be check?

0 Answers   GE,

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1500Ah VRLA battery,if its weight is designed 125kg during maufacturing its weight is reduced to 85kgs,What will be impact on AH capacity,life & economy?

0 Answers   Bajaj,

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