why DC current not used in Transformer action?

17 Answers   Engineers India Limited,

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how the diesel generator maintain the rpm when the generator loaded varies from 10% to 70% immediately?

3 Answers  

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how single phase preventer works ?

0 Answers  

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explain the meaning of harmonic resonance

0 Answers  

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how to calculate the battery Ah? what is the formula.

10 Answers   Cushman Wakefield,

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How to calculate the 2500 Kva Transformer losses Primary 11KV Secondary 415volts

1 Answers   Laurus,

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what is the means of dedicate earthing?

2 Answers  

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what is the transformer rush current?

0 Answers  

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how we calculate the short circuit capacity of the busbar in LV & HT?

0 Answers  

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how the testing of protection CT Testing done through Primary injection kit please describe in detail procedure...

0 Answers  

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11. As per the theory current doesn’t flows in Neutral, but practically it is not applicable, explain why? 12. How to take the Vector Group Test in Transformer? What is the purpose of doing Vector Group Test? 13. Why the transmission lines are in 11kV, 22kV, 33kv, and why not 10kV, 20kV, 30kV? 14. Why do we generate 3 Phase AC Supply? It is possible to generate 4 Phase and 5 Phase explain it? 15. Explain why the Voltage drop will happen in 3 Phase line? 16. What is the equipment used to control the generator output? 17. What are the factors to be considered during the Synchronization? 18. What should be value of Circuit breaker operating time and tripping time? 19. Why the CT Secondary is rated as 5A generally? 20. At which time Synchronous generator act as a Synchronous Condenser?

1 Answers  

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why voltage form factor of PT are increase , when it is ecpected heigher spikes in system. how it is calculated.

0 Answers   HAL,

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