In all the generators, the excitation supply is DC. What is the significance of DC excitation? What will happen if AC supply is given as excitation supply?

2 Answers  

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how to reduce the transformer size in ups ?

2 Answers  

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What are the protections required in the main lt panel which is connected to the transformer.

1 Answers   Ispat,

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In what condition the HT fuse breakes?

0 Answers  

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how does oil cools the transformer

3 Answers   HBL Power Systems,

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what is the distance b/w EHV lines? 1.8m 2.11m 3.4m 4.14m

7 Answers   HAL,

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Why we use 2core cable for Dc motor.Can I use 3core?

5 Answers   JK Paper, Maharaja Whiteline,

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What is the meaning of electricity? How it is being produced? Can we store the electricity? When we produce electricity what is the capacity of voltage current we are getting? If we need 440 volts how to get it? In case, if we want lower than 440 volts how to change it? Please answer?

1 Answers  

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How to calculat the ratio of HT\LT in energy meter

0 Answers  

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Can Superposition theorem be applied to AC Circuits?Can Thevenin's Theorem be applied to AC Circuit too?

6 Answers   HCL, NPCIL, Shivam, Vast,

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what is the meaning of harmonic in AC waves and when which are prduce and what is the effects on line and give any other information about harmonics

1 Answers  

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Circuit diagram of tube light without starter using electrical choke

0 Answers  

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