If we impress a dc voltage of 230 V on an unloaded 230 V, 50 Hz transformer it wi A give high secondary voltage B burn out C give secondary voltage as per K D none of these

1 Answers  

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How to calculate of maximum demand if given 628kw, 785kva, 0.8 p.f.

0 Answers  

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we convert 66kv to 33kv then 33kv to 11kv,11kv to 440v.why not we convert directly from 66kv to440v?

7 Answers   HCL, L&T,

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We are using 4 MVA transformer and we provided 2 separate earthing pit for Body and 2 separate earthing pit for neutral, can we connect separate body earthing pit to other earthing pit (Equipment earthing)?

1 Answers  

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i want to learn control schedule for 11kv panel? can any one send the detailed control schedule?

0 Answers  

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can we use 3 phase UPS for Motors and Other Machines

4 Answers   ACC,

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The ripple frequency in output of fullwave bridge rectifier is a. Half the input b. Twice the input c. Same as input

0 Answers  

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what is the difference between PLC and embedded system

3 Answers  

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how to calculate the current carrying capacity of a conductor. How it is related to diameter of cable or conductor

3 Answers   AGC, BARC,

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how fault in an electric system is detected & hw protection of equipments is done ?

6 Answers   NTPC, RLY,

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What are the starting currents of different motors and also what are the running currents, and idle currents?

6 Answers  

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an ac induction motor gets overheated when operated at a low frequency of 25 hz a instead of 50 hz. reason?

1 Answers  

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