What is notching in dc machine?

0 Answers  

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Why the suply frequency in INDIA is 50HZ

2 Answers   HCL,

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What happens instead of using 3 phase, if we give loop of single phase to all three phases ??

1 Answers  

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how much earthings are provided for 22KV HT Metering Kiosk

1 Answers   GE, Gionee, Knight Frank, TATA, Vacmet,

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what is the difference between interconnection and intraconnections in the circuit diagrams

0 Answers   NTPC,

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I have a transformer whose primary operates at 230V, 50Hz for which the secondary voltage will be 12V, 50Hz. What will be the secondary voltage if the primary is fed with 400V, 8KHZ Signal?

6 Answers   ABB,

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can someone explain that how the speed of the protection system affects the fault level calculation?

0 Answers  

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what is the working of air compressor.

5 Answers  

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What will happen if i connect two 3-phase tranformers secondary supply on one bus bar that is R-Y-B-N?

2 Answers   GMR,

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What is the exact formula for one weber of magnetic flux?

0 Answers   Bhel,

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How is the air circuit breaker quenching the arc. If it is by air means, where is it come from?

1 Answers  

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how did the differential relay work to protect the power transformer

4 Answers  

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