what is (+) and (-) in generator field detector stand for?

0 Answers  

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why the rating of dc generator is in kw where as rating of alternator is in kva?

3 Answers  

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I have raw material for making Compact-Choke for flourscent lamp of 40 Watts. We are suppose to get 0.4 amps output at end. but we are getting 0.42 or 0.44 amps and above. We have done many testings in different but nothing worked out. Please suggest me how to get the correct output. We are using 1. core winding of 700 windings of aluminium 2. E-shape iron fillings and I-shape iron fillings to surround the winding.

6 Answers  

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hopkinson's test

5 Answers   Bhel, NTPC,

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1)How much current can a 3-1/2 core 100 mm wire carry? 2)What are the special cables required for explosion proof wiring? 3)In case you do not have coal and salt for earthing, how can you achieve good temporary earthing? 4)One horse power single phase motor is more likely to get hot than a one horse power 3 phase motor. Is it true or false, if true why? 5)What are the different types of soft starters for large motors?please explain?

0 Answers   TATA,

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how to find 5 kilo meter long under ground 33 kv cable fault location if IR VALUE shows 0.05 M ohm @5000 volt.and cable fault locator shows some time fault distance 3 kilo meter ,3.7 kilo meter and some time 1 kilo meter? now how to find the fault location that where is leakage.

1 Answers   FGI, OPS,

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In DC motor,the field MMF is given by NI.N-no.of field winding turns,I-excitation and both are constant.Then how could the main flux decreases due to armature reaction.

4 Answers   Bhel, IBM,

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what is the importance of creepage distance in disc insulators

1 Answers  

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auto reclosing scheme for radial ehv feeder is to be implemented or not?

1 Answers   State Board,

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what is circuit breaker in transfomer and where it used

0 Answers  

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Baud rate is used to descrice...?

2 Answers  

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What is meant by Energy Efficient Transformers??? give significance

1 Answers   MahaGenco,

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