if flux and load static in dc motor and supply voltage increases 20% then what happened in speed

0 Answers  

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How to design power source say 5KW i/p :415v 3 ph, o/p 5KW constant, variable currnt and variable volatge 10-230v,

2 Answers  

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As we know diode work on both negative and positive but converting ac into DC we have to given a/c from negative of diode or positive side.please give me answer.

0 Answers   cpgn,

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A T-T transformer can not be parallel with transformer A V-V B star-delta C star-star D delta-delta

1 Answers  

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in a distribution board,if we have a load and we have selected a cable after making all calcs (Deratings and V.D , ect...) the cable we have selected was 10mm.sq. now, shall the internal cable inside the switchboard should be 10 mm.sq Like the external or it can be Less???? if somebody have an specs or information he can help D:

1 Answers  

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hi i m going to attend bhel interview on 22nd sep 2008 for ET(electrical engineering).pls guide me how to prepare for the interview.i am a fresher.

1 Answers   Bhel,

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what is importance of ka in mccb

2 Answers   ABB,

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WHAT IS NORMAL VECTOR GROUP USED FOR DESIGNING OF TRANSFORMERS??

0 Answers  

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what iz second and fifth hormonics please explain

1 Answers   Satia,

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why the Different manufacture's rating of Gas genset are different? i.e : cummins genset rating is in KVA .( 625kv). While GE- Jenbacher make genset have rating in Kw. (625 kw)

1 Answers   L&T,

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why open circuit test is conducted on hv side and short circuit test is conducted on lv side of a transformer ?what is the reason for it ?

3 Answers   HCL, NTPC,

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what is humming noise and wha is the reason to develop humming noise in a mv pannel ?

2 Answers   HPL,

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