what is Electrical BMS

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RESPECCTED SIR/MADAM- I AM PRERING FOR SECTION ENGINEER (ELECTRICAL) RRB CHANDIGARH PLEASE SEND ME SOME PREVIOUS YEAR QUESTION PAPER OR MODEL PAPER.MY EXAM IS ON (30- NOVEMBER 2008).I AM VERY THANKFUL TO YOU. FROM- HARENDRA SINGH YADAV

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can we use IGBT as a AC-DC converting device in the applications?

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How much allowable difference current between on three phases Dear sir, We have a 1870 KW HT motor, 11 Kv supply,FLA-120A,2870 rpm,2-pole squirrel cage induction Motor.And stator is connected in star connection with Liquid resistance stater to limit the starting current.It has coupled with Centrifugal air compressor.My question is it is loading 73% of FLA taking R-phase 86.7 A, Y-phase-85.4A,B-phase- 78.3A.why the B phase current is that much of difference.Is it allowable, or any one tell me how much allowable current.If any method to calculate.

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i installed 100kva ups. what KVA genset they should provid in input side? plz any update formula or ans with reason.

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3 phase induction motor rotor field rotate at synchronous speed w.r.t ?

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CONSIDER A 415V/200V STEP DOWN TRANSFORMER.CAN WE USE USE IT AS STEP UP TRANSFORMER BY GIVING 200V IN SECONDARY AND TAKING OUTPUT FROM PRIMARY?

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What is Harmonics how it is produced and what is the method to control the same

0 Answers   Siemens,

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What is meant by regenerative braking?

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why ahould you show client/engineer activities clearly on the project plan

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Can any body tell me about partial discharge test, and why it is necessary and its procedure

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what is the simple meaning of harmonics?

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