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why the starting current of a motor is high?

iniatially the motor don't have any backemf so motor draw
high current at the starting stage. whenever motor is
started it generates backemf so motor takes normal load
current.

 Is This Answer Correct ? 12 Yes 1 No

The synchronous machine excitation system explain

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How wire size can define in electrical wiring? What is the ratio?

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Sir, My doubt on cable sizing calculation, Load:74 KW calculated cable 1 run 50mm2. Now client asking us to reduce cable size by increasing runs. Sir, My question now when my mind strikes with 2 options 1) Divide load 74/2 = 36 and calculate cable for 36+36 making it 2 runs or 2) Simply i can divide 50mm2 /2 ie. 2 runs of 25mm2 Please suggest me sir

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how to select rating of HT Panel

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nwhat are the main Components of servo motor?

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how a resistor resists to flow the current?how an inductor oppses the sudden change in current?how a capacitor opposes a DC voltage.

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How many gap between finger contact in a.c.b. and v.cb.?

310

how to determine motor size for a fan application?

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please anybody help me to find out the BHEL trainee Exam previous year questions papers . if u ve pls. send it to surekhared@gmail.com

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Can anybody tell abt concrete encased earthing or grounding?

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what are the reasons of CT circuit faulty in busbar protection scheme?

568

if we run a 3 phase machine on two phase what will happend??? given answer with solid reason please

1218

What Is Sampling?

277

USE OF 8 WAY PAN ASSEMBLY

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hello friends.. I have a doubt regarding the operation of dc machines.. I studied in a text book that a dc machine can be used as a generator and as a motor.. is this possible? If so,please send me the info about this topic.. you can also send your info to my mail.

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