Answer Posted / rasagnya reddy

1.stator resistance starter,
2.Auto resistance starter,
3.star-delta starter,
4.Rotor resistance starter,and
5.Direct-online starter(DOL).

in battery charging room we find two fuses (one in positive other in negative cables ).why it is so?one fuse is ore than sufficient?

1801

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HOW CAN WE DECIDE THE SUPPLY VOLTAGE FOR MOTOR ACCORDING TO ITS RATING(IF ANYONE KNOWS GIVE IT WITH EXAMPLE AND ITS CALCULATIONS)

1506

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quantizer means?

1487

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how to identify conection leads of an unknown electric motor

1552

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why do we measure VIBRATION in -24vdc and why we adjust gap voltage -9vdc to 10-vdc? i am trying to get this information since 5 years, yet i haven't get reliable answer, i hope i can get from you.

1406

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Why water bubbles when D.C. Current is passed through it? Why not when A.C. Current is passed?

1670

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solar energy light efficiency & disadvantages?

1564

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Why reactive power is needed in a power system? How is it being absorbed or delivered by alternators? For reactive power control we are changing excitation but reactive power absorbing or delivering related to stator. How these two are interlinked? i want a detailed explanation with necessary expressions and figures?

1395

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Dear all i am kumaravel. now in chennai. my work is control and relay panel auto cad designing.up to 11kv to 400kv then question is i am improving my knowledge. i want some books name and auther are available for this C&R panel related. plese any one help me

1370

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What is resistance of 50meters, 16sq.mm, single core copper cable?

1441

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How much earthing frequency is capable?

1573

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Explain the operation of variable frequency transformer?

666

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What is cable tray, its type, and its support?

665

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what is proper capacitor placement? How to evaluate capacitor size?

1638

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why any centrifugal blower draw more current in starting. consider id fan and fd fan?

1363

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