Answer / ravikumar.g

The Direction is changed for the Induction Motor for
changing the two Phases.

Answer / sunil guru

the direction of rotation of I.M is changed by changing the
polarity of any 2 phases......

Answer / hameed

in 3 phase we change 2 phase & in single phase we change
the end of starting coil

Answer / b. janardhana rao

In 3 phase induction motors we want to change direction of motor any one of 3 phses polarity we will change automatically change the direction. Example. RYB we change to rby or yrb.

what is linear motor?

2 Answers   Lucas TVS, wbsedcl,

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IF ANY MATERIAL AVAILABLE IN MARKET FOR MOTOR PROTECTION INSTEAD OF OLR & CONTACTOR ?

1 Answers  

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why DOL starter is use in induction motor as it is not reduce the starting torque

2 Answers   Maruti Suzuki,

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check list of maintenance of transformer?

11 Answers   ABC, Cosmos, EPRON, Essar, Godrej, Hescom, Infosys, KPTCL, TCS,

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A 3-PHASE TRANSFORMER IS USED TO STEP-DOWN THE VOLTAGE OF A 3-PHASE, 11KV FEEDER LINE. PER-PHASE TURNS RATIO IS 12.FOR A PRIMARY LINE CURRENT OF 20A, CALCULATE THE SECOUNDRY LINE VOLTAGE, LINE CURRENT AND OUTPUT KVA FOR FOLLOWING.A)STAR- DELTA.B)DELTA-DELTA.

0 Answers   Ispat, Red Bull,

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out of all machines which have highest efficiency and why?

2 Answers  

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How to calculate the cable size in sq. mm. when the load is given in KW?

3 Answers  

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any body know about lighting arrestor. how to determine the height of lighting rod from top of bulding and how many area it cover.

1 Answers  

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what are the effects on an power plant and consumers if the power factor is increased or decreased?

2 Answers  

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what is mean by derating factor?

4 Answers   Essar,

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Hydro P.P. run @ 600 rpm,8pole, Nucler P.P @ 1500rpm 4 pole , ThermlP.P @ 3000 rpm 2 pole.Why this diffrence??? when we can generate electricity @ 600 rpm then Why we had incresed speed in NPP & TPP???

3 Answers  

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how to check the stabilty test for generator differential protection

1 Answers  

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