Answer / lakmal

when running the motor in star cnnection it will take high
current.but it running in delta it will take low
current.why P=TW .P=power,T=torque,W=anguler velosity

Answer / muhammad tahir khan

because instart for motor, we need high current ,for that
purpose we use delta instead of star. Another reason is
that delta connection control the harmonics and increas the
motor life, also we can use star but by using star the
efficency of moter will decrease.

Answer / robbin singh

The most of HT motor are in star conection and some of
slipring motor are also in star conection.

why the the phase transformer's nuetral has been grounded

2 Answers  

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When both contractor star & delta is hold in star delta motor ?? So what happen in this case ??

1 Answers  

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Hi Friend I am used multimeter to measure the voltage between R Phase(SS1) to R Phase(SS2). In SS1 is connected with UPS loads. But I am getting voltage between these 2 R Phases. Please give some idea friend

0 Answers  

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For load of 1 nos 3 TR Air Conditioners,6nos of 60 Watt Tibe Lights, 2 nos 200 W Outdoor Lights,1 no Coffee maker.All may work at the same timehow do I select DG Set Rating ,pLease advise the calculations

1 Answers  

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When a square wave is applied to primary of a transformer then what will be output wave form of secondary ?

0 Answers  

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how we can check new PT ? without name plate.

1 Answers   Indo Power Projects,

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what is the difference between main meter CT and check meter CT?and what is the difference between main meter PT and check meter PT?

2 Answers   Tesco,

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What are the components ofan HT panel in a 11kv power station?

2 Answers   Reliance,

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How we can calculate the Amps for the cable Ex:- For 1sqmm wire how many amps we can draw (calculation)

0 Answers   TATA,

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How can I calculate ISF of current transformer?

0 Answers   Cigniti Technologies,

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What happen if 1200KW/1500KVA alternator runs at no load and high R.P.M.for one minute?

6 Answers  

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why on delay timer used for fully automatic star delta starter?

0 Answers  

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