Answer / jai

To the point, when motor starts using DOL it takes 6 times
its rated current to just start. while in Star-Delta
starter its starting current reduces to one by root three.

Answer / basith

In a DOL starter motor terminals is directly connected to
starter such that initially a very high starting current is
feed to drive the motor.Dol starter is used for small
motors below 5hp because of high starting current may
damage motor winding. Dol starter using for large motor
using star delta connection,first motor run on star
connection mode upto 80% which provide low starting current
and low torque initally and after getting maximum torgue
motor operates on delta mode with high torgue.

Answer / jagdish

to woh much hp motor we will use stare delta

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0 Answers  

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Briefly define and explain the following different types of Pulse Amplitude Modulation (PAM) with some examples. i) 2-PAM ii) 4-PAM iii) 8-PAM iv) 16-PAM v) Quadrature Amplitude Modulation (QAM)

0 Answers   UOG,

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suppose a fan is running with phase and neutral. if its neural is touched to body. then fan get stopped. if this fan is connected to phase and ground supply..then why it runs?

1 Answers  

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What is a compensator?

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diffrence between abcb and mocb

1 Answers   UltraTech,

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What Happen When We provide Dc Supply to Ac Motor

6 Answers  

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Which motor isused in indian railway system?

3 Answers  

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In India the supply voltage is 230 volt A.C. During the negative half cycle phase becomes neutral and neutral become phase? or what will happen during negative half cycle? how the electrons flow during positive and negative half cycle?

0 Answers   ITI,

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which of the following is the earliest known literary source of ancient india and indeed of mankind

1 Answers  

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WHAT IS MEAN BY MAGNETIC LOCKING

3 Answers   Bhel,

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what is the mager value of star motor and delta motor between phase to ground and phase to phase, and minimum how much should be value ?

1 Answers  

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