Answer / k mutyala naidu

by using three point starter we cant control(different speeds) the speed,but by using 4 point stater we can control the speed of the motor.

Answer / sheikh

3 point starter used to make and break the only for phasees
like Red , Yellow & Blue phase. and 4 point starter used to
make & break the 3 phase and Neutral also . 4th point may use
for make & Break the neutral of given circuit

Answer / shiva

high current in four point starter

What is bode plot?

0 Answers  

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as we know that N=120f/P speed of an im can be controled only through changing no if poles, can we control by changing the frequncy????

7 Answers   JSW,

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What is meant by stator? What is meant by rotor?

0 Answers  

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why a single phase induction motor has poor power factor

0 Answers  

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why transformer cannot rotate though the princplebehind induction motor is similar to a transformer?

2 Answers   GE,

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If i connect aload to phase taken from one transformer and neutral from another what will happen.

2 Answers  

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If I want to connect a capacitor bank on the HT side of a 11kV/415V, 3 phase delta-star distribution transformer to supply Reactive power to it..what practical specifications of a Capacitor bank that can i've??please reply..

0 Answers  

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What is an Automatic Voltage Regultor & what is its use? What are the general componets we use to design an Automatic Voltage Regulator..What are the factors to be considered for its design?

3 Answers  

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which of the folowing has negative temperature coefficient of resistance? a. mercury b. copper c. lead d. carbon

2 Answers  

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while we select CT, why the CT ratio is divided by 5?? ex:250/5,15VA,CLASS-1 CT.Why it is divided by 5??Help me please

2 Answers  

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What is the temperature and cooling aspects of dc motor

1 Answers  

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what kind of motor is used for lifting applications

5 Answers  

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