why the auxilary(starting)winding is provided in single phase inductoin motor?

5 Answers  

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why we used servo motor insted of inducation motor?

1 Answers  

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Just a silly question but just to make my curious mind bac to normal - Why was not 67 and 67N relays built into a single relay as i have noticed that the R,Y,B CT wiring end up into the 67 relay while the common of the R,Y,B CT wiring end up into the 67N relay. Then it was better if a single relay was manufactured just like the distance relay (21). Another question i would like to ask is - how do we know where the 67 and 67 N relay has to be placed.why is it not placed at the transformer bay? In the substaion that i am working -i have noticed that it is placed between a breaker and a common double bus bar and this line bay is connected to another substation at a remote place which is furthur connected to a load. B U S______CT for 67 & 67N ______Breaker _____ remot s/s. B A R

1 Answers  

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what will happen when a electric bulb is connected between two phases.it will glow or not

18 Answers  

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Hod do u calculate cable size for underground laying and the factors effecting/influencing it??

4 Answers   Kuwait Oil Company,

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please tell me formula of 3 phase induction motor under condition{1]when we 3 phase motor starts without load in star or delta connection?thanks

1 Answers  

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What is cogging and crawling phenomenon in motor.

2 Answers   DAE,

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What is thresh hold value of current?

0 Answers  

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Why is transformer core is earthed

3 Answers  

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what is closing resistor in circuit breaker? why it used?

3 Answers  

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what is Touch and Step voltages

1 Answers   Pinnacle,

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WHAT IS B & C CLASS SURGE PROTECTION AND WHAT IS DIFFERENCE BETWEEN B & c CLASS SP

2 Answers   Bharti,

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