why rotor winding in induction motor is not earthed. normally we uses star winding in rotor .why?

3 Answers   Anglo Platinum, TATA,

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An ELHNC 80amp 240v 30mA RCD is tripping periodically, every 30 - 180 seconds is it safe to disconnect the protection circuit?

0 Answers   HAL,

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What is difference between slip rings and carbon burushes?

2 Answers   Hyundai, IVRCL,

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WHAT ARE THE SITE TEST APPLIED ON A SURGE ARRESTORS? DO MEGGER TEST APPLIED ON SURGE ARRESTOR? IF YES THEN WHAT ARE THE ACCEPTED IR VALUE REQUIRED FOR SURGE ARRESTORS FOR VOLTAGE LEVEL 11KV, 33KV, 66KV 132KV, 220KV AND 400KV?

5 Answers  

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what is ferranti effect?

9 Answers  

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WHY CAN WE NOT CHAGE SPEED OF SYNCHRONOUS MOTOR...............................JUSTIFY

2 Answers   ISMT,

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please send the IS strandard for electrical to sakthi_murugan86@yahoo.co.in

0 Answers  

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What is different between resistance grounding system and resistance earthing system?

0 Answers  

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I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

1 Answers  

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in star connected 4wired transmission system ,what happen if the neutral is grounded . or not grounded. which is significant and y

2 Answers  

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what are the factors to be considered while design the breaker either HT or LT??

0 Answers  

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calotropis is an example of the following phyllotaxy

1 Answers   APGenco,

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