why would the rotor rotate at sub synchronous speed against the direction of rotating flux when d rotor of 3 phase IM is connected to 3 phase balanced supply and the stator windings are shortcircuited ??

0 Answers  

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What is the possible cause for failure of lightning arrestors in outdoor substation under normal condition

0 Answers  

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How to find the length of a Xlpe cable required to transmit 3mva load at 22kv.

1 Answers  

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what is the Transmission line differential protection and why differential protection also have backup Line Distance Protection ?

1 Answers  

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How to specific gravity of battery will check, i didnt saw any hydrometer. & say me how to dip into the battery what are the specifications are given in the hydrometer?

1 Answers  

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What are the test performed on A faulty transformer ?

2 Answers   Bhel,

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IN PLATE EARTHING , PLATE LAID IN VERTICAL POSITION ,WHY HORIZONTAL WHY NOT

2 Answers   Airtel,

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WHAT DO U MEAN BY THERMAL OVER LOAD RELAY& WHERE THEY ARE BUSED

4 Answers   L&T,

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What is the differance between negative dc voltage and positive dc voltage because some circuit uses -24,-5,-12,- 15,volt dc supply

10 Answers   eLab, Hero Honda, NTPC, Suzlon, Teradyne,

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What is electrical energy ,power?

2 Answers   ABB,

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What is the function of under voltage release ?

0 Answers  

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if there is nutral in phase why we use earthing wire and grounding? even at fault condition the fault current flows to neutral (it is a lower path)

1 Answers  

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