Is there any other method of damping the oscillation in a synchronous motor other than using damper winding and if yes what is it?

2 Answers   IOCL,

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If auto trip is operated, can you close the breaker.

2 Answers   KSEB, L&T, Siemens,

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why ELCB can't work if N input of ELCB do not connect to ground?

5 Answers  

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why field winding is placed on rotor winding not on stator winding in case of synchronous machine?

13 Answers   HAL, TATA,

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how to calculate efficiency of voltage and current controlled welding transformer?

1 Answers  

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what is meant by residual over voltage & residual earth fault ?

0 Answers  

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Bimetal strip used in overload relay what is that,which types of material used for that & percentage.

0 Answers  

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DIFFERENCE B/W NEUTRAL AND EARTH?

2 Answers   Genesis, IBC,

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A 500 V shunt motor runs at its normal speed of 250rpm when the armature current is 200A. The resistance of the armature is 0.12 Ω. Calculate the speed when a resistance is inserted in the field reducing the shunt field to 80% of normal value and the armature current is 100A.

0 Answers   VECL,

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If we have two nodes A and B and Vab is the potential difference between these nodes then which node is called reference node a.node A b.node B c. Ground node

1 Answers  

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In a transformer, the hysteresis and eddy current losses depend upon 1.load current 2.maximum flux density in core 3.type of lamination 4.supply frequency The correct statements are (a) 1 and 3 (b) 2 and 3 (c) 1 and 4 (d) 2 and 4

9 Answers  

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What is the difference between generator and turbo-generator

5 Answers   iGate,

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