In a synchronous motor armature current flows due to revolving flux which in turn rotates the load,but in no load condition armature current is zero hence thr is no revolving flux then how motor rotates?

9 Answers  

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what is meant by twilight switches 7 where its applicable ?

0 Answers  

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IF we have 500kva transformer 11.0/0.415V, 50Hz. How to calculate the current on HT & LT side, how can we consider for its breaker (HT & LT both)? You are requested to solve the question herewith.

3 Answers   Bhutan Power Corporation,

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what is rotatng magnetic field in case of three or multiple phase alternating current machines???

1 Answers   NHPC,

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how can we can take BDV test in transformer?

5 Answers  

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How to calculate phase to phase difference ?

0 Answers  

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400kw, 3.3Kv motor want to fix 1000km away from substation. What is full load current? and what is the cable size for motor? I amp expecting answer and advice from your side.. thanks...

4 Answers   Kuwait Oil Company, Weatherford,

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We have 2 11kv/433v transformers for 2saperate acb for mv panels and 1 bus coupler acb. Suppose I’ll close bus coupler what will happen or it will be share the load. Please suggestion and any modification required.

1 Answers  

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What is milivolt dop test in Busducts? What is its significance & procedure to do the test?

0 Answers  

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how to understand the controling circuits example star- delta-starter controling daigram please let me know

3 Answers   GMR,

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who can measure the size of power cable?

0 Answers   Chanar Sugar Mills,

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why 5kW motor becomes unbalance if its relay trip 1st time and its set value is 7.0 A

0 Answers  

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