What meant by lagging and leading? When if they are occurred what preventive methods should be taken?

14 Answers   ABB, L&T,

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how would you come to know if a transformer is double wound or auto? note that there is no tag. you are given only a multimeter.

5 Answers  

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What is reverse power relay?

0 Answers  

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Draw the vector diagramme for Asynchronous Induction Generator at noload,half load and fullload.

0 Answers  

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specific gravity of a battery?

6 Answers  

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Why 1/3 is used in symmetrical components?

0 Answers   ABB,

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what is form factor

2 Answers  

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What is difference between slip rings and carbon burushes?

2 Answers   Hyundai, IVRCL,

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how ups works ? various parts of ups and working principle

0 Answers   Serco,

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what are the protection relays for trasformer

3 Answers  

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Why the Transformer connection is changing in different transformer?(Like Star & Delta,Delta & Delta,Star & Star,Delta Star) From that connection where it is used?

2 Answers  

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what is the calculation method to design core and winding of a 200kva 3phase distribution transformer?

0 Answers  

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