why any inductive load need free wheeling diode?

4 Answers   Essar,

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How we check vector group for a Dyn1 transformer?

6 Answers  

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As load in a transformer increases, mutual flux linkage in core= A increases B decreases C not change D first increase then decrease

2 Answers  

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How many types of interlocking use in screw type air compressor,make-Kaser(BSD MODEL)?

0 Answers   Automobile, Siddhi Vinayak,

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what time should we set to come on star contacter in stardelta starter?and for what reason we hav to set such time delay range?

2 Answers  

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Capacitor bank require for 1000amp load

2 Answers   Biodeal, Pharmaceutical,

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while doing the excitation current test on power transformer what is the value of voltage to be applied? Nomonal rated voltage or 10% of rated voltage? Is it necessary to apply on high voltage side?

1 Answers   ACC,

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what is diffential relay? testing proceure?and transformer reach Over load thet time differencilal relay operate or not ?

5 Answers  

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1.Can anybody explain Why starters are not used for motor starting in industries? 2.

7 Answers  

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Is it possible to interlock between ACB & MCCB?

2 Answers   Areva,

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What is the Total Power generation Capacity in India at present ??

20 Answers   Bhel, College School Exams Tests, IBM, NTPC,

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VCB in closed position during opertion if vaccume break then what will happend? it has any protection ?

1 Answers  

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