why do we prefer -48 volt instead of -24volt or -12 volt etc. ??

1 Answers  

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what is first pole to clear factor

1 Answers  

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Three phase star connected PT transformer primary side one phase fuse is blown what will be the output in secondary side(Secondary side also three phase star connected)

1 Answers  

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Between rotating armature type and rotating field type arrangements which one is adopted for large rated alternators and DC generators.Why there is difference in the choice?

1 Answers  

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1.why motor rating in kw instead of KVA? 2.why alternators rating in KVA instead of KW?. 3.why transformer rating in KVA instead of KW?.

6 Answers  

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List few applications of d.c series motor?

0 Answers  

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what do u mean by starting torque? how it should be for a good motor? what is the relation between starting torque and power factor? What is the relation between efficiency and starting torque?

2 Answers  

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why supervision relay is used in incoming feeders?

1 Answers  

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why knee point voltage should be high in Ct for differential protection

1 Answers   NTPC,

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Is voltage & potential transformer are the same? Are they used for same application ?

11 Answers  

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11kv = LT 440v , how many amp.supose 440v side 5000 amp curent drown

2 Answers   Motwane,

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what is breathing?

0 Answers   PWD,

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