Why starters are using the machines???

5 Answers   Alstom,

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what are the safety in transformer,diesel generator,ups, chiller plant,h.t. , L.t. , sewage treatment plant(stp),water treatment plant(wtp), fire. plz ans. me in detail if you know any of the mention above. i urgently need

2 Answers   Claris Lifesciences, EFS,

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For electrical designers what are the standard should know? i want learn about this standards. how to get information/reference. anybody help in this regards please.

0 Answers  

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why we r not earthed Control cable of C.T. terminals

0 Answers   HCC,

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what is the relative size of single and three phase?

0 Answers   Student,

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what is the function of a Master trip relay? why is it used ?

5 Answers   ABB, Nissi Engineering Solution,

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Does the direction of rotation of d.c. Shunt motor would get reversed if the armature current and field current both are reversed?

0 Answers  

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What makes the difference between 50Hz supply and 60Hz supply which one is economical? What is the use of using increased frequency?

5 Answers   ABB,

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Why DC current is not used in transformer?

20 Answers   JK Paper, TCS,

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Why we transmit the power at the voltage in the multiple of 11 or 1.1 like 11kv, 22kv, 66kv, 132kv...... some one told me that it is due to fomr factor 1.1 of sine wave. its fine but while transforming we can choose any voltage, so why only multiple of 1.1 there also.......? plz tell me.

7 Answers  

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I want to know how to calculate the size of electricity cable in building?

0 Answers   DR Engineering Services,

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why potetial transformer primary ground?

1 Answers  

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