single phase 230v three phase voltage 415volt why we aren't used line voltage 690v?

7 Answers   Citec,

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What is the advantage of AC supply?

5 Answers   PSU,

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how 650 volts creates? where is use?

0 Answers   DCL,

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WHAT ARE THE FACTORS REQUIRED FOR SELECTION OF TRANSFORMER RATING?

13 Answers   Tech Mahindra, Technip,

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what is the difference between ac drives and dc drives?

1 Answers  

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what is the question paper model for section engineer in RRB

0 Answers   RRB,

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difference between the earthing,grounding and neutral

1 Answers   DLF, L&T,

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hello if any one have papers vof hpcl or sail, plz send me

0 Answers  

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why 6.6,11,22,33,66kv? what basis they have considered?

5 Answers  

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what is bjt & mosfet? what is rectifier & diode?

1 Answers  

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Dear sir please mera ye sawaal hai ki rccb ka kya kaam hota hai please answer hindi me dizyega dhanyya waad

1 Answers  

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can anybody find out the result. I am lil bit confused about my equation.

1 Answers   Student,

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