i need the curve duty cycle and amper for (150 kva @50% dyty cycle) transformer turn ratio :19 and vin 400

0 Answers  

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What is rated value? is it phase values or line values?

1 Answers  

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How to calculate % Impedence?

3 Answers   ISRO,

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How to design power source say 5KW i/p :415v 3 ph, o/p 5KW constant, variable currnt and variable volatge 10-230v,

2 Answers  

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What is the full form of CNC in electrical mechines.......?

1 Answers   Alstom,

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in ring main system we use the isolater b/w transfer bus and main bus if we r not use isolatar than wat will be the effect in our sys.

0 Answers  

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Why generator is not connecting in delta ..why connecting in star ?

4 Answers   Bhel, Foretec Engineers,

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what is restircted earth fault relay,how it works? what is diffrance btwn normal earth falut relay & restricted earth fault relay?

1 Answers  

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if AVR fails in alternator. what will be the effect.

13 Answers   HP,

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why various test are performed on electrical panels & power cables before commissioning on site & what are these test???

0 Answers   Lavasa,

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what is the procedure for three phase motor differential relay testing can it do with single phase test kit?

1 Answers   ABB,

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please send me previose rrb junior engineer qustion papers

0 Answers   RRB,

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