sir i applied for hpcl(electrical).i want to know from which subjects most of the technical que will b asked.and pattern of the written test.pls help me

0 Answers   HPCL,

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in ONAN type transformer winding temperature is lower than oil temperature at evening time but morning winding temp is higher than oil temp what is the reason?

2 Answers   Areva,

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If we have to find the inductance of a dc shunt motor then by giving dc supply or ac supply and what is the reason for it. (this example is from "to determine the transfer function of a dc shunt motor ")

0 Answers  

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why voltages are multiple of 11 or 1.1???describe with derivation plzzz.thanks

2 Answers  

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WHAT IS DIFFRENCES DCS & PLC

1 Answers   Essar,

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working principles of cf lamp,incandescentlamp and f lamp?

0 Answers  

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Why generating voltage is limited up to 22kV?

4 Answers  

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IS diode and blocking diode are the same?..what is meant by blocking diode

1 Answers  

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what is the carona effects meaning in HT line transmmission system

0 Answers  

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1 hp is equal to how much watt?

0 Answers   Blue Star,

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We are preparing another project which involves Waste heat recovery from a 1 MW GE Engine. The Engine in particular gives out flue gas at 487Deg C with a flow rate of 5650 kg/hour and this can be cooled to 180 Deg C. This gives a thermal output of ~ 594 KW that is available for input to VAM via heat exchanger / boiler. Additionally 581 KW will be available from engine jacket water (temperature profile 80/ 80 Deg C and a flow rate of 50m3/hr) Our estimation is that 300 TR of cooling is possible with a suitable VAM machine(s). Please advise what is the most suitable arrangement with maximum TR and min Capital expenditure. plz reply me as early as possible

0 Answers  

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describe the Operation of induction generators from bus bars

0 Answers   AMIE,

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