what is the formula to find battery back up of ups?

3 Answers  

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what is grounding & what is the value of groumding rod 2.5m?

3 Answers  

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How would you supply a single house hold load from a 3-phase supply coming out of a sub-station?

4 Answers  

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can we choose current transformer secondary, to calculate residual flux in a power transformer, so as its saturation is close to the saturation level of power transformer?

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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

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List advantges of active filter over passive filter?

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To generate electricity , what is the speed of rotor?

1 Answers   JEC,

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Why not LED burn after showing alarm,as Alarm volt is 11- 13,But LED is of3 volt,why it isnt Burn??

1 Answers  

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a voltmeter shows 100v..wat is to be done to make it read 150v.

7 Answers  

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why breather cap filled with oil?

7 Answers  

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how does a shunt reactor maintains the bus voltage???

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Please tell me if you are electrical engineer,and you are appointed for the maintainance of Electrical Power plant,then which parts of the plant deal with you.Also tell how these parts/components work.

1 Answers  

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