Answer / k.prakashchandra

The neutral current becomes more than the line current when the voltages applied to balanced 3 phase load , are not equal

IC 741 is opampIC..moreover AND OR NOT ICs also have '74' in them.. why is that number specifically used?

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why we measure output of transformer in kva?

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can any one help me for my ups inter view , list out few basic technical ups question with answer.

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why we step down voltage level from 33kv to 11kv and 11kv to 415v.Instead we can step down voltage from 33kv to 415v directly using single transformer?

3 Answers  

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How to know th details about an electrical Drawing ? Please mention the easy method.

0 Answers   Siemens,

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When a fourth resistor is connected in series with three resistors, the total resistance

1 Answers   ITI,

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in parallel operation of power transformer why the distance between power transformer and capacitor bank feeder is necessary to know

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In a company the lines carrying 33KV but the load is below 10000Volts so we know that <11KV we can put 11KV lines but the lines are 33KV,..so how we can step down the voltage to 11KV with out erecting a substation

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which of the folowing has negative temperature coefficient of resistance? a. mercury b. copper c. lead d. carbon

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what is saturation in transformer

9 Answers   Essar,

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In a power conditoining unit (inverter) of a solar plant when we measure the d.c. current fed by different strings of solar plates to inverter, the current in the negative wire is less almost by 1 ampere to the current in its positive wire say current in positive wire 5 A , then current in negative wire of the same string is 4 A. Since the current entering should be equal to current leaving then why the current is noticably less in negative wire.

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Sir if i have 2kv ups in which 17ah 8 battries load 600watts how much back up time i get and if i put 6kv ups with the same no of battries same amp can i get more back up time please give reply exactly what is the procedure to calculate back up time for different kv,s

3 Answers  

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