What is GNR ? How much value of ground neutral resistance?

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can d.c.transformer exist? if yes then what its max. rating?

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how we can find out the speed of fan without using any measuring instrument

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why ups rating in kva? and why ups are in parellel?.why isolation transformer is used in ups?

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What happen if 200KVAR capacitor continuesly connected to load and all the plant machinaries are not in working?

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what is the use of capacitor in online ups?

6 Answers   Emerson, ups,

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what is the eight bit unit?

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WHATIS TIME CONSTANT? WHATIS ITS SIGNIFICANCE? ILLUSTRATE THROUGH EXAMLES.

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A synchronous motor is operating at a leading power factor .if the applied voltage is decreases ,(the excitation remains constant ) ,the motor current a)increases b) decreases c)remains same d) none of these

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when we put inducter in neuteral grounding of genrator.

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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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why genarator genarating voltage 11 KV?

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