Answer / kunal

by varying the voltage
as per V/f ratio

Answer / sss

frequeny of a transmission line is varied by changing the synchronous speed of the generator.....which is affected by the equation syn.speed=(120f)/p...so the frequency of the transmission line is varied by changing the poles of the generator...........
however the frequency cannot be maintained as a constant one throughout....it has a slight variation of +/- ...but if there is huge variation the power station tries to decrease/increase the load there by maintaining the frequency as a constant one

what type of load we can give to motor shaft?

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How can i learn to programme every VFD. Or is there any typical study to understand VFD programming.

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what is the difference between RCCB and ELCB?

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What is the latest generation of circuit breakers called?

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If the (Motor control center)Panel work on field the relay used in panel in the case this will be damage and no indication provide on panel.fault occur in panel and MCB will not trip. how happen the relay damage in panel and what effect of panel.

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why the manufacturer provide M and C terminals ? why they will not internally short them ?

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How you will determine the volume of oil in a particular Distribution transformer.

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is it possible to convert electrical energy to light energy for transmission purposes?

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which type of starter is suitable for single phase motor ?

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