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Why is it that variation allowed in supply voltage to
motors is (+ or -)10 %, whereas that in frequency is (+ or -
)5 %
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Answer Posted / shriram.....
For the motor we are not using ups power supply
In ups power supply, we can maintain the voltage as well as
frequency.
But we are using raw power for motors in plants.
Eg if I we are using some load. Now I getting 415 volts at
full load if I reduce some load any reasons then voltage
will lightly increase so voltage will not stay constant.
For that reasons operating voltage +/- 10 %
Shriram....
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