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What is the result of under frequency to the system.
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Answer Posted / sivagurusgs
based on the V/F if frequency is less there is some
unbalance voltage flows through it(over flux occured) it
will cause the motor to run slowly and whenever unbalance
condition occurs the motor will take unbalance load so the
winding will be heated and thermal losses occur.s if v use
the relay to rectify this problem. Use overflux protection
for motor and overcome this fault. whenever frequency or
voltage gets unbalanced the relay will trip and isolate the
motor from the fault.
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