Supose we have one 220v A.C fan.if we provide 220v D.C what
will be happen?
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Answer Posted / a.kossay
IF THIS MOTOR IS A UNIVERSAL MOTOR SO IT CAN WORK BUT THE
DC VOLTAGE LIMIT MUST BE DECREASED TO VALUE THAT WILL
SUPPLY THE POWER RATINGS OF THE AC POWER SUPPLY, IF THE
MOTOR IS INDUCTION MOTOR IT WILL NEVER WORK BECAUSE THE DC
SOURCE WILL NEVER GENERATE A ROTATING FIELD THAT INDUCTION
MOTOR NEEDS TO ROTATE ITS ROTOR
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