Forum Discussion
ken_white
Jun 26, 2014Explorer
Should a motor ever be operated at lower than rated voltage?
The motor's load may be considered fixed, so the same work (or power/energy delivered) is performed when operated.
When the motor's input voltage is low, the input current draw must increase in an effort to perform the same work.
This increased current draw causes increased internal heating and reduced motor efficiency, which overheats the windings and core and can cause premature failure.
So, never operate any motor below its minimum voltage specifications or it will fail early.
The motor's load may be considered fixed, so the same work (or power/energy delivered) is performed when operated.
When the motor's input voltage is low, the input current draw must increase in an effort to perform the same work.
This increased current draw causes increased internal heating and reduced motor efficiency, which overheats the windings and core and can cause premature failure.
So, never operate any motor below its minimum voltage specifications or it will fail early.
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