Understanding the rated current of motors
Thread Content
Generally speaking, it is said that during operation a pump’s motor current should not exceed the rated current. Why can’t it exceed the rated current? Is it because the motor’s cooling system is only capable of handling the current levels associated with normal operation at the rated capacity? If the current exceeds this rating, heat cannot be dissipated in time, leading to heat accumulation and a higher risk of damaging the motor – is that correct? My brother studies craftsmanship; I hope fellow netizens won’t laugh at him
The coils inside the motor as well as the power cables are selected based on the rated current. If overloaded, it will overheat and may even burn out or short-circuit, causing the insulation to break down