The motor burned and see if it is for these reasons.
There are several reasons why the current is shorted:
The equipment is overloaded to operate the motor for a long time at rated current or over rated current;
The motor works in a damp working environment, the waterproof and moisture proof of the motor does not meet the standard, and the ground insulation and phase insulation of the coil have problems;
Other mechanical failures such as the death of the machine head cause the motor to be overloaded, and the current is too large to burn the coil;
There is a problem with the heat dissipation of the motor. Generally, the motor coils are air-cooled. Large motors are mostly cooled by air-to-air heat exchangers and air-to-water heat exchangers. If the cooling water (air) is broken and the coil cannot be dissipated, the coil may be burnt.
