Method for eliminating grounding fault of wholesale 24v dc motor armature winding
Troubleshooting method for grounding fault of DC motor armature winding:
The grounding fault of the armature winding usually occurs at the slot and the bottom of the slot. The insulation resistance meter method or the calibration lamp method can be used for determining the insulation resistance of the armature winding to the base by the insulation resistance meter. If the resistance is zero, the armature winding is grounded; or the millivolt meter method is used to determine that the 36V low-voltage power supply passes through the low-voltage illumination lamp with a rated voltage of 36V, and is connected to the commutator chip and one end of the shaft. If the lamp is bright, It indicates that there is a ground fault in the armature winding.
The influence of the grounding fault of the DC motor armature winding:
If the armature winding is severely short-circuited, the DC motor will burn out. If only a single coil is short-circuited, the DC motor can still operate, only the spark on the commutator surface becomes large, and the armature winding heats up seriously. If it is not found and eliminated in time, it will eventually cause the DC motor to burn out. Therefore, when a short-circuit fault occurs in the armature winding, it must be eliminated in time.
