Five reasons for the failure of wholesale dc motor 12v resistance
The failure of the motor is inevitable, and the resistance of the DC geared motor sometimes fails. Generally, the resistance is unqualified, but the fault cannot be completely avoided. When the DC geared motor encounters a fault with unsatisfactory resistance, we can analyze the cause according to the following five aspects:
1. Winding fault: The winding has a short-circuit fault in the turn-to-turn; the winding has two or more contacts with the casing, causing a ground fault.
2. Winding connection: The components of the group are not connected correctly; the connecting line of the geared motor, the length of the lead wire or the cross-sectional area do not meet the requirements. Check the connection rules of the winding components, connect the rules, and correct the components that are connected incorrectly.
3. In terms of wire breakage: the joint of the joint wire is broken; the wire of the coil lead or bend is broken; the wire of the wound wire or the parallel branch has a break. Check with the instrument, gently shake the wire, the instrument pointer will follow the swing, the test of the broken wire or the insulation resistance meter is not convenient, check and check and re-weld.
4. In terms of electromagnetic wire specifications: the thickness of the magnetic wire is uneven, one segment is qualified, and one segment is unqualified.
5, rewinding coil process: DC gear motor coil size is inconsistent; the number of coil turns is not right; line tension is uneven.
