Why Mining Long-distance Axial Flow Fans Fail to Start?

When encountering issues with the startup of mining long-distance axial flow fans, several common causes and solutions should be considered:

Power Supply Check: Ensure that the power supply is switched on. Inspect the switch, fuses, contacts, and motor lead wires for any faults or disconnections.

Motor Winding Open Circuit: If there is an open circuit in the motor winding, follow these steps: Heat the affected area to a permissible insulation temperature of 130℃, carefully strip the insulation, repair the open circuit by welding with the appropriate specification wire, insulate the repaired area, and then allow it to dry after painting.

Motor Winding Grounding or Inter Phase Short Circuit: Address grounding or short circuit issues in the motor winding similarly by insulating the affected areas, followed by painting and drying to ensure proper insulation and functionality.

Burnt-out Fuses: In case of fuse burnout, identify the cause, troubleshoot the issue, and replace the fuse with a new one that matches the motor’s specifications.

Incorrect Control Equipment Connection: Verify and correct any incorrect connections in the control equipment to ensure proper functioning.

By systematically addressing these potential issues, operators can effectively diagnose and resolve startup problems with mining long-distance axial flow fans, ensuring optimal performance and operational reliability in mining environments.