The traction frequency converter developed by our company has been successfully applied to the first unmanned mining locomotive in the country, filling a domestic gap. It has been in trial operation at the Dongguashan Copper Mine in Tongling, Anhui since December 2011 and has been in operation ever since, receiving high praise from users.
 

• Frequency converter model: KJVF-D5-110 (DC550V/110KW)
• Drives a 20T mining overhead dual-machine unmanned electric locomotive
• Wide voltage operating range (DC380-DC750V) adapts to frequent voltage fluctuations in mines, often pulling the bow.
• The upper computer controls the start, stop, speed setting, electric braking, air braking, and parking brake of the frequency converter through the communication bus. At the same time, the upper computer can read the operating status and various operating parameters of the frequency converter.
• Quick start after power failure, with a start time of less than 2 seconds.
• Two motors operate synchronously.
• Automatic switching between single machine and dual machine.
• IP54 protection level, with shockproof, moisture-proof, and dust-proof treatment for the frequency converter housing.