Power Electronics has provided a redundant system using the VS65 medium voltage soft starter and the XMV660 medium voltage variable speed drive to the Tizapa Mining Plant (Mexico) adding safety, reliability and efficiency to the mine ventilation system.
The Tizapa Mining Plant processes concentrated zinc, lead and copper which when processed allow for separation from other metals such as gold and silver. Jointly owned by Peñoles, the worlds number one silver producers and Japan’s Sumitomo, the mine is located in the town of Zacazonapan, State of Mexico and is the largest employer of workers south of the state.
The ventilation of the mine has a 460kW engine coupled to the 4.16kV drive, which requires maximum efficiency for the fans which must run uninterrupted. Power Electronics worked with the clients to design a redundant solution, fully aware that the lives of hundreds of workers would be at risk if the system stopped unexpectedly. In order for the drive to be serviced, Power Electronics designed the XMV660 drive and the VS65 starter to be connected in parallel, allowing the starter to act as a failsafe to the drive. The changeable system is designed with line contactors to allow for the operation and maintenance of both units and ensuring 100% safety.
Special solutions of Power Electronics’ medium voltage equipment, the XMV660 and VS65 are assembled and factory tested together allowing this option to be the most compact and safe in the market.