Summary：China contributes 50 percent of coal in the world, but lacks an independent mine-specific variable frequency anti-explosion power system.

China contributes 50 percent of coal in the world, but lacks an independent mine-specific variable frequency anti-explosion power system. On October 23, CSR Zhuzhou Electric Co., Ltd. CSR Zhuzhou Electric announced the integrated unit of mine-specific variable frequency motor developed in cooperation with Tangshan Kaicheng Electric Control Equipment Group Co., Ltd., making China the second country capable of independently developing the high-end equipment system after Germany.

According to the Statistical Review of World Energy 2012, China will rank as the world’s largest coal-producing country with a coal output equivalent to 1.956 billion tons of oil. According to the technologists of CSR Zhuzhou Electric, the most advanced power for equipment including large mine winch, tunneller, scraper and conveyor is the integrated unit of mine-specific variable frequency motor that can operates safely, steadily and efficiently in harsh conditions. In the past, only a German enterprise was capable of developing the high-end equipment system in world. In recent years, CSR Zhuzhou Electric and Kaicheng jointly organized technologists to research and develop the unit independently. According to the results of tests and trial operations, the homemade unit enjoys core competitiveness such as small size, high operation efficiency, strong overload capacity, high efficiency and energy conservation.