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指出了目前1100V供电系统的局限性以及3.3kV供电系统的优点;介绍了工作面常用3.3kV供电设备的性能、结构特点,以及3.3kV供电系统在我国的应用情况及应用前景。
The limitations of the current 1100V power supply system and the advantages of the 3.3kV power supply system are pointed out. The performance, structural characteristics, and the application and prospects of the 3.3kV power supply system in China are introduced.