针对传统的选相装置合闸角度控制精度不高、合闸同步性差和合分闸操作频率较低等缺点,研制了一种新型用于矿用低压电器通断试验系统的选相装置。该装置选相范围广,接通能力强,快速响应控制要求并能精确控制合闸角度。经使用后证明:该装置能够满足试验关于选相合闸的要求,并具有较好的控制效果。 Aiming at the shortcomings of traditional phase selection device, such as the poor control accuracy of closing angle, the poor synchronicity of closing and the low operating frequency of combined opening and closing, a new phase selection device for on / off test system of mine low voltage electrical equipment was developed. The device has a wide range of phase selection, strong ability to connect, fast response control requirements and precise control of closing angle. Proved after use: The device can meet the test on the phase closing requirements, and has good control effect.