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发明公开
CN105047494A 低压万能断路器自动合闸装置 无效 - 驳回

低压万能断路器自动合闸装置
摘要：
本发明涉及一种低压万能断路器自动合闸装置。其特点是：包括控制单元，该控制单元通过低压万能断路器的一对常闭辅助触头(DF)接低压万能断路器的电源进线，该控制单元包括时间继电器(KT)的线圈，该时间继电器(KT)的第一常开触点(KT-1)与第一交流接触器(KM1)的线圈串联后与前述时间继电器(KT)的线圈并联，而该时间继电器(KT)的第二常开触点(KT-2)与第二交流接触器(KM2)的线圈串联后也与前述时间继电器(KT)的线圈并联。经过试用证明，采用本发明的自动合闸装置后，有效缩短了小区变对用户的恢复送电时间，增加了售电量，提高了配电网供电能力，提升了服务水平。
摘要（英）：

The invention relates to an automatic closing apparatus of a low-voltage universal circuit breaker. The automatic closing apparatus comprises a control unit that is connected with a power inlet wire of a low-voltage universal circuit breaker by a pair of normally-closed auxiliary contacts (DF) of the low-voltage universal circuit breaker. The control unit contains a coil of a time relay (KT); a first normally-open contact (KT-1) of the time relay (KT) is connected in series with a coil of a first alternating-current contactor (KM1) and then is connected in parallel with the coil of the time relay (KT); and a second normally-open contact (KT-2) of the time relay (KT) and a coil of a second alternating-current contactor (KM2) are connected in series and then are connected in parallel with coil of the time relay (KT). The application of the apparatus demonstrates that the power sending recovery time for users by a cell transformer station is effectively shortened with the apparatus, the power sale quantity is increased, the power supply capability of the distribution grid is improved, and the service level is enhanced.

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