可在顶部、底部安装手动操作机构。
Can be at the top, the bottom of the installation manual operating mechanism.
本环网柜配用电手，电动弹簧机构来操作负荷开关，接地开关和隔离开关配用手动操作机构。
The cabinet is equipped with electric hand ring, electric spring mechanism to operate the load switch, grounding switch and isolating switch with manual operating mechanism.
断路器具有一种新颖的手动操作机构，能确保DW50断路器在主触头闭合时不会再储能，而在主触头断开时能正常储能。
The features, performances and main technical parameters of DW50-1000 were introduced in this paper, especially a new manual operation mechanism of the circuit breaker.
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