一、机械联锁的作用不论在正常运行状态,还是在控制线路出了差错的情况下,调压开关机械联锁必须起下列作用: 1.分级转换开关转换时,绕组转换开关应无法转换; 2.绕组转换开关转换时,分级转换开关应无法转换; 3.只有当分级转换开关处于17位时,才允许绕组转换开关转换。二、机械联锁机构的构造和作用原理 First, the role of mechanical interlock Whether it is in normal operation, or in the case of an error in the control line, the mechanical interlock must play the following role: 1. Staging switch switch, the winding switch should not be converted; 2.When the winding change-over switch is changed, the level change-over switch should not be changed. 3. Only when the level change-over switch is in position 17, the changeover switch of the winding is allowed. Second, the mechanical interlocking mechanism of the structure and role of principle