编制年月:61年12月一、适用处所: 在铁路各部門中,凡是设有两路低压电源的地方,都可以安装“低压电源自动切換装置”。它比手动切换的动作迅速可靠,在切換过程中,仍能保证用电设备的不間断运行,适宜于设置在电气集中,自动闭塞,机械化(?)峯、大型站屋,医院,手术室及电动给水所等处。路外其它部門设置兩个低压电源之处也可采用。二、设计内容: 1、共六种方案:①交直流电源切換方案,②兩路电源设于同一地点方案之(一),③两路电源设于同一地点之(二),④两路电源设 Prepared Year Month: December 61, Applicable Premises: In all railway departments, where there are two low-voltage power sources, “low-voltage power automatic switching device” can be installed. It is faster and more reliable than manual switching. During the switching process, it can still ensure the uninterrupted operation of electrical equipment. It is suitable for electrical concentration, automatic blocking, mechanized (?) peaks, large station houses, hospitals, operating rooms and Electric water supply etc. Other locations outside the road can also be used where two low voltage power supplies are located. Second, the design content: 1, a total of six programs: 1 AC and DC power switching program, 2 two-way power at the same location program (a), 3 two-way power at the same location (b), 4 two-way power Assume