... transfer switch reaction；转换开关反应 transfer switch type；转换开关型式 transformer；变压器 ...
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Auto transfer switch panels shall be free standing, indoor type, metal enclosed units with degree of protection IP42.
自动手动转换开关板应为独立式，室内型、金属外壳装置，保护等级为IP42。
Plug-type power, user the transfer switch to change the initial step coils adjust The welding voltage. Thus the performance is reliable and maintenance id very simple.
抽头式电源，用转换开关改变初级线圈匝数来调节焊接电压，因此性能十分可靠，维修亦简便。
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