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四川(chuan)智能(neng)應(ying)急(ji)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)：ZG-D(YJD/S)系列(lie)EPS單(dan)/三相智能(neng)應(ying)急(ji)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)1、產品原理當市電(dian)(dian)(dian)(dian)(dian)(dian)正常時，由市電(dian)(dian)(dian)(dian)(dian)(dian)經(jing)過(guo)互(hu)投裝置給負載供電(dian)(dian)(dian)(dian)(dian)(dian)，同時充電(dian)(dian)(dian)(dian)(dian)(dian)器給備用電(dian)(dian)(dian)(dian)(dian)(dian)池進(jin)行智能(neng)充電(dian)(dian)(dian)(dian)(dian)(dian)。當市電(dian)(dian)(dian)(dian)(dian)(dian)斷(duan)電(dian)(dian)(dian)(dian)(dian)(dian)，或超過(guo)正常電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)的20%時，由...