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四川智能(neng)應(ying)急電(dian)(dian)(dian)源：ZG-D(YJD/S)系列EPS單/三相(xiang)智能(neng)應(ying)急電(dian)(dian)(dian)源1、產品原(yuan)理當市電(dian)(dian)(dian)正常時(shi)，由(you)市電(dian)(dian)(dian)經過(guo)互投裝置給負(fu)載供電(dian)(dian)(dian)，同時(shi)充電(dian)(dian)(dian)器(qi)給備(bei)用(yong)電(dian)(dian)(dian)池(chi)進行智能(neng)充電(dian)(dian)(dian)。當市電(dian)(dian)(dian)斷電(dian)(dian)(dian)，或超過(guo)正常電(dian)(dian)(dian)壓(ya)的20%時(shi)，由(you)...