所谓不间断电源系统,就是当停电时不间断电源 UPS能够接替市电持续供应电力的设备,它的动力来自电池组,由于电子元器件反应速度快,停电的瞬间在4~8毫秒内或无中段时间下继续供应APC UPS 上海 UPS 不间断电源作用
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