| 摘要 |
<p>This apparatus is a switching gadget if the domestic supply voltage is failed this switching device is automatically transfer to the backup source of the storage battery. The input supply of the gadget is a 220 volts, while the output of the charger transformer can be a 12, 24, 48 volts depending to the model of every design, and more over if the backup source is intended for the use of a 220 volts or 110 A.C. it may employed to the existing inverter source of a 220 volts to associate the brownout automatic switching device if needed.</p> |
