| 摘要 |
A voltage switch-over device (23) has a power rectifier (26), a step-up transformer (34,35) with storage elements (50,51), a transformer (40), a switching device (59), a controller (4) and power connection lines (27-29) connecting the power rectifier to a power source (24). A consumer (25) is connected to the transformer's secondary winding (42). Connected to the switching device or controller, a network evaluation device (32) assesses the power source voltage. |
