| 摘要 |
<p>Disclosed are a power distribution system and a power distribution unit. The power distribution system comprises an electrical cable module, a power consumption device, and a power distribution unit. The power distribution unit comprises a first input terminal, a second input terminal, a first output terminal, a second output terminal, a fourth connector, a controlled switch, and a first sensing module, senses whether a second connector plugged in the fourth connector is unplugged, if yes, generates a second drive signal to a drive end of the controlled switch, and if not, generates a first drive signal to the drive end of the controlled switch. By means of the content disclosed in the foregoing, the technical solution disclosed by the present invention can effectively prevent a condition of an arc blast from a cut-off high-voltage direct current load when a connector plugged at a power distribution unit side and/or a power consumption device side is unplugged without massively upgrading power consumption devices in current grid and electrical cable modules for connection and without increasing the volume of a power distribution unit, but only with a small increase of cost, thereby protecting the safety of an operator.</p> |
