FIELD: electricity.
SUBSTANCE: invention may be used in commuted power supply sources with over-current protection. Voltage switch board with load bank protection from over-current includes controlled switch, which supplies power to load bank through current load sensor, as well as the second controlled switch. Relay element connected to current load sensor output de-energises load bank though logical element OR and trigger if current overload is detected while unit is switched on or under steady-state conditions. Thresholds for over-current protection actuation are adjusted by control unit, voltage switch board connection and disconnection inputs being connected to control unit inputs.
EFFECT: widening of application area and extension of functional capabilities.
1 dwg
