Display unit and installation for distributing electrical energy with a corresponding display unit

A switching installation for distributing electrical energy among a plurality of installation branches via a plurality of protective switches, each protective switch comprising three phases, the switching installation comprising:

• a data server, connected via a communication link to the plurality of protective switches, to receive data relating to operation of the protective switches;
• and
• a display connected via a communication link to the data server, to display the data of the protective switches, wherein the display is configured to display the data, wherein data of all protective switches is displayed simultaneously on the display and the display is adapted automatically to the respective number of protective switches installed in the switching installation, and wherein each protective switch comprises:
• at least two mechanically disconnectable switching elements,
• a sensor to detect a current flowing over the at least two mechanically disconnectable switching elements,
• an electronic tripping device to initiate disconnection of the at least two mechanically disconnectable switching elements if a trip condition allocated to the switch is fulfilled, and
• a mechanical switch to disconnect the at least two mechanically disconnectable switching elements if the trip condition is fulfilled, wherein the received data includes switch identity, switch state, present load current, measured values and alarm/error messages, wherein the display provides simultaneously information relating to each protective switch including the states on, off and trip, wherein for each protective switch the display is displaying the protective switch identity together with the state of the protective switch, and, when an protective switch that comprises three phases is switched on, current of one single phase out of three phases is displayed by displaying the current value of the phase with the highest current of the three phases,
• when an protective switch is switched off, OFF is displayed, and when an protective switch is tripped, TRIP is displayed as highlighted flashing text.

An protective switch having three phases, comprising

• at least two mechanically disconnectable switching elements,
• a sensor to detect a current flowing over the switching elements,
• an electronic tripping device to initiate the disconnection of the switching elements if a trip condition allocated to the switch is fulfilled, and
• a mechanical switch to disconnect the switching elements if the trip condition is fulfilled, the protective switch being connected via a communication link to a display unit of a switching installation, wherein
• the display unit is configured to receive and display data relating to operation of the protective switch, wherein the display unit comprises a display to display data, wherein data of all installed power switches is displayed simultaneously on the display and the display is adapted automatically to the respective number of switches installed in the switching installation,
• wherein display data includes switch identity, switch state, present load current, measured values and alarm/error messages, wherein the display provides simultaneously information relating to each protective switch including the states on, off and trip, wherein for each protective switch the display is displaying the protective switch identity together with the state of the protective switch, and, when an protective switch that comprises three phases is switched on, current of one single phase out of three phases is displayed by displaying the current value of the phase with the highest current of the three phases,
• when an protective switch is switched off, OFF is displayed, and
• when an protective switch is tripped, TRIP is displayed as highlighted flashing text.