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

Patent metadata

Field	Value
Publication number	US-10319122-B2
Application number	US-201514612334-A
Country	US
Kind code	B2
Filing date	Feb 3, 2015
Priority date	Feb 14, 2014
Publication date	Jun 11, 2019
Grant date	Jun 11, 2019

Abstract

A display unit and an installation are disclosed for distributing electrical energy. In an embodiment, a display unit includes a plurality of switches. The display unit is connected via a communication link to the switches and is configured to receive data relating to the operation of the switches. Each switch of the installation comprises two mechanically disconnectable switching elements, a sensor unit to detect the current flowing over the switching elements, an electronic trip unit to initiate the disconnection of the switching elements if a trip condition allocated to the switch is fulfilled, and a mechanical switching unit to disconnect the switching elements if the trip condition is fulfilled.

First claim

What is claimed is:

1. A display system of a switching installation for distributing electrical energy among a plurality of installation branches via a plurality of protective switches, the display system comprising:
a data server;
a plurality of protective switches connected to the data server via a communication link; and
a display connected to the plurality of protective switches via the communication link, the display being configured to receive and display data relating to operation of the protective switches from the data server,
wherein each protective switch comprises three phases,
wherein data received from the data server of all of the 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,
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 displays 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.

2. The display system of claim 1 , wherein the plurality of protective switches is interconnected via communication connections that are designed as bus connections.

3. The display system of claim 1 , wherein the display system is connected via the communication link via the data server to the protective switches and the data server is configured to transmit and receive the data.

4. The display system of claim 3 , wherein the display system, together with the data server, form a display/data server combination.

5. The display system of claim 1 , wherein the data are displayed in prioritized form.

6. 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.

7. The display system of claim 1 , wherein the display is divided into viewable windows according to the number of protective switches installed in the switching installation.

8. The switching installation of claim 6 , wherein the display is divided into viewable windows according to the number of protective switches installed in the switching installation.

9. 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.

10. The protective switch of claim 9 comprising three phases and the phase of the power switch with the highest phase current is displayed in a highlighted manner.

11. The power switch of claim 9 , wherein the display is divided up into viewable windows according to the number of switches installed in the switching installation.

12. The display system of claim 1 , wherein the display has a plurality of manually operable keys configured as a user input.

13. The display system of claim 1 , wherein an internal data structure is in each case adapted to the number of switches and the data of the protective switches are then in each case clearly displayed.

14. The switching installation of claim 6 , wherein an internal data structure is in each case adapted to the number of switches and the data of the protective switches are then in each case clearly displayed.

15. The overload protective switch of claim 9 , wherein an internal data structure is in each case adapted to the number of switches and the data of the protective switches are then in each case clearly displayed.

Assignees

• Siemens Ag

Inventors

• Gerstner Michael
• Hauser Rainer
• Schwinn Bernd

Classifications

• G06T11/23

  using straight lines or curves · CPC title

• H02J13/10

  characterised by displaying of information or by user interaction, e.g. supervisory control and data acquisition [SCADA] systems · CPC title

• G06T11/26 Primary

  Drawing of charts or graphs · CPC title

• G06F1/3209

  Monitoring remote activity, e.g. over telephone lines or network connections · CPC title

• G06F2200/261

  PC controlled powerstrip · CPC title