Electric switching device

Patent metadata

Field	Value
Publication number	US-9734973-B2
Application number	US-201313940798-A
Country	US
Kind code	B2
Filing date	Jul 12, 2013
Priority date	Feb 3, 2011
Publication date	Aug 15, 2017
Grant date	Aug 15, 2017

Abstract

An electric switching device for a low voltage circuit includes an electronic unit configured to be operatively connected to a first communication bus implementing a first communication protocol, a communication module configured to be operatively connected to the first communication bus and to a second communication bus implementing a second communication protocol, which is different than the first communication protocol. The communication module is configured to place the first communication bus in communication with the second communication bus, and to detect a condition of the switching device and make it available externally thereto by means of the first communication bus and/or the second communication bus.

First claim

What is claimed is:

1. An electrical switching device for a low voltage circuit, comprising: an electronic unit configured to be operatively connected to a first communication bus that implements a first communication protocol; a communication module configured to be operatively connected to the first communication bus and to a second communication bus that implements a second communication protocol, which is different than the first communication protocol, wherein the communication module is configured to place the first communication bus in communication with the second communication bus, and wherein the communication module is configured to detect a condition relative to the electrical switching device and make it accessible externally thereto through at least one of the first communication bus and the second communication bus; wherein the electrical switching device further includes a first auxiliary contact configured to signal a first characteristic of the electrical switching device and a second auxiliary contact configured to signal a second characteristic of the electrical switching device, wherein the communication module is structured to make the first characteristic and the second characteristic accessible externally thereto through at least one of the first communication bus and the second communication bus.

2. The electrical switching device according to claim 1 , wherein the communication module is configured to control actuation means causing opening or closing of the electrical switching device, by using, a signal received through at least one of the first communication bus and the second communication bus.

3. The electrical switching device according to claim 1 , wherein the communication module is configured to control the actuation means using a state of the electrical switching device signaled by one of the first and second auxiliary contacts.

4. The electrical switching device according to claim 1 , wherein the first communication bus comprises an internal communication bus which is configured to be operatively connected directly to the electronic unit.

5. The electrical switching device according to claim 4 , wherein the first communication bus comprises an external communication bus configured to be operatively connected to at least one device external to the electrical switching device, and wherein the communication module is configured to operatively connect the external communication bus to the electronic unit through the internal communication bus.

6. The electrical switching device according to claim 1 , wherein the communication module is configured to place the first communication bus, which implements a Fieldbus communication protocol, in communication with the second communication bus.

7. The electrical switching device according to claim 1 , wherein the communication module is configured to place the first communication bus in communication with the second communication bus, which implements a Modbus communication protocol.

8. The electrical switching device according to claim 1 , comprising: a containment enclosure in which the communication module is housed.

9. An electrical circuit comprising a first electrical switching device which includes all elements and limitations of the electrical switching device according to claim 1 .

10. An electrical circuit comprising a first electrical switching device which includes all elements and limitations of the electrical switching device according to claim 1 and a second electrical switching devices which includes all elements and limitations of the electrical switching device according to claim 1 , wherein the electronic unit of the first electrical switching device and the electronic unit of the second electrical switching device are configured to communicate with each other through the at least one of the first communication bus and the second communication bus of the respective first and second electrical switching devices.

11. The electrical switching device according to claim 1 , wherein the communication module is configured to control actuation means causing opening or closing of the electrical switching device, by using a signal received through at least one of the first communication bus and the second communication bus.

12. The electrical switching device according to claim 11 , wherein the communication module is configured to control the actuation means using a state of the electrical switching device signalled by at least one of the first and second auxiliary contacts.

13. The electrical switching device according to claim 12 , wherein the first communication bus comprises an internal communication bus which is configured to be operatively connected directly to the electronic unit.

14. The electrical switching device according to claim 13 , wherein the first communication bus comprises an external communication bus configured to be operatively connected to at least one device external to the electrical switching device, and wherein the communication module is configured to operatively connect the external communication bus to the electronic unit through the internal communication bus.

15. The electrical switching device according to claim 14 , wherein the communication module is configured to place the first communication bus, which implements a Fieldbus communication protocol, in communication with the second communication bus.

16. The electrical switching device according to claim 14 , wherein the communication module is configured to place the first communication bus in communication with the second communication bus, which implements a Modbus communication protocol.

17. The electrical switching device according to claim 14 , comprising: a containment enclosure in which the communication module is housed.

18. The electrical switching device according to claim 1 , wherein the first characteristic and the second characteristic can be a state or a condition of the electrical switching device, and, wherein the first characteristic is a different type than the second characteristic.

19. The electrical switching device according to claim 1 , wherein the first characteristic and the second characteristic can be one of: an open state of the electrical switching device, a closed state of the electrical switching device, a tripped state of the electrical switching device, and a temperature of the electrical switching device; and wherein the second characteristic is different from the first characteristic.

Assignees

• Abb Spa

Inventors

• Raciti Luca
• Manzoli Romano

Classifications

• H01H71/465

  Self-contained, easily replaceable microswitches · CPC title

• Y04S20/14

  Protecting elements, switches, relays or circuit breakers · CPC title

• Y02B90/224

  Cross-Sectional Technologies · mapped topic

• H01H71/04 Primary

  Means for indicating condition of the switching device {(by means of an auxiliary contact H01H71/46)} · CPC title

• Y10T307/937

  Cross-Sectional Technologies · mapped topic