Interface module for communication with an electronic or an electromechanical device of a medium voltage interruption unit

1. An interface module for communication with at least a first device of a medium voltage interruption unit, said first device comprising at least a power supply port, through which said first device receives electric power, the interface module comprising:

a first interface electrically connected to said power supply port, said first interface exchanging information (I 1 , I 2 ) with said first device through said power supply port;

wherein the first interface transmits information (I 1 ) to the first device by modulating a supply voltage provided to the first device through the power supply port; and

wherein the first device transmits information (I 2 ) to the first interface by modulating a current consumption of said first device through the definition of a sequence of supply current levels for the current consumed by said first device.

2. An interface module, according to claim 1 , characterized in that said first interface comprises a power audio amplifier for modulating the supply voltage, which is supplied to said first device through said power supply port.

3. An interface module, according to claim 2 , characterized in that said first device comprises a decoder for decoding the information (I 1 ), which is transmitted by said first interface through said power supply port.

4. An interface module, according to claim 2 , characterized in that said first device transmits information (I 2 ) to said first interface by modulating the power supply current, which is supplied to said first device through said power supply port.

5. An interface module, according to claim 1 , characterized in that said first device comprises a decoder configured to decode the information (I 1 ), which is transmitted by said first interface through said power supply port.

6. An interface module, according to claim 5 , characterized in that said first device transmits information (I 2 ) to said first interface by modulating the power supply current, which is supplied to said first device through said power supply port.

7. An interface module, according to claim 1 , characterized in that said first device transmits information ( 12 ) to said first interface by modulating the power supply current, which is supplied to said first device through said power supply port.

8. An interface module, according to claim 7 , characterized in that said first interface comprises a current sensor for measuring the power supply current, which is consumed by said first device.

9. An interface module, according to claim 7 , characterized in that said first device comprises an encoder for encoding the information (I 2 ) to be transmitted to said first interface.

10. An interface module, according to claim 1 , characterized in that said first device comprises storage for storing the information (I 1 ) received from said first interface and/or the information (I 2 ) to be transmitted to said first interface.

11. An interface module, according to claim 1 , characterized in that it comprises second interface for exchanging information (I 1 , I 2 ) with at least a second device.

12. An interface module, according to claim 11 , characterized in that it comprises a transceiver, which allows the exchange of information (I 1 , I 2 ) between said first interface and said second interface.

13. An interface module, according to claim 11 , characterized in that said second device is a computerized device for programming/configuring said first device.

14. An interface module, according to claim 1 , characterized in that it is capable of executing a self learning procedure to measure the supply voltage and current values (Vp, Ip) that are supplied to the first device in normal conditions.

15. An interface module, according to claim 1 , characterized in that said first device is an actuating device or a sensing device or a relay or a switch device or a locking device of said interruption unit.

16. An interface module, according to claim 1 , characterized in that said medium voltage interruption unit is a medium voltage circuit breaker.

17. A medium voltage interruption unit characterized in that it comprises an interface module, according to claim 1 .

18. An interface module, according to claim 1 , characterized in that said first device transmits information ( 12 ) to said first interface by modulating the power supply current, which is supplied to said first device through said power supply port.