Abb S.p.a.

Abb Service S.r.l.

Marco Stucchi

Francesco Viaro

Riccardo Panseri

Federico Gamba

Paolo Gritti

Matteo Cogi

Accessory device for a low or medium voltage switching device including an outer housing, first electrical connection means adapted to electrically connect the accessory device with an auxiliary power line and first mechanical connection means adapted to mechanically connect the accessory device with a mechanical support component of the switching device. The accessory device includes a power line communication unit electrically connectable with the auxiliary power line through the first electrical connection means and adapted to communicate with outer electronic equipment electrically connected with the auxiliary power line by transmitting and receiving communication signals along the auxiliary power line.

Accessory device for low and medium voltage switching devices

An accessory device for an electronic protection relay comprising: a first communication port for communication with one or more electronic devices of the electronic protection relay or operatively connected with the electronic protection relay; a second communication port for communication with one or more computerized units through the Internet; a first processing means to manage the operation of the accessory device, the first processing means being operatively coupled with the first and second communication ports. The accessory device is configured to execute a data-gathering procedure (DGP), in which the accessory device polls one or more electronic devices, which are in communication with the accessory device through the first communication port, and receives grid data (D), which are related to the operation of an electric power distribution grid including the electronic protection relay, from the electronic devices in response to the polling. The accessory device is configured to execute a data-publishing procedure (DPP), in which the accessory device transmits the grid data (D) to a publishing computerized unit, which is in communication with the accessory device through the second communication port.

Accessory device for an electronic protection relay

A communication network for a low-voltage switchboard comprising three types of communication bus. The first communication bus is designed to provide a first communication channel with at least one electronic protection device. A second communication bus is designed to provide a second communication channel with said electronic protection device. At least one third communication bus () is designed to provide a third communication channel between said at least one protection and control unit and one or more additional electronic modules (A,B,C,E,F). The second communication bus is associated with a second, higher user access level than the first user access level associated with said first communication bus.

Communication network for a low voltage electric switchboard

A protection device for circuit-breakers that comprises a wireless communication system for transmitting locally, to a dedicated computerized device, information corresponding to measurements of electrical quantities, to the setting of the parameters typical of the protection functions, or to diagnostics information corresponding to the electrical system, to the circuit-breaker or to the protection device itself.

Electronic protection devices for circuit-breakers and corresponding programming method

An electronic self-supplied protection device for automatic circuit-breakers that includes: a supply device that draws energy from the stretch of electrical network protected by said circuit-breaker; a control device with at least two levels of operation, where the first of the at least two levels of operation being associated to the function of protection from instantaneous short-circuit SCinst. In addition, second and possible further levels of operation of the self-supplied protection device are associated with further functions of said protection device; a selective interface device including means for regulating the supply, which, in a first step, immediately following upon closing of the circuit by the circuit-breaker, supply the first level of operation, and, after a controlled period of time, supply also the second and possible further levels of operation of said control device.

Self-supplied electronic protection device for automatic circuit-breakers

Described herein is an electronic protection device for automatic circuit-breakers comprising: a control unit; a warning interface; a supply system comprising a main supply system and a first back-up supply system; an interface for connection between said supply system and said control unit, said connection interface comprising an automatic device for passage from the main supply to the back-up supply in the event of interruption of said main supply.

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Osio Sotto, Italy

Marco Stucchi