公开(公告)号：US20180287368A1

公开(公告)日：2018-10-04

申请号：US15945345

申请日：2018-04-04

Applicant: ABB Schweiz AG

Inventor： Agostino Butti ,  Antonio Currá ,  Vittorio Cozzi

IPC: H02H3/28 ,  H02H1/00 ,  H03K21/08

Abstract: An electronic protection device (1) for a LV electric line (100) including one or more conductors (P, N), comprising: one or more pairs of electric contacts (10) adapted to be electrically connected with corresponding conductors of said electric line, said electric contacts being operatively coupleable or decoupleable one from another; a control unit (2) adapted to control the operation of said electronic protection device; Said control unit comprises an electronic arrangement to detect and determine arc fault conditions in said electric line.

公开(公告)号：US11018494B2

公开(公告)日：2021-05-25

申请号：US15945345

申请日：2018-04-04

Applicant: ABB Schweiz AG

Inventor： Agostino Butti ,  Antonio Currá ,  Vittorio Cozzi

IPC: H02H3/28 ,  H02H1/00 ,  H02H3/08 ,  H02H3/16 ,  H02H3/10 ,  H02H3/20 ,  H03K21/08 ,  G01R31/12

Abstract: An electronic protection device for a LV electric line including one or more conductors, comprising: one or more pairs of electric contacts adapted to be electrically connected with corresponding conductors of the electric line, the electric contacts being operatively coupleable or decoupleable from one another; and a control unit adapted to control the operation of the electronic protection device; wherein the control unit includes an electronic arrangement to detect and determine arc fault conditions in the electric line.

公开(公告)号：US11686758B2

公开(公告)日：2023-06-27

申请号：US17484055

申请日：2021-09-24

Applicant: ABB Schweiz AG

Inventor： Matija Varga ,  Yannick Maret ,  Agostino Butti ,  Antonio Currà ,  Vittorio Cozzi ,  Luca Ghezzi

IPC: G01R31/08 ,  G01R31/12 ,  H02H1/00 ,  H02H3/16

CPC classification number: G01R31/085 ,  G01R31/08 ,  G01R31/1272 ,  H02H1/0015 ,  H02H3/16

Abstract: An arc fault detection device for detecting an arc fault in an electric line includes a first terminal and a second terminal for connecting the arc fault detection device to a conductor of the electric line. A sensor is adapted for generating a sensor signal from a current through the electric line; and a controller is adapted for detecting the arc fault from the sensor signal. The sensor includes an inductor connected to the first terminal and the second terminal and a capacitor connected in parallel with the inductor. The inductor and the capacitor form a resonant circuit with a resonance frequency, the resonance frequency determining an impedance behavior of the resonant circuit; wherein the inductor and the capacitor are chosen such that the impedance behavior of the resonant circuit corresponds to a desired impedance behavior over a relevant frequency range of the current through the electric line.

公开(公告)号：US20180366935A1

公开(公告)日：2018-12-20

申请号：US16008499

申请日：2018-06-14

Applicant: ABB Schweiz AG

Inventor： Agostino Butti ,  Antonio Currà ,  Luca Ghezzi ,  Vittorio Cozzi

IPC: H02H3/04 ,  G01R31/327 ,  G06F1/08 ,  G01R31/08 ,  G06F1/10 ,  G06F1/14

Abstract: An electronic protection device for a LV electric line, the protection device being provided with a control unit comprising a controller including digital data processing resources clocked by a first clock source adapted to provide a first flock signal with a first nominal clock frequency. The control unit comprises a clock testing arrangement adapted to check whether the first clock source is properly operating.

公开(公告)号：US11095107B2

公开(公告)日：2021-08-17

申请号：US15945358

申请日：2018-04-04

Applicant: ABB Schweiz AG

Inventor： Agostino Butti ,  Antonio Currá ,  Vittorio Cozzi

IPC: H02H1/00 ,  H02H3/04 ,  H02H9/04 ,  H02H3/00 ,  G01R31/327 ,  G05B19/042 ,  G08B5/36

Abstract: An electronic protection device (1) for a LV electric line (100) including one or more conductors (P, N), comprising: one or more pairs of electric contacts (2) electrically connectable with corresponding conductors of said electric line and adapted to be mutually coupled or decoupled, said electric contacts being coupled when said protection device is in a closed state and being decoupled when said protection device is in a tripped state or open state; a control unit (3) comprising a controller (31) including data processing resources, said controller being capable of testing the operating conditions of said electronic protection device; a signalling arrangement (7) including one or more signalling devices (71) driven by said controller. Said signalling arrangement comprises a first signalling device (71) adapted to provide light signals (L1, L2, L3) indicative of the operating conditions for said electronic protection device, when said electronic protection device is in a closed state.

公开(公告)号：US20180366290A1

公开(公告)日：2018-12-20

申请号：US16060984

申请日：2015-12-09

Applicant: ABB Schweiz AG

Inventor： Paolo Antonello ,  Agostino Butti ,  Mauro Guerra

IPC: H01H71/46 ,  H01H71/52 ,  H01H71/04

Abstract: An electronic protection device (1) for a LV electric line (100) including at least a phase conductor (P) and a neutral conductor (N), comprising: —input terminals (IN) and output terminals (OUT), at which said electronic protection device is electrically connected respectively with an electric power source (SC) and with an electric load (LD) through said phase and neutral conductors (P, N); —a control unit (3) comprising a controller (31) including data processing resources; —one or more pairs of main contacts (2) electrically connected with corresponding one or more input and output terminals (IN, OUT) and adapted to be mutually coupled or separated; —one or more pairs of auxiliary contacts (4) electrically connected with corresponding one or more input terminals (IN) and with said control unit (3) and adapted to be mutually coupled or separated; —a handle (8) movable in a first position (ON) corresponding to a closed state of said electronic protection device, in a second position (TRIP) corresponding to a tripped state of said electronic protection device or in a third position (OFF) corresponding to an open state of said electronic protection device; —an operating mechanism (5) adapted to operate said main contacts, said auxiliary contacts and said handle; —a tripping unit (6) adapted to actuate said operating mechanism (5) in response to an activation by said control unit. Said main contacts (2) and said auxiliary contacts (4) are coupled when said electronic protection device is in said closed state with said handle (8) in said first position (ON). Said main contacts (2) are separated and said auxiliary contacts (4) are coupled when said electronic protection device is in said tripped state with said handle (8) in said second position (TRIP). Said main contacts (2) and said auxiliary contacts (4) are separated when said electronic protection device is in said open state with said handle (8) in said third position (OFF).

公开(公告)号：US20220091172A1

公开(公告)日：2022-03-24

申请号：US17484055

申请日：2021-09-24

Applicant: ABB Schweiz AG

Inventor： Matija Varga ,  Yannick Maret ,  Agostino Butti ,  Antonio Currà ,  Vittorio Cozzi ,  Luca Ghezzi

IPC: G01R31/08 ,  G01R31/12 ,  H02H1/00 ,  H02H3/16

Abstract: An arc fault detection device for detecting an arc fault in an electric line includes a first terminal and a second terminal for connecting the arc fault detection device to a conductor of the electric line. A sensor is adapted for generating a sensor signal from a current through the electric line; and a controller is adapted for detecting the arc fault from the sensor signal. The sensor includes an inductor connected to the first terminal and the second terminal and a capacitor connected in parallel with the inductor. The inductor and the capacitor form a resonant circuit with a resonance frequency, the resonance frequency determining an impedance behavior of the resonant circuit; wherein the inductor and the capacitor are chosen such that the impedance behavior of the resonant circuit corresponds to a desired impedance behavior over a relevant frequency range of the current through the electric line.

公开(公告)号：US10923900B2

公开(公告)日：2021-02-16

申请号：US16008499

申请日：2018-06-14

Applicant: ABB Schweiz AG

Inventor： Agostino Butti ,  Antonio Currá ,  Luca Ghezzi ,  Vittorio Cozzi

IPC: H01H3/04 ,  H02H3/04 ,  H02H3/33 ,  G05B19/042

Abstract: An electronic protection device for a LV electric line, the protection device being provided with a control unit comprising a controller including digital data processing resources clocked by a first clock source adapted to provide a first flock signal with a first nominal clock frequency. The control unit comprises a clock testing arrangement adapted to check whether the first clock source is properly operating.

公开(公告)号：US10580607B2

公开(公告)日：2020-03-03

申请号：US16060984

申请日：2015-12-09

Applicant: ABB Schweiz AG

Inventor： Paolo Antonello ,  Agostino Butti ,  Mauro Guerra

IPC: H01H71/46 ,  H01H71/52 ,  H01H71/04

Abstract: An electronic protection device for a LV electric line including at least a phase conductor and a neutral conductor, comprising: input terminals and output terminals, at which said electronic protection device is electrically connected respectively with an electric power source and with an electric load through said phase and neutral conductors; a control unit comprising a controller including data processing resources; one or more pairs of main contacts electrically connected with corresponding one or more input and output terminals and adapted to be mutually coupled or separated; one or more pairs of auxiliary contacts electrically connected with corresponding one or more input terminals and with said control unit and adapted to be mutually coupled or separated; a handle movable in a first position corresponding to a closed state of said electronic protection device, in a second position corresponding to a tripped state of said electronic protection device or in a third position corresponding to an open state of said electronic protection device; an operating mechanism adapted to operate said main contacts, said auxiliary contacts and said handle; a tripping unit adapted to actuate said operating mechanism in response to an activation by said control unit. Said main contacts and said auxiliary contacts are coupled when said electronic protection device is in said closed state with said handle in said first position. Said main contacts are separated and said auxiliary contacts are coupled when said electronic protection device is in said tripped state with said handle in said second position. Said main contacts and said auxiliary contacts are separated when said electronic protection device is in said open state with said handle in said third position.

公开(公告)号：US20180301887A1

公开(公告)日：2018-10-18

申请号：US15945358

申请日：2018-04-04

Applicant: ABB Schweiz AG

Inventor： Agostino Butti ,  Antonio Currá ,  Vittorio Cozzi

IPC: H02H1/00 ,  G01R31/327 ,  G08B5/36 ,  G05B19/042

Abstract: An electronic protection device (1) for a LV electric line (100) including one or more conductors (P, N), comprising: one or more pairs of electric contacts (2) electrically connectable with corresponding conductors of said electric line and adapted to be mutually coupled or decoupled, said electric contacts being coupled when said protection device is in a closed state and being decoupled when said protection device is in a tripped state or open state; a control unit (3) comprising a controller (31) including data processing resources, said controller being capable of testing the operating conditions of said electronic protection device; a signalling arrangement (7) including one or more signalling devices (71) driven by said controller. Said signalling arrangement comprises a first signalling device (71) adapted to provide light signals (L1, L2, L3) indicative of the operating conditions for said electronic protection device, when said electronic protection device is in a closed state.