NZ595956A - A circuit breaker with a differential current protection device, an auxiliary contact and a disconnection actuator powered from line voltage - Google Patents

A circuit breaker with a differential current protection device, an auxiliary contact and a disconnection actuator powered from line voltage

Info

Publication number
NZ595956A
NZ595956A NZ59595611A NZ59595611A NZ595956A NZ 595956 A NZ595956 A NZ 595956A NZ 59595611 A NZ59595611 A NZ 59595611A NZ 59595611 A NZ59595611 A NZ 59595611A NZ 595956 A NZ595956 A NZ 595956A
Authority
NZ
New Zealand
Prior art keywords
contact
pole
moving contact
stationary
moving
Prior art date
Application number
NZ59595611A
Inventor
Matteo Chiaravalli
Paolo Antonello
Sergio Valagussa
Original Assignee
Abb Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Abb Spa filed Critical Abb Spa
Publication of NZ595956A publication Critical patent/NZ595956A/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being unbalance of two or more currents or voltages
    • H01H83/226—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being unbalance of two or more currents or voltages with differential transformer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures

Abstract

Disclosed is an electric switching device (1) adapted to connect/disconnect an electrical distribution source and an electric load. The switching device (1) is operatively connected to a circuit having a line voltage and is comprised of a first pole (2), a second pole (3), a differential protection device (50) and an actuation device (55). The first pole (2) has at least a first moving contact (4) which can be coupled to/decoupled from a first stationary contact (5) to provide a connection between at least a first electrical terminal (6) and a second electrical terminal (7). The first electrical terminal (6) and second electrical terminal (7) are connected to the first moving contact (4) and the first stationary contact (5), respectively. The second pole (3) has at least a second moving contact (8) which can be coupled to/decoupled from a respective second stationary contact (9) to provide a connection between at least a third electrical terminal (10) and a fourth electrical terminal (11). The third electrical terminal (10) and fourth electrical terminal (11) are connected to the second moving contact (8) and the second stationary contact (9), respectively. The first (6), second (7), third (10) and fourth (11) electrical terminals are adapted to electrically connect the first pole (2) and the second pole (3) to the electrical source and to the electric load. The differential protection device (50) comprises a detection device (300, 400) adapted to detect a differential current, and an actuation device (55) adapted to cause the decoupling of the first (4) and second (8) moving contacts from the respective first (5) and second (9) stationary contacts. The differential protection device (50) is operatively connected to the first (2) and second poles (3) and is configured in such a manner that, following the detection of a differential current above a predetermined threshold, a supply voltage drawn from the line voltage present between the first pole (2) and the second pole (3) is applied to the actuation device (55) to cause the decoupling of the first (4) and second (8) moving contacts from the respective first (5) and second (9) stationary contacts. The differential protection device (50) is configured in such a manner as to cause interruption of application of the supply voltage to the actuation device (55) following decoupling of the first (4) and second (8) moving contacts from the respective first (5) and second (9) stationary contacts, regardless of whether the electrical source is connected to the first (6) and third (10) electrical terminals or to the second (7) and fourth (11) electrical terminals. The differential protection device (50) comprises an auxiliary contact electrically positioned in series between the actuation device (55) and the first pole (2). The auxiliary contact is operatively connected to the first moving contact (4) in such a manner as to interrupt the series connection between the actuation device (55) and the first pole (2) following decoupling of the first moving contact (4) from the respective first stationary contact (5). The auxiliary contact comprises a first conductor element (201) electrically connected to the actuation device (55) and adapted to operatively interact with the first moving contact (4) in such a manner as to be coupled to the first moving contact (4) when the first moving contact (4) is coupled to the respective first stationary contact (5), and to be decoupled from the first moving contact (4) when the first moving contact (4) is decoupled from the respective first stationary contact (5).
NZ59595611A 2010-11-17 2011-10-25 A circuit breaker with a differential current protection device, an auxiliary contact and a disconnection actuator powered from line voltage NZ595956A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000062A ITBG20100062A1 (en) 2010-11-17 2010-11-17 ELECTRIC SWITCHING DEVICE.

Publications (1)

Publication Number Publication Date
NZ595956A true NZ595956A (en) 2013-03-28

Family

ID=43742513

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ59595611A NZ595956A (en) 2010-11-17 2011-10-25 A circuit breaker with a differential current protection device, an auxiliary contact and a disconnection actuator powered from line voltage

Country Status (5)

Country Link
EP (1) EP2455961B1 (en)
CN (1) CN102568967B (en)
AU (1) AU2011239222B2 (en)
IT (1) ITBG20100062A1 (en)
NZ (1) NZ595956A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2714102T3 (en) * 2014-05-19 2019-05-27 Abb Schweiz Ag High speed limitation electrical switchgear device
FR3046289B1 (en) * 2015-12-29 2018-02-16 Legrand France PROTECTIVE ELECTRICAL APPARATUS WITH MODULAR FORMAT
CN207367899U (en) * 2017-11-07 2018-05-15 施耐德电气工业公司 The low-voltage distribution equipment of predetermined state can be detected
CN109755078B (en) * 2017-11-07 2020-05-29 施耐德电气工业公司 Low-voltage power distribution device and method for controlling tripping of low-voltage power distribution device
CN213752600U (en) 2017-12-22 2021-07-20 黑格尔电镀物品股份有限公司 Modular power switching device
AU2018423700B2 (en) * 2018-05-16 2021-10-07 Hager-Electro Sas Electrical differential switching device
CN114207972B (en) * 2019-05-29 2023-08-01 黑格尔电镀物品股份公司 Electrical line (L) protection device for detecting leakage, short-circuit, overcurrent and arc faults

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3412273A1 (en) * 1984-04-02 1985-10-10 Heinrich Kopp Gmbh & Co Kg, 8756 Kahl Line protection circuit breaker having a differential-current trip device
GB2295275B (en) * 1994-11-15 1998-08-12 Matsushita Electric Works Ltd Circuit breaker
DE10211902A1 (en) * 2002-03-18 2003-10-02 Eti Elektroelement Dd Miniature circuit breaker with fault current cut-off
US6952150B2 (en) * 2002-10-02 2005-10-04 Pass & Seymour, Inc. Protective device with end of life indicator
FR2920911B1 (en) * 2007-09-11 2010-02-19 Schneider Electric Ind Sas ELECTRICAL DEVICE WITH DIFFERENTIAL PROTECTION
FR2927195A1 (en) * 2008-02-04 2009-08-07 Hager Electro S A S Soc Par Ac HIGH AND LOW CONNECTION ELECTRICAL CUTTING APPARATUS
ITMI20080330U1 (en) * 2008-10-10 2010-04-11 Abb Spa AUTOMATIC BIPOLAR SWITCH FOR LOW VOLTAGE APPLICATIONS.
DE102008052949B4 (en) * 2008-10-23 2010-10-21 Siemens Aktiengesellschaft Method of protection against overvoltage in a system connected to a power supply system, overvoltage protection device and arrangement with such

Also Published As

Publication number Publication date
ITBG20100062A1 (en) 2012-05-18
AU2011239222A1 (en) 2012-05-31
CN102568967A (en) 2012-07-11
AU2011239222B2 (en) 2016-07-07
EP2455961A1 (en) 2012-05-23
EP2455961B1 (en) 2013-08-28
CN102568967B (en) 2016-02-03

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Legal Events

Date Code Title Description
PSEA Patent sealed
RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 3 YEARS UNTIL 25 OCT 2024 BY DENNEMEYER + CO

Effective date: 20140829

Free format text: PATENT RENEWED FOR 7 YEARS UNTIL 25 OCT 2031 BY DENNEMEYER + CO

Effective date: 20140829

Free format text: PATENT RENEWED FOR 3 YEARS UNTIL 25 OCT 2021 BY DENNEMEYER + CO

Effective date: 20140829

Free format text: PATENT RENEWED FOR 3 YEARS UNTIL 25 OCT 2018 BY DENNEMEYER + CO

Effective date: 20140828

ASS Change of ownership

Owner name: ABB SCHWEIZ AG, CH

Effective date: 20191125