WO2009043075A3 - Ground fault circuit interrupter - Google Patents

Ground fault circuit interrupter Download PDF

Info

Publication number
WO2009043075A3
WO2009043075A3 PCT/AT2008/000356 AT2008000356W WO2009043075A3 WO 2009043075 A3 WO2009043075 A3 WO 2009043075A3 AT 2008000356 W AT2008000356 W AT 2008000356W WO 2009043075 A3 WO2009043075 A3 WO 2009043075A3
Authority
WO
WIPO (PCT)
Prior art keywords
switch
ground fault
circuit interrupter
fault circuit
multipole
Prior art date
Application number
PCT/AT2008/000356
Other languages
German (de)
French (fr)
Other versions
WO2009043075A2 (en
Inventor
Lothar Fickert
Walter Hipp
Ernst Schmautzer
Reinhard Hirtler
Original Assignee
Univ Graz Tech
Forschungsholding Tu Graz Gmbh
Lothar Fickert
Walter Hipp
Ernst Schmautzer
Reinhard Hirtler
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 Univ Graz Tech, Forschungsholding Tu Graz Gmbh, Lothar Fickert, Walter Hipp, Ernst Schmautzer, Reinhard Hirtler filed Critical Univ Graz Tech
Publication of WO2009043075A2 publication Critical patent/WO2009043075A2/en
Publication of WO2009043075A3 publication Critical patent/WO2009043075A3/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/33—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
    • H02H3/334—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers with means to produce an artificial unbalance for other protection or monitoring reasons or remote control
    • H02H3/335—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers with means to produce an artificial unbalance for other protection or monitoring reasons or remote control the main function being self testing of the device
    • 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
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly

Abstract

Disclosed is ground fault circuit interrupter comprising a summation current transformer (RK, W, SC) for lines (L1, N) that are to be monitored and are led across the contacts of a first multipole switch (S1) which is retained by a breaker mechanism (SC) in the closed position thereof. The breaker mechanism (SC) trips the switch by opening the contacts thereof when a predefined current difference is exceeded in the lines. The ground fault circuit interrupter further comprises a second switch (S2) that is designed as a test pushbutton. When said second switch (S2) is closed, a defined fault current that is sufficient to trip the switch is tapped from a conductor. The disclosed ground fault circuit interrupter also comprises bypass branches (Z1, ZN) for temporarily bypassing the contact paths of the first multipole switch (S1). The bypass branches (Z1, ZN) each contain a winding of a balancing transformer (SW; SW1, SW2), or the switching contacts of a third multipole switch (S3) are arranged between the summation current transformer (RK, W, SC) and the line contacts of the first multipole switch (S1), and a locking mechanism (VG) is provided which prevents the third multipole switch (S3) from being actuated when the first switch (S1) is tripped.
PCT/AT2008/000356 2007-10-04 2008-10-02 Ground fault circuit interrupter WO2009043075A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ATA1576/2007 2007-10-04
AT15762007A AT505799B1 (en) 2007-10-04 2007-10-04 FAULT CIRCUIT BREAKER
ATA750/2008 2008-05-08
AT7502008A AT505635B1 (en) 2007-10-04 2008-05-08 FAULT CIRCUIT BREAKER

Publications (2)

Publication Number Publication Date
WO2009043075A2 WO2009043075A2 (en) 2009-04-09
WO2009043075A3 true WO2009043075A3 (en) 2009-07-30

Family

ID=40427620

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2008/000356 WO2009043075A2 (en) 2007-10-04 2008-10-02 Ground fault circuit interrupter

Country Status (2)

Country Link
AT (2) AT505799B1 (en)
WO (1) WO2009043075A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT510330A2 (en) * 2010-08-19 2012-03-15 Eaton Gmbh SWITCHGEAR
AT511792B1 (en) 2011-07-26 2015-02-15 Eaton Gmbh SWITCHGEAR
EP3874535A1 (en) * 2018-10-29 2021-09-08 Hager-Electro Sas Auxiliary shunt module for a differential protection device
CN115450054B (en) * 2022-09-19 2024-01-12 陕西科技大学 Super-hydrophobic flexible heat-conducting film and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4432643A1 (en) * 1994-09-14 1996-03-21 Rainer Dipl Phys Berthold Contact arrangement for fault-current (FI) circuit breaker for e.g. refrigerators or freezers
EP1562213A1 (en) * 2004-02-06 2005-08-10 GEWISS S.p.A. Residual current-operated circuit breaker with autodiagnostic and autoreset functions

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4432643A1 (en) * 1994-09-14 1996-03-21 Rainer Dipl Phys Berthold Contact arrangement for fault-current (FI) circuit breaker for e.g. refrigerators or freezers
EP1562213A1 (en) * 2004-02-06 2005-08-10 GEWISS S.p.A. Residual current-operated circuit breaker with autodiagnostic and autoreset functions

Also Published As

Publication number Publication date
AT505635B1 (en) 2009-03-15
WO2009043075A2 (en) 2009-04-09
AT505799A1 (en) 2009-04-15
AT505635A4 (en) 2009-03-15
AT505799B1 (en) 2009-06-15

Similar Documents

Publication Publication Date Title
CA2783683C (en) Electronic miniature circuit breaker with trip indication using the breaker tripping function as the feedback mechanism
WO2009043075A3 (en) Ground fault circuit interrupter
CA2715830C (en) Shield apparatus for circuit breaker
WO2008101111A3 (en) Fusible switching disconnect modules and devices
RU2490747C1 (en) Circuit breaker
MXPA03003922A (en) Reset lockout and trip for circuit interrupting device.
MX2013005811A (en) Circuit breaker with plug on neutral connection lock-out mechanism.
MX2007015459A (en) Series arc fault current interrupters and methods.
WO2011094665A3 (en) Switching circuit having delay for inrush current protection
MX2019001478A (en) Circuit breakers incorporating reset lockout mechanisms.
ATE465507T1 (en) ELECTRICAL SWITCHING DEVICE
EP3327885A3 (en) A method to utilize multiple configuration software for df/cafi breakers
RU2010127233A (en) CIRCUIT BREAKER FOR USE IN LOW VOLTAGE CHAINS
NO20073530L (en) Main switching device for back-up protection against electric shock in earth-protected consumption installation, with mains-dependent fault current release and high selectivity
ATE452417T1 (en) RESIDUAL CURRENT PROTECTION BREAKER
CN202259078U (en) Small electricity leakage circuit breaker with width of 18mm
EP2509092A1 (en) Electric switching device
RU2009137575A (en) BIPOLAR AUTOMATIC CHAIN SWITCH FOR USE AT LOW VOLTAGE
US10984974B2 (en) Line side power, double break, switch neutral electronic circuit breaker
CA2796916C (en) Electrical switching apparatus including two poles and a single operating handle
US20130199906A1 (en) Electrical switching device, especially circuit breaker
US20020050886A1 (en) Molded case circuit breaker accessory system
US8860535B2 (en) Test button for an electrical switching device and electrical switching device
US9847201B2 (en) Circuit protection apparatus and method of setting trip parameters thereof
WO2013102933A3 (en) Residual current circuit breaker with overcurrent protection (rcbo) with an improved neutral pole kinematic chain

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08799945

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08799945

Country of ref document: EP

Kind code of ref document: A2