WO2018083350A1 - Dispositif de test du fonctionnement de disjoncteurs - Google Patents

Dispositif de test du fonctionnement de disjoncteurs Download PDF

Info

Publication number
WO2018083350A1
WO2018083350A1 PCT/EP2017/078506 EP2017078506W WO2018083350A1 WO 2018083350 A1 WO2018083350 A1 WO 2018083350A1 EP 2017078506 W EP2017078506 W EP 2017078506W WO 2018083350 A1 WO2018083350 A1 WO 2018083350A1
Authority
WO
WIPO (PCT)
Prior art keywords
test
test device
test signal
amplifier
outer conductor
Prior art date
Application number
PCT/EP2017/078506
Other languages
German (de)
English (en)
Inventor
Stefan HASLINGER
Michael Bartonek
Michael Koch
Original Assignee
Eaton Industries (Austria) Gmbh
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 Eaton Industries (Austria) Gmbh filed Critical Eaton Industries (Austria) Gmbh
Publication of WO2018083350A1 publication Critical patent/WO2018083350A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
    • H02H1/0015—Using arc detectors
    • 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
    • H02H3/02—Details
    • H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
    • H02H3/044—Checking correct functioning of protective arrangements, e.g. by simulating a fault

Definitions

  • the invention relates to a test device according to the preamble of
  • Residual current circuit breakers are used to protect against ground fault currents or differential currents.
  • circuit breakers are known, which should grant protection for high-frequency fault currents protection, or mixed fault currents.
  • devices for testing safety in electrical installation environments are not capable of doing so
  • Arc detectors or arc circuit breakers equipped. Particularly problematic to detect are in particular serial arcs. Since these cause neither a fault current nor an overcurrent, these are not recognized by the conventional circuit breakers, and can not be switched off accordingly, but represent a significant threat to the integrity of people and equipment due to the immense heat at the fault.
  • Known devices for testing such arc detectors cause a real arc at a real break in contact, and thus simulate a cable fault. This is associated with a wealth of disadvantages.
  • arcs are generated by means of special electrodes. The generated arcs therefore already differ from cable defects. The generated or producible arcs have considerable variations in their design, since it is a mechanical system.
  • the electrodes are subject to one
  • Arc detector is most important, they can therefore not be safely tested with these devices.
  • the object of the invention is therefore to provide a test device of the type mentioned above, with which the mentioned disadvantages can be avoided, with which protective switching device or fault detectors can be safely tested in an installation environment, reproducible and close to reality.
  • Arc detectors also differ from those used
  • test apparatus can be based on the different detection of different devices by using manufacturer-specific or device-specific test signals. This is an even more accurate
  • Figure 1 is a schematic representation of an electrical electrical installation with a protective switching device and a power outlet.
  • FIG. 2 is a block diagram of an objective test apparatus
  • FIG. 3 is a block diagram of a part of the test device according to FIG. 2.
  • FIG. 2 shows a block diagram of a test device 1 for the functional test of protective switching devices 28, in particular a fault current circuit breaker and / or arc protection switch, and / or fault detectors, in particular one
  • Safety plug 11 for connecting the test device 1 to a
  • test device 1 second electrical connection means 13, in particular a second safety plug 14, for connecting a load or bridge.
  • Arc detectors also differ from those used
  • Test device 1 can not only be checked as to whether relevant standards are met, but rather can be differentiated to the different detection Devices can be received by manufacturer-specific or device-specific test signals can be used. This is an even more accurate
  • electrical installation 12 is a by protective switching devices and / or
  • an electrical installation 12 is a low voltage electrical installation.
  • Low voltage is referred to as usual the range up to 1000V AC or 1500V DC.
  • test device 1 for a network consisting of outer conductor L and neutral conductor N is described, in particular, variants are also provided for three-phase networks, which are to expand or adapt accordingly
  • the protective switching devices 28 of the electrical installation 12 may be any type of protective switching device 28, wherein in particular the testing of
  • an error detector can be any type of
  • Error detector act, in particular, the testing of arc detectors is provided.
  • the test device 1 has first electrical connection means 10, which are designed in particular as first earthing contact plug 11, which, however, can also be designed as terminals or other contact means.
  • the first electrical connection means 10 are used to connect the test device 1 with the electrical installation 12, wherein it is preferably provided that the
  • Test device 1 for this purpose to a socket 21 of the electrical installation 12th
  • the test device 1 further has second electrical connection means 13, which are designed in particular as a second safety plug 14, which, however, also be designed as terminals or other contact means can.
  • the second electrical connection means 13 serve to connect a load or bridge to the test device 1.
  • the first connection means 10 are connected in terms of circuitry to the second connection means 13. It is provided in particular that a first outer conductor terminal 15 of the first connection means 10 with a second
  • Outer conductor terminal 16 of the second connection means 13 is connected, that a first neutral terminal 17 of the first connection means 10 is connected to a second neutral terminal 18 of the second connection means 13, and that a first protective conductor terminal 19 of the first connection means 10 with a second protective conductor terminal 20 of the second connection means 13 is connected is.
  • the test apparatus 1 has an amplifier 3 and a test signal memory 2, which are preferably arranged together in a signal-forming unit 27.
  • the signal-forming unit 27 may be a functional and / or structural unit.
  • test signal memory 2 at least indirectly test signals are stored.
  • at least indirect storage of the test signals is understood to mean that it is provided that test signals are stored digitally, wherein on the one hand can be provided to store a direct or uncompressed test signal,
  • test signal memory 2 It is particularly preferred that a large number of different test signals are stored in the test signal memory 2 in order to be able to test different electrical installations or different protective switching devices 28 or different detectors.
  • the individual preferred test signals are each described in the singular, wherein it is preferably provided that in each case a plurality of individually different test signals of the individual Test signal groups are stored in the test signal memory 2.
  • test signal memory 2 at least a first test signal for testing a residual current circuit breaker is stored.
  • a corresponding first test signal therefore preferably has high-frequency signal components up to 20 kHz with optionally superposed
  • the first test signal is designed for testing a residual current circuit breaker of a specifiable manufacturer, and is matched to the respective detection algorithm.
  • test signal memory 2 at least a second test signal for testing an arc detector on the detection of serial
  • Arcs is stored, which may be provided in particular to tune the second test signal to the detection algorithm of an arc detector of a predetermined manufacturer.
  • test signal memory 2 at least a third test signal for testing an arc detector is stored on the detection of parallel arcs between outer conductor and neutral conductor, which may be provided in particular, the third test signal on the
  • test signal memory 2 at least a fourth test signal for testing an arc detector is stored on the detection of parallel arcs between outer conductor and protective conductor, wherein
  • the fourth test signal may be provided on the
  • the second, third and fourth test signals particularly preferably have high-frequency signal components with frequencies of at least a few kilohertz up to a few
  • test signal memory 2 which corresponds to a real error of a real device. It records the current or
  • At least one sixth test signal is stored in the test signal memory 2, which at least one sixth test signal is such that it is not recognized as an error by the protective switching device 28 to be tested and / or the arc detector , Often, non-hazardous electrical conditions or, for example, transient processes cause them to be considered as dangerous faults by an electrical protective device
  • the protective measures can also be tested in such a way that they do not switch off in such everyday or harmless processes, or it can be ascertained which of such processes have become one
  • the at least one sixth test signal comprises a signal of a real electrical machine, in particular a DC motor with brushes, a frequency converter, a welding device and / or a dimmer.
  • At least one seventh test signal which stores the frequency of a locally prevailing network voltage, preferably 50 Hz, 60 Hz, 400 Hz and / or 16.6 Hz, is stored in the test signal memory 2. and preferably has the corresponding nominal voltages.
  • a device can be tested in such a way that it does not indicate an error under the standard conditions.
  • At least one eighth test signal is preferably provided, which preferably imitates the effects of a phase control, it being possible to provide that both corresponding test signals are involved a portion of the rising, as well as the falling edge are stored in the test signal memory 2.
  • each of the test signals is also tuned to specific manufacturers and / or specific devices of specific manufacturers.
  • the test signal memory 2 is at least indirectly connected to an amplifier 3 of the test device 1. It is preferably provided that between the test signal memory 2 and the amplifier, a signal generator 22 is arranged, which generates a test signal at only stored data or parameters, which is then supplied to the amplifier 3.
  • the amplifier 3 is preferably designed as a switching amplifier. Such amplifiers 3 are referred to in the audio technology as a Class D amplifier.
  • Switching amplifiers have a very high efficiency and, in addition, a large bandwidth or a high upper limit frequency can easily be realized with them as well as a high power supply capability. It is particularly preferred that an upper limit frequency of the amplifier 3 is preferably 25 MHz.
  • the amplifier 3 is designed as an amplifier module or as a discretely constructed amplifier 3 comprising active power semiconductor components. It is preferably provided that the test signals current strengths between 1 mA and 10 A, and the amplifier 3 is designed to be able to deliver such currents.
  • Test signal memory 2 functionally and / or structurally combined in the signal-forming unit 27. It is preferably provided that the test signal memory 2 is connected to an input means 25 for selecting a particular test signal. The test signal memory 2 is connected to the signal generator 22, which the output side is connected to the amplifier 3. At one of the
  • Amplifier outputs 4 of the amplifier 3 a shunt 23 is arranged, which is connected to a current measuring arrangement 26, which in turn is preferably connected to the signal generator 22, wherein the signal generator 22 is preferably adapted to predictably generated and output signals to synchronize with a phase of the current ,
  • a resistor 24 is arranged to limit the current.
  • the test apparatus 1 preferably has switching means for specifiable simulation of a serial error within the connection between the first
  • Signaling unit 27 to be arranged either serially in the outer conductor, in which case the second electrical connection means 13 must be short-circuited, or the signal-forming unit 27 between the outer conductor and the
  • Neutral conductor or to close the protective conductor which is provided to connect a test load to the second electrical connection means 13.
  • Fig. 2 shows a preferred embodiment of a test device 1 with corresponding switching means.
  • the switching means comprise a first changeover switch 5 and a second changeover switch 6, which for the circuit-wise serial arrangement of the amplifier 3 in the connection between the first
  • Outer conductor terminal 1 5 and second outer conductor terminal 16 are arranged.
  • the switching means a third
  • Switch 7 and a fourth switch 8 include, which for
  • Neutral terminal 17 and the first protective conductor terminal 19 are arranged.
  • the Switching means a fifth switch 9 for short-circuiting the second
  • Outer conductor terminal 16 with the second neutral terminal 18 include.
  • the first and the second change-over switch 5, 6 are closed in such a way that the direct current flow between them is interrupted and instead leads via the signal-forming unit 27.
  • this is to be switched correspondingly conductive, so that the current path is ensured by the signal forming unit 27 to the second switch 6, while this is interrupted for the fourth switch 8 out.
  • a bridge is to be placed on the second electrical connection means 13, which connects the second outer conductor connection 16 to the second neutral conductor connection 18, or to close the fifth changeover switch 9 in order to bridge the second electrical connection means 13 accordingly.
  • the first changeover switch 5 is connected in such a way that the current can flow both to the second changeover switch 6 and to the signal formation unit 27.
  • the second changeover switch 6 is switched such that the connection to the third changeover switch 7 is interrupted, while the current flow to the second electrical connection means 13 is ensured.
  • the third changeover switch 7 is switched such that the connection from the signal-forming unit 27 to the fourth change-over switch 8 is conductively closed.
  • the fourth changeover switch 8 is connected such that the third changeover switch 7 is conductively connected to the neutral conductor or the first or second neutral conductor connection 17, 18.
  • To the second electrical connection means 13 is to attach a test load.
  • the first changeover switch 5 In order to simulate a parallel fault between the outer conductor and the protective conductor, provision is made for the first changeover switch 5 to be connected such that the current can flow both to the second changeover switch 6 and to the signal-forming unit 27.
  • the second changeover switch 6 is switched such that the connection to the third changeover switch 7 is interrupted, while the current flow to the second electrical connection means 13 is ensured.
  • the third changeover switch 7 is switched such that the connection from the signal-forming unit 27 to the fourth change-over switch 8 is conductively closed.
  • the fourth switch 8 is connected in such a way the third changeover switch 7 is conductively connected to the protective conductor or the first or second protective conductor connection 19, 20.
  • To the second electrical connection means 13 To the second electrical connection means 13 is to attach a test load.
  • the first, second, third, fourth and / or fifth switch 5, 6, 7, 8, 9 are to be selected accordingly to ensure the described functionality. These can be designed as mechanical contacts and / or in solid state technology.
  • the switches 5, 6, 7, 8, 9 are preferably controlled by a correspondingly programmed control unit and / or a discrete logic circuit, so that it is only necessary for a user to select a specific operating mode.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Breakers (AREA)

Abstract

L'invention concerne un dispositif de test (1) servant à tester le fonctionnement de disjoncteurs (28), en particulier de disjoncteurs de courant de défaut et/ou de disjoncteurs d'arc électrique et/ou de détecteurs de défaillance, en particulier d'un détecteur d'arc électrique, notamment d'une installation électrique (12). Selon l'invention, le dispositif d'essai (1) présente une mémoire de signaux de test (2) dans laquelle des signaux de test sont mémorisés au moins indirectement, la mémoire de signaux de test (2) est connectée au moins indirectement à un amplificateur (3) du dispositif de test (1), les sorties (4) de l'amplificateur (3) sont connectées à de premiers moyens de raccordement électrique (10), en particulier à une prise de courant de sécurité (11), servant au raccordement du dispositif de test (1) à une installation électrique (12), et le dispositif de test (1) présente de seconds moyens de raccordement électrique (13), en particulier une seconde prise de courant de sécurité (14), servant au raccordement à une charge ou à un pont.
PCT/EP2017/078506 2016-11-07 2017-11-07 Dispositif de test du fonctionnement de disjoncteurs WO2018083350A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016121268.7A DE102016121268A1 (de) 2016-11-07 2016-11-07 Testvorrichtung zum Funktionstest von Schutzschaltgeräten
DE102016121268.7 2016-11-07

Publications (1)

Publication Number Publication Date
WO2018083350A1 true WO2018083350A1 (fr) 2018-05-11

Family

ID=60331598

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/078506 WO2018083350A1 (fr) 2016-11-07 2017-11-07 Dispositif de test du fonctionnement de disjoncteurs

Country Status (2)

Country Link
DE (1) DE102016121268A1 (fr)
WO (1) WO2018083350A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113482986A (zh) * 2021-06-23 2021-10-08 河北津西钢板桩型钢科技有限公司 液压控制阀的故障检测电路及设备
CN115276790A (zh) * 2022-05-26 2022-11-01 武汉光迅科技股份有限公司 一种测试光线路保护设备切换功能可靠性的装置和方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013014249A1 (fr) * 2011-07-26 2013-01-31 Eaton Industries (Austria) Gmbh Procédé d'adaptation d'un capteur d'arc électrique
US8599523B1 (en) * 2011-07-29 2013-12-03 Leviton Manufacturing Company, Inc. Arc fault circuit interrupter
DE102015200346A1 (de) * 2015-01-13 2016-07-14 Siemens Aktiengesellschaft Vorrichtungen und Verfahren fürLichtbogenschutzeinrichtungen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7471075B2 (en) * 1998-04-17 2008-12-30 Unique Technologies, Llc Multi-test Arc fault circuit interrupter tester
US6218844B1 (en) * 1998-12-16 2001-04-17 Square D Company Method and apparatus for testing an arcing fault circuit interrupter
US7005856B2 (en) * 2004-06-23 2006-02-28 Avo Multi-Amp Corporation Protective relay test device
WO2012136390A1 (fr) * 2011-04-08 2012-10-11 Atreus Enterprises Limited Appareil servant à tester un détecteur d'amorçage d'arc

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013014249A1 (fr) * 2011-07-26 2013-01-31 Eaton Industries (Austria) Gmbh Procédé d'adaptation d'un capteur d'arc électrique
US8599523B1 (en) * 2011-07-29 2013-12-03 Leviton Manufacturing Company, Inc. Arc fault circuit interrupter
DE102015200346A1 (de) * 2015-01-13 2016-07-14 Siemens Aktiengesellschaft Vorrichtungen und Verfahren fürLichtbogenschutzeinrichtungen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DOUGLAS A LEE ET AL: "New Technology for Preventing Residential Electrical Fires: Arc-Fault Circuit Interrupters (AFCIs)", FIRE TECHNOLOGY, vol. 36, no. 3, 1 August 2000 (2000-08-01), Boston, pages 145 - 162, XP055443662, ISSN: 0015-2684, DOI: 10.1023/A:1015410726786 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113482986A (zh) * 2021-06-23 2021-10-08 河北津西钢板桩型钢科技有限公司 液压控制阀的故障检测电路及设备
CN115276790A (zh) * 2022-05-26 2022-11-01 武汉光迅科技股份有限公司 一种测试光线路保护设备切换功能可靠性的装置和方法
CN115276790B (zh) * 2022-05-26 2023-06-27 武汉光迅科技股份有限公司 一种测试光线路保护设备切换功能可靠性的装置和方法

Also Published As

Publication number Publication date
DE102016121268A1 (de) 2018-05-09

Similar Documents

Publication Publication Date Title
EP2851692B1 (fr) Système de recherche de défaut d'isolation doté d'une alimentation à sélection de branchement et système de surveillance d'isolation sélectif ainsi que procédé de détermination d'une impédance de ligne inter-automatique entre deux sous-systèmes
EP3059828B1 (fr) Dispositif et procede de detection de courant differentiel
DE112012001189B4 (de) Verfahren, Systeme und Einrichtungen zum Erkennen paralleler elektrischer Fehlerlichtbögen
EP2737330B1 (fr) Procédé d'adaptation d'un capteur d'arc électrique
EP2574939B1 (fr) Appareil de détection de défauts d'isolation et dispositif de localisation de défauts d'isolation dans un réseau d'alimentation de courant non mis à la terre
EP3552289B1 (fr) Disjoncteur basse tension
EP3524985A1 (fr) Dispositif et procédé pour une surveillance de l'isolation à reconnaissance d'un conducteur extérieur défectueux dans un système d'alimentation électrique non mis à la masse triphasé
EP3403107B1 (fr) Procédé et dispositif de surveillance d'un court-circuit d'une charge triphasée
EP3435504A2 (fr) Procédé, ensembles de circuit électriques et appareils de surveillance de l'isolation pour une surveillance d'isolation résistante au brouillage d'un système d'alimentation électrique pourvu d'un convertisseur
DE102015214615A1 (de) Verfahren und Vorrichtungen zur erweiterten Isolationsfehlersuche mit multifunktionalem Prüfstrom
WO2018083350A1 (fr) Dispositif de test du fonctionnement de disjoncteurs
WO2009152540A1 (fr) Configuration d’installation électrique
EP2741089A2 (fr) Appareil de surveillance de l'isolation avec séparation du circuit de mesure
EP3696927A1 (fr) Dispositif et procédé de surveillance d'une pluralité de départs de courant dans un réseau électrique
EP2237057B1 (fr) Dispositif d'analyse destiné à l'analyse d'un réseau électrique
AT507102B1 (de) Schutzschalter
EP2904677B1 (fr) Circuiterie comprenant un onduleur
DE102018204041A1 (de) Brandschutzschalter für serielle Fehlerlichtbögen
EP2523304A1 (fr) Appareil de chargement de batterie et son procédé
DE102018204039A1 (de) Brandschutzschalter für serielle Fehlerlichtbögen
DE102012020718A1 (de) Verfahren zur Detektion und zum Abschalten eines elektrischen Kurzschlusses oder eines Lichtbogens und Energiespeicher
WO2023274505A1 (fr) Court-circuiteur
DE102014203257A1 (de) Verfahren und Vorrichtung zum Überwachen eines Anschlusszustands einer elektrischen Last an einer Ansteuerelektronik
WO2023222596A1 (fr) Procédé de test d'un câblage d'une installation électrique
EP4246150A1 (fr) Procédé et dispositif de surveillance pour déterminer une résistance d'isolation partielle et une capacité de dérivation partielle dans un système d'alimentation électrique non mis à la terre ramifié

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: 17798179

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17798179

Country of ref document: EP

Kind code of ref document: A1