EP2272145A1 - Dispositif de protection - Google Patents

Dispositif de protection

Info

Publication number
EP2272145A1
EP2272145A1 EP09727123A EP09727123A EP2272145A1 EP 2272145 A1 EP2272145 A1 EP 2272145A1 EP 09727123 A EP09727123 A EP 09727123A EP 09727123 A EP09727123 A EP 09727123A EP 2272145 A1 EP2272145 A1 EP 2272145A1
Authority
EP
European Patent Office
Prior art keywords
predetermined
voltage
protective
protection
measuring
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
EP09727123A
Other languages
German (de)
English (en)
Inventor
Norbert Kasper
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weidmueller Interface GmbH and Co KG
Original Assignee
Weidmueller Interface GmbH and Co KG
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 Weidmueller Interface GmbH and Co KG filed Critical Weidmueller Interface GmbH and Co KG
Publication of EP2272145A1 publication Critical patent/EP2272145A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H02H9/042—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage comprising means to limit the absorbed power or indicate damaged over-voltage protection device
    • 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 protective device for protecting an electrical system according to the type specified in the preamble of claim 1.
  • the protection device in question protects an electrical system against impairment and / or destruction by a disturbance event.
  • a malfunction event is understood to be an event by which electrical energy is applied to an electrical system in such a way that the electrical system is impaired or destroyed in its proper function.
  • Examples of interference events are lightning strikes or static discharges as a result of which overvoltage pulses and / or overcurrent pulses, for example galvanic, inductive or capacitive, are coupled into the electrical system and impair or destroy its function.
  • a disadvantage of the known protection devices is that they require a relatively high effort in monitoring, inspection and / or maintenance. This effort is particularly high in complex, for example multi-level, protective devices.
  • the invention solves the problem with a protective device with the features of claim 1. It also provides the method according to spoke 11th According to the invention, a number of protective elements, for example gas absorbers, varistors, suppressor diodes and possibly other protective devices having a diagnostic device are monitored / checked in such a way that this monitoring checks the entire protective device so that monitoring / checking of individual protective elements is not more is needed.
  • a number of protective elements for example gas absorbers, varistors, suppressor diodes and possibly other protective devices having a diagnostic device are monitored / checked in such a way that this monitoring checks the entire protective device so that monitoring / checking of individual protective elements is not more is needed.
  • FIG. 1 a schematic representation of a protective device according to the invention in the form of an electrical circuit
  • FIG. 2 a schematic representation of an exemplary voltage curve
  • Fig. 1 shows an exemplary protection device 1 for protecting electrical systems against interference events.
  • both spark gaps are housed in the present embodiment in a designated FS component.
  • This part of the protection device is used as a coarse contactor and "destroyed" most of the injected by a disturbance event in the protection device 1 energy.
  • the remaining part of the protective device 1 is referred to as fine protection and serves primarily to limit the voltages occurring to a safe level for the electrical system to be protected.
  • An input terminal El is connected via a resistor Rl to an output terminal Al. Parallel to the output terminal A1 and to an output terminal A3 at PE potential is a suppressor diode SD1. Accordingly, an input terminal E2 is connected via a resistor R2 to an output terminal A2, parallel to the output terminal A2 and lying at PE potential output terminal A3 is a suppressor diode SD2.
  • the number of protection levels - ie coarse and fine protection - is not limited to two levels, furthermore, the number of branches described above is not limited to two. This structure is only to be understood as an example and, depending on the application, can vary and be extended / changed without departing from the scope of the present invention.
  • An unillustrated, against interference events to be protected electrical system such as a measuring amplifier or an industrial PC, is connected via the output terminals Al to A3 to the protection device.
  • the input terminals El-E3 are in turn connected to signal sources and / or to devices supplying electrical energy, for example an electrical supply network.
  • the installation and interconnection of the protective device 1 and the electrical system to be protected takes place in such a way that, in the event of an interference event, coupled-in electrical energy is coupled in on the input side of the protective device 1.
  • an interference event occurs, electrical energy is coupled into the protective device 1.
  • currents through protective elements here the illustrated and labeled FS, SDl and SD2 components, which can lead to the destruction of these protective elements, if these currents are above the permissible values for each element.
  • Such values may relate to the duration and / or the value of a stream.
  • the protective device 1 has a schematically represented diagnostic device 2 for detecting the functional state of the protective device 1, wherein the diagnostic device 2 has an interference event detection device (not shown) for detecting interference events and a measuring device (not shown) for detecting voltage s between a first measuring point and a second measuring point ,
  • the first measuring point 3 is electrically at the potential of the output terminal A3
  • the second measuring point 4 is electrically at the potential of the output terminal A4.
  • residual voltage - see voltage arrow U R - The voltage detected between these two measuring points or the voltage curve detected in this way is referred to below as residual voltage - see voltage arrow U R -.
  • the measuring device detects / measures the voltage profile continuously, at specific time intervals and / or at fixed times.
  • the interference event detection device detects an interference event based on predetermined characteristics, for example based on a specific slope, a specific voltage value and / or a specific voltage value range.
  • predetermined features are predetermined and determined depending on the protective elements used (FS, SD1, SD2). Furthermore, the features by which a disturbance event is detected can become with timings.
  • a specific gradient, a specific voltage value or a specific voltage value range must be detected for a specific period of time so that the interferers Event detection device detects a disturbance event.
  • This temporal link can also depend on the protective elements used (FS, SD1, SD2).
  • the measuring device equipped for this purpose with the necessary means checks whether the voltage curve satisfies a number of predetermined criteria. If the voltage curve satisfies the number of predetermined criteria, then the diagnostic recognition device 2 recognizes the functional state of the protective device 1 as functional, if the voltage curve does not satisfy the number of predeterminable criteria, then the diagnostic recognition device 2 recognizes the functional state of the protective device 1 as non-functional.
  • the number of predeterminable and predetermined criteria may include a variety of individual criteria. These may in turn relate to gradients, voltage values and voltage ranges and depend on the protective elements used and / or the electrical system to be protected.
  • FIG. 2 shows by way of example a voltage profile detected by the measuring device between two measuring points 3, 4.
  • the invention will be explained in particular with reference to the example of a voltage characteristic curve which relates to a voltage value range.
  • the voltage curve is shown in a coordinate system, where the horizontal axis (t in ⁇ S) represents the time axis and the vertical axis (U in volts) the voltage axis.
  • an upper voltage value 6 here 70V by way of example
  • a lower voltage value 7 here 50V
  • the diagnostic device recognizes in this case the functional state of the protective device as functional.
  • a criterion relating to a time period may be required to detect the functionality, for example, that a certain voltage values must be maintained for a certain period of time (t 2 -U) as shown in FIG. 2, or that a voltage curve is maximum for a certain period of time may run in a certain voltage range.
  • the measuring device can be useful to configure the measuring device such that the measurements carried out for detecting the voltage curve are carried out at predeterminable time intervals, for example every 10 milliseconds, and / or to carry out the measurements at specific fixed times.
  • a predetermined functional state is detected by the diagnostic device 2
  • this state can be displayed by a display device, for example a light-emitting diode, or via a signaling device, for example a bistable relay with a switched NC contact, and / or forwarded to further, possibly higher-level electrical devices for further processing become.
  • a display device for example a light-emitting diode
  • a signaling device for example a bistable relay with a switched NC contact

Landscapes

  • Measurement Of Current Or Voltage (AREA)
  • Protection Of Static Devices (AREA)
  • Safety Devices In Control Systems (AREA)

Abstract

L'invention concerne un dispositif de protection (1) équipé d'au moins un élément de protection (FS, SD1, SD2) destiné à protéger un système électrique d'une avarie et/ou destruction suite à un événement perturbateur. Le dispositif de protection (1) comporte un appareil de diagnostic (2) permettant de détecter l'état de fonctionnement du dispositif de protection (1) à l'aide d'un appareil de mesure et d'un appareil de détection d'événement perturbateur. L'appareil de mesure saisit l'allure d'une tension entre un premier et un deuxième point de mesure (3, 4) et, lorsque l'appareil de détection d'événement perturbateur détecte un événement perturbateur à l'aide d'un certain nombre de caractéristiques prédéfinies, l'appareil de mesure vérifie si l'allure de la tension satisfait à un certain nombre de critères prédéfinis. Le dispositif de protection (1) est reconnu en état de fonctionnement par l'appareil de diagnostic (2) lorsque l'allure de la tension saisie par l'appareil de mesure satisfait le nombre de critères prédéfinis, et le dispositif de protection (1) n'est pas reconnu en état de fonctionnement par l'appareil de diagnostic (2) lorsque l'allure de la tension saisie par l'appareil de mesure ne satisfait pas le nombre de critères prédéfinis.
EP09727123A 2008-03-31 2009-03-25 Dispositif de protection Ceased EP2272145A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008016585A DE102008016585A1 (de) 2008-03-31 2008-03-31 Schutzvorrichtung
PCT/EP2009/053507 WO2009121770A1 (fr) 2008-03-31 2009-03-25 Dispositif de protection

Publications (1)

Publication Number Publication Date
EP2272145A1 true EP2272145A1 (fr) 2011-01-12

Family

ID=40802061

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09727123A Ceased EP2272145A1 (fr) 2008-03-31 2009-03-25 Dispositif de protection

Country Status (6)

Country Link
US (1) US20110102957A1 (fr)
EP (1) EP2272145A1 (fr)
CN (1) CN101981777B (fr)
DE (1) DE102008016585A1 (fr)
RU (1) RU2472267C2 (fr)
WO (1) WO2009121770A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012004716B4 (de) 2012-03-07 2021-02-11 Dehn Se + Co Kg Schaltungsanordnung zur Zustandskontrolle und Protokollierung von Überspannungsschutzgeräten oder Überspannungsschutzanlagen
US9869997B2 (en) * 2013-02-15 2018-01-16 General Electric Company Protection monitoring system with fault indicators
RU2533184C1 (ru) * 2013-05-31 2014-11-20 Открытое акционерное общество "Научно-исследовательский институт вычислительных комплексов им. М.А. Карцева" Комбинированное сетевое защитное устройство
CN103427391B (zh) * 2013-08-30 2017-02-22 许继集团有限公司 微机保护中浪涌干扰的识别方法
DE102015014468A1 (de) 2015-02-12 2016-08-18 DEHN + SÖHNE GmbH + Co. KG. Mehrstufige, koordinierte Überspannungsableiterschaltung
DE102017111204A1 (de) 2017-05-23 2018-11-29 Harting Electric Gmbh & Co. Kg Adapter für Steckverbinder

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU610220A1 (ru) * 1976-08-03 1978-06-05 Предприятие П/Я В-2015 Устройство дл релейной защиты от повреждени участка сети автономной электроэнергетической системы
US4577148A (en) * 1982-12-17 1986-03-18 Westinghouse Electric Corp. Surge arrester equipped for monitoring functions and method of use
US4758920A (en) * 1987-03-02 1988-07-19 Oneac Corporation Telephone and data overvoltage protection apparatus
US4941063A (en) * 1988-03-04 1990-07-10 Oneac Corporation Telephone lines overvoltage protection apparatus
SU1621119A1 (ru) * 1988-08-08 1991-01-15 Специальное Проектно-Конструкторское И Технологическое Бюро По Комплектным Низковольтным Устройствам Защиты И Системной Автоматики Для Энергетики Светосигнальное предохранительное устройство
FR2657994B1 (fr) * 1990-02-08 1992-04-17 Merlin Gerin Parafoudre deconnectable pour reseau a basse tension.
GB9021222D0 (en) * 1990-09-28 1990-11-14 Raychem Ltd Circuit protection device
US5493469A (en) * 1991-01-18 1996-02-20 Mildred A. Lace Surge protection for data lines
FR2675320B1 (fr) * 1991-04-15 1993-06-11 Alcatel Cable Ensemble de protection d'une ligne d'energie.
DE4127392A1 (de) * 1991-08-19 1993-02-25 Siemens Ag Anordnung zur ueberwachung einer strom- und/oder spannungsbegrenzung
JPH10164280A (ja) * 1996-12-05 1998-06-19 Fujitsu Ltd 給電断検出回路及び局内装置
AT405114B (de) * 1997-02-12 1999-05-25 Felten & Guilleaume Ag Oester Ableitertrennschalter
US5914662A (en) * 1998-01-23 1999-06-22 Current Technology, Inc. Circuit and method for indicating the remaining suppressing capacity of a multiple-element transient-voltage protection device
US6088446A (en) * 1998-05-06 2000-07-11 Actiontec Electronics, Inc. Protection circuit for use with a telephone appliance and methods of use
US6353522B1 (en) * 1998-09-07 2002-03-05 Seiko Epson Corporation Switching state detecting device for switch, and electronic apparatus
DE10049994A1 (de) * 2000-10-10 2002-04-11 Endress Hauser Gmbh Co Schaltungsanordnung zum Überwachen und/oder zum Einstellen von Versorgungsspannungen
JP2004297849A (ja) * 2003-03-25 2004-10-21 Sanyo Electric Co Ltd 基地局装置、基地局装置の試験方法および試験プログラム
DE102004061909B3 (de) * 2004-12-22 2006-06-14 Siemens Ag Schaltungsanordnung und Verfahren zum Erfassen des Zustandes eines Schaltungsschutzelementes
US20070002511A1 (en) * 2005-02-10 2007-01-04 Nisar Chaudhry Meter-base surge protector
JP4756904B2 (ja) * 2005-05-09 2011-08-24 東日本旅客鉄道株式会社 波形測定方法及びこれを用いた保安器の劣化検出装置
US7613949B1 (en) * 2006-06-30 2009-11-03 Boone Lewis A Fault isolation system and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009121770A1 *

Also Published As

Publication number Publication date
CN101981777A (zh) 2011-02-23
RU2010143740A (ru) 2012-05-10
US20110102957A1 (en) 2011-05-05
WO2009121770A1 (fr) 2009-10-08
DE102008016585A1 (de) 2009-10-01
CN101981777B (zh) 2014-03-26
RU2472267C2 (ru) 2013-01-10

Similar Documents

Publication Publication Date Title
EP3469620B1 (fr) Répartiteur de courant et système de sécurité pour un véhicule
WO2009121770A1 (fr) Dispositif de protection
EP2104974B1 (fr) Dispositif de protection contre les surtensions pour un appareil électronique
EP2272146B1 (fr) Dispositif de protection
EP2182605B1 (fr) Agencement de commutation pour la protection de dispositifs électroniques contre des tensions logiques erronées
DE102015107718B4 (de) Vorrichtung und Verfahren zum Absichern einer Bordnetz-Komponente eines Fahrzeug-Bordnetzes
EP3745596B1 (fr) Circuit d'entrée numérique permettant de recevoir des signaux d'entrée numérique d'au moins un émetteur de signaux
EP2274760B1 (fr) Circuit électrique comprenant un moyen de signalisation
DE102011089147B4 (de) Verfahren und Vorrichtung zum Betreiben einer Auslösevorrichtung für Insassenschutzmittel
EP2277154A1 (fr) Dispositif de surveillance destiné à surveiller le fonctionnement d'un système de signalisation, système de signalisation et procédé de surveillance
DE19625408B4 (de) Schaltungsanordnung zur Erdungsüberwachung und zum Schutz vor gefährlichen Körperströmen, insbesondere für Geräte mit vorgeschriebenem Potentialausgleich in TT-Netzen, sowie eine Verwendung hierfür
DE102008028631B4 (de) Leitungsüberwachung von Rauchschaltern
BE1029560B1 (de) Fehlerstromüberwachung für ein Gleichspannungsschaltgerät
DE102009036423A1 (de) Verbrennungssystem, Gasfeuerungsautomat, sowie Vorrichtung und Verfahren zur Unterbrechung einer Brennstoffzufuhr hierfür
DE102010011043A1 (de) Vorrichtung und Verfahren zum Schutz eines elektrischen Verbrauchers vor Spannungsspitzen in einem Kraftfahrzeug
DE102008023010A1 (de) Einrichtung und Verfahren zur Überwachung einer Schutzvorrichtung
DE202019001241U1 (de) Überspannungsschutzschaltung mit Ausfallanzeige
EP2266176B1 (fr) Dispositif de surveillance
DE102012222782A1 (de) Schaltvorrichtung mit Überspannungsschutz
DE102012215466B4 (de) Schalter, insbesondere Leistungsschalter für Niederspannungen einer Energieverteilungsanlage
DE102007019183B4 (de) Schaltanordnung mit mindestens einem Sensor und mit einer Auswerteeinheit
WO2010063490A1 (fr) Dispositif de surveillance de thyristors
DE202015008521U1 (de) Elektrisches Versorgungsnetz
EP4119957A1 (fr) Procédé de surveillance d'un dispositif de protection
DE19651964C2 (de) Verfahren zum Erkennen gefährlicher Fremdspannungen auf den Adern von Teilnehmerleitungen, über die Teilnehmerendgeräte an ihre Teilnehmeranschlußschaltung einer Fernmeldevermittlungsstelle angeschlossen sind

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20101025

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20160426

REG Reference to a national code

Ref country code: DE

Ref legal event code: R003

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20170112