WO2009121770A1 - Schutzvorrichtung - Google Patents
Schutzvorrichtung Download PDFInfo
- Publication number
- WO2009121770A1 WO2009121770A1 PCT/EP2009/053507 EP2009053507W WO2009121770A1 WO 2009121770 A1 WO2009121770 A1 WO 2009121770A1 EP 2009053507 W EP2009053507 W EP 2009053507W WO 2009121770 A1 WO2009121770 A1 WO 2009121770A1
- Authority
- WO
- WIPO (PCT)
- 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
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
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP09727123A EP2272145A1 (de) | 2008-03-31 | 2009-03-25 | Schutzvorrichtung |
| US12/934,937 US20110102957A1 (en) | 2008-03-31 | 2009-03-25 | Protection Device |
| CN200980111470.2A CN101981777B (zh) | 2008-03-31 | 2009-03-25 | 保护设备 |
| RU2010143740/07A RU2472267C2 (ru) | 2008-03-31 | 2009-03-25 | Предохранительное устройство |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008016585A DE102008016585A1 (de) | 2008-03-31 | 2008-03-31 | Schutzvorrichtung |
| DE102008016585.9 | 2008-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2009121770A1 true WO2009121770A1 (de) | 2009-10-08 |
Family
ID=40802061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2009/053507 Ceased WO2009121770A1 (de) | 2008-03-31 | 2009-03-25 | Schutzvorrichtung |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20110102957A1 (de) |
| EP (1) | EP2272145A1 (de) |
| CN (1) | CN101981777B (de) |
| DE (1) | DE102008016585A1 (de) |
| RU (1) | RU2472267C2 (de) |
| WO (1) | WO2009121770A1 (de) |
Families Citing this family (6)
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2675320A1 (fr) * | 1991-04-15 | 1992-10-16 | Alcatel Cable | Ensemble de protection d'une ligne d'energie. |
| DE10049994A1 (de) * | 2000-10-10 | 2002-04-11 | Endress Hauser Gmbh Co | Schaltungsanordnung zum Überwachen und/oder zum Einstellen von Versorgungsspannungen |
| US20070002511A1 (en) * | 2005-02-10 | 2007-01-04 | Nisar Chaudhry | Meter-base surge protector |
Family Cites Families (18)
| 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 |
| 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 |
| JP3444286B2 (ja) * | 1998-09-07 | 2003-09-08 | セイコーエプソン株式会社 | スイッチの開閉状態検出装置および電子機器 |
| 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 |
| 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 |
-
2008
- 2008-03-31 DE DE102008016585A patent/DE102008016585A1/de not_active Ceased
-
2009
- 2009-03-25 EP EP09727123A patent/EP2272145A1/de not_active Ceased
- 2009-03-25 CN CN200980111470.2A patent/CN101981777B/zh not_active Expired - Fee Related
- 2009-03-25 US US12/934,937 patent/US20110102957A1/en not_active Abandoned
- 2009-03-25 WO PCT/EP2009/053507 patent/WO2009121770A1/de not_active Ceased
- 2009-03-25 RU RU2010143740/07A patent/RU2472267C2/ru active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2675320A1 (fr) * | 1991-04-15 | 1992-10-16 | Alcatel Cable | Ensemble de protection d'une ligne d'energie. |
| DE10049994A1 (de) * | 2000-10-10 | 2002-04-11 | Endress Hauser Gmbh Co | Schaltungsanordnung zum Überwachen und/oder zum Einstellen von Versorgungsspannungen |
| US20070002511A1 (en) * | 2005-02-10 | 2007-01-04 | Nisar Chaudhry | Meter-base surge protector |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008016585A1 (de) | 2009-10-01 |
| CN101981777A (zh) | 2011-02-23 |
| CN101981777B (zh) | 2014-03-26 |
| EP2272145A1 (de) | 2011-01-12 |
| US20110102957A1 (en) | 2011-05-05 |
| RU2010143740A (ru) | 2012-05-10 |
| RU2472267C2 (ru) | 2013-01-10 |
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