EP0996956B1 - Überspannungsableiter für hoch- oder mittelspannung - Google Patents

Überspannungsableiter für hoch- oder mittelspannung Download PDF

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Publication number
EP0996956B1
EP0996956B1 EP98941275A EP98941275A EP0996956B1 EP 0996956 B1 EP0996956 B1 EP 0996956B1 EP 98941275 A EP98941275 A EP 98941275A EP 98941275 A EP98941275 A EP 98941275A EP 0996956 B1 EP0996956 B1 EP 0996956B1
Authority
EP
European Patent Office
Prior art keywords
housing
diverter
arrester
surface wave
wave sensor
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.)
Expired - Lifetime
Application number
EP98941275A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0996956A1 (de
Inventor
Volker Hinrichsen
Christian Korden
Matthias Schubert
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0996956A1 publication Critical patent/EP0996956A1/de
Application granted granted Critical
Publication of EP0996956B1 publication Critical patent/EP0996956B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
    • H01C7/12—Overvoltage protection resistors

Definitions

  • the invention relates to a method for monitoring of a surge arrester for high or medium voltage with an encapsulation housing, in which a measured variable, in particular the temperature inside the encapsulation housing is measured by means of a sensor in which the measured values transmitted to the outside as well as on by an antenna a surge arrester for performing the method.
  • a surge arrester is for example from the EP 0 388 779 A2 known.
  • Another surge arrester is from the Patent Abstract of Japan vol. 015, no. 067 (P-1167) known.
  • EP 0 716 489 is the use of surface wave sensors in High-voltage switchgear known.
  • the measurement of the heating of a spark gapless arrester can be used to monitor its aging condition.
  • the measurement also allows arresters with a spark gap the temperature statements about processes in the arrester.
  • the information about other company sizes of the arrester desirable inside the encapsulation housing can be determined.
  • the task arises of a procedure create a reliable monitoring of the arrester and a derivation of statements about the state of the arrester allowed after discharge operations, as well as a surge arrester to carry out the process of creating a particularly simple and convenient monitoring of his Operating condition and its aging condition, for example the temperature, the current, the gas pressure or the gas humidity allowed without losing the electrical Adversely affect properties.
  • the object is achieved in that by means of of a surface wave sensor is a measured variable, in particular measured the temperature in the interior of the encapsulation housing is that the measured values by means of an antenna to the outside transmitted and that with a sudden temperature increase of the arrester block is implemented in the arrester electrical energy from the temperature difference and the heat capacity is determined.
  • the surge arrester according to the invention has a surface wave sensor on that within at least one partially metallic housing is arranged, which in axial direction of the arrester block between two Diverter elements or between a diverter element and one Connection electrode is inserted.
  • a radio-questionable surface wave sensor is a passive, acoustic band element, to the outside, outside the encapsulation housing a signal from the arrester via an antenna radiated in the form of an electromagnetic wave can be received and dependent on an antenna of certain physical quantities, for example the ambient temperature of the surface wave sensor in modified Form is reflected back and through an antenna outside of the encapsulation housing can be taken up again.
  • the measured value for the measurand, especially the temperature inside the Encapsulation housing of the surge arrester is now available without any additional effort on a query device outside the Encapsulation housing, for example at the base of the arrester can be arranged for further processing and can for example by means of an optical fiber, via radio, or via another measuring line to a central data processing system can be forwarded.
  • the signals from different surface wave sensors can be reflected back by the individual Surface wave sensors are also encoded so that signals easily from several closely adjacent surge arresters can be distinguished and assigned accordingly.
  • the behavior of a surface wave sensor can fundamentally also due to a temporary overload of the sensor can be changed irreversibly. So can also a past overload based on the changed Behavior of the surface wave sensor determined become. This property can be used to register Use arrester overloads or total failures.
  • the leakage current determines be related to the voltage applied a statement about the state of aging and the expected Lifetime of the arrester allowed.
  • the one currently flowing can also flow Leakage current from a temporary heating of the arrester be determined.
  • the method according to the invention can be designed so that in the event of a sudden Temperature rise of the arrester block in the arrester converted electrical energy from the temperature difference and the heat capacity is determined.
  • the temperature values from the Surface wave sensor are continuously recorded.
  • a stationary one The interrogation unit then continuously emits signals to the Surface wave sensor off and receives the retroreflected Evaluation signals.
  • the individual surface wave sensors one Group of arresters only in the event of maintenance or periodically query.
  • An advantageous embodiment of the surge arrester according to the invention stipulates that walls or other Components of the housing form an antenna.
  • the metallic housing can typically be used as a hollow cylinder end caps are formed, for example made of aluminum.
  • the metallic housing can then, for example have at least one longitudinal slot that is parallel runs to the longitudinal axis of the arrester body and as Slot antenna for receiving and radiating signals acts between the interrogator and the surface wave sensor be replaced.
  • the current carrying capacity of the metallic Housing be designed so that the leakage current from this can be worn without the housing or the surface wave sensor can be damaged by overheating.
  • the housing can be used with the directly adjacent ones Discharge elements glued or contacted by spring pressure his.
  • the invention can also be advantageously configured in this way be that the housing is cylindrical and in the outer contour of the arrester block is fitted.
  • This configuration results in a high dielectric Stability without protruding edges that favor discharges could.
  • a further advantageous embodiment of the invention provides before that the surface wave sensor on an inner wall of the Housing is attached, which is a discharge element immediately is adjacent.
  • the surface wave sensor picks up without major delays the temperature of the adjacent discharge element so that the displayed temperature reliably matches the current one Represented arrester temperature.
  • the surface wave sensor in the gas space of the surge arrester outside the arrester block to arrange the temperature of the surge arrester or another measured variable, such as the gas density or Monitor gas moisture of a filling gas.
  • the surface wave sensor with the antenna dielectric favorable, d. H. without major field distortions of the electrical field is fitted.
  • a surge arrester 1 for high voltage is on one Foundation 2 set up. It consists of, among other things Encapsulating housing 3, which gas-tightly encloses an arrester block 4, and end fittings 5, 6, the encapsulation housing Complete 3 at both ends and field controls 7, 8.
  • the arrester block 4 consists of cylindrical arrester elements 15, 16, 17, 18 in the form of non-linear resistors, For example, zinc oxide resistors, which are axially Spring pressure compressed or glued or by conductive other means are held together.
  • the high voltage connection is arranged on the valve 5, while the earth connection is connected to the valve 6.
  • each a housing 18 of a surface wave sensor Represent 19 At the foot of the surge arrester 1, an interrogation unit 9 is shown, which has an antenna emits high-frequency electromagnetic waves, whereby the wave fronts are symbolically designated 10. This Waves are emitted by the antennas of the surface wave sensors accommodated in the housings 11, 12, 13 and after passing through of the respective surface wave sensor and one accordingly the measured value recorded in each case, for example the temperature change of the respective signal to the interrogation unit 9 retroreflected.
  • the back radiated Signals from the individual surface wave sensors recorded local measured value, in particular temperature value and saved.
  • the values can be measured using a measuring line 14 be forwarded to a control room.
  • the temperature of the arrester block on the corresponding Positions can be determined individually. With an increase of the arrester's quiescent current due to aging a gradual heating of the arrester takes place accordingly can be registered. Find this warming locally instead of unevenly, this indicates premature aging certain discharge elements.
  • a part of the arrester block is shown schematically in the detail in FIG 4 shown with discharge elements 15, 16, 17, 18.
  • a housing 18 is located between the diverter elements 16, 17 a surface wave sensor 19 is arranged.
  • the longitudinal slot 20 runs parallel to the axis of the arrester block 4. This Slot 20 acts as an antenna for reception and reflection the interrogation signals from the interrogation unit 9.
  • the housing 18 consists for example of aluminum or Steel and is so thick-walled that it is the leakage current from the diverter element 16 to the diverter element 17, without being thermally overloaded.
  • the surface wave sensor 19 is connected by means of its connecting lines two different points of the housing 18 conductively connected.
  • a "wraparound patch" or a stripline antenna to apply any shape to the housing 18 or to integrate into the outer wall of the housing 18, the is then conductively connected to the surface wave sensor 19 and serves to emit or receive the signals.
  • the cylindrical wall of the housing 18, as shown in Figure 5 at least partially as two conductive layers with one arranged between them Dielectric existing body be formed so that this Arrangement can also be used as an antenna.
  • the inner layer 23 is then made of solid metal and carries the leakage current.
  • Dielectric 24 for example PTFE applied, the outside is covered by a conductive layer 25.
  • the senior Layer is only at one end 26 of the housing with the solid metallic layer conductively connected.
  • FIG. 6 shows that an intermediate wall 27 the housing as part of it in the form of an antenna, for example, a slot antenna.
  • the housing can also be made as a cage parallel to the longitudinal axis of the arrester block of electrically conductive rods be trained.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Thermistors And Varistors (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Testing Relating To Insulation (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Emergency Protection Circuit Devices (AREA)
EP98941275A 1997-06-30 1998-06-30 Überspannungsableiter für hoch- oder mittelspannung Expired - Lifetime EP0996956B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19728961A DE19728961A1 (de) 1997-06-30 1997-06-30 Überspannungsableiter für Hoch- oder Mittelspannung
DE19728961 1997-06-30
PCT/DE1998/001858 WO1999001877A1 (de) 1997-06-30 1998-06-30 Überspannungsableiter für hoch- oder mittelspannung

Publications (2)

Publication Number Publication Date
EP0996956A1 EP0996956A1 (de) 2000-05-03
EP0996956B1 true EP0996956B1 (de) 2003-01-08

Family

ID=7834897

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98941275A Expired - Lifetime EP0996956B1 (de) 1997-06-30 1998-06-30 Überspannungsableiter für hoch- oder mittelspannung

Country Status (10)

Country Link
US (1) US6433989B1 (zh)
EP (1) EP0996956B1 (zh)
JP (1) JP3485578B2 (zh)
CN (1) CN1129145C (zh)
AT (1) ATE230894T1 (zh)
AU (1) AU744855B2 (zh)
BR (1) BR9810367A (zh)
DE (2) DE19728961A1 (zh)
RU (1) RU2195731C2 (zh)
WO (1) WO1999001877A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020249379A1 (de) 2019-06-12 2020-12-17 Siemens Aktiengesellschaft Überwachungsanordnung für ein elektrisches betriebsmittel und überwachungssystem

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29806355U1 (de) * 1998-03-31 1998-06-10 Siemens AG, 80333 München Hochspannungsgerät, insbesondere Überspannungsableiter
WO2001037215A1 (de) * 1999-11-18 2001-05-25 Siemens Aktiengesellschaft Mobiler datenträger mit einem transponder aus einem oberflächenwellenbauelement mit schlitzantenne
DE10000617A1 (de) 2000-01-10 2001-07-12 Abb Hochspannungstechnik Ag Ueberspannungsableiter
DE10063697B4 (de) 2000-12-20 2006-07-13 Siemens Ag Verfahren und Vorrichtung zur Erfassung der Position eines Elements in einem Fahrzeug, insbesondere für Insassenschutzsysteme
DE102006053986A1 (de) * 2006-11-10 2008-05-15 Siemens Ag Überspannungsableiter
DE102010050684B4 (de) * 2010-11-06 2015-01-22 Reinhausen Power Composites Gmbh Hochspannungsisolator
CN102033184B (zh) * 2011-01-20 2013-03-27 辽宁省电力有限公司 避雷器电压分布无线测量系统
DE102012210331B4 (de) 2012-06-19 2014-02-13 Siemens Aktiengesellschaft Überspannungsableiter für hohe Spannungen
DE102014114255B4 (de) * 2014-09-30 2018-05-30 Fibro Gmbh Vorrichtung und Verfahren zur serienmäßigen Bearbeitung und/oder Herstellung eines Werkstückes
EP3268711B1 (en) * 2015-03-10 2021-05-12 Hubbell Incorporated Temperature monitoring of high voltage distribution system components
DE102017200125B3 (de) * 2016-12-20 2018-03-01 Siemens Aktiengesellschaft Anordnung und Verfahren für eine Zustandsüberwachung eines Überspannungsableiters
DE102019108358A1 (de) * 2019-03-30 2020-10-01 Endress+Hauser SE+Co. KG Vorrichtung zur Übertragung von Signalen aus einem zumindest teilweise metallischen Gehäuse
WO2020240694A1 (ja) * 2019-05-28 2020-12-03 三菱電機株式会社 劣化判定装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54138480A (en) 1978-04-20 1979-10-26 Toshiba Corp Temperature detector
US4495459A (en) * 1982-09-20 1985-01-22 General Electric Company Surge arrester discharge counting apparatus
JPH02290571A (ja) * 1989-02-07 1990-11-30 Meidensha Corp 避雷器の劣化検出方法
NO167618C (no) 1989-03-20 1991-11-20 Alcatel Stk As Overspenningsavleder for elektriske apparater.
FR2685532B1 (fr) * 1991-12-20 1994-12-30 Soule Sa Parafoudre a proprietes mecaniques perfectionnees.
DE4200076A1 (de) * 1992-01-03 1993-08-05 Siemens Ag Passiver oberflaechenwellen-sensor, der drahtlos abfragbar ist
DE9420199U1 (de) * 1994-12-07 1995-02-09 Siemens AG, 80333 München Metallgekapselte Hochspannungsschaltanlage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020249379A1 (de) 2019-06-12 2020-12-17 Siemens Aktiengesellschaft Überwachungsanordnung für ein elektrisches betriebsmittel und überwachungssystem
US11906568B2 (en) 2019-06-12 2024-02-20 Siemens Energy Global GmbH & Co. KG Monitoring arrangement for electrical equipment, and monitoring system

Also Published As

Publication number Publication date
JP2000511362A (ja) 2000-08-29
JP3485578B2 (ja) 2004-01-13
WO1999001877A1 (de) 1999-01-14
US6433989B1 (en) 2002-08-13
DE59806875D1 (de) 2003-02-13
CN1261980A (zh) 2000-08-02
AU8972698A (en) 1999-01-25
ATE230894T1 (de) 2003-01-15
CN1129145C (zh) 2003-11-26
AU744855B2 (en) 2002-03-07
DE19728961A1 (de) 1999-02-04
EP0996956A1 (de) 2000-05-03
RU2195731C2 (ru) 2002-12-27
BR9810367A (pt) 2000-08-29

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