EP0436881B1 - Dérivateur de surtensions - Google Patents

Dérivateur de surtensions Download PDF

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Publication number
EP0436881B1
EP0436881B1 EP90124535A EP90124535A EP0436881B1 EP 0436881 B1 EP0436881 B1 EP 0436881B1 EP 90124535 A EP90124535 A EP 90124535A EP 90124535 A EP90124535 A EP 90124535A EP 0436881 B1 EP0436881 B1 EP 0436881B1
Authority
EP
European Patent Office
Prior art keywords
surge voltage
voltage arrester
plug
arrester according
defect
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
EP90124535A
Other languages
German (de)
English (en)
Other versions
EP0436881A1 (fr
Inventor
Manfred Balzer
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.)
Hermann Kleinhuis GmbH and Co KG
Original Assignee
Hermann Kleinhuis 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 Hermann Kleinhuis GmbH and Co KG filed Critical Hermann Kleinhuis GmbH and Co KG
Priority to AT90124535T priority Critical patent/ATE104095T1/de
Publication of EP0436881A1 publication Critical patent/EP0436881A1/fr
Application granted granted Critical
Publication of EP0436881B1 publication Critical patent/EP0436881B1/fr
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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T1/00—Details of spark gaps
    • H01T1/12—Means structurally associated with spark gap for recording operation thereof

Definitions

  • the invention relates to a surge arrester for electrical systems, consisting of a housing part and a plug-in element, the plug-in element being equipped with an actuator, a defect indicator and with contact tongues to which corresponding mating contact elements are assigned, with surge protection elements, such as varistors, being arranged between these contact tongues are.
  • Such a surge arrester is known for example from DE-C 36 39 533.
  • the surge arrester consists of an approximately U-shaped housing lower part with contact tongues on the legs of the lower part and an approximately cuboid housing upper part with contact rails or knives which can be inserted into the contact tongues and emerge on the narrow sides, the surge elements, such as varistors, between the latter are arranged and possibly in the upper part of a defect display.
  • slot guides are provided on the inner sides of the legs of the lower part for receiving the contact rails, so that the upper housing part can be inserted into the lower part from above.
  • a diaphragm which completely covers the thigh end faces, from which only the part of the upper housing part projecting beyond the lower housing part projects through, the defect indicator being arranged in the region of this end face of the upper housing part.
  • a surge arrester of the type of interest here which is equipped with a device for remotely displaying a defect. It is a device for monitoring the function of surge arresters with a defect indicator and a switching element which can be actuated by the defect indicator at least if the surge arrester fails.
  • the switching element consists of an electrical switch, a push rod which can be actuated and the push rod from one end position to the other adjusting position adjusting elements.
  • a separate actuator is assigned to each surge arrester, which can be actuated by the defect indicator element if the surge arrester is defective.
  • This known device cannot be provided with an additional defect indicator that can be used if necessary.
  • the invention is therefore based on the object, the known Surge arrester, while maintaining the previous advantages, in particular the compact design, to be provided with an additional defect indicator that can be used if necessary.
  • the surge arrester has an accommodation space which can optionally accommodate an additional module for remote display of the defect or a blind module, the additional module or the blind module being insertable into the accommodation space.
  • the additional module or the blind module being insertable into the accommodation space.
  • the accommodation space is integrated in the housing part of the surge arrester. This ensures that the additional or dummy module is easily accommodated in the surge arrester while maintaining the compact design, which enables the plug-in element to be removed without removing e.g. to be able to replace the additional module.
  • the housing part It is advisable to have the housing part have an approximately U-shaped shape and the plug-in element which is operatively connected to it has an approximately square shape.
  • the defect display is preferably arranged on the top of the insert element.
  • the insertion element has an unmistakable feature, preferably in the form of guide grooves of different widths located on its side walls, as a result of which it is secured against incorrect insertion.
  • the mating contact elements interacting with the contact tongues on the underside of the plug-in elements are designed as end sections of contact elements which are moved through the housing part and are arranged in the central region of the housing part.
  • the contact tongues of the interchangeable plug-in element can interact as easily as possible with corresponding mating contacts located in the housing part and can be connected to the electrical power connections via these.
  • the additional module has a switching device which interacts with the actuator of the plug-in element.
  • the additional module expediently has a through opening and an actuating element which is operatively connected to the switching device, and in the adjacent area the plug-in element likewise has a through opening for the wedge-shaped end of the actuator.
  • the actuator is rotatably mounted about a pin and is connected at its upper end to the defect indicator via a pin so that the defect that occurs can be displayed simultaneously with the remote indicator on the surge arrester itself via the defect indicator .
  • Surge arresters are also known from the prior art, which in connection with a defect indicating Actuator are equipped with a securing tape, the varistor located in the plug-in element being connected to the securing tape.
  • Another object of the invention is to improve such an embodiment in such a way that, with an increase in the flexibility of the securing tape, protection against large overvoltages (such as lightning) as well as protection against repeatedly occurring, small overvoltages is ensured.
  • the surge arrester equipped with a securing strap is designed such that the securing strap is designed to be flexible, S-shaped, is connected to the varistor in the plug-in element via a eutectic soldering point and also has an additional predetermined breaking point.
  • This flexible, S-shaped folded and not as previously flat design of the securing band ensures that, due to the increased flexibility of this securing band achieved through shape and material properties, the actuator can always perform a movement indicating the defect. Furthermore, such a configuration creates two tripping elements in series, so that both in the case of high-energy overvoltages, e.g. near lightning strikes, by destroying the predetermined breaking point in the securing band, and also in the event of repeated small overvoltages, since in this case the constantly increasing leakage current of the varistor melts the eutectic solder joint at a predetermined maximum temperature, the varistor is disconnected from the mains and the defect state is reported.
  • high-energy overvoltages e.g. near lightning strikes
  • the varistor melts the eutectic solder joint at a predetermined maximum temperature
  • the actuator It is advisable to have the actuator have a bolt in the area of its wedge-shaped end, which is connected to the securing band in the area of the predetermined breaking point, so that the actuator is constantly connected to the securing band as long as the predetermined breaking point has not been destroyed.
  • the blind module which can be inserted into the accommodation space as required, have a passage opening, so that even with the blind module inserted, the possibility of displaying a defective surge protection element in the plug-in element is retained via the defect indicator.
  • the surge arrester for electrical systems in particular low-voltage systems, which can be seen from FIG. 1 and is only one example of an embodiment of the invention, is generally designated 10 and essentially consists of an approximately U-shaped housing part 11, an approximately square plug-in element 12 and one on one
  • the housing part 13 provided on the side of the housing part 11, into which an additional module 14 for remote indication of a defect can be introduced if necessary and which is also designed to accommodate a blind module which cannot be seen in FIG. 1.
  • the U-shaped housing part 11 is provided on its underside 15 with various holding devices 16, 17 and 18 in order to allow the surge arrester 10 to be operatively connected to a guide rail, not shown in the figures of the drawings.
  • the approximately square insertion element 12 has a defect indicator 20 on its upper side 19 and is equipped on the opposite lower side 21 with two contact tongues 22 and 23 tapering in the plugging direction. Furthermore, on the side of the insertion element 12 facing the accommodation space 13 of the housing part 11, the underside 21 of which is arranged adjacent to the underside 21 of an end 24 protruding from this insertion element 12 of an actuator not shown in FIG. 1.
  • the additional module 14 shown in FIG. 1 has a substantially rectangular shape and has a support shoulder 25 lying on its back, which in the assembled state of the surge arrester 10 with a corresponding one in the area of the accommodation space 13 of the
  • the housing part 11 provided counter support shoulder 26 cooperates.
  • a guide web 27 is provided on the underside of the additional module 14 for the purpose of insertion into a corresponding recess 43 located on the housing part 11.
  • the U-shaped housing part 11 provided with the various holding devices 16, 17, 18 has a passage opening 30, 31 in the region of its side surfaces 28, 29 for connection to the electrical power connections.
  • contact elements 34, 35 on each side of the housing part 11 in receptacles 31, 33 which are provided for this purpose and which, in the embodiment shown in FIG. 2, have fastening means such as screws and cable clamps or the like interacting therewith. cooperate with the connecting cables in these receptacles 32, 33.
  • the contact elements 34, 35 are guided in the manner shown in FIG.
  • the contact tongues 22, 23 of the plug-in element 12 can be brought into operative connection with the end sections 36, 37 of the contact elements 34, 35 via passage openings 41, 42 located in the central region 40 of the housing part 11, which in turn are laterally offset from one another .
  • the contact element 35 is in the area of the holding devices 16 and 17 via unspecified Fastening means with an earth-side connecting element 69 in operative connection.
  • the support shoulder 25 located on the rear side of the additional module 14 then lies on the corresponding counter support shoulder 26 of the housing part 11.
  • the insert element 12 which interacts with the central region 40 of the housing part 11 and which cooperates in its upper region with a cover plate 44, is equipped in its interior with a commercially available varistor 45, which is therefore only shown schematically in the figures of the drawing, which comprises a silicon Has carbide powder disk 83 and two terminal contact tabs 46, 47 are provided at the end regions thereof. These terminal contact lugs 46, 47 interact in the manner to be described below, in particular from FIG. 6, with the contact elements 22 and 23 of the plug-in element 12.
  • the varistor 45 as can also be seen from FIG.
  • the actuator 5o is thus rotatably mounted about the pin 49 and, at its upper end 52, cooperates with a pin 54 integrally formed on the defect indicator 2o via an elongated recess 53, ie the defect indicator 2o can be adjusted via the upper end 52 of the actuator 5o .
  • the defect display 2o is provided in its externally visible side with different color markings and also interacts via the pin 54 with a tension spring 55, which is supported by a web 56 located on the insulating plate 48 and whose end opposite the defect display 2o with one the insulating plate 48 integrally formed further pin 57 cooperates.
  • the additional module 14 which can be inserted into the accommodation space 13 of the housing part 11 has a switching device 77 in its interior, with a plastic element 58 which is fastened by means of bolts 59 and 60.
  • An electrical contact 61 and 62 is embedded in this plastic element 58 on each side, between which a spring contact bracket 63 extends, also embedded in the plastic element 58. At its lower end, this cooperates with an over-center spring 64, which cooperates with a wedge-shaped plastic element 65 in the area adjacent to the passage opening 51 of the insertion element 12.
  • This plastic element 65 interacts via a passage opening 66 with the end 24 of the actuator 5o protruding from the insert element 12, that is to say that when this plastic element 65 is acted upon by the actuator 5o, which is set into a rotary movement via a change in state in the insert element 12, via the over-center spring 64
  • Spring contact bracket 63 from a first contact position with the contact 62 to a second contact position is transferred with the contact 61, so that the change in state which has been carried out in the plug-in element 12 and is visible on the defect display 20 can also be made visible on a remote display.
  • the contacts 61 and 62 and the spring contact bracket 63 are also on the side facing away from the dead center spring 64 via connection devices 67 provided in the area above the support shoulder 25 in the additional module 14, which can also be seen from FIG. 5 of the drawing, with the current-carrying leads connected, which can be inserted into the receptacles 68 provided for this purpose on the additional module 14 and fixed there with fastening means, which are not described in any more detail.
  • connection contact tab 46 is now, as can be seen from FIG. 6, connected via a eutectic soldering point 79 to a flexible securing tape 78, which has an approximately S-shaped shape and is adjacent to the end 24 of the actuator 5o in the area of the bottom 86 of the insert element 12 is arranged.
  • This securing band 78 has a predetermined breaking point 80 and acts in the area of this predetermined breaking point 80 with the wedge-shaped end 24 of the actuator 5o via a bolt 81.
  • the opposite end of the securing band 78 is in electrical contact with the end of the contact tongue 22 which is located within the plug-in element 12 and is also approximately L-shaped in cross section.
  • the other terminal contact lug 47 acts directly with the corresponding end of the other contact tongue 23 together.
  • the contact tongues 22, 23 are in turn, see also FIG. 2, attached to the rear wall of the plug-in element 12 by means of pins not shown in the figures of the drawing and act in the manner shown in FIG. 3 with those in the central region 4o of the housing part 11 located, jaw-like counter contact elements 75,76 together.
  • the two possible embodiments of the surge arrester 1o according to the invention are shown, namely once from FIG. 4 with the dummy module 7o inserted in the accommodation space 13, which on the side facing the insertion element 12 in the area of the passage opening 51 for the Wedge-shaped end 24 of the actuator 5o has a passage opening 82 so that a defect of the overvoltage protection element on the defect indicator 2o can be made visible even when the dummy module 70 is inserted, and secondly from FIG. 5 with the additional module 14 inserted into the interruption space 13. From these two Figures, and also in particular from FIG. 6, it can also be seen that the insertion element 12 has an unmistakable feature in the form of guide grooves 73, 74, of different widths, located on its side walls 71, 72.
  • this defect can be made visible via the defect display 2o when the dummy module 70 is inserted and via the defect display 2o and a remote display when the additional module 14 is inserted will.
  • the special configuration of the varistor 45 and the actuator 5o makes it operatively connected standing security band 78 or by the type of connection of these elements to each other that protection is guaranteed both in the case of high-energy overvoltages, such as near lightning strikes, as well as in the case of repeated, smaller overvoltages, since in one case the predetermined breaking point is destroyed and in in the other case, the eutectic soldering point melts, which then triggers the display of a defect using the means described.
  • the defective overvoltage protection element can then be replaced by an exchange of the plug-in element 12 without having to remove the cover plate 44 covering several surge arresters.
  • the illustrated embodiments are only examples of implementations of the invention, which is not restricted to this. Rather, there are still many changes and training options.
  • the additional module could be fixed in the surge arrester in a different way than shown in the figures of the drawing, and a different configuration of the housing part receiving the plug-in element is also conceivable.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Fuses (AREA)
  • Thermistors And Varistors (AREA)
  • Gas-Insulated Switchgears (AREA)

Claims (14)

  1. Dispositif de dérivation de surtensions pour des installations électriques, consistant en une partie de boîtier et en un élément enfichable, l'élément enfichable étant équipé d'un organe de réglage, d'un indicateur de défaut ainsi que de lames de contact auxquelles sont associés des éléments de contact conjugués correspondant, des éléments de protection contre les surtensions tels que des varistors étant disposés entre ces lames de contact, caractérisé en ce que le dispositif de dérivation de surtensions (10) comporte un logement (13) recevant au choix un module additionnel (14) pour la téléindication des défauts, ou un module inerte (70), le module additionnel (14) ou le module inerte (70) étant enfichable dans le logement.
  2. Dispositif de dérivation de surtensions selon la revendication 1, caractérisé en ce que le logement (13) est intégré dans la partie de boîtier (11) du dispositif de dérivation de surtensions (10).
  3. Dispositif de dérivation de surtensions selon la revendication 1 et/ou 2, caractérisé en ce que la partie de boîtier (11) présente une configuration sensiblement en forme de U et en ce que l'élément enfichable (12) coopérant avec celle-ci présente une forme sensiblement rectangulaire.
  4. Dispositif de dérivation de surtensions selon la revendication 3, caractérisé en ce que l'indicateur de défaut (20) est disposé sur la face supérieure (19) de l'élément enfichable (12).
  5. Dispositif de dérivation de surtensions selon la revendication 3 et 4, caractérisé en ce que l'élément enfichable (12) est équipé sur sa face inférieure opposée à l'indicateur de défaut (20) de deux lames de contact (22, 23).
  6. Dispositif de dérivation de surtensions selon la revendication 3, caractérisé en ce que l'élément enfichable (12) comporte un détrompeur réalisé de préférence sous la forme de deux rainures de guidage (73, 74), de largeur différente, se trouvant sur ses faces latérales (71, 72).
  7. Dispositif de dérivation de surtensions selon la revendication 1, caractérisé en ce que sur la face inférieure de la partie de boîtier (11), se trouvent des dispositifs de fixation (16, 17, 18), destinés à coopérer avec un rail de guidage.
  8. Dispositif de dérivation de surtensions selon la revendication 1, caractérisé en ce que les éléments de contact conjugués (75, 76) coopérant avec les lames de contact (22, 23) sont constitués par des tronçons d'extrémité (36, 37) des éléments de contact (34, 35) traversés par la partie de boîtier (11) et disposés dans la région médiane (40) de la partie de boîtier (11).
  9. Dispositif de dérivation de surtensions selon la revendication 1, caractérisé en ce que le module additionnel (14) comporte un organe de commutation (77) coopérant avec l'organe de réglage (50) de l'élément enfichable (12).
  10. Dispositif selon la revendication 9, caractérisé en ce que le module additionnel (14) comporte une ouverture de passage (66) ainsi qu'un élément d'actionnement (65) en liaison active avec l'organe de commutation (77) et comporte également, au voisinage immédiat de l'élément enfichable (12), une ouverture de passage (51) destinée au passage de l'extrémité en forme de cône (24) de l'organe de réglage (50).
  11. Dispositif de dérivation de surtensions selon la revendication 10, caractérisé en ce que l'organe de réglage (50) est monté pivotant autour d'une broche (49) et est relié de manière amovible à son extrémité supérieure (52) avec l'indicateur de défaut (20), par l'intermédiaire d'une broche ou cheville (54).
  12. Dispositif de dérivation de surtensions selon la revendication 1, muni d'un ruban de sécurité (78) relié à un varistor (45) se trouvant dans l'élément enfichable (12), caractérisé en ce que le ruban de sécurité (78) est réalisé flexible et replié en forme de S, est relié au varistor (45) par l'intermédiaire d'un point de soudure eutectique et comporte en outre un emplacement additionnel de rupture (80).
  13. Dispositif de dérivation de surtensions selon la revendication 12, caractérisé en ce que l'organe de réglage (50) comporte, dans la région de son extrémité en forme de cône (24), une broche (81) qui est reliée au ruban de sécurité (78) dans la zone de l'emplacement de rupture (80).
  14. Dispositif de dérivation de surtensions selon la revendication 1, caractérisé en ce que le module inerte (70) insérable en cas de besoin dans le logement (13), présente une ouverture de passage (82).
EP90124535A 1990-01-12 1990-12-18 Dérivateur de surtensions Expired - Lifetime EP0436881B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90124535T ATE104095T1 (de) 1990-01-12 1990-12-18 Ueberspannungsableiter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4000717A DE4000717C2 (de) 1990-01-12 1990-01-12 Überspannungsableiter
DE4000717 1990-01-12

Publications (2)

Publication Number Publication Date
EP0436881A1 EP0436881A1 (fr) 1991-07-17
EP0436881B1 true EP0436881B1 (fr) 1994-04-06

Family

ID=6397942

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90124535A Expired - Lifetime EP0436881B1 (fr) 1990-01-12 1990-12-18 Dérivateur de surtensions

Country Status (3)

Country Link
EP (1) EP0436881B1 (fr)
AT (1) ATE104095T1 (fr)
DE (2) DE4000717C2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ301709B6 (cs) * 2005-05-04 2010-06-02 Kiwa Spol. S R. O. Prepetová ochrana
CN101199029B (zh) * 2005-08-05 2011-03-30 基瓦斯珀尔有限公司 具有状态信号显示的过电压保护装置
CN101626156B (zh) * 2008-07-08 2013-12-25 菲尼克斯电气公司 过压保护元件
CZ304868B6 (cs) * 2011-04-01 2014-12-17 Saltek S.R.O. Svodič přepětí s výměnným modulem přepěťové ochrany

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FR2696588B1 (fr) * 1992-10-07 1994-12-09 Legrand Sa Limiteur de surtension à moyen indicateur de mise en défaut.
AT400781B (de) * 1993-11-02 1996-03-25 Felten & Guilleaume Ag Oester Überspannungsschutzvorrichtung
DE29519313U1 (de) 1995-12-06 1996-01-25 Dehn + Söhne GmbH + Co KG, 90489 Nürnberg Überspannungsableiter
FR2761543B1 (fr) * 1997-03-25 1999-06-04 Citel Dispositif de protection d'un circuit electrique basse tension, module pour un tel dispositif de protection, et circuit pour le module
AT406207B (de) * 1997-09-30 2000-03-27 Felten & Guilleaume Ag Oester Steckbarer überspannungsableiter
DE19843130A1 (de) * 1998-09-21 2000-04-20 Kleinhuis Hermann Gmbh Überspannungsableiter für elektrische Anlagen
DE10001667C1 (de) * 2000-01-03 2001-10-25 Dehn & Soehne Mehrpoliger Überspannungsableiter zum Einsatz in Niederspannungs-Stromversorgungssystemen
DE10125941B4 (de) * 2001-03-13 2009-09-17 Dehn + Söhne Gmbh + Co. Kg Kompaktanordnung für mehrpolige stoßstromfeste Überspannungsableiter
DE202004006227U1 (de) * 2004-04-16 2004-09-16 Phoenix Contact Gmbh & Co. Kg Überspannungsschutzgerät
EP1883935B1 (fr) 2005-05-04 2017-07-05 KIWA sk, s.r.o. Protection contre les surtensions
AU2006277738A1 (en) 2005-08-05 2007-02-15 Kiwa Spol. S R.O. Overvoltage protection with status signalling
DE102006000919A1 (de) * 2006-01-05 2007-07-19 Dehn + Söhne Gmbh + Co. Kg Steckbarer Überspannungsableiter mit einem oder mehreren Überspannungsschutzelementen
DE102006037551B4 (de) * 2006-02-13 2012-03-22 Dehn + Söhne Gmbh + Co. Kg Überspannungsableiter mit mindestens einem Ableitelement, beispielsweise einem Varistor
DE102009004758B4 (de) 2008-05-30 2018-09-20 Dehn + Söhne Gmbh + Co. Kg Überspannungsableiter mit mindestens einem Ableitelement
CZ308826B6 (cs) * 2009-10-19 2021-06-23 KIWA sk, s.r.o Zařízení pro přepěťovou ochranu
DE102010021246A1 (de) * 2010-05-21 2011-11-24 Pero Nilovic Elektrischer Varistorschutz
LU93258B1 (de) * 2016-10-11 2018-05-30 Phoenix Contact Gmbh & Co Kg Intellectual Property Licenses & Standards Sammelfernmeldevorrichtung
DE102018208725A1 (de) * 2018-06-04 2019-12-05 Phoenix Contact Gmbh & Co. Kg Überspannungsschutzgeräte-Ensemble

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DE3639533A1 (de) * 1986-11-20 1988-06-01 Bettermann Obo Ohg Steckbarer ueberspannungsableiter fuer elektrische anlagen
DE8811986U1 (de) * 1987-10-24 1988-11-10 OBO Bettermann oHG, 5750 Menden Vorrichtung zur Funktionsüberwachung von Überspannungsableitern
DE3736053A1 (de) * 1987-10-24 1989-05-11 Bettermann Obo Ohg Vorrichtung zur funktionsueberwachung von ueberspannungsableitern
DE3805890C2 (de) * 1987-10-24 1995-11-23 Bettermann Obo Ohg Vorrichtung zur Funktionsüberwachung von Überspannungsableitern

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ301709B6 (cs) * 2005-05-04 2010-06-02 Kiwa Spol. S R. O. Prepetová ochrana
CN101199029B (zh) * 2005-08-05 2011-03-30 基瓦斯珀尔有限公司 具有状态信号显示的过电压保护装置
CZ304697B6 (cs) * 2005-08-05 2014-09-03 Kiwa, Spol. S R.O. "V Reštrukturalizácii" Přepěťová ochrana
CN101626156B (zh) * 2008-07-08 2013-12-25 菲尼克斯电气公司 过压保护元件
CZ304868B6 (cs) * 2011-04-01 2014-12-17 Saltek S.R.O. Svodič přepětí s výměnným modulem přepěťové ochrany

Also Published As

Publication number Publication date
EP0436881A1 (fr) 1991-07-17
DE4000717A1 (de) 1991-07-18
DE4000717C2 (de) 1994-12-01
ATE104095T1 (de) 1994-04-15
DE59005271D1 (de) 1994-05-11

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