EP0041917A2 - Transformateur de tension inductif entièrement isolé pour un appareillage de commutation à haute tension à enveloppe métallique - Google Patents

Transformateur de tension inductif entièrement isolé pour un appareillage de commutation à haute tension à enveloppe métallique Download PDF

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Publication number
EP0041917A2
EP0041917A2 EP81730049A EP81730049A EP0041917A2 EP 0041917 A2 EP0041917 A2 EP 0041917A2 EP 81730049 A EP81730049 A EP 81730049A EP 81730049 A EP81730049 A EP 81730049A EP 0041917 A2 EP0041917 A2 EP 0041917A2
Authority
EP
European Patent Office
Prior art keywords
voltage
converter according
voltage converter
metal
pressure plate
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.)
Granted
Application number
EP81730049A
Other languages
German (de)
English (en)
Other versions
EP0041917B2 (fr
EP0041917A3 (en
EP0041917B1 (fr
Inventor
Jürgen Dr.-Ing. Moeller
Manfred Dr.-Ing. Weniger
Werner Keil
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Priority to AT81730049T priority Critical patent/ATE12437T1/de
Publication of EP0041917A2 publication Critical patent/EP0041917A2/fr
Publication of EP0041917A3 publication Critical patent/EP0041917A3/de
Application granted granted Critical
Publication of EP0041917B1 publication Critical patent/EP0041917B1/fr
Publication of EP0041917B2 publication Critical patent/EP0041917B2/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase AC
    • H01F38/24—Voltage transformers
    • H01F38/26—Constructions

Definitions

  • the invention is based on an inductive voltage converter for a fully insulated, metal-enclosed high-voltage switchgear assembly with a boiler that can be flanged onto the metal capsule of the switchgear assembly, in which the active system of the voltage converter is located and in which a high-voltage supply line ends.
  • the high-voltage winding of the active system is encompassed by an annular high-voltage electrode.
  • a high-voltage lead is mechanically and electrically connected to the high-voltage electrode.
  • the high-voltage supply line is fastened in a boiler isolator.
  • the invention has for its object to improve an inductive voltage converter for a fully insulated, metal-encapsulated high-voltage switchgear so that mechanical damage to the converter cannot occur even under abnormal operating conditions with an impending large current through the primary winding.
  • a resistance device is located in the boiler, and the resistance device extends from the high-voltage feed line to the active system.
  • the invention is based on the knowledge that, in particular, inductive voltage transformers connected to cables can be subjected to such a large current on the primary side during discharge processes that not only: thermal, but also mechanical overloading of the voltage converter occurs; the mechanical overload can become so great that the entire inductive voltage converter is permanently damaged. '' If a resistance device is installed in the boiler of an inductive voltage converter for fully insulated, metal-encapsulated high-voltage switchgear, which extends from the high-voltage supply line to the active system, the current through the primary winding of the voltage converter is reduced and mechanical overload is avoided.
  • the boiler of the .voltage converter does not need to be enlarged because of the resistance device, because it is generally between the active system and that facing the switchgear There is sufficient space at the end of the boiler to accommodate the resistance device.
  • the resistance device in the inductive voltage converter according to the invention can be designed in different ways. For high-voltage reasons and above all to achieve a resistance device with the highest possible mechanical strength. However, it has proven to be advantageous if the resistance device consists of a columnar structure of a plurality of mass resistance elements which are held together by means of pressure plates located at the ends of the columnar structure; one pressure plate is attached to the high-voltage supply line and the other pressure plate is connected to the active system.
  • the one pressure plate advantageously carries a threaded pin which is received by a threaded hole in the high-voltage supply line.
  • a plug device is attached to the active system at the point facing the resistance device, and the other pressure plate has a recess; the plug device engages in the recess.
  • a plug connection then only has to be made at the point between the resistance device and the active system.
  • the recess in the other pressure plate is cylindrical and extends funnel-shaped towards the active system.
  • the resistance device according to the invention can in principle be used in all inductive voltage converters for fully insulated, metal-encapsulated high-voltage switchgear, regardless of the particular structure or design of the active system.
  • the high voltage electrode may be provided in a structurally simple manner with the connector device, so that, overall, a simple construction is achieved despite the use of horrsein- T ichtung.
  • the resistance device itself can be designed in different ways. It is considered to be particularly advantageous if there is a round metal disc between two successive resistance elements in the columnar structure, which is provided with two equally high pressures on different sides; the press-in is cyclically offset in successive metal disks in the lateral direction such that a helical arrangement of the mass resistance elements is created.
  • the main advantage of a resistance device designed in this way is that a relatively low overall height can be achieved with it, which is particularly advantageous in view of the limited space in the boiler of an inductive voltage converter.
  • a helical arrangement of resistance elements with intermediate, round metal disks is known (DE-PS 10 15 909 and FR-PS 1 318 052), but the known arrangements are not series resistors for inductive voltage converters, but rather specially designed surge arresters.
  • the metal disks on each side have the press-in diametrically opposite at least one further press-in for receiving an insulating spacer.
  • two further press-ins are provided, as a result of which the individual metal disks press against one another when pressure is exerted on the pressure plates, forming a straight columnar structure.
  • the metal disks also advantageously have three through holes offset by 120 °, through which a clamping bolt made of insulating material is guided; the clamping bolts clamp the pressure plates together. In this way, a mechanically fixed configuration of the resistance device is achieved.
  • the clamping bolts made of insulating material are advantageously held in one pressure plate by pins which engage in transverse bores of the clamping bolts.
  • the clamping bolts advantageously carry threaded bushes onto which nuts are screwed for bracing.
  • the active system 2 of the inductive voltage converter is accommodated in a boiler 1, which is only partially shown in FIG. 1.
  • a boiler 1 which is only partially shown in FIG. 1.
  • an iron core 3 and a high-voltage electrode 4 are shown in FIG. 1, which have an unrecognizable high-voltage winding on the outside includes.
  • a plug device 5 is attached to the outside of the high-voltage electrode 4, which creates an electrical connection to a resistance device 6.
  • the resistance device 6 contains a pressure plate 7 at its upper end in FIG. 1 and a further pressure plate 8 at its lower end in FIG. 1. Between the pressure plates 7 and 8 there are several round metal disks 9, between each of which one. Mass resistance element 10 is housed.
  • the resistance device 6 is held together by three clamping bolts 11 made of insulating material, which are guided through through holes 12, 13 and 14 of the metal disks 9, which are each offset by 120 ° (cf. also FIGS. 2 and 3).
  • each of the clamping bolts 11 is guided in through holes 15 in one pressure plate 7 and held by pins 16 which are guided through transverse bores 17.
  • the clamping bolts 11 are each provided with a threaded bushing 18 (see FIG. 3).
  • the threaded bushings 18 can be glued to the clamping bolts.
  • a nut 20 is screwed onto the threaded bushings 18 and, as a result, a clamping force is exerted on the pressure plates 7 and 8 and thus also on the metal disks 9 and the mass resistance elements. This creates a resistance device 6 with a relatively high mechanical strength.
  • the other pressure plate 8 has a recess 21 which is cylindrical and widened funnel-shaped towards the high-voltage electrode 4. This simplifies the insertion of the plug device 5 into the recess 21 when the inductive voltage converter is being installed.
  • the one pressure plate 7 is provided with a threaded pin 22 which is received by a threaded bore 23 of a high-voltage supply line 24.
  • the threaded pin 22 thus provides a secure mechanical and galvanic connection of the resistance device 6 to the high-voltage supply line 24.
  • the high-voltage supply line 24 in turn is embedded in an insulator 25, which is held on an end plate 28 by means of a pressure ring 26 with a sealing ring 27 interposed therebetween.
  • This end plate 28 is screwed to a flange 30 of the boiler 1 with the interposition of a further sealing ring 29.
  • each individual metal disk 9 has an indentation 31 and 32 on its different sides. These press-in are offset by 120 ° on the metal disc 9 and are each designed such that they are each once concave and convex when viewed from one side. Diametrically opposite the press-in 31 and 32 there are two further press-in 33 and 34, which serve to accommodate cylindrical spacing elements, not shown, made of insulating material. These spacer elements are designed in accordance with the height of the mass resistance elements in their length and ensure that when the resistance device 6 is compressed, the individual metal disks 9 lie parallel to one another and do not tilt.
  • the individual metal disks 9 are each stacked on top of one another such that successive metal disks are cyclically offset in the lateral direction in such a way that a helical arrangement of the mass resistance elements 10 is formed.
  • a concave pressing in of a disk is opposed to a convex pressing in of the next following disk, as a result of which the individual phase resistance elements are held securely.
  • a mechanically very stable resistance device with a comparatively low overall height is achieved.
  • an inductive voltage converter is created which maintains its mechanical structure even in the event of large currents threatening in the event of abnormal operating conditions, this property being achieved without any lasting structural changes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Regulation Of General Use Transformers (AREA)
  • Surgical Instruments (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Breakers (AREA)
  • Transformers For Measuring Instruments (AREA)
EP81730049A 1980-05-30 1981-05-14 Transformateur de tension inductif entièrement isolé pour un appareillage de commutation à haute tension à enveloppe métallique Expired EP0041917B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81730049T ATE12437T1 (de) 1980-05-30 1981-05-14 Induktiver spannungswandler fuer eine vollisolierte, metallgekapselte hochspannungsschaltanlage.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19808014832U DE8014832U1 (de) 1980-05-30 1980-05-30 Induktiver spannungswandler fuer eine vollisolierte, metallgekapselte hochspannungsschaltanlage
DE8014832U 1980-05-30

Publications (4)

Publication Number Publication Date
EP0041917A2 true EP0041917A2 (fr) 1981-12-16
EP0041917A3 EP0041917A3 (en) 1982-01-20
EP0041917B1 EP0041917B1 (fr) 1985-03-27
EP0041917B2 EP0041917B2 (fr) 1988-11-09

Family

ID=6715974

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81730049A Expired EP0041917B2 (fr) 1980-05-30 1981-05-14 Transformateur de tension inductif entièrement isolé pour un appareillage de commutation à haute tension à enveloppe métallique

Country Status (4)

Country Link
EP (1) EP0041917B2 (fr)
AT (1) ATE12437T1 (fr)
DE (1) DE8014832U1 (fr)
ZA (1) ZA813613B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104361985A (zh) * 2014-10-31 2015-02-18 平高集团有限公司 一种电压互感器及其引线结构
CN112802657A (zh) * 2021-01-11 2021-05-14 刘树伟 一种山地环境用变压器组装式支撑组件

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4338537A1 (de) * 1993-11-11 1995-05-18 Sachsenwerk Ag Induktiver elektrischer Wandler für Mittelspannung
CN119517582B (zh) * 2025-01-16 2025-04-01 河南澳美电气有限公司 一种自检型电子式电压互感器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT131016B (de) * 1930-07-04 1932-12-27 Siemens Ag Anordnung zum Messen hoher Spannungen, insbesondere in Röntgenanlagen.
DE626600C (de) * 1933-03-04 1936-02-28 Guenther Kujath Dipl Ing Messeinrichtung fuer hohe Spannungen
GB1204446A (en) * 1968-03-29 1970-09-09 Muirhead Ltd Formerly Known As Improvements relating to electrical components

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104361985A (zh) * 2014-10-31 2015-02-18 平高集团有限公司 一种电压互感器及其引线结构
CN104361985B (zh) * 2014-10-31 2017-07-28 平高集团有限公司 一种电压互感器及其引线结构
CN112802657A (zh) * 2021-01-11 2021-05-14 刘树伟 一种山地环境用变压器组装式支撑组件

Also Published As

Publication number Publication date
EP0041917B2 (fr) 1988-11-09
EP0041917A3 (en) 1982-01-20
EP0041917B1 (fr) 1985-03-27
ZA813613B (en) 1982-06-30
ATE12437T1 (de) 1985-04-15
DE8014832U1 (de) 1980-08-28

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