EP0964409B1 - Durchführungsisolator für Hoch- und Mittelspannungsstation - Google Patents

Durchführungsisolator für Hoch- und Mittelspannungsstation Download PDF

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Publication number
EP0964409B1
EP0964409B1 EP99401249A EP99401249A EP0964409B1 EP 0964409 B1 EP0964409 B1 EP 0964409B1 EP 99401249 A EP99401249 A EP 99401249A EP 99401249 A EP99401249 A EP 99401249A EP 0964409 B1 EP0964409 B1 EP 0964409B1
Authority
EP
European Patent Office
Prior art keywords
bar
divider
voltage
boss
voltage divider
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
EP99401249A
Other languages
English (en)
French (fr)
Other versions
EP0964409A1 (de
Inventor
Olivier Rouilhac
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.)
Alstom Holdings SA
Original Assignee
Alstom France SA
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 Alstom France SA filed Critical Alstom France SA
Publication of EP0964409A1 publication Critical patent/EP0964409A1/de
Application granted granted Critical
Publication of EP0964409B1 publication Critical patent/EP0964409B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/26—Lead-in insulators; Lead-through insulators

Definitions

  • the invention relates to a crossing for a post at high or medium voltage, including a divider tension, a metal bar extending along a longitudinal direction above the voltage divider, and a metal frame to mechanically couple and electrically one end of the bar to the divider of voltage.
  • Such a crossing is in particular erected on the ground under a high or medium voltage line to capture the current passing through the line and return it after division, to protective or measuring equipment.
  • the divider of tension consists of two cylindrical glass blocks separated by a metal electrode and the bar is erected on top of the divider resting on it.
  • the both mechanical and electrical connection between the bar and the voltage divider must be produced by a reinforcement metallic and the object of the invention is to provide a solution for the realization of such a frame which puts in works few parts and whose assembly is simple and reliable.
  • Figure 1 shows very schematically in section axial a crossing according to the invention.
  • Figure 2 shows in more detail in axial section the metal frame between the bar and the divider voltage.
  • Figure 3 shows in more detail in axial section the fixing the bar to the upper part of the crossing.
  • the crossing is presented as a support arranged on the ground and which extends in a direction longitudinal and axial vertical D. It includes a bar metallic 1 electrically conductive, for example aluminum, which extends vertically inside a 2 tubular insulating jacket.
  • the envelope can for example be porcelain.
  • the envelope rests on an enclosure metallic 3 placed on the ground.
  • the ends of the envelope are fitted with fittings 4 and 5, fitting 5 being used to anchoring the envelope to the enclosure.
  • the fitting 4 is used to the anchoring of a power line (not shown) on the above the crossing.
  • the bar 1 is electrically connected to the fitting 4 and to a voltage divider 6 placed in the enclosure 3 on a metal support 7 grounded.
  • the voltage divider 6 consists of two cylindrical glass blocks stacked one on top of the other and separated by an electrode not represented.
  • Bar 1 enters inside enclosure 3 and rests by its lower end on the top of the divider tension 6.
  • a metal frame 8 ensures the coupling electrical and mechanical bar and divider voltage.
  • the metal frame 8 comprises a flange metal 9 which is fixed on the upper face of the divider Of voltage.
  • the flange has a central boss 10 in which is formed a substantially frustoconical bore 11 extending in the longitudinal direction and leaving a substantially cylindrical central lug 12 extending axially in direction D.
  • Tapered bore 11 forms a sort of annular groove whose bottom is more tightened as the opening, this groove therefore surrounding the lug central 12 which projects from the side of the bar following the direction D.
  • the frame also comprises a part which is substantially frustoconical 13 which constitutes the end of the bar 1 in contact with the voltage divider.
  • This piece 13 is split in direction D and is intended to be inserted in bore 11 of the flange. It has a bore substantially cylindrical central 14 which extends axially following direction D and in which comes to engage lug 12.
  • the part 13 and the flange 9 are designed to be inserted each other with some resistance to insertion so as to ensure good electrical contact and also mechanical resistance without play perpendicular to the direction D.
  • care must be taken to ensure that branches 15 of the frusto-conical part support so elastic on the wall of the bore 11 when the part 13 is engaged in boss 10 and there is contact electric between the lug 12 and the wall of the bore 14.
  • Exhibit 13 and bar 1 form a single piece of foundry or other like the flange 9 with its boss 10.
  • the lower end of the bar 1 is set compression in direction D against the divider of tension through, for example, a set of spring washers 16 (or a spiral spring) mounted around a central lug 17 arranged at the end upper of bar 1 to engage in a bore cylindrical 18 of the fitting 4.
  • a set of spring washers 16 or a spiral spring mounted around a central lug 17 arranged at the end upper of bar 1 to engage in a bore cylindrical 18 of the fitting 4.
  • the arrangement of the frame according to the invention does not therefore does not require the use of an insulating support for hold the bar 1 inside the envelope 2, hold bar 1 mechanics being provided on the one hand by the frame 8 and on the other hand by the lug 17.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulators (AREA)
  • Insulating Bodies (AREA)
  • Transformers For Measuring Instruments (AREA)

Claims (1)

  1. Durchführungsisolator für eine Hoch- oder Mittelspannungsstation, welcher einen Spannungsteiler (6), eine Metallstange (1), die sich in Längsrichtung (D) über dem Spannungsteiler erstreckt, und eine Metallarmierung (8) zum mechanischen und elektrischen Zusammenfügen eines Endes der Stange mit dem Spannungsteiler aufweist, dadurch gekennzeichnet, dass die Armierung aufweist:
    ein Lagerschild (9) mit einem Höcker (10), befestigt auf dem Oberteil des Spannungsteilers, wobei der Höcker eine im wesentlichen kegelstumpfartige, sich in Längsrichtung erstreckende Ausbohrung (11) aufweist, in deren Inneren ein im wesentlichen zylindrischer Vorsprung (12) mittig hervorsteht,
    ein im wesentlichen kegelstumpfartiges Werkstück (13), welches ein Ende der Stange bildet, wobei dieses in Längsrichtung geschlitzt ist und eine mittige zylindrische Ausbohrung (14) aufweist, wobei das Werkstück und der Höcker so ausgebildet sind, dass sie sich ineinander einsetzen lassen.
EP99401249A 1998-06-08 1999-05-25 Durchführungsisolator für Hoch- und Mittelspannungsstation Expired - Lifetime EP0964409B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9807178 1998-06-08
FR9807178A FR2779564B1 (fr) 1998-06-08 1998-06-08 Traversee pour poste a haute et a moyenne tension

Publications (2)

Publication Number Publication Date
EP0964409A1 EP0964409A1 (de) 1999-12-15
EP0964409B1 true EP0964409B1 (de) 2003-12-03

Family

ID=9527131

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99401249A Expired - Lifetime EP0964409B1 (de) 1998-06-08 1999-05-25 Durchführungsisolator für Hoch- und Mittelspannungsstation

Country Status (7)

Country Link
US (1) US6215684B1 (de)
EP (1) EP0964409B1 (de)
JP (1) JP2002518821A (de)
CA (1) CA2300282A1 (de)
DE (1) DE69913249T2 (de)
FR (1) FR2779564B1 (de)
WO (1) WO1999065040A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2757705A1 (de) 2013-01-22 2014-07-23 ABB Technology AG Mediumspannungs-Stromleitungs-Kommunikationskoppler

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002975A (en) * 1976-02-26 1977-01-11 The United States Of America As Represented By The Secretary Of The Interior Electro-optic measurement of voltage on high-voltage power lines
DE3048285A1 (de) * 1980-12-20 1982-07-29 Friedrich Dr.-Ing. e.h. 8600 Bamberg Raupach Giessharzisolierter messwandler, insbesondere strom- und spannungswandler
CH669062A5 (de) * 1986-03-24 1989-02-15 Pfiffner & Co Ag Emil Messwandler fuer hochspannung.
FR2683939B1 (fr) * 1991-11-20 1993-12-31 Gec Alsthom Sa Disjoncteur auto-sectionneur a moyenne tension et application a une cellule et a un poste a moyenne tension.

Also Published As

Publication number Publication date
DE69913249D1 (de) 2004-01-15
EP0964409A1 (de) 1999-12-15
DE69913249T2 (de) 2004-09-09
US6215684B1 (en) 2001-04-10
JP2002518821A (ja) 2002-06-25
FR2779564B1 (fr) 2000-07-07
FR2779564A1 (fr) 1999-12-10
CA2300282A1 (fr) 1999-12-16
WO1999065040A1 (fr) 1999-12-16

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