EP1933347A1 - Isolateur à haute tension avec un raccord de collage - Google Patents

Isolateur à haute tension avec un raccord de collage Download PDF

Info

Publication number: EP1933347A1
Authority: EP; European Patent Office
Prior art keywords: insulating body; insulating; voltage insulator; adhesive layer; insulator according
Prior art date: 2006-12-11
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

EP06405512A

Other languages

German (de)

English (en)

Other versions

EP1933347B1 (fr

Inventor

Markus Vestner

Kurt Kammerl

Martin Zuercher

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.)

ABB Technology AG

Original Assignee

ABB Technology 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.)

2006-12-11

Filing date

2006-12-11

Publication date

2008-06-18

2006-12-11 Application filed by ABB Technology AG filed Critical ABB Technology AG

2006-12-11 Priority to EP20060405512 priority Critical patent/EP1933347B1/fr

2007-12-11 Priority to CN2007101609549A priority patent/CN101221840B/zh

2008-06-18 Publication of EP1933347A1 publication Critical patent/EP1933347A1/fr

2013-08-28 Application granted granted Critical

2013-08-28 Publication of EP1933347B1 publication Critical patent/EP1933347B1/fr

Status Active legal-status Critical Current

2026-12-11 Anticipated expiration legal-status Critical

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Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/42—Driving mechanisms
- 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
- H01B17/56—Insulating bodies
- H01B17/60—Composite insulating bodies
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/42—Driving mechanisms
- H01H2033/426—Details concerning the connection of the isolating driving rod to a metallic part
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/24—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring

Definitions

the present invention relates to a high-voltage insulator according to the preamble of claim 1.
Such an insulator has an axially symmetrical insulating body and two brackets, which are attached to form an electrical insulating section on the insulating body.
One of the two holders is fixed with an adhesive layer on the insulating body.
This adhesive layer is disposed between a portion of an outer surface of the insulating body and a portion of an inner surface of a connecting sleeve of the holder or between a portion of an inner surface of the insulating body and a portion of an outer surface of a connecting bolt of the holder.
Such an insulator is typically used in high-voltage engineering in apparatus engineering as a switching rod, post insulator or quenching chamber insulator.
a high voltage insulator of the type mentioned is described in CH 633651 A5 ,
This designed as a hollow profile component insulator consists of a mechanically supporting, glass fiber reinforced plastic pipe, both ends of which carry conical metal fasteners.
the outer or inner surface of one end of the plastic tube is in each case as inner ( Fig.1 ) or as outer cone ( Fig.2 ) educated.
On the inner or outer cone of the plastic tube is an outer or inner cone of the fastener.
An adhesive layer applied to the co-operating conical surfaces and / or an incision cut into this surface conical thread sets the associated fastener to the plastic tube.
the plastic pipe has a small wall thickness, then it can be glued to the side facing away from the fastening element with a support ring.
the conical adhesive and / or screw connection on the one hand achieves a good introduction of force into the plastic pipe and, with simultaneous coating of the pipe with polymer-impregnated polyester fibers, ensures protection of the glass fibers from fission products of SF 6 gas which is produced when the high-voltage insulator is used in a gas-insulated apparatus occur.
EP 899764 A2 shows a designed as an insulating tie rod high-voltage insulator with an insulating tube and two metal brackets, which are respectively disposed at one end of the insulating tube.
the brackets each contain an outer sleeve and an inserted into the pipe end inner fitting.
the holder is fixed by spreading, by press fit or by gluing on the insulating tube.
the object is to provide a high-voltage insulator of the type mentioned, which can be exposed over a long period of high mechanical and thermal stress.
the high-voltage insulator according to the invention is therefore characterized by good long-term behavior even under high mechanical and thermal loads.
An in Fig.1 illustrated high-voltage insulator has an axially symmetrical, hollow insulator 1, which is evidently designed as a tube, but may optionally also be a hollow cylinder or a ring.
the insulating body 1 is generally made of a fiber-reinforced polymer, such as a glass and / or plastic-reinforced epoxy. Spaced apart along the symmetry axis 2, two holders 3 and 4 made of metal, in particular aluminum or steel, are fastened to the insulating body 1. The insulating body 1 in this case ensures a defined insulation distance A between the two brackets 3 and 4 safe.
the holder 3 may be at ground potential and may then be electrically connected to a drive or with a metal housing, whereas the holder 4 are at high voltage potential and may then be connected to a contact arrangement of a high voltage switch.
the high-voltage insulator can transmit in the formation of the insulating body 1 as a pipe or optionally as a rod driving force for actuating the contact assembly, and can absorb in the formation of the insulating body 1 as a hollow cylinder or as a ring support forces for supporting a contact assembly receiving quenching chamber of the high voltage switch in a insulating gas filled Housing needed. If the insulating body 1 is formed as a tube or as a ring, the high-voltage insulator can also form the housing of the quenching chamber.
the lower 3 of the two brackets 3, 4 is glued to the insulating body 1 temperature resistant, wherein as an adhesive generally a two-component adhesive based on epoxy is used.
this holder contains a connection sleeve 10, which is connected via an adhesive layer 11 with the insulating body 1.
the adhesive layer 11 is arranged between a portion of the outer surface of the insulating body 1 and a portion of the inner surface of the connecting sleeve 10.
a guided into the interior of the insulating body 1 connecting pin 20 is fixed with an adhesive layer 21 on the insulating body 1.
the adhesive layer 21 is between a Section of the outer surface of the connecting pin 20 and a portion of the inner surface of the insulating body 1 is arranged.
an elastically deformable annular body 12 is arranged, which is connected via an insulating section A facing end portion 111 of the adhesive layer 11 with the insulating body 1.
an elastically deformable annular body 22 is arranged, which is connected via one of the insulating section A facing end portion 211 of the adhesive layer 21 with the insulating body 1.
the elastic deformability of the annular body 12 and 22 is set by selecting the wall thickness of the predominantly hollow cylindrical ring body so that in a transverse contraction of the insulating body 1, the end portions 111 and 211 of the adhesive layers 11 and 21 are loaded with forces significantly compared to a rigid bracket are reduced.
Such forces are mainly tensile and compressive forces and peeling and splitting forces acting perpendicular to the adhesive layers 11 and 21.
the transverse contraction can occur under heavy mechanical stresses of the high voltage insulator due to axially induced tensile or compressive forces or due to bending forces, but is primarily caused by temperature changes occurring during operation of a high voltage switch or other high voltage insulator containing the high voltage insulator. Since the coefficient of thermal expansion of the insulating body 1 is generally considerably greater than that of the connecting sleeve 10, respectively. of the connecting bolt 20, is pressed together with a temperature increase of the insulating body in a rigidly formed by a connecting sleeve 10 and a rigidly formed connecting pin 20 annular space of the holder, whereas the insulating outside the annulus, ie in the region of the insulating stretch, can expand unhindered. This resulting stresses in the insulating act in the adhesive layers primarily as a radially directed compressive force in the end portions of the adhesive layers but also as a predominantly radially directed tensile force, which generates peeling and splitting forces.
the insulating body 1 can expand at the temperature increase in the region of the end portions 111 and 211, without being inadmissible high voltages occur. Therefore, in the end portions 111 and 211, high local shear and tensile forces and thus peeling or splitting of the adhesive layers 11 and 21 in the end portions are avoided.
the ring body 12 has a section formed in the manner of a hollow cylinder 121.
a field control element designed in the manner of a torus 122 with a width exceeding the wall thickness of the hollow cylinder is arranged in the radial direction.
the inner surface of the hollow cylinder 121 is connected to the end portion 111 of the adhesive layer 11.
the wall thickness of the hollow cylinder 121 is chosen so that the elastic deformability of the annular body 11 is ensured in the region of the end portion 111.
the width of the torus 122 is chosen so that the torus homogenized during operation of the high voltage insulator electric field in the Isolierumble so that electrical flashovers are avoided.
the torus 122 has a small distance from the insulating body 1, so that the transverse contraction of the insulating body 1 can be compensated by this distance.
axially and radially aligned slots 123 can be provided in the torus 122, which reduce the mechanically effective wall thickness of the torus 122 and thus facilitate its elastic deformation.
the annular body 22 can be produced in a simple manner by an annular pin 23 arranged in the connecting bolt 20, which limits the annular body inwards.
the connecting sleeve 10 or the connecting bolt 20 and the insulating body 1 may be additionally connected by a thread.
bolt 20 and body 1 is characterized by a reference numeral 24 thread Fig.1 seen.
the high voltage insulator after Fig.2 has the annular groove 23 in manufacturing technology advantageous form in contrast to the embodiment Fig.1 only a small depth up.
the annular body 22 is then extended in the axial direction only over a small distance, but this small embedding is sufficient to reduce in the critical end portion 211 of the adhesive layer 21, the effect of the transverse contraction of the insulating body 1 on the holder 3 by elastic deformation of the annular body 22 and so to reduce the effect of undesirable peeling and splitting forces.
the hollow cylinder 121 extends to an end remote from the insulating section A end of the connecting sleeve 10 and connected to this end via the adhesive layer 11 with the insulating body 1.
force is introduced only via the connecting sleeve 10 and the adhesive layer 11 in the insulating body 1 or taken over the adhesive layer 11 of the sleeve 10 in the holder 3 of the connecting bolt 20.
an insulating body 1 can be used in this embodiment of the invention, which is designed as a solid cylinder. This manufacturing advantageous embodiment is to be used especially if the shear forces occurring in the power transmission, parallel to the single adhesive layer 11 acting shear forces are relatively small.

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Insulators (AREA)

EP20060405512 2006-12-11 2006-12-11 Isolateur à haute tension avec un raccord de collage Active EP1933347B1 (fr)

Priority Applications (2)

Application Number	Priority Date	Filing Date	Title
EP20060405512 EP1933347B1 (fr)	2006-12-11	2006-12-11	Isolateur à haute tension avec un raccord de collage
CN2007101609549A CN101221840B (zh)	2006-12-11	2007-12-11	带有粘合剂连接的高压绝缘器

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP20060405512 EP1933347B1 (fr)	2006-12-11	2006-12-11	Isolateur à haute tension avec un raccord de collage

Publications (2)

Publication Number	Publication Date
EP1933347A1 true EP1933347A1 (fr)	2008-06-18
EP1933347B1 EP1933347B1 (fr)	2013-08-28

Family

ID=37944379

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP20060405512 Active EP1933347B1 (fr)	2006-12-11	2006-12-11	Isolateur à haute tension avec un raccord de collage

Country Status (2)

Country	Link
EP (1)	EP1933347B1 (fr)
CN (1)	CN101221840B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2154700A1 (fr)	2008-08-14	2010-02-17	ABB Technology AG	Isolant haute tension doté d'un élément de commande de champ
DE102019205855A1 (de) *	2019-04-24	2020-10-29	Siemens Aktiengesellschaft	Schaltstange eines Antriebs eines elektrischen Schalters

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0899764A2 (fr) *	1997-08-30	1999-03-03	Micafil Ag	Structure isolante

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB720894A (en) *	1952-05-02	1954-12-29	C O Q Nv	Improvements in and relating to electrical insulating assemblies for leading a rod-shaped conductor carrying high voltage into a casing
CN2456298Y (zh) *	2000-10-13	2001-10-24	张春江	具有复合绝缘灭弧室的高压真空接触器
CN2715323Y (zh) *	2004-05-10	2005-08-03	王国建	真空灭弧室密封套
CN2842697Y (zh) *	2005-10-08	2006-11-29	郑玮	高压大电流真空断路器固封相柱

2006
- 2006-12-11 EP EP20060405512 patent/EP1933347B1/fr active Active
2007
- 2007-12-11 CN CN2007101609549A patent/CN101221840B/zh active Active

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0899764A2 (fr) *	1997-08-30	1999-03-03	Micafil Ag	Structure isolante

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2154700A1 (fr)	2008-08-14	2010-02-17	ABB Technology AG	Isolant haute tension doté d'un élément de commande de champ
WO2010018035A1 (fr) *	2008-08-14	2010-02-18	Abb Technology Ag	Isolateur à haute tension avec élément de commande du champ
CN102124533A (zh) *	2008-08-14	2011-07-13	Abb技术有限公司	带有场控制元件的高压绝缘装置
US8426730B2 (en)	2008-08-14	2013-04-23	Abb Technology Ag	High-voltage isolator with field control element
DE102019205855A1 (de) *	2019-04-24	2020-10-29	Siemens Aktiengesellschaft	Schaltstange eines Antriebs eines elektrischen Schalters

Also Published As

Publication number	Publication date
EP1933347B1 (fr)	2013-08-28
CN101221840A (zh)	2008-07-16
CN101221840B (zh)	2011-09-14

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