WO2017182244A1 - Assembly for the overvoltage protection of an electric system which is insulated with an insulating fluid - Google Patents
Assembly for the overvoltage protection of an electric system which is insulated with an insulating fluid Download PDFInfo
- Publication number
- WO2017182244A1 WO2017182244A1 PCT/EP2017/057393 EP2017057393W WO2017182244A1 WO 2017182244 A1 WO2017182244 A1 WO 2017182244A1 EP 2017057393 W EP2017057393 W EP 2017057393W WO 2017182244 A1 WO2017182244 A1 WO 2017182244A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- arrangement
- housing
- contact
- passage
- drive
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
-
- 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
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
- H01T4/12—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel hermetically sealed
Definitions
- the invention relates to an arrangement according to the preamble of claim 1.
- Overvoltage arresters are used to dissipate undue voltages, for example due to a lightning strike, in an overhead line to earth and thus protect other devices such as transformers.
- surge contain Metalloxidieri which are hardly electrically conductive below a bauartbe ⁇ -related threshold voltage, but above half of the threshold voltage have a good electrical Leitfä ⁇ ability.
- Such surge arresters are from the brochure "High-voltage surge arresters - Product GUI de”., Siemens AG 2012, Order No. E50001-G630-A249-X-4A00, be ⁇ known.
- Impregnated Paper The capacitor winding consists of a special paper impregnated under vacuum with epoxy resin.
- a Abieiter is flanged at the site of the transformer to the implementation, possibly using adapter rings or adapter housings.
- Abieiters is opened via a manhole to produce a elekt ⁇ driven conductive contact between the bushing and Abieiter. Subsequently, the housing of the Abieiters is filled with a protective gas such as sulfur hexafluoride.
- the invention has the object of providing an arrangement for overvoltage protection of an insulating liquid iso- Herten electrical system that is comparatively easy to put into operation and maintain.
- the invention solves this problem by an arrangement according to claim 1.
- the contact device comprises a threaded rod which is adapted to receive a rotary motion from outside the housing and to move one hand to the resistor column ver ⁇ -bound contact, the contact to a counter contact in the implementation toward or away is movable.
- a threaded rod is a simple mechanical Kon ⁇ constructive tion to translate a rotational movement into a longitudinal movement along the axis of the rod; Therefore, it has long been tried and used cost-effectively.
- the electrical system insulated with insulating liquid has a high-voltage transformer. This is advantageous because high-voltage transformers must be regularly protected against excessive overvoltages.
- the insulating liquid is an oil.
- the protective gas contains sulfur hexafluoride.
- the arrangement according to the invention comprises the implementation of a first part, which is designed such that it stood in the assembled To ⁇ projects into a housing of the electrical system and surrounded by the insulating liquid.
- the arrangement according to the invention comprises the implementation of a second part which is adapted is that in which it protrudes, the opponent ⁇ pedestal surrounding housing and in the assembled state is surrounded by the protective gas.
- a maintenance flap is provided for access to a contact region between the resistance column and the leadthrough.
- the maintenance flap is often referred to in Abieitern as a manhole, as a technician after opening the flap access to the components located inside the housing receives.
- the contact device can be driven by a drive arranged on the housing.
- Surge arrester can be achieved without opening the protection ⁇ gas-insulated housing area.
- the drive is a manual drive. This is an advantage because a manual drive, for example with a hand crank, is inexpensive and easy to manufacture.
- the drive is an electric drive.
- an electric drive with ⁇ means of an electric motor is automatic ⁇ sierbar for example by a control device on the spot or by remote control by a control center.
- Figure 1 shows an embodiment of an arrangement according to the invention.
- a erfindungsge ⁇ MAESSEN arrangement 1 for overvoltage protection of an insulated with an insulating liquid 5 electrical system 2.
- the system is a high-voltage transformer with Olisolierter housing 20 which is filled with an oil.
- a resistance column 3 with resistance elements 19 is provided, which is arranged in a housing 4 filled with an electrically insulating protective gas 6, such as, for example, sulfur hexafluoride (SF6).
- a passage 7 for the connection of the electrical installation 2 with the resistance column 3 has a first part 17 which is extends in the mounted condition in the housing 20 of the electrical installation 2, and is surrounded by the Isolierthe ⁇ ness.
- a first flange 15 connects the housing 20 and the passage 7.
- Passage 7 projects into the housing 4 surrounding the resistance column 3 and is surrounded by the protective gas 6.
- a second flange 14 connects the housing 4 and the passage 7.
- the resistance elements are metal oxide semiconductors, which are hardly electrically conductive below a design-related voltage, but are highly conductive above this voltage.
- a drive for the contact device 8,9,10,11 comes a hand ⁇ drive 12 with a hand crank used. This makes it possible to produce or disconnect an electrically conductive connection between the resistance column 3 and the bushing 7, without the inert gas being sucked off and then having to be manually closed or disconnected via a service flap 13 by a technician.
- the contact device has a threaded rod 9 which is fixedly connected to a contact 8.
- the contact 8 is formed as a bolt which is slidable in a guide 21. If the bolt 8 is inserted into a mating contact 16 on the side of the bushing 7, an electrically conductive connection is produced. When the bolt 8 completely retracted to the side of the guide 21, a separation section 22 is formed, which made possible by the shielding gas ei ⁇ ne safe separation.
- the threaded rod 9 is held in a gear 10, in which a second rod 11 is provided such that a rotational movement of the second rod 11 via the gear 10 on the threaded rod is exceeded ⁇ gene, so that the threaded rod along an axis pa ⁇ rallel is moved to the resistance column.
- the second rod 11 for this purpose a profile or a thread which is complementary to the thread of the threaded rod ⁇ .
- the illustrated closed state could be a corresponding rotational movement of the second Rod, which is driven by the drive 12, screw back the threaded rod and the bolt 8 in the direction of the drive and thus produce the separation distance 22.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Gas-Insulated Switchgears (AREA)
- Thermistors And Varistors (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17716480.3A EP3417467B1 (en) | 2016-04-19 | 2017-03-29 | Arrangement for the surge protection of an electrical device isolated with a dielectric fluid |
KR1020187033265A KR102102301B1 (en) | 2016-04-19 | 2017-03-29 | Assembly for overvoltage protection of electrical systems insulated with insulating fluid |
CN201780024127.9A CN109313995B (en) | 2016-04-19 | 2017-03-29 | Device for overvoltage protection of electrical installations insulated with insulating liquid |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016206580.7A DE102016206580A1 (en) | 2016-04-19 | 2016-04-19 | Arrangement for overvoltage protection of an electrical system insulated with an insulating liquid |
DE102016206580.7 | 2016-04-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017182244A1 true WO2017182244A1 (en) | 2017-10-26 |
Family
ID=58530514
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2017/057393 WO2017182244A1 (en) | 2016-04-19 | 2017-03-29 | Assembly for the overvoltage protection of an electric system which is insulated with an insulating fluid |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3417467B1 (en) |
KR (1) | KR102102301B1 (en) |
CN (1) | CN109313995B (en) |
DE (1) | DE102016206580A1 (en) |
WO (1) | WO2017182244A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0224074A2 (en) * | 1985-11-18 | 1987-06-03 | Asea Brown Boveri Inc. | Electrical distribution apparatus having draw-out surge arrester |
EP2466596A1 (en) * | 2010-12-16 | 2012-06-20 | ABB Research Ltd. | Component with excess voltage protection and method for testing same |
DE102012217310A1 (en) * | 2012-09-25 | 2014-03-27 | Siemens Aktiengesellschaft | Surge arresters |
EP2854141A1 (en) * | 2013-09-30 | 2015-04-01 | Siemens Aktiengesellschaft | Surge arrester |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1051381B (en) * | 1957-03-28 | 1959-02-26 | Westinghouse Electric Corp | Temperature display device for windings in electrical equipment |
DD122742A1 (en) * | 1975-08-22 | 1976-10-20 | ||
DE2746566C3 (en) * | 1977-10-17 | 1981-11-26 | Transformatoren Union Ag, 7000 Stuttgart | High-voltage bushing for connecting transformers filled with insulating liquid to SF ↓ 6 ↓ -insulated cables or switchgear |
JPS6237891A (en) * | 1985-08-09 | 1987-02-18 | 株式会社東芝 | Arrestor for gas insulation neutral point |
JPH05101868A (en) * | 1991-10-08 | 1993-04-23 | Fuji Electric Co Ltd | Lightning arrester for power transmission line |
JP3750279B2 (en) * | 1997-05-30 | 2006-03-01 | 株式会社日立製作所 | Tank type lightning arrester |
DE19926950A1 (en) * | 1999-06-14 | 2000-12-21 | Abb Research Ltd | Cable end fittings |
JP2002025746A (en) * | 2000-07-06 | 2002-01-25 | Giga:Kk | Surge-absorbing element and manufacturing method therefor |
DE50210082D1 (en) * | 2001-09-02 | 2007-06-14 | Phoenix Contact Gmbh & Co | SURGE PROTECTION DEVICE |
US8259430B2 (en) * | 2009-09-25 | 2012-09-04 | John Mezzalingua Associates, Inc. | Surge protection device for isolating premise devices |
DE102011077394A1 (en) * | 2011-06-10 | 2012-12-13 | Siemens Aktiengesellschaft | Surge arresters |
-
2016
- 2016-04-19 DE DE102016206580.7A patent/DE102016206580A1/en not_active Ceased
-
2017
- 2017-03-29 EP EP17716480.3A patent/EP3417467B1/en active Active
- 2017-03-29 CN CN201780024127.9A patent/CN109313995B/en active Active
- 2017-03-29 KR KR1020187033265A patent/KR102102301B1/en active IP Right Grant
- 2017-03-29 WO PCT/EP2017/057393 patent/WO2017182244A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0224074A2 (en) * | 1985-11-18 | 1987-06-03 | Asea Brown Boveri Inc. | Electrical distribution apparatus having draw-out surge arrester |
EP2466596A1 (en) * | 2010-12-16 | 2012-06-20 | ABB Research Ltd. | Component with excess voltage protection and method for testing same |
DE102012217310A1 (en) * | 2012-09-25 | 2014-03-27 | Siemens Aktiengesellschaft | Surge arresters |
EP2854141A1 (en) * | 2013-09-30 | 2015-04-01 | Siemens Aktiengesellschaft | Surge arrester |
Non-Patent Citations (2)
Title |
---|
"EKTG 72,5 - 800 kV RIP Transformator-Gas-Durchführung", 2012, HSP HOCHSPANNUNGSGERÄTE GMBH, article NR. 03/12-500 TH 102-110888 |
"High-voltage surge arresters - Product guide", 2012, article ORDER NR. E50001-G630-A249-X-4A00 |
Also Published As
Publication number | Publication date |
---|---|
EP3417467B1 (en) | 2020-09-02 |
DE102016206580A1 (en) | 2017-11-02 |
CN109313995B (en) | 2020-07-31 |
CN109313995A (en) | 2019-02-05 |
KR20180132894A (en) | 2018-12-12 |
KR102102301B1 (en) | 2020-04-21 |
EP3417467A1 (en) | 2018-12-26 |
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