EP3761332B8 - An on-load tap changer including an insulation barrier - Google Patents

An on-load tap changer including an insulation barrier Download PDF

Info

Publication number: EP3761332B8
Authority: EP; European Patent Office
Prior art keywords: tap changer; load tap; insulation barrier; changer including; barrier
Prior art date: 2019-07-01
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.): Active

Application number

EP19183661.8A

Other languages

German (de)

French (fr)

Other versions

EP3761332A1 (en

EP3761332B1 (en

Inventor

Harald Hedsten

Jean Louis Gérard Mathae

Per Krainer

Magnus SVANBERG

Anders C. Johansson

Kevin Ketabi

Kristoffer Olofqvist

Daniel FORSMAN

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.)

Hitachi Energy Ltd

Original Assignee

Hitachi Energy Ltd

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.)

2019-07-01

Filing date

2019-07-01

Publication date

2023-12-06

2019-07-01 Application filed by Hitachi Energy Ltd filed Critical Hitachi Energy Ltd

2019-07-01 Priority to EP19183661.8A priority Critical patent/EP3761332B8/en

2020-06-26 Priority to PCT/EP2020/068016 priority patent/WO2021001275A1/en

2020-06-26 Priority to KR1020217042829A priority patent/KR102705593B1/en

2020-06-26 Priority to CN202080047572.9A priority patent/CN114041198B/en

2021-01-06 Publication of EP3761332A1 publication Critical patent/EP3761332A1/en

2023-11-01 Publication of EP3761332B1 publication Critical patent/EP3761332B1/en

2023-12-06 Application granted granted Critical

2023-12-06 Publication of EP3761332B8 publication Critical patent/EP3761332B8/en

Status Active legal-status Critical Current

2039-07-01 Anticipated expiration legal-status Critical

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
- H01H9/0044—Casings; Mountings; Disposition in transformer housing
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/022—Encapsulation
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
- 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
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
- H01H33/56—Gas reservoirs
- H01H33/565—Gas-tight sealings for moving parts penetrating into the reservoir
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Housings And Mounting Of Transformers (AREA)

EP19183661.8A 2019-07-01 2019-07-01 An on-load tap changer including an insulation barrier Active EP3761332B8 (en)

Priority Applications (4)

Application Number	Priority Date	Filing Date	Title
EP19183661.8A EP3761332B8 (en)	2019-07-01	2019-07-01	An on-load tap changer including an insulation barrier
PCT/EP2020/068016 WO2021001275A1 (en)	2019-07-01	2020-06-26	An on-load tap changer including an insulation barrier
KR1020217042829A KR102705593B1 (en)	2019-07-01	2020-06-26	On-load tap changer with insulating barrier
CN202080047572.9A CN114041198B (en)	2019-07-01	2020-06-26	On-load tap changer comprising an insulating shield

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP19183661.8A EP3761332B8 (en)	2019-07-01	2019-07-01	An on-load tap changer including an insulation barrier

Publications (3)

Publication Number	Publication Date
EP3761332A1 EP3761332A1 (en)	2021-01-06
EP3761332B1 EP3761332B1 (en)	2023-11-01
EP3761332B8 true EP3761332B8 (en)	2023-12-06

Family

ID=67137848

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19183661.8A Active EP3761332B8 (en)	2019-07-01	2019-07-01	An on-load tap changer including an insulation barrier

Country Status (4)

Country	Link
EP (1)	EP3761332B8 (en)
KR (1)	KR102705593B1 (en)
CN (1)	CN114041198B (en)
WO (1)	WO2021001275A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP4310875A1 (en) *	2022-07-22	2024-01-24	Hitachi Energy Ltd	A tap changer arrangement and a transformer arrangement comprising the tap changer arrangement

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AT341624B (en) *	1975-09-29	1978-02-27	Elin Union Ag	SEALING ARRANGEMENT FOR A CYLINDRICAL OLD VESSEL OF A LOAD CHANGEOVER FOR TAP SWITCHES
AT409563B (en) *	1999-02-24	2002-09-25	Reinhausen Maschf Scheubeck	ARRANGEMENT FOR SEALING A CYLINDRIC OIL VESSEL OF A SWITCH
SE529799C2 (en) *	2005-12-09	2007-11-27	Abb Research Ltd	Device for transmitting rotational motion
US8319590B2 (en) *	2011-03-21	2012-11-27	Philippe Magnier Llc	Device for explosion prevention of an on load tap changer including a rupture element
DE102011119318B4 (en) *	2011-11-23	2014-11-27	Maschinenfabrik Reinhausen Gmbh	Step switch with vacuum interrupters
DE102012104379A1 (en) *	2012-05-22	2013-11-28	Maschinenfabrik Reinhausen Gmbh	Power storage for an on-load tap-changer
EP2682973B1 (en) *	2012-07-02	2017-04-05	ABB Schweiz AG	Circuit-breaker pole part with a heat transfer shield
DE102013100263A1 (en) *	2013-01-11	2014-07-31	Maschinenfabrik Reinhausen Gmbh	On-load tap-changer with a connection to the oil volume of a transformer
DE102016104499B3 (en) *	2016-03-11	2017-04-27	Maschinenfabrik Reinhausen Gmbh	Selector for an on-load tap-changer and on-load tap-changer with diverter switch and selector

2019
- 2019-07-01 EP EP19183661.8A patent/EP3761332B8/en active Active
2020
- 2020-06-26 WO PCT/EP2020/068016 patent/WO2021001275A1/en active Application Filing
- 2020-06-26 CN CN202080047572.9A patent/CN114041198B/en active Active
- 2020-06-26 KR KR1020217042829A patent/KR102705593B1/en active IP Right Grant

Also Published As

Publication number	Publication date
EP3761332A1 (en)	2021-01-06
EP3761332B1 (en)	2023-11-01
CN114041198A (en)	2022-02-11
CN114041198B (en)	2024-03-08
KR20220008355A (en)	2022-01-20
WO2021001275A1 (en)	2021-01-07
KR102705593B1 (en)	2024-09-10

Publication	Publication Date	Title
EP3970173A4 (en)	2023-07-19	Intelligent circuit breakers
PL3286774T3 (en)	2020-06-15	On-load tap changer, a method of operating an on-load tap changer and electric system with an on-load tap changer
EP3780059A4 (en)	2021-10-06	Circuit breaker
EP3740959A4 (en)	2021-10-27	Circuit breaker lockout device
EP3905297A4 (en)	2022-08-24	Compact circuit breaker
EP3825027A4 (en)	2021-09-08	Tool changer
EP3563398A4 (en)	2020-07-15	On-load tap changer and manufacturing method thereof
EP3761332B8 (en)	2023-12-06	An on-load tap changer including an insulation barrier
EP3807678A4 (en)	2022-03-16	Reduced size fault interrupter
EP3819923A4 (en)	2022-04-06	Current transformer
EP3813086A4 (en)	2022-02-09	Electric operator for tap changer and tap changing method
ZA202003369B (en)	2021-09-29	On-load tap changer and local network transformer having an on-load tap changer
EP4067078A4 (en)	2024-01-03	Barrier laminate
EP4083128A4 (en)	2024-01-17	Insulating resin
EP4016579A4 (en)	2023-08-23	Electric switching apparatus
EP4060712A4 (en)	2023-03-15	Circuit breaker
EP4068316A4 (en)	2023-08-09	On-load tap changer
EP3921256A4 (en)	2022-03-30	Mechanically locking diverter
EP3889987A4 (en)	2022-08-24	Circuit breaker
EP3920203A4 (en)	2022-01-26	Vacuum-circuit breaker
EP4081693A4 (en)	2023-07-19	Enclosure for electrical installations
EP4050629A4 (en)	2022-12-28	Electrical storage facility
EP4079995A4 (en)	2024-01-24	Flood-resistant facility equipped with flood-resistant barrier
EP3979443A4 (en)	2023-06-21	Profile for electrical cabinet
EP3829011A4 (en)	2021-08-25	Gas insulation switchgear

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