EP2289081B1 - Transformateur de puissance avec commutateur à gradins - Google Patents

Transformateur de puissance avec commutateur à gradins Download PDF

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Publication number
EP2289081B1
EP2289081B1 EP09757146.7A EP09757146A EP2289081B1 EP 2289081 B1 EP2289081 B1 EP 2289081B1 EP 09757146 A EP09757146 A EP 09757146A EP 2289081 B1 EP2289081 B1 EP 2289081B1
Authority
EP
European Patent Office
Prior art keywords
tap changer
transformer
oil
load tap
power transformer
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.)
Active
Application number
EP09757146.7A
Other languages
German (de)
English (en)
Other versions
EP2289081A1 (fr
Inventor
Wolfgang Albrecht
Dieter Dohnal
Rainer Frotscher
Klaus Schlepp
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.)
Maschinenfabrik Reinhausen GmbH
Scheubeck GmbH and Co
Original Assignee
Maschinenfabrik Reinhausen GmbH
Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG
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 Maschinenfabrik Reinhausen GmbH, Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG filed Critical Maschinenfabrik Reinhausen GmbH
Priority to PL09757146T priority Critical patent/PL2289081T3/pl
Publication of EP2289081A1 publication Critical patent/EP2289081A1/fr
Application granted granted Critical
Publication of EP2289081B1 publication Critical patent/EP2289081B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H01F27/12—Oil cooling
    • H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
    • 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
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • H01F2027/404—Protective devices specially adapted for fluid filled transformers

Definitions

  • the invention relates to an oil-filled power transformer with a likewise oil-filled tap changer.
  • NL90244C discloses a power transformer, wherein an expansion vessel is connected via a pipe to the interior of the transformer tank. Inside, both the tap changer and the transformer are arranged.
  • strain radiators are known, which are attached to the outer sides of the transformer and which are used at the same time for cooling and recording the thermal expansion of the oil. This eliminates the usually existing, often expansive expansion vessel, which is usually mounted above the transformer cover.
  • strain radiators allow the construction of a closed system in which the transformer oil has no direct contact with the outside air and therefore can not oxidize (-> oil aging, sludge formation).
  • Such hermetically sealed systems also allow the use of flame retardant, renewable raw materials, biodegradable ester oils that must be protected against oxidation.
  • strain radiators have a uniform size, which results as the optimum of cooling surface and variable volume.
  • variable volume poses great challenges to the durability of the material used.
  • the in-transformer tap changer is connected via a pipe with its own Dehnradiator, which serves alone to accommodate the volume expansion of tap changer oil. Due to the very small change in volume of the tap-changer oil in comparison with the transformer oil, the stretching radiator provided for the tap changer is several times oversized.
  • the gas space is filled with nitrogen.
  • About pipes are the Gas chambers directly in connection with nitrogen-filled expansion tanks, the volume of which is dimensioned so that the pressure conditions, which adjust due to the volume expansion of the oil over the entire operating temperature range in a predetermined allowable range remain (eg between 0 bar and 0.5 50 kPa (bar) overpressure).
  • the large nitrogen containers which increase the outside dimensions of the transformer by approx. 20%.
  • the nitrogen pad is located directly under the transformer or step switch cover, so that can be dispensed with any expansion vessels.
  • solutions with separate expansion tanks for transformer and tap changer are known in which there is a rubber bag or a rubber membrane in the interior of the expansion vessel, with which an air discharge of the oil is achieved.
  • the interior of the rubber bag or the surface of the rubber membrane facing away from the oil is in communication with the ambient air via a drying template.
  • the disadvantage here is the limited life of the rubber bag or the rubber membrane, since by aging the rubber after 10-15 years is porous and thus permeable to oxygen.
  • the object of the invention is to provide a simple solution, with a low structural complexity, a compensation of the thermal expansion of both the oil in the transformer tank and the separate tap changer oil is possible.
  • the existing at the tap changer head flange which is provided according to the prior art for connection to a separate expansion vessel only for the tap changer, is now connected by means of a pipe to the oil tank of the transformer.
  • the flange on the transformer to connect an expansion vessel - and only this - is actually connected to the single expansion vessel via another pipeline.
  • the only expansion vessel now cascades both the oil volume changes of the tap changer oil tank and the transformer oil tank.
  • both flanges of both the tap changer and the transformer are connected to each other via a pipe, and this pipe is connected via another pipe connection in turn with the single expansion tank in connection.
  • An oil flow relay is located in the pipe joint leading away from the tap changer flange, which triggers the circuit breaker of the transformer when a certain oil flow limit is exceeded. In this way, oil flows above a tap changer-specific limit value, which characterize a possible malfunction of the tap changer, can be reliably detected.
  • the tap changer 2 has a selector 2.1 arranged at the bottom, which is connected via electrical connecting lines to the winding taps of the power transformer 1, as well as a diverter switch 2.2 arranged above it with its own oil-filled diverter switch vessel.
  • the entire assembly is located in an oil-filled transformer tank 3.
  • the tap changer 2 has an upper flange 4, the transformer tank 3 quite analogous to an upper flange 5.
  • the two flanges 4, 5 are known in the art with separate ⁇ lausdehnungsgefä call, Dehnradiatoren or other means connected to the volume compensation.
  • the flange 4 of the tap changer is provided with a pipe 6, which opens into the oil-filled transformer tank 3.
  • an oil flow relay 7 is inserted.
  • Only the flange 5 of the transformer tank 3 leads via a further pipeline to a single oil expansion vessel 8.
  • the hermetic seal of the oil by means of a rubber bag 11, the interior of which is in communication with the ambient air.
  • Figure lb shows a modified embodiment. Identical components are provided with the same reference numerals; on a repeated explanation of the overall structure can therefore be omitted.
  • the flange 4 of the tap changer 2 and the flange 5 of the transformer tank 3 are connected by means of a common pipe 9.
  • an oil flow relay 7 is connected.
  • This common, both flanges 4, 5 connecting, pipe 9 in turn is in turn with the single oil conservator 8 in connection.
  • a pressure relief valve 10 as available for example under the trade name MPreC® provide. Its mode of action has already been explained above.

Landscapes

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

Claims (2)

  1. Transformateur de puissance comprenant un commutateur à gradins dans lequel
    le transformateur de puissance ainsi que le commutateur à gradins sont remplis d'huile,
    le commutateur à gradins est monté dans la cuve du transformateur,
    le transformateur ainsi que le commutateur à gradins comportent respectivement sur leur face supérieure, une bride de connexion pour permettre de les relier à un réservoir d'expansion d'huile, et
    la bride de connexion du commutateur à gradins conduit par une conduite tubulaire à la partie interne de la cuve du transformateur de puissance,
    caractérisé en ce que
    l'extrémité de la conduite tubulaire (6) conduisant à la partie interne de la cuve du transformateur (3) est ouverte de sorte que les volumes d'huile du commutateur à gradins (2) et du transformateur de puissance (1) soient reliés,
    un relais d'écoulement d'huile (7) est monté dans la conduite tubulaire (6), et
    seule la bride de connexion (5) de la cuve du transformateur (3) conduit à un seul réservoir d'expansion d'huile (8).
  2. Transformateur de puissance comprenant un commutateur à gradins conforme à la revendication 1,
    caractérisé en ce qu'
    au dessus de la tête du commutateur à gradins (2) est montée une soupape de décharge de pression (10) qui est reliée au volume d'huile du commutateur à gradins (2).
EP09757146.7A 2008-06-06 2009-04-07 Transformateur de puissance avec commutateur à gradins Active EP2289081B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09757146T PL2289081T3 (pl) 2008-06-06 2009-04-07 Transformator mocy z przełącznikiem zaczepów

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008027274A DE102008027274B3 (de) 2008-06-06 2008-06-06 Leistungstransformator mit Stufenschalter
PCT/EP2009/002542 WO2009146762A1 (fr) 2008-06-06 2009-04-07 Transformateur de puissance avec commutateur à gradins

Publications (2)

Publication Number Publication Date
EP2289081A1 EP2289081A1 (fr) 2011-03-02
EP2289081B1 true EP2289081B1 (fr) 2015-08-05

Family

ID=40896977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09757146.7A Active EP2289081B1 (fr) 2008-06-06 2009-04-07 Transformateur de puissance avec commutateur à gradins

Country Status (12)

Country Link
US (1) US20110063064A1 (fr)
EP (1) EP2289081B1 (fr)
JP (1) JP2011522428A (fr)
KR (1) KR20110015470A (fr)
CN (1) CN102057453A (fr)
CA (1) CA2726873C (fr)
DE (1) DE102008027274B3 (fr)
ES (1) ES2551321T3 (fr)
PL (1) PL2289081T3 (fr)
RU (1) RU2505875C2 (fr)
UA (1) UA100156C2 (fr)
WO (1) WO2009146762A1 (fr)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009035699A1 (de) * 2009-07-30 2011-02-10 Maschinenfabrik Reinhausen Gmbh Anordnung eines Stufenschalters an einem Regeltransformator
KR20130137590A (ko) 2010-08-18 2013-12-17 마쉬넨파브릭 레인하우센 게엠베하 탭 절환기
DE202010011521U1 (de) * 2010-08-18 2011-11-23 Maschinenfabrik Reinhausen Gmbh Laststufenschalter
DE202010011524U1 (de) 2010-08-18 2011-11-23 Maschinenfabrik Reinhausen Gmbh Stufenschalter
DE202010012811U1 (de) 2010-09-18 2011-12-19 Maschinenfabrik Reinhausen Gmbh Stufenschalter
DE102011008689B3 (de) 2011-01-15 2012-03-08 Maschinenfabrik Reinhausen Gmbh Stufenschalter
JP2013058527A (ja) * 2011-09-07 2013-03-28 Meiden T&D Co Ltd 変圧器
JP2013131511A (ja) * 2011-12-20 2013-07-04 Aichi Electric Co Ltd 変圧器
CN102664090B (zh) * 2012-04-26 2014-10-22 衡阳市南方互感器有限公司 可视互感器雾状滴注真空注油装置
JP2013247173A (ja) * 2012-05-24 2013-12-09 Toshiba Corp 負荷時タップ切換装置および変圧器
DE102013100264A1 (de) 2013-01-11 2014-07-17 Maschinenfabrik Reinhausen Gmbh Laststufenschalter mit einer Verbindung zum Ölvolumen eines Transformators
DE102013100263A1 (de) * 2013-01-11 2014-07-31 Maschinenfabrik Reinhausen Gmbh Laststufenschalter mit einer Verbindung zum Ölvolumen eines Transformators
DE102013100266A1 (de) 2013-01-11 2014-07-17 Maschinenfabrik Reinhausen Gmbh Laststufenschalter
DE102013107547B4 (de) * 2013-07-16 2017-01-19 Maschinenfabrik Reinhausen Gmbh Laststufenschalter, Verfahren zur Montage eines Lastumschaltereinsatzes im Laststufenschalter und Kerosinablassschraube
DE102014102262A1 (de) * 2014-02-21 2015-08-27 Maschinenfabrik Reinhausen Gmbh Schalteinrichtung
CN103985530A (zh) * 2014-05-09 2014-08-13 昆山达功电子有限公司 调压变压器
CN104124039B (zh) * 2014-06-23 2016-04-13 湖北网安科技有限公司 一种油浸式高过载电力变压器
KR101464579B1 (ko) * 2014-08-07 2014-11-24 조원전설(주) 96t 계전기 동작 시험용 다이얼 텐션 게이지
CN104465028B (zh) * 2014-11-28 2017-02-22 江苏亘德科技有限公司 一种便于拆装的用于支撑变压器储油柜的支撑结构
CN105822859A (zh) * 2016-04-22 2016-08-03 国家电网公司 变压器通用注油法兰装置
DE102016110221A1 (de) 2016-06-02 2017-12-07 Maschinenfabrik Reinhausen Gmbh Laststufenschalterkopf sowie Laststufenschalter mit Laststufenschalterkopf
CN109637859B (zh) * 2018-12-14 2024-05-03 广东电网有限责任公司 一种用于取油样的变压器分接开关工具
RU192342U1 (ru) * 2019-01-15 2019-09-13 Общество с ограниченной ответственностью "НПО "ИнтелТехПром" (ООО "НПО "ИТП") Трансформатор для электродегидратора
CN111029115A (zh) * 2019-11-07 2020-04-17 国网山东省电力公司菏泽供电公司 一种变压器油位油温监测报警仪
DE102020122444A1 (de) 2020-08-27 2022-03-03 Maschinenfabrik Reinhausen Gmbh Laststufenschalter und Stufentransformator mit Laststufenschalter
EP4002409A1 (fr) * 2020-11-13 2022-05-25 Hitachi Energy Switzerland AG Commutateur à prise de réglage
DE102023108700A1 (de) * 2023-04-05 2024-10-10 Maschinenfabrik Reinhausen Gmbh Laststufenschalterdeckel und Laststufenschaltervorrichtung

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NL90244C (fr) * 1900-01-01
DE669306C (de) * 1931-11-21 1938-12-21 Siemens Schuckertwerke Akt Ges OEltransformator mit angebautem, in OEl angeordnetem Stufenschalter
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AT208968B (de) * 1958-05-21 1960-05-10 Elin Union Ag Entlüftungseinrichtung für die beim Stufenschalten unter Last entstehenden Schaltgase
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JPS61141110A (ja) * 1984-12-14 1986-06-28 Toshiba Corp 負荷時タツプ切換器
FR2739486B1 (fr) * 1995-09-28 1997-11-14 Magnier Philippe Procede et dispositif de protection contre l'explosion et l'incendie des transformateurs electriques
FR2791463B1 (fr) * 1999-03-22 2001-06-29 Philippe Magnier Dispositif de prevention contre l'explosion des transformateurs electriques
JP2001284146A (ja) * 2000-03-29 2001-10-12 Toshiba Corp 負荷時タップ切換器付き変圧器
US7145760B2 (en) * 2000-12-15 2006-12-05 Abb Technology Ltd. Tap changer monitoring
JP4280040B2 (ja) * 2002-08-22 2009-06-17 株式会社ダイヘン 負荷時タップ切換変圧器
FR2888034B1 (fr) * 2005-06-29 2010-10-08 Philippe Magnier Dispositif de prevention contre l'explosion d'un transformateur electrique
US7847189B2 (en) * 2005-07-01 2010-12-07 Siemens Aktiengesellschaft Electrical Component
AU2006314089B2 (en) * 2005-11-16 2009-07-16 Ctr Manufacturing Industries Limited Method and device for prevention and protection of electrical transformer against explosion and fire

Also Published As

Publication number Publication date
EP2289081A1 (fr) 2011-03-02
WO2009146762A1 (fr) 2009-12-10
RU2010153989A (ru) 2012-07-20
RU2505875C2 (ru) 2014-01-27
KR20110015470A (ko) 2011-02-15
UA100156C2 (ru) 2012-11-26
CA2726873C (fr) 2016-09-06
PL2289081T3 (pl) 2015-12-31
DE102008027274B3 (de) 2009-08-27
US20110063064A1 (en) 2011-03-17
JP2011522428A (ja) 2011-07-28
CA2726873A1 (fr) 2009-12-10
ES2551321T3 (es) 2015-11-18
CN102057453A (zh) 2011-05-11

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