EP3424059A2 - Transformateur équipé d'un module de refroidissement fixé par crochet - Google Patents

Transformateur équipé d'un module de refroidissement fixé par crochet

Info

Publication number
EP3424059A2
EP3424059A2 EP17720443.5A EP17720443A EP3424059A2 EP 3424059 A2 EP3424059 A2 EP 3424059A2 EP 17720443 A EP17720443 A EP 17720443A EP 3424059 A2 EP3424059 A2 EP 3424059A2
Authority
EP
European Patent Office
Prior art keywords
housing
electrical device
cooling module
cooling
wall
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.)
Granted
Application number
EP17720443.5A
Other languages
German (de)
English (en)
Other versions
EP3424059B8 (fr
EP3424059B1 (fr
Inventor
Christian ETTL
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.)
Siemens Energy Austria GmbH
Original Assignee
Siemens 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.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP3424059A2 publication Critical patent/EP3424059A2/fr
Application granted granted Critical
Publication of EP3424059B1 publication Critical patent/EP3424059B1/fr
Publication of EP3424059B8 publication Critical patent/EP3424059B8/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01F27/02—Casings
    • H01F27/025—Constructional details relating to cooling
    • 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
    • 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
    • H01F27/085—Cooling by ambient air
    • 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

Definitions

  • the invention relates to an electrical device for connection to a high-voltage network with a housing filled with insulating liquid, in which a core is arranged with at least one winding, and a connected via connecting lines with the housing cooling module for cooling the insulating liquid.
  • transformers have a housing in which a core is arranged with a yoke and a plurality of legs, wherein at least one leg is enclosed by a Wick ⁇ ment.
  • the structure of core and windings is often referred to by the expert as an active part.
  • the housing of the transformers ⁇ tors is filled with an insulating liquid which is to allow addition to the electrical insulation and cooling of the active part.
  • the iso ⁇ lier wavekeit heated by the active part is guided over a cooling module, which is connected to the housing Ge ⁇ .
  • cooling modules are generally room-filling and have a high dead weight. They are also preferably firmly fixed to the housing.
  • the object of the invention is therefore to provide an electrical device of the type mentioned, which is inexpensive, can be transported quickly and quickly put into operation on site.
  • the invention solves this problem in that the cooling module is attached to the housing by means of a hook connection.
  • the cooling module is hooked to the commissioning of a transformer or a throttle as an electrical device to the housing.
  • This allows the cooling module with ei ⁇ nem crane lift attached to the casing.
  • no glands are necessary.
  • the inventive electrical equipment complies with the mechanical ⁇ specific requirements during operation stand.
  • a convenient connection such as a pipe connection, provided in the context of the invention.
  • the hook connection to a fixedly connected to the cooling module hook portion and a fixedly arranged on the housing counterpart, wherein the hook part and the Ge ⁇ gene fragment are designed such that an engagement of the hook is partly made possible with the counterpart.
  • the hook member engages behind, for example, with a hook-shaped end the counterpart, wherein the weight of the cooling module pushes the hook-shaped end piece ⁇ against the counterpart.
  • the housing has a cover, where ⁇ is arranged at the counterpart on the lid. According to the ⁇ ser advantageous development is further simplified hook of a crane in connection with the invention, the process of inhalation, since the counterpart of which is arranged off against the housing cover, is easily accessible. The commissioning of the electrical device is thus further accelerated.
  • the hook member has a extending in a longitudinal direction ⁇ carrier with a C-shaped free end, wherein the counterpart is designed as a retaining bolt which extends parallel to a wall of the housing and at a distance therefrom.
  • the retaining pin is on the installation of two fixedly connected to the housing leg firmly to the Ge ⁇ housing, for example on the housing cover, for example by welding, so that a ge upside ⁇ notified U-shaped counterpart is provided, into which the C-shaped bent end of the hook part can be easily and reliably hooked.
  • both the housing and the cooling module each have at least one cooling ⁇ liquid inlet and at least onedestattkeitsaus ⁇ gear, which are connected to each other for the exchange of insulating liquid, each cooling liquid outlet and each coolant inlet is equipped with a fluid-tight closing valve.
  • this advantageous devel ⁇ winding the modules of the electrical device that the housing and the cooling module can be independent of one another, filled with Iso ⁇ lier gallkeit and transported. Subsequently, the connection of the two modules via appropriately designed connections, such as Rohrver ⁇ compounds with Winkelkompensatoren, so that insulating liquid can pass from the housing into the cooling module and vice versa.
  • the closing valves make it possible to close the housing or the cooling module in a fluid-tight manner. After the Verbin ⁇ dung is produced between the cooling module and the housing, the closing valves are opened. Under fluid-tight Sch Strukturventi ⁇ len is to be understood that the closing valves for both air as well as impermeable to liquids and thus a contamination of the insulating liquid, such as a mineral insulating oil, with moisture or air verhin ⁇ countries.
  • Cooling fluid inlet provided an intermediate piece, wherein the intermediate piece delimits a communication channel opened on both sides and has a vent opening for venting the connection channel.
  • the intermediate piece can be vented, for example by applying a vacuum to the ventilation opening. Subsequently, the closing valves of the respectiveméflüs- stechniksausgangs and the respective cooling liquid inlet, which are interconnected via said intermediate piece, are opened.
  • a suitable gas such as nitrogen ⁇ example, sulfur hexafluoride or the like, so that there will be no pressure differences.
  • Other processing of the connection channel is possible within the scope of the invention.
  • cooling module has a holding frame, which is equipped with the hook part.
  • Holding frame and cooling module can thus be individually Herge ⁇ presents and connected to each other after their preparation and testing.
  • the cooling module has a Hal ⁇ frame, which is equipped with a lifting engagement for lifting the support frame.
  • the lifting engagement is for example ⁇ an annularly closed lifting eye, which has an inner ⁇ diameter, the hooking a conventional crane hook and thus a simple lifting of the holding frame and so with the entire cooling module allows. Notwithstanding this, the lifting engagement is also hook-shaped.
  • an expansion vessel is attached to the holding frame, which is connected via a connecting line to the interior of the housing. Also, the expansion vessel can then be transported separately from the housing as a component.
  • the expansion tank has, according to a further development of the invention, a housing connection for receiving or delivering insulating liquid, which is equipped with a fluid-tight closing valve ⁇ .
  • a housing connection for receiving or delivering insulating liquid which is equipped with a fluid-tight closing valve ⁇ .
  • the Ver ⁇ connection of the modules can be done again via an intermediate piece, which defines an open ended connecting channel, which is equipped with a vent and / or a discharge opening. About the discharge opening can be drained from the intermediate piece before demonta ⁇ ge insulating liquid.
  • the design of the cooling module is basically arbitrary. Advantages, however, it comes with when the cooling module is an active cooling module and has a fan.
  • the blower increases the cooling capacity of the active cooling module compared to a passive cooling module, which is dimensioned accordingly.
  • an outer wall of the electrical Ge ⁇ device is at least partially executed bullet resistant.
  • the electrical device When the electrical device is used in a power supply network, it is usually a potential target for destructive external attacks. Such an attack is, for example, the firing of handguns or rifles and the use of explosive devices with grenade or bomb fragments Entourage.
  • the bullet-resistant outer wall which is made of a bullet-resistant material or material, for example.
  • the outer wall forms ⁇ example, the outer boundary of a component of the electrical device.
  • the outer wall forms, for example, the housing or the boiler of the electrical device, which is filled with insulating liquid. This applies accordingly to the feedthroughs, the expansion tank, the cooling unit or other components of the electrical appliance. Deviating from this, the outer wall is arranged at a distance from the housing of the elec ⁇ cal device and designed as a reinforcing fence.
  • the outer wall consists of a
  • bullet resistant material with a tensile strength of over 1000 MPa comes, for example, Armored steel into consideration.
  • the outer wall comprises an outer wall and an inner wall, between which a damping means is arranged.
  • the ball penetrates the outer wall of the outer wall, where ⁇ is then absorbed and degraded in the energy of the ball of the Dämpfungsmit ⁇ tel.
  • the damping agent is a liquid or a dry foam.
  • FIG. 1 shows an embodiment of the electrical device according to the invention in a perspective view
  • FIG. 2 shows a cooling module of the electrical device according to FIG. 1 in a front view
  • FIG. 3 shows the cooling module according to FIG. 2 without connecting tube and partially transparent
  • FIG. 5 shows the attached to the housing cooling module from above
  • Figure 6 show an embodiment of an intermediate piece.
  • the transformer 1 shows a perspective view of a single-phase transformer 1 as an embodiment of an electrical device OF INVENTION ⁇ to the invention.
  • the transformer 1 shown there has a housing 2, which is equipped with a cooling module 3, an expansion vessel 4, an auxiliary power module 5 and high ⁇ voltage bushings 6, 7, 8.
  • the said components or modules are detachably connected to each other, thus can be easily assembled, disassembled and transported independently of ⁇ each other.
  • the high-voltage feedthroughs 6, 7 and 8 are each designed as plug-in high-voltage feedthroughs and can be inserted with their insertion end into suitable bushings. jacks 10 are introduced.
  • the feedthrough sockets 10 are designed to be rotationally symmetrical and define a cavity which is open towards the housing cover but closed on one side and which is complementary in shape to the insertion of the respective high-voltage leadthrough 6, 7, 8.
  • the feedthrough sockets 10 are also fluid-tightly connected to the housing 2, so that the inner or oil chamber of the single-phase transformer 1 hermetically sealed or fluid-tight, so air and liquid-tight from the summarizeat- atmosphere is completed.
  • High voltage conductor is.
  • Said line bolt extends into the interior of the housing 2, ie into its oil space, where it is in contact with a winding connection line, which thus electrically connects the feedthrough socket to the respective upper or lower voltage winding of the transformer 1.
  • a klad For mounting and fixing the high-voltage feedthrough 6, 7 or 8, these each have a mounting connection 11.
  • a klad extends ⁇ lenabites 12 to a high voltage terminal 13, which is an open-air connection in the embodiment shown.
  • the distance between the fastening connection 11 and the high-voltage connection 13 in the embodiment shown is more than 3 meters and in particular 4 meters.
  • FIG. 2 shows the cooling module 3 from the front. It can be seen that the cooling module 3 is equipped with blowers 14 which, depending on the required cooling power, can be accelerated, slowed down or completely stopped by a control 15 in their number of revolutions.
  • the cooling module 3 further has two cooling branches 16 and 17, each with its own connection pipe 18 and 19, respectively are equipped. In this case, the connecting pipes branch off 18 and 19 from an upper manifold 20, wherein they are brought together in a lower manifold 21 again.
  • the lower manifold 21 forms a coolant outlet 22, which is connected to a coolant inlet of the housing 2.
  • ade york ⁇ keitseingang 23 is provided for the cooling module 3 in the upper region, via which the entering into the cooling module 3 Iso ⁇ lier gallkeit enters the upper manifold 20 and can get from there into the cooling branches 16 or 17.
  • the upper manifold 20 also has two more not visible in Figure 2 line branches, which have a heat exchanger ⁇ exchanger. Insulating fluid, which enters these lines of conduction, is routed via the respective heat exchanger. Each heat exchanger is in heat-conducting contact with the airflow generated by the fans 14. The guided via the connecting lines 18 and 19 Isolierflüs ⁇ stechnik, however, is not cooled by the blowers 14. The breakdown of the insulating liquid to the various Strö ⁇ mung paths of the cooling module 3, 15 men ⁇ taken over by the controller.
  • FIG 3 shows the cooling module 3 also being JE but disassembled from the front, the connection lines and the fan are illustrated transparent and heat exchanger 14, so that a Hal ⁇ tegestell 23 is recognizable.
  • the holding frame 23 is made
  • FIG 4 shows the cooling module 3 according to Figure 2 or 3 in a side view, in particular, the holding frame 23 is ver ⁇ interpreting light.
  • the holding frame 23 has on each side so ⁇ probably front and rear each have a longitudinal member 24.
  • the two side members 24 are arranged parallel to one another and connected to one another via an upper cross member 26 and a lower cross member 26.
  • a stiffening element 27 which extends obliquely from the lower cross member 26 to the upper cross member 26 can be seen, which is connected to the rear side member 24 via reinforcing ribs 28.
  • the reinforcing ribs 28 increase the mechanical strength of the holding post 23 and also form a climbing aid.
  • the step-out aid 28 simplistic ⁇ fanned a user on the transformer 1, for example for maintenance purposes ascend.
  • the front side member 24 is equipped with a hook part 30 having a longitudinally extending beam 29 whose free end is C-shaped.
  • the hook part 30 can be brought into engagement with a counterpart arranged on the housing 2, so that the entire cooling module 3 can be fastened to the housing 2 in a simple manner during mounting.
  • a Ab sensiblele ⁇ ment 31 can be seen, which is fixed to the front side member 24 and extends parallel to the carrier 29 of the hook portion 30.
  • the support member 31 After hooking the C-shaped free end of the hook portion 30 to the attached to the housing 2 counterpart, the support member 31 is located with its free end against the outer wall ⁇ of the housing 2 and holds the cooling module 3 in a position in which the front The longitudinal member 24 extends substantially parallel to the side wall of the housing 2.
  • FIG. 5 shows the housing 2 with the suspended cooling module 3 in a plan view with the connection lines 18 and 18 mounted 19.
  • the coolant inlet 23 of the upper manifold 20 is connected via a connecting line 32 to an inlet port 33 of the housing 2.
  • the connecting line 32 is fluid-tight, so air and liquid-tight, connected to the input ⁇ stub 33 and has a closing valve 34 in its front region.
  • the cooling liquid inlet 23 of the cooling module 3 with a closing valve 34 refinedrüs ⁇ tet.
  • the connecting line 32 is connected via an intermediate piece 35 with the cooling liquid inlet 23 of the cooling module 3.
  • the coolant outlet of the housing 2 is connected to the coolant inlet 23 via the intermediate piece 35.
  • Figure 6 shows the mentioned intermediate piece 35 in a magnification ⁇ ßerten representation.
  • the intermediate part 35 defines an arcuate connecting channel, which is open on both sides and a flange 36 in fluid-tight connection ⁇ with a cooling fluid inlet or coolant outlet is connectable.
  • a bleed screw is pre ⁇ see.
  • the connec ⁇ duct of the intermediate piece 35 can be vented. This is done, for example, by applying a vacuum. Subsequently ⁇ AZd the connecting channel can be filled with a gas or the closing valves 34 of the inputs or from ⁇ be opened carefully transitions.
  • the intermediate piece 35 further has a drain screw 38, with the disassembly insulating liquid can be discharged from the Ver ⁇ binding channel specifically. After draining the insulating liquid, each intermediate piece 35 can demonstrate and then the cooling unit 3 are separated from the housing 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformer Cooling (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

L'invention concerne un appareil électrique (1) destiné à être raccordé à un réseau à haute tension, comprenant un boîtier (2) pouvant être rempli d'un isolant liquide et renfermant un noyau pourvu d'au moins un enroulement, et comportant en outre un module de refroidissement (3) destiné à refroidir l'isolant liquide qui est relié audit boîtier (2) par l'intermédiaire de lignes de raccordement (32, 35). L'objectif de cette invention est de concevoir cet appareil électrique de manière qu'il soit avantageux et transportable rapidement et qu'il puisse être mis en service rapidement sur place. A cet effet, le module de refroidissement (3) est fixé au boîtier (2) au moyen d'un système de liaison par crochet (25).
EP17720443.5A 2016-04-29 2017-04-26 Transformateur équipé d'un module de refroidissement fixé par crochet Active EP3424059B8 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016207390.7A DE102016207390A1 (de) 2016-04-29 2016-04-29 Transformator mit eingehängtem Kühlmodul
PCT/EP2017/059844 WO2017186750A2 (fr) 2016-04-29 2017-04-26 Transformateur équipé d'un module de refroidissement fixé par crochet

Publications (3)

Publication Number Publication Date
EP3424059A2 true EP3424059A2 (fr) 2019-01-09
EP3424059B1 EP3424059B1 (fr) 2021-03-10
EP3424059B8 EP3424059B8 (fr) 2021-04-21

Family

ID=58645052

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17720443.5A Active EP3424059B8 (fr) 2016-04-29 2017-04-26 Transformateur équipé d'un module de refroidissement fixé par crochet

Country Status (6)

Country Link
US (1) US10707006B2 (fr)
EP (1) EP3424059B8 (fr)
CN (1) CN109074940B (fr)
CA (1) CA3022193C (fr)
DE (1) DE102016207390A1 (fr)
WO (1) WO2017186750A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200343033A1 (en) 2018-01-15 2020-10-29 Siemens Aktiengesellschaft Transportable power transformer unit
CN109449787B (zh) * 2018-11-26 2020-07-14 河北机电职业技术学院 一种自感应除尘的电气自动化配电箱

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1119840A (en) * 1914-12-08 Frank Kuhn Electrical fluid-heater.
US1860511A (en) * 1924-11-19 1932-05-31 Allis Chalmers Mfg Co Transformer or the like
DE1119840B (de) * 1957-08-30 1961-12-21 Unilever Nv Verfahren zur Herstellung von ª‰-Diketonen
US3137829A (en) * 1959-11-12 1964-06-16 Gen Electric Electrical apparatus
US3235823A (en) 1961-04-03 1966-02-15 Mc Graw Edison Co High voltage three phase transformer
DE1247475B (de) 1966-05-13 1967-08-17 Licentia Gmbh Befestigungsvorrichtung fuer eine Kuehlanlage an einem Transformatorkessel
CN2090036U (zh) * 1990-12-22 1991-12-04 张兴波 立柱双板四通散热器
US6188567B1 (en) * 1999-05-28 2001-02-13 3Com Corporation Power distribution apparatus and method
DE102005060635A1 (de) * 2005-12-13 2007-06-14 Siemens Ag Steuerungsverfahren zur Kühlung einer technischen Anlage
US20110273255A1 (en) * 2010-05-10 2011-11-10 Robert Samuel Thompson Endoskeletal transformer tank
CN201829302U (zh) * 2010-10-22 2011-05-11 江苏上能变压器有限公司 一种节能型变压器冷却系统
GB2490478B (en) * 2011-04-20 2014-04-23 Siemens Plc Superconducting magnets with thermal radiation shields
BR112014030107B8 (pt) * 2012-06-05 2023-04-25 Siemens Ag Tanque para um transformador ou indutor refrigerado por líquido
JP6200637B2 (ja) * 2012-08-28 2017-09-20 株式会社日立産機システム 油入変圧器
EP2767989B1 (fr) * 2013-02-14 2016-02-10 Axel Bruns Dispositif de prélèvement d'hélium liquide à partir d'un tomographe à résonance magnétique
ITVI20130201A1 (it) 2013-07-31 2015-02-01 Convett S R L Radiatore in alluminio a tubi ellittici alettati.
ES2549969T3 (es) 2013-08-12 2015-11-03 Abb Technology Ag Panel de intercambio de calor portátil para tanque de transformador corrugado
US9815594B2 (en) * 2014-10-15 2017-11-14 Abb Schweiz Ag Tank for electrical equipment

Also Published As

Publication number Publication date
US20170316861A1 (en) 2017-11-02
US10707006B2 (en) 2020-07-07
EP3424059B8 (fr) 2021-04-21
CN109074940B (zh) 2022-06-03
EP3424059B1 (fr) 2021-03-10
CA3022193C (fr) 2021-12-14
WO2017186750A3 (fr) 2017-12-21
WO2017186750A2 (fr) 2017-11-02
DE102016207390A1 (de) 2017-11-02
CN109074940A (zh) 2018-12-21
BR112018071969A2 (pt) 2019-02-12
CA3022193A1 (fr) 2017-11-02

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