EP3427275A2 - Ersatztransformator mit modularem aufbau - Google Patents
Ersatztransformator mit modularem aufbauInfo
- Publication number
- EP3427275A2 EP3427275A2 EP17720753.7A EP17720753A EP3427275A2 EP 3427275 A2 EP3427275 A2 EP 3427275A2 EP 17720753 A EP17720753 A EP 17720753A EP 3427275 A2 EP3427275 A2 EP 3427275A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- arrangement
- voltage
- transformer
- connection
- 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
Links
- 238000001816 cooling Methods 0.000 claims abstract description 69
- 238000004804 winding Methods 0.000 claims abstract description 40
- 239000007788 liquid Substances 0.000 claims description 33
- 239000002826 coolant Substances 0.000 claims description 21
- 239000004020 conductor Substances 0.000 claims description 13
- 239000000110 cooling liquid Substances 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 5
- 239000012809 cooling fluid Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000006260 foam Substances 0.000 claims description 2
- 210000004072 lung Anatomy 0.000 claims description 2
- 238000013022 venting Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract description 5
- 230000002950 deficient Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 description 8
- 230000037431 insertion Effects 0.000 description 8
- 238000013461 design Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 3
- 230000001934 delay Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
-
- 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
-
- 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
- H01F27/002—Arrangements provided on the transformer facilitating its transport
-
- 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
- H01F27/02—Casings
- H01F27/04—Leading of conductors or axles through casings, e.g. for tap-changing arrangements
-
- 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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- 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
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
- H01F30/10—Single-phase transformers
Definitions
- the invention relates to an arrangement for replacing a polyphase transformer.
- transformers are used to convert a high voltage into a low voltage or vice versa.
- large power transformers often reach the size of a multiple dwelling.
- the transformers are designed according to the respective customer requirements, so that they are usually produced as tailor-made custom-made products. In case of error, such
- the object of the invention is therefore to provide an arrangement with which faulty transformers can be quickly replaced.
- a commissioning period between 48 and 72 hours should be possible.
- the invention achieves this object by an arrangement with a plurality of single-phase transformers.
- the single-phase transformers each have a filled with an insulating liquid housing in which a core is arranged with an upper and a lower voltage winding, at least one
- Feedthrough socket which has an inside the Housing extending winding connection line is connected to the upper or lower voltage winding, at least one high-voltage feedthrough, which is inserted into the feedthrough socket, and a releasably connectable to the housing and filled with insulating cooling module for cooling the insulating liquid.
- an arrangement is provided with a multi-phase transformer can be quickly and easily replaced, and so a quick resumption of Ener ⁇ giemers is possible.
- the arrangement according to the invention can be transported quickly and mounted on site within a few days. If the arrangement of the invention in Be ⁇ shoot, the faulty multi-phase transformer can be exchanged at rest by a Neutransformator. If, after three years, for example, the faulty multiphase transformer has been replaced by a new multiphase transformer, the arrangement according to the invention can be reduced and is available for new applications.
- ⁇ speaks the number of single-phase transformers, the number of phases of the faulty transformer.
- ⁇ speaks the number of phases of the faulty transformer.
- a three-phase transformer is replaced by three single-phase transformers.
- the single-phase transformers themselves are also modular.
- the first module filled with insulating housing is provided in which the core is arranged with upper and lower voltage winding as an active part.
- the structure of the core and the upper or lower voltage cover is fundamentally arbitrary in the context of the invention.
- the housing is also equipped with feed-through sockets, facing at their insulating the liquid Side are connected to a winding connection line.
- the winding connection line is in turn connected to one of the windings. For example, if the feedthrough bushing is on the high voltage side, the winding connection line is connected to the high voltage winding.
- the high voltage feedthrough comprises a longitudinally extending insulator, through which in turn a high voltage conductor extends.
- the high-voltage feedthrough has a fastening connection, from which a plug-in section, which is complementary in shape to the feed-through socket, extends to its free transformer end.
- the insertion section is inserted into the feed-through socket.
- the high ⁇ voltage bushing is fixed by means of fastening connection to the housing.
- the high voltage conductor of the bushing is in the inserted position on a line bolt, which is kept isolated at the closed end of the bushing.
- the cable pin contacts the
- Bushings have sealing means and thus seal the interior of the housing fluid-tight.
- the column section extends senk ⁇ right or right angles to a horizontal housing cover of the housing, so that the weight of Hochschreibs sacrifice ⁇ tion directly from above, ie perpendicular, is introduced into the bushing socket.
- the weight of the imple ⁇ tion thus ensures a high contact pressure within the socket, so that in this way a good insulation is provided by a solid state composite.
- the high-voltage bushing is connected to the bushing by means of a convenient detachable connection, such as a screw connection.
- a cooling module which can be transported independently of the remaining components of the respective single-phase transformer is provided which can be detachably connected to the housing and is already filled or filled with insulating liquid on site prior to assembly. After connecting the cooling module with the inner or oil chamber of the housing, the insulating liquid is passed over the cooling module and cooled in the desired manner.
- both the housing and the cooling module each have at least one coolant inlet and at least one coolant outlet, which can be connected to each other for the exchange of insulating, each coolant outlet and each coolant inlet is equipped with a fluid-tight closing valve. Because both the cooling module and the housing each with a
- each cooling fluid outlet of the housing is connected to a cooling liquid inlet of the cooling module and each cooling liquid outlet of the cooling modulesverapt ⁇ Lich with an associated cooling fluid inlet of the housing.
- the cooling module can basically be configured as desired. So it may be in the cooling module, for example, a passive cooling module having cooling fins in which the Iso ⁇ lier gallkeit is circulated.
- the cooling module is in heat-conducting contact with the outside atmosphere, so that there is a heat transfer from the insulating liquid to the outside atmosphere.
- each coolant inlet is in direct contact with a coolant outlet.
- Coolant outlet and coolant inlet provided hen, wherein the intermediate piece delimits a connecting channel and has a vent opening for venting the connecting channel.
- the insulating liquid which emerges from a coolant outlet, is guided via the connecting channel of the intermediate piece to a coolant inlet.
- the intermediate piece may be designed rigid or have a flexible movable portion.
- the example tubular connecting channel extends from an inlet opening of the intermediate piece to the outlet opening. During assembly, the intermediate piece is fluid-cooled on one side with a coolant inlet and on the other side with a coolant outlet. tightly connected.
- connection ⁇ channel of the adapter can be vented. This is done via the vent opening and, for example, by applying a vacuum in the connecting channel by means of a vacuum pump. After applying the vacuum in the connecting channel, the closing ⁇ valves of the cooling liquid inlet and thedefact ⁇ keitsausgangs can be opened respectively.
- the intermediate piece has a fluid-tight sealable outlet opening, which allows the draining of insulating liquid from the connecting channel before assembly.
- each single-phase transformer of the arrangement according to the invention has a Ausdeh- expansion vessel which is connectable with the housing via a connection to the off ⁇ exchange of insulating liquid, wherein the vessel is from ⁇ strain arranged on a separate support frame.
- the expansion vessel is mechanically held by its separate holding frame.
- the expansion vessel is also connected to the housing interior or, in other words, to the oil chamber, so that insulating liquid can pass via the said connection to the expansion vessel and vice versa.
- the volume of the insulating liquid is temperature-dependent. As the temperature increases, the volume of the insulating fluid increases. Because of the constant
- Inner volume of the housing is therefore an additional volume in the form of the expansion vessel required to accommodate the resulting at higher temperatures additional volume of the insulating liquid.
- the expansion vessel may be equipped with a dehumidifier or a gas compression chamber or the like.
- the exact configuration of the expansion vessel in the invention is arbitrary. Matter ⁇ lich, however, is the separate arrangement and support on the support frame. This ensures a simple and accelerated installation.
- the holding frame for holding the expansion vessel is above set up the detachably mounted on the housing cooling module.
- the holding frame has, for example, a foundation or a ground-facing bottom surface and a derive foot-facing bottom surface and a derive foot-facing bottom surface and a derive foot-facing bottom surface and a derive foot-facing bottom surface on that di- rectly with the expansion vessel is connected. Between these two sides extend, for example, metal struts, which are so mitei ⁇ each other, that a necessary space for receiving the cooling module is provided, which is also attached to the Ge ⁇ housing or on the support frame.
- the support frame is part of the cooling module, wherein the cooling module on the support frame to the housing is prevented ⁇ ver.
- the cooling module comprises a Hal ⁇ terahmen which is equipped with a lifting engagement for lifting the support frame and a hook part for hooking into a secured to the Ge ⁇ housing counterpart.
- the Hebeein ⁇ handle is for example an annularly closed ⁇ lifting eyelet, which has an inner diameter which allows the hooking of a conventional crane hook, and thus a simple lifting of the holding frame and thus of the entire cooling module. Notwithstanding this, the lifting engagement is also hook-shaped.
- the hook part and the counterpart for example, a simple bolt, form a hook connection, which allows the mounting of the cooling module on the housing and thus a quick installation of the cooling module.
- the counterpart is in ⁇ example, a parallel to a housing wall, in ⁇ example, the lid, extending bolt. Which is held at a distance from said housing wall.
- each single-phase transformer can be connected to an auxiliary power module, in which an auxiliary transformer for generating a supply energy is arranged.
- an auxiliary power module is provided which is connected to the active part and, for example, a tertiary or compensation ⁇ winding of the respective transformer.
- the upper ⁇ voltage winding of the auxiliary transformer is energized, so that at its secondary side, the supply voltage is provided, which is required by electrical components of the single-phase transformers for their operation.
- This electrical ⁇ rule components include, for example, motors, pumps, fans, ventilation systems and the like.
- At least three bushings are provided.
- the bushings are advantageously air and liquid tightly attached to the housing. They each allow a quick plugging their associated high-voltage bushing and thus a quick installation on site.
- the feedthrough sockets are shaped complementary to the male portion of the respective high voltage feedthrough.
- the high-voltage bushing is dimensioned as a function of its operating voltage.
- each winding connection line is equipped with a current transformer.
- the mounting of current transformers during on-site assembly is avoided.
- the current transformers are permanently installed inside the housing according to this embodiment. This leads to a further shortening of the assembly time on site.
- the cooling module is expediently equipped with a fan and can be connected to the auxiliary power module.
- an active cooling module is selected which provides a higher degree of cooling than a comparably dimensioned passive cooling module.
- the cooling module is connected to the auxiliary power module, the output side provides the supply voltage for the fans and other electronic elements of theharimo ⁇ module.
- a lockable adjustment ⁇ opening is formed at least granted the access to be ⁇ arranged in the housing selection means, said selection means forms a plurality of voltage terminals, each with an associated bushing socket, a cable ⁇ output or a winding are connected, wherein two of the voltage terminals are connected via a switching unit optionally with ⁇ each other.
- the single-phase transformers can be set to specific inputs or outputs. For this purpose, a voltage connection of each selection unit is connected to a winding. The remaining voltage connections of the selection unit are each connected to an associated feedthrough socket or a cable connection. The switching unit connects a selected input or output of the single-phase transformer to one of the windings.
- the switching unit is, for example, a suitably designed switch or a cost-effective double-sided pluggable connecting conductor, which is referred to below as a setting conductor.
- a setting conductor By simply repositioning the adjusting ⁇ conductor, the respective winding is connected to another through ⁇ management socket. Inputs and outputs can be adjusted flexibly.
- the selection means is arranged in- nergur of the housing and therefore completely surrounded in operation of the order of at ⁇ insulating liquid. However, it is directly facing an insertion opening of the housing. This insertion opening is preferably located in the so-called cover of the housing.
- the insulating liquid is slightly tilllas ⁇ sen from the housing so that a user of the access is provided to the selection means via the insertion opening.
- the setting conductor can connect the corresponding voltage connections of the selection device to one another.
- an input setting opening and an output setting opening are provided, wherein the selector device facing the input setting opening is connected to at least two feedthrough sockets and the selector device facing the output setting opening is connected to a further feedthrough socket and one or each cable outlet.
- each high-voltage bushing is manufacturedrüs ⁇ tet for mounting on the housing with a fixing terminal, from which a pillar portion extends which forms ei ⁇ NEN high-voltage terminal in was ⁇ nem free end remote from the mounting terminal end, the pillar portion has a length of at least three Meters.
- pluggable feedthroughs are possible in a voltage range of over 245 kV. Plug-in feedthroughs in this voltage range are currently unknown.
- at least one cable connection is provided for the connection of a cable ladder.
- the housing has two cable connections.
- an outer wall of the arrangement according to the invention is at least partially executed bullet-resistant. If the arrangement according to the invention is used, for example, in a power supply network, this as a junction usually represents a potential target for destructive attacks from the outside. Such an attack is, for example, the firing of small arms or rifles and the use of explosive devices with grenade or bomb splinters in the wake. To protect against such attacks is the
- Bullet-resistant outer wall for example, from a bullet resistant material or material is made.
- the outer wall forms, for example, the outer boundary of a component of the arrangement.
- the Au ⁇ .wandung forms, for example, the respective housing or the kettle was the single-phase transformers, which is filled with insulating liquid. This applies accordingly to the conditions, the expansion tank, the cooling unit or other components of the single-phase transformers. Notwithstanding this, the outer wall is arranged at a distance from the housing of the single-phase transformers 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 suggests the outer wall of the outer wall, wherein the energy of the ball is then taken up by the damping means and degraded.
- the damping agent is a liquid or a dry foam.
- the invention also relates to a method for replacing a polyphase transformer.
- one of the number of phases of the polyphase transformer corresponding number of single-phase transformer housings is placed in the vicinity of the polyphase transformer, the Trans ⁇ formatorengephase connected to a cooling module and an expansion ⁇ vessel, high voltage bushings of the transformer housing mounted, the windings of einphasi ⁇ conditions Connected transformer housing together and the high-voltage guide connected at their terminals with a supply network and a load.
- the transport and assembly time is considerably shortened, so that the supply of public or private consumers are quickly resumed after a failure of a multi-phase transformer can.
- FIG. 3 schematically illustrates a faulty multiphase transformer during operation
- FIG. 4 shows the arrangement according to the invention as a replacement for the faulty multiphase transformer according to FIG. 3,
- FIG. 7 shows the housing according to FIG. 5 together with the expansion vessel arranged on a holding frame and connected to the housing
- FIG. 8 shows an embodiment of a cooling module in a front view
- Figure 9 shows the casing according to FIG 5 verbun ⁇ dene cooling module according to figure 8 in a plan view, FIG an embodiment of a light interpreting ⁇ 10 intermediate piece for connecting the cooling module ver ⁇ ,
- FIG. 11 shows the housing with attached auxiliary power module in a side view
- FIG. 12 shows the housing with inserted high-voltage feedthroughs
- Transformers of the inventive arrangement which is ertstructuret for an input voltage of 345 kV and an output voltage of 138 kV, and
- Figure 17 shows an embodiment of a single-phase
- Transformers one of the inventive ⁇ Shen arrangement with an input voltage of 330 kV and an output voltage of 115 kV represents.
- the transformer 1 shown therein includes a housing 2, which is equipped with a cooling module 3, an expansion vessel 4, an auxiliary power module 5 and the high tensioning ⁇ voltage bushings 6, 7,. 8
- the said components or modules are detachably connected to each other, so they can be easily disassembled and transported independently.
- the legs of which each windings are enclosed serve Abieiter 9, which have a nonlinear Wi ⁇ resistance within their arrester housing, which at overvoltages of a not conductive state in a conductive state and so ⁇ protects the parallel connected to him components.
- the high-voltage bushings 6, 7 and 8 are each designed as plug-in high-voltage bushings and can be inserted with their insertion in suitable feedthrough bushings 10.
- the feedthrough receptacles 10 are 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 end 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 oil chamber of the single-phase transformer 1 hermetically, that is air- and liquid-tight manner which eclip ⁇ closed from the outside atmosphere.
- FIG. 2 shows the single-phase transformer 1 according to FIG. 1 in a perspective view, in which the cooling module can be better recognized. Incidentally, the remarks made on FIG. 1 apply correspondingly here.
- FIG. 3 shows a top view of a three-phase transformer 14 which is arranged on a foundation made of concrete 15.
- the transformer 14 is connected to a high voltage power supply 16 having three phases.
- a consumer network 17 is interpreted to ⁇ .
- the power supply of the consumer network 17 through the supply network 16 can no longer be maintained. Therefore, a quick replacement of the multiphase transformer 14 is to be ensured.
- the multi-phase transformer 14 is a power transformer, the individual production usually takes several months, for example, 10-15 months. In addition there is the elaborate trans ⁇ port and finally also several weeks on site assembly.
- FIG. 4 shows the use of an arrangement 18 according to the invention for replacing the polyphase transformer 14. It can be seen that the arrangement 18 consists of a plurality of single-phase
- Transformers 1 as shown in Figures 1 and 2, consists.
- the single-phase transformers 1 are connected at their high-voltage side, that is, for example, to the open-air connection 13 of the bushing 6, in each case to the supply network 16 and at its low-voltage side via a cable connection and an open-air connection to the consumer network 17.
- the arrangement 18 according to the invention is designed to be flexible and can therefore be set up according to the respective requirements.
- the arrangement 18 according to the invention can therefore already be built before the occurrence of a fault. Due to its modular structure and the use of einpha ⁇ sigen transformers 1, the invention Anord ⁇ voltage of 18 in comparison to multi-phase transformer 14 lightweight individual components in a much shorter time transported to the respective desired site who ⁇ can.
- the assembly time is significantly reduced by the modular design, so that the inventive arrangement 18 mounted within a few days and thus the supply of the consumer network can be quickly resumed.
- a permanent replacement solution for the multiphase transformer 14 For example, a new multi-phase transformer can be designed and manufactured. The faulty polyphase transformer 14 may be removed from the foundation 15 and the new polyphase transformer placed there. At ⁇ closing the supply network 16 and the consumer network 17 is connected to the new multi-phase transformer, so that this then provides instead of the inventive arrangement 18 for the desired voltage conversion.
- the arrangement 18 according to the invention can then be dismantled and fed to new tasks.
- Figure 5 shows the housing 2 of a single-phase transformer 1 in a perspective view.
- the bushings 10 particularly well recognizable.
- a pipe 18 is shown, which serves to connect the housing 2 with the cooling module 3.
- the pipeline 18 forms an opening 19, which can be closed in a fluid-tight manner by means of a closing valve 20.
- a connecting piece 21 for connection to the expansion vessel 4 is illustrated.
- FIG. 6 shows the housing 2 according to FIG. 5 in a plan view. May be in particular in Figure 6 are adjusting holes 22, 36 shows the fluid-tightly closed by a flap ⁇ ver.
- the adjustment openings 22 and 33 each provide access to a selection device, which will be discussed in more detail later.
- Figure 6 has been dispensed with the representation of the pipe 18, so that only a connection piece 25 can be seen, in which in turn an opening 19 is formed, which is again closed by a closing valve. An unwanted escape of Insulating fluid from the housing 2 during transport is thus avoided.
- FIG. 7 shows the housing 2 according to FIGS. 5 and 6, but the expansion vessel 4 is connected via a pipeline 24 to the connecting piece 21 and thus to the oil space of the housing 2.
- the expanding insulating liquid can reach the expansion vessel 4 via a connecting piece 21 and connecting pipe 24 which has a comprehensive connection.
- the expansion vessel 4 is arranged on a sepa rat ⁇ erected frame 25th The entire Ge ⁇ weight force of the expansion vessel 4 is thus introduced into the Ge ⁇ vice 25 and not into the case. 4
- the holding rack 25 is connected to the housing 2 via a hook connection, so that unintentional lateral slipping of the holding rack 25 from the housing 2 is avoided.
- the Hakenver ⁇ connection comprises a firmly connected to the holding frame 25 hook part 26 which engages with a fixed piece on the housing 2 counter.
- the counterpart is, for example, a parallel to the housing cover extending bolt, which is connected via two side legs with the housing cover, where ⁇ in side legs and the Bolzano have the shape of an upside down "U".
- FIG. 8 shows the cooling module 3 in a front view, in which it can be seen that the cooling module 3 has fans 27 with which the cooling capacity of the cooling module 3 can be increased.
- the fan 27 generating a stream of air on the outer side, te of a not illustrated figuratively heat exchange Regis ⁇ ters of the cooling module is passed.
- 3 Within the Wär ⁇ me instrumentregisters circulating the insulating liquid, wherein there is a heat exchange between the heated insulating liquid and the passing air stream. In other words, heat from the insulating liquid goes into the
- the cooling module 3 is also held in the frame 25 ge ⁇ .
- the frame 25 forms a kenteil 26 for a hook connection with the housing 2, so that the frame 23 and thus the cooling module 3 can be easily hooked to the housing.
- the holding frame 25 also forms lifting eyelets 46.
- the cooling module 3 comprises a control unit 47, which is firmly integrated into the cooling module 3. The solid compound simplifies and speeds up the assembly of the cooling module 3 on the housing 2.
- a fitting 28 is formed in is ⁇ nem upper region, which via an intermediate piece 29 with the conduit 18 and thus with the Connecting piece 23 of the housing 2 is connected.
- the connecting piece 28 forms a coolant inlet of the cooling module 3, whereas the pipe 18 forms aisserflüssüs ⁇ syersausgang the housing 2.
- an outlet nozzle 30 can be seen which delimits a cooling liquid outlet of the cooling module 3.
- thedeflüs- stechniksausgang 30 of the cooling module 3 is connected to a figured not shown coolant inlet of the housing 2 in the lower region, so that it can come to a circulation of insulating liquid on the cooling module 3.
- the connecting piece 28, the pipe 18, the réellestut- zen 30 and the cooling liquid inlet of the housing 2, not shown, are each etcstüs ⁇ Tet with a closing valve 44, with which the respective output and input can be closed fluid-tight ver ⁇ .
- the illustrated cooling module 3 is split into two parts, for which reason the connecting piece 28 is connected to a transversely extending upper collecting line 31, which in turn is connected to two pipes 32 and 33 in FIG Connection stands, so that the cooling can be divided into two cooling strands. Beneath the fan 27, a lower collecting ⁇ line 34 can be seen in Figure 8, the two insulating combined liquid flows and the output nozzle 30 to ⁇ leads.
- FIG. 9 shows the cooling module 3 from above, wherein it is hooked firmly to the housing 2 by means of a hook connection. It is arranged in the holding frame 25.
- the intermediate piece 29 is illustrated in detail in FIG. It can be seen that the intermediate piece 29 is formed at an angle. It is hollow or tubular inside and defines a connection channel which can be vented with a vent port 34. At the vent connection 34, a hose connection can be placed at ⁇ example, which is connected to a convenient vacuum pump, so that the connecting channel of the intermediate piece 29 which extends between the closing valves of the pipe 18 and the connector 28, can be vented. After applying the Vaku ⁇ ums the closing valves can be opened, whereby contamination of the insulating liquid by air and or water inclusions is avoided.
- the intermediate piece 29 is further equipped with a drain opening 45, to lead off insulating liquid before disassembly from the connecting channel ⁇ .
- auxiliary power module 5 shows the assembly of the auxiliary power module 5 on the housing 2 by means of a mechanical connection unit 42.
- the auxiliary power module 5 is connected to a tap of a compensating or tertiary winding of the housing 2 via an electrical connection, which is not shown in the drawing, so that in this way during operation of the respective one single-phase transformer 1 a voltage at the input of the auxiliary power module 5 is applied.
- the auxiliary power module 5 has a figuratively not shown auxiliary transformer, which is connected with its high-voltage winding to the input auxiliary power module 5 and the output side provides a supply voltage, which can ⁇ for example, to drive the blower 27 of the cooling module 5 ver ⁇ applies.
- connection unit 42 is a releasable mechanical connection which makes it possible to connect the auxiliary power module 5 to the housing 2 in a simple, fast and secure manner.
- a plug, clamp, hook, flange or other connection into consideration.
- FIGS. 12 to 17 illustrate the flexibility of the arrangement 18 according to the invention and in particular show that the arrangement 18 can be used variably in different voltage levels.
- the housing 2 with all pluggable high-voltage bushings 6, 7 and 8, as shown in Figure 1, illustrates.
- a redundant cable connection 35 he ⁇ recognizable, which allows the connection of two cable conductors.
- the housing 2 an insertion opening 22, and a output ⁇ concernedseinstellö réelle 36 has up. Both the whethersseinstellö réelle 36 and the
- the view into the input setting opening 36 is free, so that the selection device 37 facing it becomes recognizable.
- the selector 37 has voltage terminals 38, 39 and 40. With the help of a U-shaped adjusting ⁇ conductor 41, two of the voltage terminals 38 and 39 mitei ⁇ connected to each other.
- the Oberspan- is voltage winding of the transformer 1 is connected to the feedthrough ⁇ receptacle 10 of the high-voltage bushing 6, and thus upgraded for an input voltage of 345 kV.
- the output of a voltage of, for example, 138 kV takes place at the high-voltage bushing 8.
- the high-voltage bushing 7 can be dispensed with in the operating mode thus set.
- FIG. 16 illustrates the design of the housing 2 with the cooling module 5, the expansion vessel 4 and the two high-voltage modules. 6 and 7, which results in an input setting ⁇ ment of Figure 13.
- FIG. 14 illustrates a view into the input setting opening 22, wherein again a selection device 37 can be seen with its three voltage connections 38, 39 and 40.
- the connection conductor 41 connects the voltage connections 38 and 39, so that the voltage output at the high-voltage feedthrough 8 takes place.
- FIG. 15 shows a position in which the connecting conductor 41 connects the terminals 39 and 40 to one another. In the position thus shown, the voltage at the cable connection 35 drops, so that the high-voltage bushing 8 can be dispensed with.
- a configuration of the transformer 1 is ge ⁇ shows how the connecting conductors 41 of the selector 22 connects the voltage terminals 39 and 40th
- the upper transformer for voltages of 230kV is arranged, wherein at the Hochwoods sacrifice- tion 8 or a cable connection, a voltage of 115 kV sauce ⁇ can be attacked.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
- Insulating Of Coils (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102016207393.1A DE102016207393A1 (de) | 2016-04-29 | 2016-04-29 | Ersatztransformator mit modularem Aufbau |
PCT/EP2017/059842 WO2017186748A2 (de) | 2016-04-29 | 2017-04-26 | Ersatztransformator mit modularem aufbau |
Publications (3)
Publication Number | Publication Date |
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EP3427275A2 true EP3427275A2 (de) | 2019-01-16 |
EP3427275B1 EP3427275B1 (de) | 2024-04-03 |
EP3427275C0 EP3427275C0 (de) | 2024-04-03 |
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EP17720753.7A Active EP3427275B1 (de) | 2016-04-29 | 2017-04-26 | Ersatztransformator mit modularem aufbau |
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US (1) | US10460866B2 (de) |
EP (1) | EP3427275B1 (de) |
CN (1) | CN109155181B (de) |
BR (1) | BR112018071985B1 (de) |
CA (1) | CA3022259C (de) |
DE (1) | DE102016207393A1 (de) |
WO (1) | WO2017186748A2 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102017215460A1 (de) * | 2017-09-04 | 2019-03-07 | Siemens Aktiengesellschaft | Anordnung zum Anschluss an ein Hochspannungsnetz mit einstellbarer Impedanz |
CN109712790A (zh) * | 2017-10-25 | 2019-05-03 | 特变电工沈阳变压器集团有限公司 | 一种换流变压器用阀出线装置 |
DE102018200587A1 (de) | 2018-01-15 | 2019-07-18 | Siemens Aktiengesellschaft | Kabeltrommel für ein Hochspannungskabel |
WO2019137623A1 (de) | 2018-01-15 | 2019-07-18 | Siemens Aktiengesellschaft | Transportfähige leistungstransformatoreinheit |
DE102018200586A1 (de) | 2018-01-15 | 2019-07-18 | Siemens Aktiengesellschaft | Containeranordnung für eine transportable Leistungstransformatoreinheit |
DE102018203984A1 (de) * | 2018-03-15 | 2019-09-19 | Siemens Aktiengesellschaft | Elektrisches Gerät mit Umlenkeinrichtung |
CA3094832C (en) * | 2018-04-09 | 2023-04-18 | Siemens Aktiengesellschaft | Continuously adjustable saturable reactor |
DE102018206387A1 (de) * | 2018-04-25 | 2019-10-31 | Siemens Aktiengesellschaft | Steckbarer Überspannungsableiter |
DE102018222183A1 (de) | 2018-12-18 | 2020-06-18 | Siemens Aktiengesellschaft | Magnetisch regelbare Drosselspule in Reihenschaltung |
WO2020194128A1 (en) * | 2019-03-22 | 2020-10-01 | Efacec Energia - Máquinas E Equipamentos Eléctricos S.A. | Modular system applied to transformers |
CN111755211B (zh) * | 2020-05-26 | 2021-04-23 | 甬矽电子(宁波)股份有限公司 | 电源模组和电源模组制作方法 |
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US1693265A (en) * | 1928-11-27 | Casing for electrical apparatus | ||
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GB271168A (en) * | 1926-02-20 | 1927-05-20 | Alfred William George Tucker | Improvements relating to tanks for electrical apparatus |
US1859969A (en) * | 1929-05-18 | 1932-05-24 | Condit Electrical Mfg Corp | Unitary transforming and circuit interrupting apparatus |
DE944507C (de) * | 1942-08-27 | 1956-06-14 | Aeg | Transformator, dessen an dem Kessel angebrachte Kuehlkoerper durch Luefter angeblasen werden |
US3235823A (en) * | 1961-04-03 | 1966-02-15 | Mc Graw Edison Co | High voltage three phase transformer |
US3273053A (en) * | 1963-03-29 | 1966-09-13 | Jack W T Allen | Multiple connected transformer |
US3369166A (en) * | 1965-10-22 | 1968-02-13 | Westinghouse Electric Corp | Combination transformer-rectifier apparatus |
US3462645A (en) * | 1967-06-09 | 1969-08-19 | Westinghouse Electric Corp | Electrical transformer suitable for pole or vault mounting |
DE1971624U (de) | 1967-07-12 | 1967-11-02 | Paul Gatterbauer | Apparatebehaelter in abgeschlossener druckdichter bauweise. |
US3541487A (en) * | 1968-11-18 | 1970-11-17 | Westinghouse Electric Corp | Electrical winding having heat exchangers between layers of the winding for cooling the windings |
US3621426A (en) * | 1970-11-12 | 1971-11-16 | Westinghouse Electric Corp | Transformer with bushing compartment |
DE2224541A1 (de) * | 1972-05-19 | 1973-11-29 | Schorch Gmbh | Umklemmvorrichtung fuer mehrphasige hochspannungs-oeltransformatoren |
US4185688A (en) * | 1977-12-22 | 1980-01-29 | General Electric Company | Cooler fan noise suppressor |
DE3025661C2 (de) * | 1980-07-07 | 1982-11-04 | Transformatoren Union Ag, 7000 Stuttgart | Einrichtung zur Nutzbarmachung der Verlustwärme von im Inneren flüssigkeitsgekühlten Transformatoren oder Drosselspulen |
DD211012A1 (de) * | 1982-10-27 | 1984-06-27 | Liebknecht Transformat | Kuehlanlage fuer lokomotiv-transformatoren |
AT378623B (de) * | 1982-11-15 | 1985-09-10 | Elin Union Ag | Einrichtung zur thermischen ueberwachung von fluessigkeitsgekuehlten transformatoren und drosselspulen |
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US20110273255A1 (en) * | 2010-05-10 | 2011-11-10 | Robert Samuel Thompson | Endoskeletal transformer tank |
CN202695103U (zh) * | 2012-05-11 | 2013-01-23 | 特变电工股份有限公司 | 三相组合式变压器 |
-
2016
- 2016-04-29 DE DE102016207393.1A patent/DE102016207393A1/de active Pending
- 2016-05-19 US US15/159,350 patent/US10460866B2/en active Active
-
2017
- 2017-04-26 CN CN201780026485.3A patent/CN109155181B/zh active Active
- 2017-04-26 CA CA3022259A patent/CA3022259C/en active Active
- 2017-04-26 WO PCT/EP2017/059842 patent/WO2017186748A2/de active Application Filing
- 2017-04-26 BR BR112018071985-4A patent/BR112018071985B1/pt active IP Right Grant
- 2017-04-26 EP EP17720753.7A patent/EP3427275B1/de active Active
Also Published As
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US10460866B2 (en) | 2019-10-29 |
BR112018071985A2 (pt) | 2019-02-12 |
CA3022259A1 (en) | 2017-11-02 |
DE102016207393A1 (de) | 2017-11-02 |
US20170316864A1 (en) | 2017-11-02 |
EP3427275B1 (de) | 2024-04-03 |
CA3022259C (en) | 2021-07-20 |
WO2017186748A2 (de) | 2017-11-02 |
WO2017186748A3 (de) | 2017-12-21 |
CN109155181B (zh) | 2021-05-07 |
EP3427275C0 (de) | 2024-04-03 |
CN109155181A (zh) | 2019-01-04 |
BR112018071985B1 (pt) | 2023-04-25 |
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