WO2008012012A1 - Module de barre collectrice pour une installation de distribution à haute tension isolée par gaz - Google Patents

Module de barre collectrice pour une installation de distribution à haute tension isolée par gaz Download PDF

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Publication number
WO2008012012A1
WO2008012012A1 PCT/EP2007/006347 EP2007006347W WO2008012012A1 WO 2008012012 A1 WO2008012012 A1 WO 2008012012A1 EP 2007006347 W EP2007006347 W EP 2007006347W WO 2008012012 A1 WO2008012012 A1 WO 2008012012A1
Authority
WO
WIPO (PCT)
Prior art keywords
busbar
housing
phase conductor
busbar module
gas
Prior art date
Application number
PCT/EP2007/006347
Other languages
German (de)
English (en)
Inventor
Thomas Betz
Frank Vormwald
Ilango Gnanadhandapani
Edgar Dullni
Manuel Calleja
Volker Thomas
David Saxl
Thomas Braun
Original Assignee
Abb Technology 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 Abb Technology Ag filed Critical Abb Technology Ag
Publication of WO2008012012A1 publication Critical patent/WO2008012012A1/fr

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G5/00Installations of bus-bars
    • H02G5/06Totally-enclosed installations, e.g. in metal casings
    • H02G5/063Totally-enclosed installations, e.g. in metal casings filled with oil or gas
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035Gas-insulated switchgear

Definitions

  • the invention relates to a busbar module for a gas-insulated high-voltage switchgear according to the preambles of claims 1 and 18.
  • GIS Gas insulated switchgear
  • Plant components such as busbars, disconnectors, circuit breakers, converters, cable terminations and connecting elements are designed as gas-tight encapsulated modules.
  • As insulating gas usually sulfur hexafluoride (SF 6 ) is used, but other gases are used.
  • Busbars are designed for the distribution of power in panels with phase conductors and are used in particular as distribution modules to various functional modules, such as circuit breakers or disconnectors.
  • the individual phase conductors (L1, L2, L3) are usually arranged parallel to one another within a module. If there is a need for a switching field with several phase conductors per phase, several busbars are used, for example double-busbars, which are assembled from the above-mentioned modules.
  • Conventional gas-insulated switchgear operates with a spring-loaded drive for the circuit-breakers and a motorized drive for the disconnectors.
  • the busbar module according to the invention of the aforementioned type has a housing in which at least two bus bars, each having the at least two phases are arranged in the housing and that the corresponding phases of each busbar are arranged separately from each other electrically.
  • An advantage of this arrangement is that only one housing is required for multiple busbars in a gas-insulated high-voltage switchgear. This ensures a more cost-effective production of the switchgear and a comparatively compact arrangement. For example, when a triple busbar is required, only one housing is required instead of three busbar modules as before. A comparatively favorable mounting of the busbar module according to the invention is thereby made possible.
  • busbar module has at least two separate gas chambers.
  • the bus bars are arranged in the respective gas chambers. Later maintenance work on a busbar is particularly easy. In addition, only one attachment is required for mounting individual sections of the busbar module.
  • a further embodiment of the subject invention provides that a separating element is arranged, which is preferably designed as a straight partition and is positioned approximately centrally between the busbars.
  • the housing has at least two housing parts and that a gas-tight gas space is formed by the at least two housing parts.
  • a maintenance of one of the at least two busbars is then possible without a shutdown of an electrical system, wherein a current flow over at least one of the at least two busbars. Only one busbar in maintenance is switched off.
  • the Housing at least two housing parts, that is formed by the at least two housing parts a gas-tight gas space and that the housing parts with connecting elements, in particular with webs, are connected and / or welded. This increases the stability of the module against mechanical stress.
  • a further advantageous embodiment of the busbar module provides that the housing has a common connection flange on at least one connection side of the housing for the at least two busbars. In this way, the manufacturing costs are reduced and in the assembly of the module comparatively little time is taken. The space requirement for two or more connection flanges on a busbar module is also reduced by the use of a single flange for a module. It can be realized a more compact design of the busbar module and the switchgear.
  • a greater flexibility in the use of the busbar module according to the invention is advantageously achieved in that the housing each have a connection flange at least one connection side of the housing each one of the at least two busbars and / or that the housing for each of the at least two phase conductors on at least one connection side a connection flange having.
  • connecting flange per busbar also serves as a connecting element to another high-voltage switchgear module, for example in a busbar module known since then.
  • a branching of the phase conductors to and / or from outside the busbar module is also possible, in which an additional connection flange is attached to the housing and a branching of the respective busbar is performed.
  • an additional connection flange is attached to the housing and a branching of the respective busbar is performed.
  • a further advantageous embodiment of the busbar module provides that in the housing at least one converter per phase and / or a converter per phase conductor of a busbar is arranged, preferably in the vicinity of a connection flange.
  • a measurement of currents and voltages in the region of the busbars or phase conductors is therefore feasible according to the invention without additional space requirement.
  • each of the at least two busbars is formed in three phases, that form the phase conductors of each busbar as a cross-sectional view of the longitudinal extent of the vertices of an imaginary triangle, and that those sides of the imaginary triangles are arranged in parallel, which is the smallest distance to each other, wherein the imaginary triangles are spaced from each other.
  • the distance between the two imaginary triangles is essentially arbitrary, provided that a minimum distance is maintained according to the occurring voltage and relevant regulations.
  • the busbars with the phase conductors can be particularly space-saving in a correspondingly preferred housing with an oval cross-section, wherein the necessary distances of the housing to the phase conductors are taken into account. It is particularly favorable if the phase conductors of the busbars of the same phase are adjacent to one another. The distance between the busbars to each other is thereby considerably reduced.
  • the busbar module has a compact design has a correspondingly small footprint.
  • phase conductors per busbar in cross-section to form its longitudinal extent a thought triangle and the farthest sides of the imaginary triangle are parallel to each other, the imaginary triangles of each other which are spaced. Again, one must not fall below a minimum distance due to the voltage occurring the phase conductor distance.
  • busbar module has at least one disconnector and / or at least one circuit breaker.
  • the space required for the busbar module according to the invention is thus even lower compared to the space requirements of the modules since known HS systems.
  • the at least one disconnector and / or at least one circuit breaker can be acted upon by a drive, in particular a sequential drive, and in that a drive cooperates with at least two disconnectors and / or circuit breakers.
  • a development of the subject invention provides that the circuit breaker and / or the earth electrode and / or the converter and / or the separator are arranged in the gas space or separately in other rooms.
  • the arrangement of the devices in the busbar module further reduces the space requirement accordingly.
  • the devices can be arranged in a space-optimized way.
  • the object is also achieved with a high-voltage switchgear with the features according to claim 18.
  • a compact system is already achieved by the use of a busbar module according to the invention.
  • ⁇ irh Due to the particularly space-saving construction of the module, ⁇ irh can realize a compact gas-insulated high-voltage switchgear and the installation time can be correspondingly reduced.
  • the switchgear is particularly compact, inexpensive and easy to install.
  • a switchgear is such that the drive is arranged from / to a module outside the collector rail.
  • Figure 1 switchgear with a first busbar module with a double busbar
  • Figure 3 sectional view through a second busbar module
  • Figure 4a-c cross sections through several busbar modules
  • FIG. 1 shows an embodiment of a first gas-insulated high-voltage switchgear (GIS) 18, which usually contains cable feeders, circuit breakers, busbar modules, disconnectors, converters and other equipment.
  • GIS gas-insulated high-voltage switchgear
  • FIG. 1 shows an embodiment of a first gas-insulated high-voltage switchgear (GIS) 18, which usually contains cable feeders, circuit breakers, busbar modules, disconnectors, converters and other equipment.
  • GIS 18 with a first busbar module 1 according to the invention is shown in the illustration.
  • On a first housing 26 of the first busbar module 1 four connecting flanges, a first connecting flange 13, a second connecting flange 14, a third connecting flange 23 and a fourth connecting flange 24 are shown.
  • connection flanges 13, 14, 23, 24 represent the possibility of connecting a first busbar 2 and a second busbar 3 to other external modules, such as connecting lines or other devices, which are not shown in this figure, or first external current transformer 21 or second external current transformers 22.
  • the first 13 and second connection flanges 14, 14 act as incoming connection flanges of the first connection side 85, third 23 and fourth connection flange 24 as outgoing connection flanges on the second connection side 86.
  • the connection flanges are on the first 2 and second busbars 3 and are thus arranged on the input and output side of the first busbar module 1.
  • the first external current transformer 21 is used to measure the current of its associated first busbar 2, while the second external current transformer 22 measures the current of the second busbar 3.
  • the first 21 and second external current transformers 22 are connected in a modular design to the third and fourth connection flange 23, 24.
  • the first 21 and second external Current transformers 22 are designed to be accessible from the outside and can be easily removed for example for maintenance tasks.
  • a first drive 15 is arranged on the outside of the first housing 26.
  • the functional relationship of the first drive 15 with other resources, such as isolator switch or circuit breaker is described in more detail in Figure 2.
  • the first housing 26 has a first gas-insulated space 25 with the insulating gas sulfur hexafluoride (SF ⁇ ) which serves as a switching and insulating means.
  • SF ⁇ insulating gas sulfur hexafluoride
  • this is a switchgear with 72.5 kV maximum rated voltage, a nominal current of 2500 A and a nominal breaking current of 315 kA.
  • the first 2 and second busbars 3 are arranged, which form a double busbar.
  • Each first 2 and second busbar 3 contains in three-phase operation three phase conductors for transmitting an alternating current of different phase, usually with the designations L1, L2, L3.
  • Each of the phase conductors is assigned to the output side of the first busbar module 1, a first power switch 10 and is arranged in the embodiment in the first housing 26 of the first Sammelschie ⁇ enmoduls 1.
  • the first power switch 10 is designed for switching under load.
  • each of the phase conductors of the first 2 and second busbar 3 is assigned a first isolator / ground combination switch 11.
  • This first disconnector / earthing combination switch 11 consists essentially of a first disconnector switch 16 and a first earthing switch 17.
  • the first disconnector switch 16 is such that only a switching without load can be performed and is usually used for secure switching off.
  • the first earthing switch 17 is provided for grounding the busbar module.
  • the first isolator / earth combination switch 11 has three switch combinations, namely "on”, “off” and “earthed”, and serves grounding in the de-energized state. This is explained in greater detail in FIG however, the first power switch 10 is usually first switched off from the mains at the first busbar module 1.
  • Figure 2 shows a diagram of the relationships between the drive and the resources. The dashed-dotted line represents the system boundary of the second busbar module 40. If the second busbar module 40 is switched off by a second drive 36, the second power switch 37 is first set to its "off” position and thus opened (FIG. see Figures 1 and 5.) This is represented by a first arrow 29.
  • the second disconnector switch 38 (represented by a second arrow 30) opened by the second drive 36, which is indicated by the third
  • the second drive 36 then controls, illustrated by a fourth arrow 32, the second earth electrode 39 (shown with the fifth arrow 33).
  • the second earthing switch 39 is opened by means of the second drive 36 (fifth arrow 33) and thus the busbar is disconnected from the earth potential. Thereafter (sixth arrow 34), the second disconnector switch 38 is acted upon by the second drive 36 (third arrow 31). Only when the second disconnector switch 38 is closed (seventh arrow 35), an actuation of the second circuit breaker 37 is possible. The second drive 36 closes the second power switch 37 and the output side electrical system is thus "under voltage.” In order to disconnect the electrical system from the network again, the above-described operations are carried out in the reverse order.
  • a sequential drive is used for the second drive 36.
  • the above-mentioned releases or locks between the second power switch 37 and the second disconnector switch 38 and between the second disconnector switch 38 and the second earthing switch 39 are implemented in a simple manner, while the second drive 36, the three switching devices 37, 38 and 39 in the prescribed time sequence applied.
  • FIG. 3 shows an illustration of a third busbar module 41 with a double busbar as a side view on its longitudinal extent with a third busbar 42 and a fourth busbar 43.
  • a second connection housing 12 has a common connection flange 12 on the one hand and two connection flanges, a fifth connection flange 44 the third busbar 42 and a sixth Connection flange 45 for the fourth busbar 43 on the other hand arranged.
  • the common connection flange 12 is arranged the third 42 and the fourth bus bar 43.
  • single busbar modules with only one busbar can be arranged on the fifth 44 or the sixth connection flange 45, while the common connection flange 12 can be connected to a further busbar module having at least one common connection flange 12.
  • the fifth 44, the sixth flange 45 or the common flange 12 are also switching devices such as circuit breakers, isolator switch, ground, disconnector / earthing combination switch or other resources such as transducers for voltage and current measurement / determination or other equipment parts of a switchgear connectable.
  • busbar modules having a plurality of busbars are conceivable for those skilled in the art.
  • a common connection flange 12 other conventional, for example, single or three-phase connection flanges can be used.
  • FIGS. 4a to 4c show different cross-sections to the longitudinal extent of double busbars of a busbar module according to the invention, wherein the phase conductor is discussed in particular with regard to various possible arrangements.
  • FIG. 4 a shows a third housing 51 of a first double busbar module 48 that is oval in this view.
  • the first double busbar module 48 is a double busbar with a fifth busbar 49 with the associated phase conductors, namely a first phase conductor 4, a second phase conductor 5 and a third phase conductor 6 and a sixth busbar 50 with a fourth phase conductor 7, a fifth phase conductor 8 and a sixth Phase conductor 9.
  • 50 areas are drawn by dashed lines around the fifth busbar 49 and the sixth busbar.
  • the first phase conductor 4, the second phase conductor 5 and the third phase conductor 6 of the fifth busbar 49 form a first triangle 52 and the fourth phase conductor 7, the fifth phase conductor 8 and the sixth phase conductor 9 of the sixth busbar 50 form a second imaginary triangle 53 ; where Hie triangles 52, 53 are configured equilateral.
  • the two phase conductors of the same phase position are preferably closest to each other.
  • a first distance d1 of the triangles to each other in this case is the distance of the phase conductors with the respective same phase, namely for example between the first phase conductor 4 with the conventional designation L1 and the fourth phase conductor 7 with the same phase position or the second phase conductor 5 with the conventional designation L2 and the fifth phase conductor 8 of the same phase position.
  • the distance d1 is only the respective safety distance for the simple phase voltage, since the maximum between the first phase conductor 4 and the fourth phase conductor 7, the only simple phase voltage can occur. If the first phase conductor 4 and second phase conductor 7 had different phase positions, then the first distance d1 would have to be calculated according to the outer conductor voltage.
  • the phase conductors 4 to 9 are taking into account the spacing rules space-optimized in the third housing 51 to order.
  • FIG. 4b shows a second arrangement of phase conductors in a second double busbar module 54.
  • the assignment of a seventh phase conductor 55, an eighth phase conductor 56 and a ninth phase conductor 57 to a seventh busbar 58 is characterized by a dot-dash line as in the figure. Accordingly, the area of the eighth busbar 59 with the tenth phase conductor 60, eleventh phase conductor 61 and twelfth phase conductor 62 is also drawn.
  • Both the seventh phase conductor 55, the eighth phase conductor 56 and the ninth phase conductor 57 and the tenth phase conductor 60, the eleventh phase conductor 61 and the twelfth phase conductor 62 each form the vertices of a third imaginary triangle 63 and the vertices of a fourth imaginary triangle 64.
  • the furthest apart sides of the third imaginary triangle 63 and the fourth imaginary triangle 64 are located here parallel to each other. The thus pointing to each other tip of the triangle and at the actuator of their smallest distance d2 of the seventh busbar 58 to the eighth busbar 59, namely the eighth phase conductor 56 and the eleventh phase conductor 61, are in the same phase position.
  • FIG. 4c shows a further possibility for arranging phase conductors in a third double busbar module 65.
  • the fourth housing 66 of the third double busbar module 65 circumscribes a third housing 67 enclosed by the housing.
  • the third housing 67 enclosed by the housing is divided into two separate gas chambers, a first gas chamber 27 and a second gas chamber 28, which is represented by a dot-dash line. Line is marked.
  • a ninth bus bar 68 is arranged with a thirteenth phase conductor 69, a fourteenth phase conductor 70 and a fifteenth phase conductor 71.
  • a tenth bus bar 72 is arranged with a sixteenth phase conductor 73, with a seventeenth phase conductor 74 and with an eighteenth phase conductor 75.
  • the phase conductors per busbar are arranged in a line parallel to the dash-dot line.
  • the distance d3 between the phase conductors of the ninth busbar 68 and the tenth busbar 72 the same phase position is chosen to be minimal according to the simple phase conductor spacing.
  • the third distance d3 can be set for each phase with the comparatively small distance corresponding to d2 because of the simple phase voltage spacing. This leads to a busbar housing, which is particularly flat in this view.
  • FIGS. 4a, 4b, 4c each show a cross section of a busbar module.
  • the housing and three phase conductors of two busbars can be seen in each case.
  • a circuit breaker for each phase conductor within the housing of the busbar modules.
  • the circuit breaker is designed for example as a rotary separator or as a slide separator. Instead of a pure circuit breaker is also conceivable to provide a known combined isolation ground switch.
  • the busbar module shown in Fig. 4c has for each busbar each have a separate gas space, which are separated by the indicated dash-dot line.
  • a bulkhead insulator is arranged, which separates the said gas chambers from each other.
  • a bulkhead insulator which separates the interior of the respective busbar housing into two gas chambers, can also be arranged in the busbar modules illustrated in FIGS. 4a and 4b. Each busbar is then arranged in a separate gas space.
  • the housing of such a busbar module consists of two housing parts, which are fastened to one another and to the bulkhead insulator, in particular screwed. A gas space is then enclosed in each case by a housing part and the bulkhead insulator. It is conceivable to provide a separate connection flange for each gas space, through which connection conductors are routed to a circuit breaker. The connection conductors of a busbar are guided through the same connection flange.
  • busbar module there is the advantage that a housing part can be removed for repair or maintenance purposes.
  • the busbar which is arranged in the then open gas space, while the insulating gas still remains in the other gas space; the busbar in the second gas space can then remain in operation, ie under tension.
  • FIGS. 4a to 4c of an arrangement of the phase conductors in a double busbar module can be used correspondingly for busbar modules with multiple busbars.
  • busbars form five triangles and considered as a whole, forming the shape of a pentagon.
  • Further busbars can be realized in a circular arrangement in a busbar module.
  • FIG. 5 shows a further exemplary embodiment of a fourth busbar module 76.
  • a fifth housing 77 of the fourth busbar module 76 is shown, in which fifth housing 77 two busbars in parallel, namely an eleventh busbar 78 and a twelfth busbar 79 are arranged, the eleventh busbar 78 representing the input side, the twelfth busbar 79 the output side ,
  • Each of the busbars has at least two, but the same number of phase conductors, which are not shown for clarity.
  • the input of the eleventh busbar 78 forms a ninth connection flange 84, the output of the twelfth busbar 79 a tenth connection flange 85.
  • a first internal current transformer 19 and on the twelfth busbars 79 on the output side a second internal current transformer 20 attached.
  • the first 19 and second internal power converters 20 are arranged in a third gas-insulated space formed by the fifth housing 77.
  • a third power switch 80 is designed for switching an electrical system.
  • a second disconnector / earthing combination switch 81 is connected to the fourth busbar module 76 as a separate module via a seventh connection flange 82 and an eighth connection flange 83.
  • the seventh connection flange 82 is at the outlet of the eleventh busbar 78
  • the eighth connection flange 83 is arranged at the input of the twelfth busbar 79.
  • FIG. 5 shows the fourth busbar module 76 in the switched-off operating state.
  • the operating situation of the fourth busbar module 76 is selected such that a current flow flows on the input side via a ninth connection flange 84, the eleventh busbar 78 and the first internal current transformer 19 into the fourth busbar module 76.
  • the current is supplied from the eleventh bus 78 via the seventh connecting flange 82 out again out of the eleventh busbar 78 out.
  • a module is connected to a second disconnector / earthing combination switch 81, so that the current flow flows through this second disconnector / earthing combination switch 81.
  • Second disconnector / earthing combination switch 81 is provided by an electrical connection via an eighth flange 83 with the twelfth busbar 79 of the busbar module 1. From there, the current flows through the third power switch 80 and the second internal power converter 20 on the twelfth busbar 79. The power is conducted from the twelfth busbar 79 to a tenth connection flange 85 and is thus provided for further use in other modules.
  • a connection to the network of the fourth busbar module 76 can be carried out as follows:
  • the initial situation is that the second isolator / earth combination switch 81 has a switching position to ground, which is referred to as the end position.
  • the disconnector / earthing combination switch 81 is first brought to a middle position. Once the center position (or neutral position) of the second earth / earth combination switch 81 is reached, the second earth / earth combination switch 81 is switched by a drive so that an electrically conductive connection between the eleventh bus bar 78 and the twelfth bus bar 79 is made. Once this is done, the third power switch 80 is energized by the drive. After performing this step, the electrical system connected on the output side is switched to the mains.
  • the second isolator / earthing combination switch 81 is acted upon so that it is initially in a middle position ("off") and The twelfth busbar 79 is then routed to ground potential by further energizing the second divider / earthing combination switch 81 in an "earthing" position and thus the potential of the twelfth busbar 79 in the event of any currents occurring.

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

La présente invention concerne un module de barre collectrice pour une installation de distribution à haute tension isolée par gaz comportant un boîtier et au moins deux phases. Au moins deux barres collectrices se trouvent dans le boîtier, lesquelles barres présentent respectivement au moins deux phases. Les phases de chaque barre collectrice sont montées dans le boîtier de manière à se trouver électriquement séparées les unes des autres. Le module de barre collectrice selon cette invention peut ainsi être contenu dans une installation de distribution à haute tension isolée par gaz.
PCT/EP2007/006347 2006-07-22 2007-07-18 Module de barre collectrice pour une installation de distribution à haute tension isolée par gaz WO2008012012A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006033954A DE102006033954A1 (de) 2006-07-22 2006-07-22 Sammelschienenmodul für eine gasisolierte Hochspannungsschaltanlage
DE102006033954.1 2006-07-22

Publications (1)

Publication Number Publication Date
WO2008012012A1 true WO2008012012A1 (fr) 2008-01-31

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Application Number Title Priority Date Filing Date
PCT/EP2007/006347 WO2008012012A1 (fr) 2006-07-22 2007-07-18 Module de barre collectrice pour une installation de distribution à haute tension isolée par gaz

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WO (1) WO2008012012A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110233581A (zh) * 2018-03-02 2019-09-13 富士电机株式会社 电力变换装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3775550A (en) * 1972-01-14 1973-11-27 Siemens Ag Electric high-voltage polyphase power transmission system
DE3004791A1 (de) * 1980-02-07 1981-08-13 Siemens AG, 1000 Berlin und 8000 München Eingeerdete mehrpolige, gekapselte druckgasisolierte hochspannungsleitung
JPH05103404A (ja) * 1991-10-03 1993-04-23 Toshiba Corp ガス絶縁開閉装置

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Publication number Priority date Publication date Assignee Title
DE2924430A1 (de) * 1979-06-16 1980-12-18 Bbc Brown Boveri & Cie Metallgekapselte, sf tief 6 -gasisolierte schaltanlage
JPS61292829A (ja) * 1985-06-21 1986-12-23 三菱電機株式会社 三相一括形ガス遮断器
JPS61295802A (ja) * 1985-06-25 1986-12-26 三菱電機株式会社 ガス絶縁開閉装置
DE4210370A1 (de) * 1992-03-30 1993-10-07 Abb Patent Gmbh Hochspannungsschaltfeld
JPH10150707A (ja) * 1996-11-19 1998-06-02 Mitsubishi Electric Corp ガス絶縁開閉装置
DE19825386C2 (de) * 1998-05-28 2000-05-11 Siemens Ag Kapselungsbaustein mit einem kombinierten Trenn-Erdungs-Schalter für eine gasisolierte Schaltanlage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3775550A (en) * 1972-01-14 1973-11-27 Siemens Ag Electric high-voltage polyphase power transmission system
DE3004791A1 (de) * 1980-02-07 1981-08-13 Siemens AG, 1000 Berlin und 8000 München Eingeerdete mehrpolige, gekapselte druckgasisolierte hochspannungsleitung
JPH05103404A (ja) * 1991-10-03 1993-04-23 Toshiba Corp ガス絶縁開閉装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110233581A (zh) * 2018-03-02 2019-09-13 富士电机株式会社 电力变换装置

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