A GIS

Abstract

The present invention discloses a GIS, which relates to the technical field of switchgear. The electromagnetic coil of the voltage mutual inductance mechanism is electrically connected to the first terminal, and the connection coil of the mutual inductance mechanism is electrically connected to the second terminal, so as to perform voltage conversion through the device. Among them, by providing a detachable connector between the ports at the first end and the second end of the iron core of the mutual inductance mechanism, the first end and the second end of the iron core can be switched between the connected path state and the separated open circuit state, thereby realizing a detachable assembly method between the iron core and the electromagnetic coil, which can not only achieve rapid disassembly and assembly, but also facilitate maintenance. The one-way valve is connected to the first half shell and can introduce SF6 gas into the interior of the housing, thereby providing a protective environment inside, reducing the occurrence of electric arcs, and improving the reliability and safety of the GIS. The second stable docking control seat is elastically installed with the housing through an elastic buffer member, and the elastic buffer member can be used to provide buffer protection to prevent the device from being damaged by vibration.

Description

Technical Field

[0001] The present invention relates to the technical field of switchgear, and particularly to a GIS. Background Art

[0002] GIS is a gas-insulated switchgear, and voltage conversion is achieved through a voltage transformer inside the GIS. A voltage transformer is an instrument used to transform voltage. The purpose of transforming voltage by a voltage transformer is mainly to supply power to measuring instruments and relay protection devices, to measure the voltage, power, and electric energy of a circuit, or to protect valuable equipment, motors, and transformers in the circuit when a fault occurs in the circuit. Therefore, the capacity of a voltage transformer is very small, generally only a few volt-amperes or dozens of volt-amperes, and the maximum does not exceed one thousand volt-amperes.

[0003] Common voltage transformers achieve voltage change regulation through electromagnetic induction, so as to achieve the purpose of circuit voltage regulation. However, existing voltage transformers mostly adopt a fixed assembly structure, which is not convenient for disassembly, maintenance, and regulation, increasing the maintenance cost and difficulty of the GIS. Summary of the Invention

[0004] The object of the present invention is to provide a new type of GIS, in which the iron core and electromagnetic coil in the voltage transformer are assembled in a detachable manner, enabling rapid installation and convenient maintenance, so as to solve the problem of inconvenient maintenance existing in the above-mentioned prior art.

[0005] To achieve the above object, the present invention provides the following solution: The present invention provides a GIS, including a housing, a first terminal, a second terminal, and a voltage transformer. The voltage transformer is disposed within the housing. The voltage transformer includes a voltage mutual induction mechanism and a cooperative mutual induction mechanism, wherein: The voltage mutual induction mechanism includes a first stable docking control seat, a connecting conductive rod, an insulating sleeve seat, an electromagnetic coil, and a second stable docking control seat. The electromagnetic coil is wound around the insulating sleeve seat. The first stable docking control seat is located on one side of the insulating sleeve seat and is fixed to the insulating sleeve seat through the connecting conductive rod. And the connecting conductive rod is electrically connected to the electromagnetic coil. The second stable docking control seat is located on the other side of the insulating sleeve seat. A docking insulating seat is provided on the second stable docking control seat. The docking insulating seat is fixed to the insulating sleeve seat through an insulating protection rod. The first terminal is disposed outside the housing and is electrically connected to the connecting conductive rod through a wire. The cooperative mutual induction mechanism includes a connecting coil and an iron core. The first end of the iron core is wound with the connecting coil. The second terminal is disposed outside the housing and is electrically connected to the connecting coil through a wire. The insulating sleeve seat and the electromagnetic coil are inserted outside the first end of the iron core. The first end and the second end of the iron core are connected through a detachable connector. The detachable connector can switch the first end and the second end of the iron core between a connected path state and a separated open circuit state.

[0006] Preferably, the detachable connector includes a cooperative clamping frame, an arc-shaped flipping frame, a spring guide rod, and a spring, wherein: A cooperative clamping frame is provided on the side wall of one end of the first end and the second end of the iron core. A spring guide rod is provided on the side wall of the other end. The spring is sleeved outside the spring guide rod. The first end of the arc-shaped flipping frame is slidably hinged to the spring guide rod, and the first end of the arc-shaped flipping frame is located between the spring and the end of the spring guide rod. In the connected path state, the arc-shaped flipping frame is pressed by the elastic force of the spring, and the second end of the arc-shaped flipping frame fits with the cooperative clamping frame. Press the arc-shaped flipping frame, the spring is compressed, the second end of the arc-shaped flipping frame is separated from the cooperative clamping frame, and the arc-shaped flipping frame is rotated around the spring guide rod to switch to the separated open circuit state.

[0007] Preferably, the cooperative clamping frame is provided on the side wall of the first end of the iron core; the spring guide rod is provided on the side wall of the second end of the iron core.

[0008] Preferably, a set of the detachable connectors is provided on both sides of the first end and the second end of the iron core respectively.

[0009] Preferably, the outer shell is a columnar outer shell, which includes a first half shell, a second half shell, a first end cover and a second end cover. The first half shell and the second half shell are detachably docked and installed. An installation inner cavity is formed between the first half shell and the second half shell. The first end cover and the second end cover are respectively arranged at two axial ends of the installation inner cavity, and the voltage transformer is installed in the installation inner cavity.

[0010] Preferably, the outer shell, the first stable docking control seat, the insulating sleeve seat, the electromagnetic coil and the second stable docking control seat are coaxially installed, and the first stable docking control seat is in contact with the first end cover. An elastic buffer is arranged on one side of the second stable docking control seat facing the second end cover, and the second stable docking control seat is tightly abutted against the second end cover through the elastic buffer.

[0011] Preferably, the outer shell further includes a first communication guide seat and a second communication guide seat, where: the first communication guide seat is arranged on the first end cover, and the first wiring terminal is fixed on the first communication guide seat; the second communication guide seat is arranged on the second end cover, and the second wiring terminal is fixed on the second communication guide seat.

[0012] Preferably, the outer shell further includes a reinforcing frame, and the reinforcing frames are arranged on the outer side walls of the first half shell and the second half shell.

[0013] Preferably, the connecting conductive rod is inserted and fixed with the insulating sleeve seat; the insulating protection rod is inserted and fixed with the docking insulating seat.

[0014] Preferably, a one-way valve communicating with the inside of the outer shell is arranged on the outer shell, and the one-way valve is used to convey a protective gas into the outer shell.

[0015] The present invention has achieved the following technical effects compared with the prior art: The GIS proposed by the present invention has a reasonable structural design. The connecting coil is electrically connected to the second wiring terminal, and the electromagnetic coil is electrically connected to the first wiring terminal, so as to perform voltage transformation through the device. Among them, by arranging a detachable connector between the ports at the first end and the second end of the iron core, the first end and the second end of the iron core can be switched between a connected path state and a separated open state, so as to realize a detachable assembly method of the iron core and the electromagnetic coil, which can not only achieve quick disassembly and assembly, but also facilitate maintenance.

[0016] In some technical solutions disclosed by the present invention, the detachable connector adopts a combination of a matching card rack, an arc-shaped flipping rack, a spring guide rod and a spring. The arc-shaped flipping rack can rotate and adjust around the spring guide rod and slide and adjust relative to the spring guide rod, so as to facilitate the disassembly and assembly of the matching mutual inductance mechanism and the voltage mutual inductance mechanism, with simple operation and easy maintenance. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic three-dimensional structure diagram of the GIS disclosed in the embodiments of the present invention.

[0019] Figure 2 It is a schematic side three-dimensional view of the GIS disclosed in the embodiments of the present invention.

[0020] Figure 3 It is a schematic diagram of the internal structure of the shell of the GIS disclosed in the embodiments of the present invention.

[0021] Figure 4 It is a schematic diagram of the structure of the voltage transformer in the GIS disclosed in the embodiments of the present invention.

[0022] Figure 5 It is a schematic diagram of the disassembled structure of the voltage transformer in the GIS disclosed in the embodiments of the present invention.

[0023] Figure 6 It is a schematic diagram of the structure of the mutual inductance mechanism in the voltage transformer disclosed in the embodiments of the present invention.

[0024] In the figure, the reference numerals are: 100 - GIS; 1 - first wiring terminal; 2 - first communication guide base; 3 - one-way valve; 4 - stabilizing base; 5 - second communication guide base; 6 - second wiring terminal; 7 - first half shell; 8 - reinforcing frame; 9 - connecting bolt; 10 - second half shell; 11 - voltage mutual inductance mechanism; 12 - first stable docking control base; 13 - communication conductive rod; 14 - insulating sleeve base; 15 - electromagnetic coil; 16 - insulating protection rod; 17 - mutual inductance mechanism; 18 - docking insulating base; 19 - second stable docking control base; 20 - spring protection rod; 21 - connecting coil; 22 - iron core; 23 - mating clamping frame; 24 - arc-shaped turning frame; 25 - spring guide rod; 251 - limit baffle; 26 - first end cover; 27 - second end cover. Specific embodiments

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0026] The object of the present invention is to provide a novel GIS, in which the iron core and the electromagnetic coil in the voltage transformer are assembled in a detachable manner, enabling quick disassembly and assembly and facilitating maintenance, so as to solve the problem of inconvenient maintenance existing in the prior art.

[0027] To make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] As Figures 1 to 6 shown, this embodiment provides a GIS 100, which includes a housing, a first terminal 1, a second terminal 6 and a voltage transformer. The voltage transformer is arranged inside the housing. The voltage transformer includes a voltage mutual induction mechanism 11 and a matching mutual induction mechanism 17, wherein: the voltage mutual induction mechanism 11 includes a first stable docking control seat 12, a connecting conductive rod 13, an insulating sleeve seat 14, an electromagnetic coil 15 and a second stable docking control seat 19. The electromagnetic coil 15 is wound around the insulating sleeve seat 14. The first stable docking control seat 12 is located on one side of the insulating sleeve seat 14 and is fixed to the insulating sleeve seat 14 through the connecting conductive rod 13, and the connecting conductive rod 13 is electrically connected to the electromagnetic coil 15. Generally, two connecting conductive rods 13 are provided, and both ends of the electromagnetic coil 15 are respectively electrically connected to the two connecting conductive rods 13; the second stable docking control seat 19 is located on the other side of the insulating sleeve seat 14. A docking insulating seat 18 is provided on the end face of the second stable docking control seat 19 facing the insulating sleeve seat 14. The docking insulating seat 18 is fixed to the insulating sleeve seat 14 through an insulating protection rod 16. The first terminal 1 is arranged outside the housing and is electrically connected to the connecting conductive rod 13 through a wire. The matching mutual induction mechanism 17 includes a connecting coil 21 and an iron core 22. The iron core 22 is a U-shaped iron core. The connecting coil 21 is wound around the first end of the iron core 22. The second terminal 6 is arranged outside the housing and is electrically connected to the connecting coil 21 through a wire. The insulating sleeve seat 14 and the electromagnetic coil 15 are inserted outside the first end of the iron core 22. The ports between the first end and the second end of the iron core 22 are connected through a detachable connector, and the detachable connector can switch the first end and the second end of the iron core 22 between a connected path state and a separated open circuit state.

[0029] In some embodiments, the detachable communicating vessel includes a matching bracket 23, an arc-shaped flip frame 24, a spring guide rod 25 and a spring, wherein: a matching bracket 23 is provided on the side wall of one of the first end and the second end of the iron core 22, and a spring guide rod 25 is provided on the side wall of the other end, the spring is sleeved outside the spring guide rod 25, the first end of the arc-shaped flip frame 24 is slidingly hinged to the spring guide rod 25, and the first end of the arc-shaped flip frame 24 is located between the spring and the end of the spring guide rod 25, and the end of the spring guide rod 25 is provided with a limit baffle 251 that can prevent the arc-shaped flip frame 24 from slipping. It should be noted that the aforementioned “sliding hinge” means that the first end of the arc-shaped flip frame 24 is both hinged to the spring guide rod 25 and can slide on the spring guide rod 25 relative to the spring guide rod 25. Generally, it is preferred that the spring guide rod 25 is a round rod structure, and a circular collar is provided at the first end of the arc-shaped flip frame 24. The circular collar is slidably mounted on the spring guide rod 25, and the circular collar is preferably clearance-matched with the spring guide rod 25 so that the circular collar can rotate around the spring guide rod 25. Based on the above structure, the end of the spring away from the limit baffle 251 is generally fixed to the spring guide rod 25, and the end of the spring close to the limit baffle 251 is installed between the limit baffle 251 and the first end of the arc-shaped flip frame 24. The first end of the arc-shaped flip frame 24 is in contact with the limit baffle 251 and the spring, but not connected. Figure 6 The figure shows the connection passage state of the detachable communicating vessel. In this state, the spring is in a released state, and the arc-shaped flip frame 24 is pressed by the elastic force of the spring, so that the first end of the arc-shaped flip frame 24 is pressed against the limit baffle 251, and the second end of the arc-shaped flip frame 24 is tightly fitted with the matching bracket 23. The pressing force of the spring is sufficient to maintain the fitting state of the second end of the arc-shaped flip frame 24 and the matching bracket 23, so that the first end and the second end of the iron core 22 are connected by the arc-shaped flip frame 24, and the insulation sleeve 14 is prevented from being separated from the iron core 22. When it is necessary to switch to the separation and disconnection state, the arc-shaped flip frame 24 is first pressed to compress the spring, and the second end of the arc-shaped flip frame 24 is separated from the matching bracket 23, and then the arc-shaped flip frame 24 is moved to rotate around the spring guide rod 25, so that the first end and the second end of the iron core 22 can be opened. At this time, the first end and the second end of the iron core 22 are switched to the separation and disconnection state, and the insulation sleeve 14 can be removed from the iron core 22. When the arc-shaped flip frame 24 is assembled with the matching clamp frame 23 again, the arc-shaped flip frame 24 can be pressed first, and then the arc-shaped flip frame 24 can be flipped to Figure 6 The angle shown is then released, and the second end of the arc-shaped flip frame 24 can be fitted with the matching bracket 23. Figure 5 and Figure 6 As shown, the side wall of the first end of the iron core 22 is provided with a matching bracket 23, and the side wall of the second end of the iron core 22 is provided with a spring guide rod 25. Whether the matching bracket 23, the arc-shaped flip frame 24 and the spring guide rod 25 are all conductive parts.

[0030] In some embodiments, such as Figure 5 and Figure 6 shown, preferably, a set of the aforementioned detachable connectors is respectively arranged on both sides of the first end and the second end of the iron core 22, and the two sets of detachable connectors are symmetrically arranged. As a preferred solution, the two sets of detachable connectors can share a spring guide rod 25. Specifically: The spring guide rod 25 is fixed to the second end of the iron core 22, and both ends of the spring guide rod 25 extend out a certain length for the installation of two sets of arc-shaped turning frames 24; Limiting baffles 251 are respectively arranged at both ends of the spring guide rod 25. The structures and installation methods of the two sets of arc-shaped turning frames 24 are the same, and each set of arc-shaped turning frames 24 is respectively configured with a spring, and the spring is sleeved on the extended part of the spring guide rod 25. Based on the above structure, when switching between the connection path state and the separation open circuit state, corresponding opening and closing operations need to be performed on both sets of detachable connectors. It should be noted that when it is necessary to switch the detachable connector between the connection path state and the separation open circuit state, the GIS should be powered off to ensure the safety of the operation.

[0031] In some embodiments, such as Figure 1 and Figure 2 shown, the aforementioned outer shell is mainly used for external protection of the voltage transformer. The outer shell is preferably a columnar outer shell, which includes a first half shell 7, a second half shell 10, a first end cover 26 and a second end cover 27. The first half shell 7 and the second half shell 10 are detachably butt-jointed and installed. An axially coaxial columnar installation inner cavity is formed between the first half shell 7 and the second half shell 10. The first end cover 26 and the second end cover 27 are respectively arranged at both axial ends of the installation inner cavity to ensure the sealing performance of the installation inner cavity. The voltage transformer is installed in the installation inner cavity, and preferably, the installation inner cavity of the outer shell, the first stable butt-joint control seat 12, the insulating sleeve seat 14, the electromagnetic coil 15 and the second stable butt-joint control seat 19 are coaxially installed. The outer peripheral contour of the entire voltage transformer matches the inner contour of the installation inner cavity, which can prevent the voltage transformer from shaking after installation; and the first stable butt-joint control seat 12 is in contact with the first end cover 26, and an elastic buffer is arranged on the side of the second stable butt-joint control seat 19 facing the second end cover 27. The second stable butt-joint control seat 19 is tightly abutted against the second end cover 27 through the elastic buffer.

[0032] In some embodiments, the aforementioned elastic buffer is preferably a spring protection rod 20, such as Figures 3 to 5 shown, the spring protection rod 20 includes an inner fixing rod and a buffer spring sleeved outside the inner fixing rod. One end of the buffer spring and the inner fixing rod is fixed to the second stable butt-joint control seat 19, and the other end of the buffer spring is tightly abutted against the second end cover 27; A plurality of groups of spring protection rods 20 are evenly distributed along the circumference on the end face of the second stable butt-joint control seat 19 facing the second end cover 27. The spring protection rod 20 can play an elastic buffering role and improve the protection performance of the entire GIS.

[0033] In some embodiments, such as Figures 1 to 3 shown, it is preferred that the entire outer shell is a cylindrical outer shell. Correspondingly, the installation inner cavity is a cylindrical inner cavity, and the first stable docking control seat 12, the insulating sleeve seat 14, the electromagnetic coil 15, and the second stable docking control seat 19 are all of cylindrical structures. Between the first half shell 7 and the second half shell 10 of the outer shell, they can be fixedly installed and fixed by the snap-fit of the buckle and the card slot, or can be fixedly penetrated by the connecting bolt 9. In order to ensure the sealing performance of the outer shell, it is preferred that a sealing ring is provided at the edge docking portion of the first half shell 7 and the second half shell 10; after the outer rings of the first half shell 7 and the second half shell 10 are tightened by the connecting bolt 9 in cooperation with the nut, the sealing ring is clamped and compressed, thereby achieving the sealing effect.

[0034] In some embodiments, the above-mentioned first end cover 26 and the second end cover 27 are respectively preferably inserted at both ends of the installation inner cavity, and it is preferred that a sealing ring is provided at the insertion joint to ensure the sealing performance of the installation inner cavity.

[0035] In some embodiments, such as Figure 1 and Figure 2 shown, the outer shell further includes a first communication guide seat 2 and a second communication guide seat 5. Among them, the first communication guide seat 2 can be fixedly arranged on the first end cover 26 by means of bolt connection, clamping connection, welding or integral molding. The outer shell of the first wiring terminal 1 is fixed on the first communication guide seat 2, and the wire at the lower end of the first wiring terminal 1 penetrates through the first communication guide seat 2 and then extends into the interior of the outer shell; the second communication guide seat 5 can be fixedly arranged on the second end cover 27 by means of bolt connection, clamping connection, welding or integral molding. The outer shell of the second wiring terminal 6 is fixed on the second communication guide seat 5, and the wire at the lower end of the second wiring terminal 6 penetrates through the second communication guide seat 5 and then extends into the interior of the outer shell to be electrically connected to the connection coil 21.

[0036] In some embodiments, such as Figure 1 and Figure 2 shown, the outer shell further includes a reinforcing frame 8, and the reinforcing frame 8 is provided on the outer side walls of the first half shell 7 and the second half shell 10. The reinforcing frame 8 is preferably a reinforcing rib frame, and its shape is adapted to the outer wall contours of the first half shell 7 and the second half shell 10, that is, the reinforcing frame 8 is also semi-cylindrical. The reinforcing frame 8 is preferably welded or adhered to the first half shell 7 and the second half shell 10. The reinforcing frame 8 is mainly used to protect the outside of the first half shell 7 and the second half shell 10, and improve the overall structural strength and explosion-proof performance of the outer shell.

[0037] In some embodiments, such as Figures 3 to 5As shown, preferably, one end of the connecting conductive rod 13 is fixedly welded or integrally formed with the first stable docking control seat 12; a jack is provided on the end face of the insulating sleeve seat 14 facing the first stable docking control seat 12, and the other end of the connecting conductive rod 13 is inserted into the jack, so as to realize the plug-in fixation of the connecting conductive rod 13 and the insulating sleeve seat 14. One end of the insulating protection rod 16 is fixedly welded or integrally formed with the insulating sleeve seat 14; a jack is coaxially provided at the other end of the insulating protection rod 16, and the insulating protection rod 16 is fixedly plugged with the docking insulating seat 18 through its jack.

[0038] In some embodiments, a one-way valve 3 communicating with the inside of the housing is further provided on the housing. The one-way valve 3 is used for an external gas source to convey a protective gas into the housing. The protective gas can be SF6 gas (i.e., sulfur hexafluoride gas).

[0039] In some embodiments, an extension platform is provided at the bottom of the housing, and a stable seat 4 is provided on the extension platform. The main body of the one-way valve 3 is supported and installed by the stable seat 4. Specifically: the one-way valve 3 and the stable seat 4 are arranged in a penetrating manner. The one-way valve 3 preferably adopts a one-way control valve, such as a one-way solenoid valve, etc. As Figure 1 and Figure 2 shown, a plurality of one-way valves 3 can be simultaneously provided on the outer side of the housing.

[0040] As described above, in the voltage mutual inductance mechanism 11, the first stable docking control seat 12, the connecting conductive rod 13, the insulating sleeve seat 14, the electromagnetic coil 15, the insulating protection rod 16 and the second stable docking control seat 19 are combined and connected. Preferably, the electromagnetic coil 15 is wound around the outer part of one end of the insulating sleeve seat 14 far from the connecting conductive rod 13. After passing through the insulating sleeve seat 14, the two connecting conductive rods 13 are respectively electrically connected to both ends of the electromagnetic coil 15 to conduct electricity. At the same time, the insulating sleeve seat 14 is fixed to the insulating protection rod 16, and at the same time, the insulating protection rod 16 is inserted and fixed to the docking insulating seat 18 to perform insulation protection work. The second stable docking control seat 19 is electrically connected to the wire at the lower end of the second wiring terminal 6 through a wire, and the second stable docking control seat 19 is electrically connected to the connection coil 21 through a wire. The matching mutual inductance mechanism 17 is composed of a connection coil 21, an iron core 22, a matching bracket 23, an arc-shaped turning frame 24, a spring guide rod 25 and a spring. The connection coil 21 is wound around the first end of the iron core 22, and a spring guide rod 25 is provided at the end of the second end of the iron core 22. The end of the spring guide rod 25 is slidably hinged to the arc-shaped turning frame 24. The arc-shaped turning frame 24 can rotate relative to the iron core 22 around the spring guide rod 25. By releasing the spring on the spring guide rod 25, the arc-shaped turning frame 24 can be fitted with the matching bracket 23 to achieve the purpose of a conducting path. When installing or disassembling the voltage mutual inductance mechanism 11 and the matching mutual inductance mechanism 17, the arc-shaped turning frame 24 is pressed to compress the spring, so that the arc-shaped turning frame 24 can be separated from the matching bracket 23, which is convenient for the installation and disassembly operations of the insulating sleeve seat 14 and the electromagnetic coil 15 on the iron core 22.

[0041] In use, the first half shell 7 and the second half shell 10 are butt - fixed by connecting bolts 9. The voltage mutual - inductance mechanism 11 is installed in the installation inner cavity formed by assembling the first half shell 7 and the second half shell 10. The electromagnetic coil 15 in the voltage mutual - inductance mechanism 11 is electrically connected to the wire at the lower end of the first terminal 1 through the connecting conductive rod 13. The connecting coil 21 is electrically connected to the wire at the lower end of the second terminal 6 through the wire and the second stable butt - joint control seat 19. Thus, under the action of the voltage mutual - inductance mechanism 11, mutual - inductance processing can be carried out. By arranging the reinforcing frame 8 on the outer sides of the first half shell 7 and the second half shell 10, the purpose of enhanced protection can be achieved. The user can introduce SF6 gas into the interior of the shell through the one - way valve 3, thereby filling the inner cavities of the first half shell 7 and the second half shell 10 with gas and enhancing the internal protection work. The current is conducted through the first stable butt - joint control seat 12 and the connecting conductive rod 13 and can be connected to the electromagnetic coil 15. The insulating sleeve seat 14 is used for external protection work. The insulating sleeve seat 14 can be supported through the insulating protection rod 16 and the butt - joint insulating seat 18. The second stable butt - joint control seat 19 is electrically connected to the connecting coil 21 in the matching mutual - inductance mechanism 17 to achieve the purpose of voltage mutual - inductance transmission. The second stable butt - joint control seat 19 can be elastically connected to the end of the shell through the spring protection rod 20 to achieve buffer protection work. The arc - shaped turning frame 24 in the matching mutual - inductance mechanism 17 can be turned or clamped on the spring guide rod 25, so as to facilitate the installation or removal of the electromagnetic coil 15 from the iron core 22. When the insulating sleeve seat 14 and the electromagnetic coil 15 need to be disassembled or installed on the matching mutual - inductance mechanism 17, press and turn the arc - shaped turning frame 24, and the arc - shaped turning frame 24 is separated from the matching clamping frame 23. When the insulating sleeve seat 14 and the electromagnetic coil 15 are inserted in place on the iron core 22, turn and release the arc - shaped turning frame 24 to make the arc - shaped turning frame 24 fit and connect with the matching clamping frame 23, so that the iron core 22 forms a whole (that is, the open end of the iron core 22 is closed, and the whole iron core 22 is in a closed shape), facilitating the subsequent voltage mutual - inductance transmission work.

[0042] By configuring the above - mentioned matching clamping frame 23, arc - shaped turning frame 24, spring guide rod 25 and spring on the iron core 22 of the matching mutual - inductance mechanism 17, it is convenient for equipment installation and subsequent maintenance work. The arc - shaped turning frame 24 in the matching mutual - inductance mechanism 17 turns and opens around the spring guide rod 25, which can facilitate the removal of the matching mutual - inductance mechanism 17 and at the same time facilitate the installation work of the insulating sleeve seat 14 and the electromagnetic coil 15 in the early stage. After the installation is completed, adjust the arc - shaped turning frame 24 to turn and close around the spring guide rod 25 to perform the reset work. The connecting coil 21 is electrically connected to the second terminal 6, and the electromagnetic coil 15 is electrically connected to the first terminal 1, so as to change the voltage through the equipment; through the cooperation of the electromagnetic coil 15, connecting coil 21 and iron core 22, the number of turns of the coil is changed to carry out the voltage transformation work.

[0043] The one-way valve 3 is connected to the first half shell 7 and can introduce SF6 gas into the interior of the housing, thereby providing a protected internal environment, reducing the occurrence of electric arcs, and enhancing the reliability and safety of the GIS.

[0044] The first stable docking control seat 12 is electrically connected to the electromagnetic coil 15 through the connecting conducting rod 13 and can conduct current. Through the action of the internal connecting coil 21 and the iron core 22 in the cooperating mutual inductance mechanism 17, mutual inductance processing is carried out to change the voltage at the output end. Moreover, the side end of the insulating sleeve seat 14 is connected to the docking insulating seat 18 through the insulating protection rod 16, which can play a supporting role. The setting of the spring protection rod 20 can provide buffer protection for the second stable docking control seat 19 and prevent the equipment from being damaged by vibration.

[0045] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions under which the present invention can be implemented. Therefore, they do not have technical essential significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of narration and are not used to limit the scope under which the present invention can be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope under which the present invention can be implemented.

[0046] In the present invention, specific examples are used to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, there will be changes in the specific implementation manner and application scope according to the idea of the present invention. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A GIS, characterized in that: The invention comprises a housing, a first wiring terminal (1), a second wiring terminal (6) and a voltage transformer, wherein the voltage transformer is arranged in the housing, and the voltage transformer comprises a voltage transformer mechanism (11) and a matching transformer mechanism (17), wherein: the voltage transformer mechanism (11) comprises a first stable docking control seat (12), a connecting conductive rod (13), an insulating sleeve seat (14), an electromagnetic coil (15) and a second stable docking control seat (19), wherein the electromagnetic coil (15) is wound around the insulating sleeve seat (14), the first stable docking control seat (12) is located on one side of the insulating sleeve seat (14) and is fixed to the insulating sleeve seat (14) via the connecting conductive rod (13), and the connecting conductive rod (13) is connected to the insulating sleeve seat (14). The conducting rod (13) is electrically connected to the electromagnetic coil (15); the second stable docking control seat (19) is located on the other side of the insulating sleeve (14); a docking insulating seat (18) is provided on the second stable docking control seat (19); the docking insulating seat (18) is fixed to the insulating sleeve (14) via an insulating protection rod (16); the first wiring terminal (1) is provided outside the housing and is electrically connected to the connecting conducting rod (13) via a wire; the matching mutual inductance mechanism (17) comprises a connecting coil (21) and an iron core (22); the first end of the iron core (22) is wound around the connecting coil (21); the second wiring terminal (6) is provided outside the housing and is electrically connected to the connecting coil (21) via a wire; the insulating sleeve (14) and the electromagnetic coil (15) are inserted and sleeved on the outside of the first end of the iron core (22); the first end and the second end of the iron core (22) are connected via a detachable communicating vessel, and the detachable communicating vessel enables the first end and the second end of the iron core (22) to switch between a connected path state and a separated circuit state; the detachable communicating vessel comprises a matching bracket (23), an arc-shaped flip bracket (24), a spring guide rod (25) and a spring, wherein: the matching bracket (23) is provided on the side wall of one of the first end and the second end of the iron core (22), and the spring guide rod (25) is provided on the side wall of the other end; the spring guide rod (25) is provided on the side wall of the other end; The spring is sleeved outside the spring guide rod (25), the first end of the arc-shaped flip frame (24) is slidably hinged to the spring guide rod (25), and the first end of the arc-shaped flip frame (24) is located between the spring and the end of the spring guide rod (25); in the connection path state, the arc-shaped flip frame (24) is pressed by the elastic force of the spring, and the second end of the arc-shaped flip frame (24) is in contact with the matching bracket (23); the arc-shaped flip frame (24) is pressed, the spring is compressed, the second end of the arc-shaped flip frame (24) is separated from the matching bracket (23), and the arc-shaped flip frame (24) is moved to rotate around the spring guide rod (25) to switch to the separation disconnection state.

2. The GIS according to claim 1, characterized in that: The matching bracket (23) is arranged on the side wall of the first end of the iron core (22); and the spring guide rod (25) is arranged on the side wall of the second end of the iron core (22).

3. The GIS according to claim 1 or 2, characterized in that: A group of detachable communicating vessels is respectively arranged on both sides of the first end and the second end of the iron core (22).

4. The GIS according to any one of claims 1 to 2, characterized in that: The housing is a columnar housing, comprising a first half shell (7), a second half shell (10), a first end cover (26) and a second end cover (27); the first half shell (7) and the second half shell (10) are detachably butt-jointed, an installation cavity is formed between the first half shell (7) and the second half shell (10), the first end cover (26) and the second end cover (27) are respectively arranged at two axial ends of the installation cavity, and the voltage transformer is installed in the installation cavity.

5. The GIS according to claim 4, characterized in that: The housing, the first stable docking control seat (12), the insulating sleeve (14), the electromagnetic coil (15) and the second stable docking control seat (19) are coaxially mounted, and the first stable docking control seat (12) is in contact with the first end cover (26), and an elastic buffer is provided on a side of the second stable docking control seat (19) facing the second end cover (27), and the second stable docking control seat (19) is pressed against the second end cover (27) via the elastic buffer.

6. The GIS according to claim 4, characterized in that: The housing further comprises a first connecting guide seat (2) and a second connecting guide seat (5), wherein: the first connecting guide seat (2) is arranged on the first end cover (26), and the first connecting terminal (1) is fixed on the first connecting guide seat (2); the second connecting guide seat (5) is arranged on the second end cover (27), and the second connecting terminal (6) is fixed on the second connecting guide seat (5).

7. The GIS according to claim 4, characterized in that: The outer shell further comprises a reinforcing frame (8), and the outer side walls of the first half shell (7) and the second half shell (10) are both provided with the reinforcing frame (8).

8. The GIS according to any one of claims 1 to 2, characterized in that: The connecting conductive rod (13) is plugged and fixed to the insulating sleeve seat (14); and the insulating protection rod (16) is plugged and fixed to the butting insulating seat (18).

9. The GIS according to any one of claims 1 to 2, characterized in that: The shell is also provided with a one-way valve (3) which is in communication with the interior of the shell, and the one-way valve (3) is used to transport protective gas into the shell.

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