gis

Abstract

The invention discloses a GIS (Gas Insulated Switchgear), which relates to the technical field of switch equipment, and is characterized in that an electromagnetic coil of a voltage mutual inductance mechanism is electrically connected with a first wiring terminal, and is matched with a connecting coil of the mutual inductance mechanism to be electrically connected with a second wiring terminal, so that voltage conversion is carried out through the equipment; the detachable communicating vessel is arranged between the ports of the first end and the second end of the iron core matched with the mutual inductance mechanism, so that the first end and the second end of the iron core can be switched between a connection closed-circuit state and a separation open-circuit state, the detachable assembly mode of the iron core and the electromagnetic coil is achieved, rapid disassembly and assembly can be achieved, and the assembly efficiency is improved. And the maintenance is convenient. And the one-way valve is communicated with the first half shell, and SF6 gas can be introduced into the shell, so that an internal protection environment is provided, electric arcs are reduced, and the reliability and safety of the GIS are improved. And the second stable butt joint control seat is elastically mounted on the shell through the elastic buffer piece, and the elastic buffer piece can be used for providing buffer protection to prevent the equipment from being damaged due to vibration.

Description

Technical Field

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

[0002] GIS is a gas insulated switchgear. Voltage transformers are used for voltage conversion in GIS. Voltage transformers are instruments used to convert voltage. The purpose of voltage transformers is mainly to supply power to measuring instruments and relay protection devices, to measure the voltage, power and electric energy of the line, or to protect valuable equipment, motors and transformers in the line when a line fault occurs. Therefore, the capacity of the voltage transformer is very small, generally only a few volt-amperes or tens of volt-amperes, and the maximum does not exceed one thousand volt-amperes.

[0003] Common voltage transformers use electromagnetic induction to adjust voltage changes, thereby achieving the purpose of circuit voltage regulation. However, existing voltage transformers mostly use fixed assembly structures, which are not easy to disassemble, repair and adjust, increasing the maintenance cost and difficulty of GIS. Summary of the invention

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

[0005] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention provides a GIS, comprising a shell, a first terminal, a second terminal and a voltage transformer, wherein the voltage transformer is arranged in the shell, and the voltage transformer comprises a voltage transformer mechanism and a matching transformer mechanism, wherein: the voltage transformer mechanism comprises a first stable docking control seat, a connecting conductive rod, an insulating sleeve, an electromagnetic coil and a second stable docking control seat, the electromagnetic coil is wound on the insulating sleeve, the first stable docking control seat is located on one side of the insulating sleeve, and is fixed to the insulating sleeve through the connecting conductive rod, and the connecting conductive rod is electrically connected to the electromagnetic coil, and the second stable docking control seat is located on the other side of the insulating sleeve The second stable docking control seat is provided with a docking insulating seat, and the docking insulating seat is fixed to the insulating sleeve by an insulating protection rod, and the first terminal is arranged outside the shell and is electrically connected to the connecting conductive rod through a wire; the matching mutual inductance mechanism includes a connecting coil and an iron core, the connecting coil is wound around the first end of the iron core, the second terminal is arranged outside the shell and is electrically connected to the connecting coil through a wire, the insulating sleeve and the electromagnetic coil are inserted into the outside of the first end of the iron core, and the first and second ends of the iron core are connected by a detachable communicating vessel, and the detachable communicating vessel can switch the first and second ends of the iron core between a connected path state and a separated circuit state.

[0006] Preferably, the detachable communicating vessel comprises a matching bracket, an arc-shaped flip bracket, a spring guide rod and a spring, wherein: the matching bracket is arranged on the end side wall of one of the first end and the second end of the iron core, and the spring guide rod is arranged on the end side wall of the other end, the spring is sleeved outside the spring guide rod, the first end of the arc-shaped flip bracket is slidingly hinged with the spring guide rod, and the first end of the arc-shaped flip bracket is located between the ends of the spring and the spring guide rod; in the connecting passage state, the arc-shaped flip bracket is pressed by the elastic force of the spring, and the second end of the arc-shaped flip bracket is fitted with the matching bracket; the arc-shaped flip bracket is pressed, the spring is compressed, the second end of the arc-shaped flip bracket is separated from the matching bracket, and the arc-shaped flip bracket is moved to rotate around the spring guide rod to switch to the separated circuit breaking state.

[0007] Preferably, the matching bracket is arranged on the side wall of the first end of the iron core; and the spring guide rod is arranged on the side wall of the second end of the iron core.

[0008] Preferably, a group of the detachable communicating vessels is respectively arranged on both sides of the first end and the second end of the iron core.

[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 connected to each other. An installation 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 the axial ends of the installation cavity. The voltage transformer is installed in the installation cavity.

[0010] Preferably, the outer shell, the first stable docking control seat, the insulating sleeve, 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, and an elastic buffer is provided on the side of the second stable docking control seat facing the second end cover, and the second stable docking control seat is tightened against the second end cover through the elastic buffer.

[0011] Preferably, the housing further comprises a first connecting guide seat and a second connecting guide seat, wherein: the first connecting guide seat is arranged on the first end cover, and the first connecting terminal is fixed on the first connecting guide seat; the second connecting guide seat is arranged on the second end cover, and the second connecting terminal is fixed on the second connecting guide seat.

[0012] Preferably, the outer shell further comprises a reinforcing frame, and the outer side walls of the first half shell and the second half shell are both provided with the reinforcing frame.

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

[0014] Preferably, the shell is further provided with a one-way valve communicating with the interior of the shell, and the one-way valve is used to transport protective gas into the shell.

[0015] Compared with the prior art, the present invention has achieved the following technical effects: the GIS proposed in the present invention has a reasonable structural design, the connecting coil is electrically connected to the second terminal, and the electromagnetic coil is electrically connected to the first terminal, so that the voltage is converted through the device; wherein, by arranging a detachable communicating vessel 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 circuit-breaking state, thereby realizing a detachable assembly mode of the iron core and the electromagnetic coil, which can not only realize quick disassembly and assembly, but also facilitate maintenance.

[0016] In some technical solutions disclosed in the present invention, the detachable communicating vessel adopts a combination of a matching card frame, an arc-shaped flip frame, a spring guide rod and a spring. The arc-shaped flip frame can be rotated and adjusted around the spring guide rod and slidably adjusted relative to the spring guide rod, thereby facilitating the disassembly and assembly of the matching mutual inductance mechanism and the voltage mutual inductance mechanism, and is simple to operate and easy to repair and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

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

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

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

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

[0022] Figure 5 The figure is a schematic diagram of the split structure of the voltage transformer in the GIS disclosed in the embodiment of the present invention.

[0023] Figure 6 The present invention is a schematic diagram of the structure of a matching mutual inductance mechanism in a voltage transformer disclosed in an embodiment of the present invention.

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

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] The purpose of the present invention is to provide a new type of GIS, in which the iron core and the electromagnetic coil in the voltage transformer are assembled in a detachable manner, which can achieve rapid disassembly and assembly and convenient maintenance, so as to solve the problem of inconvenient maintenance in the prior art.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] like Figure 1 to Figure 6 As shown, this embodiment provides a GIS 100, which includes a housing, a first wiring terminal 1, a second wiring terminal 6 and a voltage transformer. The voltage transformer is arranged in the housing. The voltage transformer includes a voltage transformer mechanism 11 and a matching transformer mechanism 17, wherein: the voltage transformer 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 on 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 connected to the insulating sleeve seat 19 through the connecting conductive rod 13. The sleeve 14 is fixed, and the connecting conductive rod 13 is electrically connected to the electromagnetic coil 15. Generally, two connecting conductive rods 13 are provided, and the two ends of the electromagnetic coil 15 are electrically connected to the two connecting conductive rods 13 respectively; the second stable docking control seat 19 is located on the other side of the insulating sleeve 14, and a docking insulating seat 18 is provided on the end face of the second stable docking control seat 19 facing the insulating sleeve 14. The docking insulating seat 18 is fixed to the insulating sleeve 14 through an insulating protection rod 16, and the first terminal 1 is provided outside the shell and is electrically connected to the connecting conductive rod 13 through a wire. The matching mutual inductance 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 and arranged on the first end of the iron core 22, the second terminal 6 is arranged outside the shell, and is electrically connected to the connecting coil 21 through a wire, the insulating sleeve 14 and the electromagnetic coil 15 are inserted into the outside of the first end of the iron core 22, and the ports of the first end and the second end of the iron core 22 are connected by a detachable connecting tube, and the detachable connecting tube can switch the first end and the second end of the iron core 22 between a connected path state and a separated 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, Figure 5 and Figure 6 As shown, preferably, a group of the aforementioned detachable communicating vessels are respectively arranged on both sides of the first end and the second end of the iron core 22, and the two groups of detachable communicating vessels are symmetrically arranged. As a preferred solution, the two groups of detachable communicating vessels 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 the two ends of the spring guide rod 25 are respectively extended to a length for the installation of the two groups of arc-shaped flip frames 24; a limit baffle 251 is respectively arranged at both ends of the spring guide rod 25, and the structures and installation methods of the two groups of arc-shaped flip frames 24 are the same, and each group of arc-shaped flip frames 24 is respectively equipped 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 and disconnection state, both groups of detachable communicating vessels need to perform corresponding opening and closing operations. It should be noted that when the detachable communicating vessels need to be switched between the connection path state and the separation and disconnection state, the GIS should be powered off to ensure the safety of the operation.

[0031] In some embodiments, Figure 1 and Figure 2 As shown, the aforementioned housing is mainly used for external protection of the voltage transformer. The housing is preferably a cylindrical housing, 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 connected and installed, and a cylindrical installation cavity coaxial with the housing 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 the axial ends of the installation cavity to ensure the sealing of the installation cavity. The voltage transformer is installed in the installation cavity, and the installation cavity of the shell, 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 preferably coaxially installed, and the outer peripheral contour of the entire voltage transformer is adapted to the inner contour of the installation cavity to prevent the voltage transformer from shaking after installation; and the first stable docking control seat 12 is in contact with the first end cover 26, and the second stable docking control seat 19 is provided with an elastic buffer on the side facing the second end cover 27, and the second stable docking control seat 19 is tightened to the second end cover 27 through the elastic buffer.

[0032] In some embodiments, the elastic buffer is preferably a spring protection rod 20, such as Figure 3~Figure 5 As shown, the spring protection rod 20 includes an inner fixing rod and a buffer spring sleeved on the outside of the inner fixing rod, one end of the buffer spring and the inner fixing rod is fixed to the second stable docking control seat 19, and the other end of the buffer spring is pressed against the second end cover 27; a plurality of groups of spring protection rods 20 are evenly distributed along the circumference on the end surface of the second stable docking control seat 19 facing the second end cover 27, and the spring protection rods 20 can play an elastic buffering role to improve the protection performance of the entire GIS.

[0033] In some embodiments, Figure 1~Figure 3 As shown, the entire housing is preferably a cylindrical housing, and 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 cylindrical structures. The first half shell 7 and the second half shell 10 of the housing can be fixed by buckles, grooves and concave-convex adapters, or can be fixed by connecting bolts 9. In order to ensure the sealing of the housing, it is preferred that a sealing ring is provided at the edge 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 fastened by connecting bolts 9 and nuts, the sealing ring is clamped and compressed, thereby achieving a sealing effect.

[0034] In some embodiments, the first end cap 26 and the second end cap 27 are preferably inserted at both ends of the installation cavity, respectively, and a sealing ring is preferably provided at the joint to ensure the sealing of the installation cavity.

[0035] In some embodiments, Figure 1 and Figure 2 As shown, the shell also includes a first connecting guide seat 2 and a second connecting guide seat 5, wherein the first connecting guide seat 2 can be fixedly arranged on the first end cover 26 by means of bolt connection, clamping, welding or integral molding, the shell of the first connecting terminal 1 is fixed on the first connecting guide seat 2, and the wire at the lower end of the first connecting terminal 1 passes through the first connecting guide seat 2 and then extends into the interior of the shell; the second connecting guide seat 5 can be fixedly arranged on the second end cover 27 by means of bolt connection, clamping, welding or integral molding, the shell of the second connecting terminal 6 is fixed on the second connecting guide seat 5, and the wire at the lower end of the second connecting terminal 6 passes through the second connecting guide seat 5 and then extends into the interior of the shell to be electrically connected to the connecting coil 21.

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

[0037] In some embodiments, Figure 3~Figure 5As shown, one end of the connecting conductive rod 13 is preferably welded and fixed to the first stable docking control seat 12 or formed integrally; the end surface of the insulating sleeve 14 facing the first stable docking control seat 12 is provided with a plug hole, and the other end of the connecting conductive rod 13 is inserted into the plug hole, so as to achieve plug-in fixation of the connecting conductive rod 13 and the insulating sleeve 14. One end of the insulating protection rod 16 is welded and fixed to the insulating sleeve 14 or formed integrally; the other end of the insulating protection rod 16 is coaxially provided with a plug hole, and the insulating protection rod 16 is plug-in fixed to the docking insulating seat 18 through its plug hole.

[0038] In some embodiments, the housing is further provided with a one-way valve 3 connected to the interior of the housing, and the one-way valve 3 is used to connect to an external gas source and to deliver a protective gas into the housing. The protective gas may 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 stabilizing seat 4 is provided on the extension platform, and the stabilizing seat 4 supports and installs the main body of the one-way valve 3. Specifically, the one-way valve 3 is connected to the stabilizing seat 4. The one-way valve 3 is preferably a one-way control valve, such as a one-way solenoid valve. Figure 1 and Figure 2 As shown, multiple one-way valves 3 can be arranged simultaneously on the outside of the housing.

[0040] As can be seen from the above, the voltage mutual inductance mechanism 11 is connected in combination through the first stable docking control seat 12, the connecting conductive rod 13, the insulating sleeve 14, the electromagnetic coil 15, the insulating protection rod 16 and the second stable docking control seat 19, wherein the electromagnetic coil 15 is preferably wound around the outside of the end of the insulating sleeve 14 away from the connecting conductive rod 13, and the two connecting conductive rods 13 are respectively electrically connected to the two ends of the electromagnetic coil 15 after passing through the insulating sleeve 14 to perform conductive work. At the same time, the insulating sleeve 14 is fixed to the insulating protection rod 16, and the insulating protection rod 16 is plugged and fixed to the docking insulating seat 18 to perform insulation protection work, and 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 connecting coil 21 through a wire. The matching mutual inductance mechanism 17 is composed of a connecting coil 21, an iron core 22, a matching bracket 23, an arc-shaped flip frame 24, a spring guide rod 25 and a spring combination. The first end of the iron core 22 is wound with a connecting coil 21, and the second end of the iron core 22 is provided with a spring guide rod 25. The end of the spring guide rod 25 is slidably hinged with an arc-shaped flip frame 24. The arc-shaped flip 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 flip frame 24 can be fitted with the matching bracket 23 to achieve the purpose of the passage. When the voltage mutual inductance mechanism 11 and the matching mutual inductance mechanism 17 are installed or disassembled, the arc-shaped flip frame 24 is pressed to compress the spring, so that the arc-shaped flip frame 24 can be separated from the matching bracket 23, which facilitates the installation and disassembly operations of the insulating sleeve 14 and the electromagnetic coil 15 on the iron core 22.

[0041] When in use, the first half shell 7 and the second half shell 10 are docked and fixed by connecting bolts 9, and the voltage mutual inductance mechanism 11 is installed in the installation 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, and 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 docking control seat 19, so that mutual inductance processing can be performed under the action of the voltage mutual inductance mechanism 11. The outer side of the first half shell 7 and the second half shell 10 can achieve the purpose of enhanced protection by setting a reinforcement frame 8. The user can introduce SF6 gas into the shell through the one-way valve 3, so as to fill the inner cavity of the first half shell 7 and the second half shell 10 with gas to enhance the internal protection work. The current is conducted through the first stable docking control seat 12 and the connecting conductive rod 13, and can be connected to the electromagnetic coil 15. The insulating sleeve 14 is used for external protection. The insulating sleeve 14 can be supported by the insulating protection rod 16 and the docking insulating seat 18. The second stable docking 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 docking control seat 19 can be elastically connected to the end of the shell through the spring protection rod 20 to achieve buffer protection. The arc-shaped flip frame 24 in the matching mutual inductance mechanism 17 can be flipped or clamped on the spring guide rod 25, thereby facilitating the installation or removal of the electromagnetic coil 15 from the iron core 22. When the insulating sleeve 14 and the electromagnetic coil 15 need to be disassembled or installed on the matching mutual inductance mechanism 17, press and flip the arc-shaped flip frame 24, and the arc-shaped flip frame 24 is separated from the matching clamping frame 23. When the insulating sleeve 14 and the electromagnetic coil 15 are inserted into place on the iron core 22, flip and release the arc-shaped flip frame 24, so that the arc-shaped flip frame 24 and the matching clamping frame 23 are fitted and connected, so that the iron core 22 is formed as a whole (that is, the open end of the iron core 22 is closed, and the iron core 22 is in a closed shape as a whole), which is convenient for the subsequent voltage mutual inductance transmission work.

[0042] By configuring the above-mentioned matching bracket 23, arc-shaped flip bracket 24, spring guide rod 25 and spring on the iron core 22 of the matching mutual inductance mechanism 17, it is convenient to install the equipment and subsequent maintenance work. The arc-shaped flip bracket 24 in the matching mutual inductance mechanism 17 is flipped open around the spring guide rod 25, which can facilitate the removal of the matching mutual inductance mechanism 17 and facilitate the installation of the insulating sleeve 14 and the electromagnetic coil 15 in the early stage. After the installation is completed, the arc-shaped flip bracket 24 is adjusted to flip 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 that the voltage is transformed through the equipment; through the cooperation of the electromagnetic coil 15, the connecting coil 21, and the iron core 22, the number of turns of the coil is changed, so as to perform the voltage transformation processing work.

[0043] The one-way valve 3 is in communication with the first half shell 7, and can introduce SF6 gas into the interior of the shell, thereby providing an internal protective environment, reducing the occurrence of arcs, and improving 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 conductive rod 13, and can introduce current, and through the action of the connecting coil 21 and the iron core 22 in the matching mutual inductance mechanism 17, mutual inductance processing is performed to change the voltage at the output end, and 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 to prevent the equipment from being damaged by vibration.

[0045] It should be noted that the structures, proportions, sizes, etc. drawn in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0046] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting 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 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 (14), an electromagnetic coil (15) and a second stable docking control seat (19), wherein the electromagnetic coil (15) is wound around the insulating sleeve (14), the first stable docking control seat (12) is located on one side of the insulating sleeve (14) and is fixed to the insulating sleeve (14) via the connecting conductive rod (13), and the connecting conductive 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), and the second stable docking control seat (19) is connected to the insulating sleeve (14). 19) is provided with a docking insulating seat (18), the docking insulating seat (18) is fixed to the insulating sleeve (14) through an insulating protection rod (16), the first wiring terminal (1) is arranged outside the shell, and is electrically connected to the connecting conductive rod (13) through 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 arranged outside the shell, and is electrically connected to the connecting coil (21) through a wire, the insulating sleeve (14) and the electromagnetic coil (15) are inserted outside the first end of the iron core (22), and the first end and the second end of the iron core (22) are connected by a detachable connecting vessel, and the detachable connecting vessel can switch the first end and the second end of the iron core (22) between a connected path state and a separated circuit state.

2. The GIS according to claim 1, characterized in that: 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 arranged 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 arranged 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 bracket (24) is slidably hinged to the spring guide rod (25), and the first end of the arc-shaped flip bracket (24) is located at the The arc-shaped flip frame (24) is pressed against the spring by the elastic force of the spring, and the second end of the arc-shaped flip frame (24) is fitted 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 separated circuit state.

3. The GIS according to claim 2, 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).

4. The GIS according to claim 2 or 3, 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).

5. The GIS according to any one of claims 1 to 3, 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.

6. The GIS according to claim 5, 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.

7. The GIS according to claim 5, 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).

8. The GIS according to claim 5, 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).

9. The GIS according to any one of claims 1 to 3, 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).

10. The GIS according to any one of claims 1 to 3, 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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