CN114545175B - SF6 gas impulse voltage generator capable of reducing electric field intensity - Google Patents
SF6 gas impulse voltage generator capable of reducing electric field intensity Download PDFInfo
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- CN114545175B CN114545175B CN202210196252.0A CN202210196252A CN114545175B CN 114545175 B CN114545175 B CN 114545175B CN 202210196252 A CN202210196252 A CN 202210196252A CN 114545175 B CN114545175 B CN 114545175B
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- 230000005684 electric field Effects 0.000 title claims abstract description 38
- 230000001105 regulatory effect Effects 0.000 claims abstract description 76
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 19
- 239000011810 insulating material Substances 0.000 claims abstract description 10
- 239000004020 conductor Substances 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 abstract description 6
- 238000012856 packing Methods 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 23
- 229910018503 SF6 Inorganic materials 0.000 description 13
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 13
- 238000010586 diagram Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000013142 basic testing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/14—Circuits therefor, e.g. for generating test voltages, sensing circuits
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Abstract
The utility model provides a can reduce SF6 gas impulse voltage generator of electric field strength, relate to impulse voltage generator technical field, it includes the gasbag, the conductive contact, the pressure regulating connects, the gasbag is bilayer structure, the inside pressure regulating cavity that is equipped with of gasbag, the one end of gasbag is equipped with the pressure regulating interface, the gasbag other end is equipped with the conductive interface, the pressure regulating connects through pressure regulating interface and airbag connection, be equipped with the packing cavity between the skin of inlayer and gasbag, it has mercury to fill the inside packing of cavity, the conductive contact is including connecting body and conducting assembly, the connection body passes through the conductive interface and is connected with the gasbag, conducting assembly locates the connection body, the connection body is made by insulating material, the gasbag has elasticity, conducting assembly one end is connected with the mercury electricity, the conducting assembly other end is suitable for to be connected with the terminal electricity of conductive part. Changing the mercury surface area by adjusting the balloon volume by gas pressure can reduce the electric field strength at the tip of the conductive member.
Description
Technical Field
The application relates to the technical field of impulse voltage generators, in particular to an SF6 gas impulse voltage generator capable of reducing electric field intensity.
Background
High voltage electrical equipment in an electrical power system needs to be subjected to a surge voltage test to verify its insulating properties under overvoltage before being put into operation. The impulse voltage generator is a high voltage generator which generates impulse waves such as lightning impulse voltage waves and operation overvoltage waves and is basic test equipment of a high voltage test chamber, sulfur hexafluoride is inert gas which is commonly used for the impulse voltage generator due to good insulating property and arc extinguishing property, and the impulse voltage generator adopting the inert gas is called as a gas impulse voltage generator.
In order to solve the problem, the SF6 gas impulse voltage generator in the prior art is provided, a grading ring is installed at a charged part where point discharge easily occurs, the grading ring is in a ring with a circular section, and the grading ring has a large surface area and a smooth surface, so that charges at the charged part can be dispersed, and the electric field intensity at the charged part can be reduced.
In summary, the prior art has at least the following technical problems: the surface area of the grading ring cannot be adjusted, and the electric field strength of the charged part cannot be reduced when the electric field strength of the charged part is increased.
Disclosure of Invention
The application provides a SF6 gas impulse voltage generator capable of reducing electric field intensity, which is used for solving the technical problem that the electric field intensity of an electrified part cannot be reduced because the surface area of a grading ring cannot be adjusted in the prior art.
In order to solve the above technical problem, the embodiments of the present application propose the following technical solutions:
an SF6 gas impulse voltage generator capable of reducing electric field intensity comprises an air bag, a conductive connector and a pressure regulating connector, wherein the air bag is of a double-layer structure, a pressure regulating cavity is arranged in the air bag, a pressure regulating interface is arranged at one end of the air bag, a conductive interface is arranged at the other end of the air bag, the pressure regulating connector is connected with the air bag through the pressure regulating interface, the pressure regulating cavity is positioned in an inner layer of the air bag, a filling cavity is arranged between the inner layer and an outer layer of the air bag, mercury is filled in the filling cavity, the conductive connector comprises a connector body and a conductive component, the connector body is connected with the air bag through the conductive interface, the conductive component is arranged on the connector body, the connector body is made of an insulating material, the conductive component is made of a conductive material, the air bag is made of an insulating material, the air bag has elasticity, one end of the conductive component is electrically connected with the mercury, and the other end of the conductive component is suitable for being electrically connected with the tail end of a conductive part of a conductive component of the SF6 gas impulse voltage generator capable of reducing the electric field intensity; the connector body is in sealed fit with the conductive interface, the pressure regulating connector is in sealed fit with the pressure regulating interface, a pressure regulating channel is arranged on the pressure regulating connector, and the pressure regulating channel is communicated with the pressure regulating cavity.
In some embodiments of the present application, a circle of first ring-shaped clamping grooves is formed on the connector body, the first ring-shaped clamping grooves are arranged around the connector body, an edge of the conductive interface is located inside the first ring-shaped clamping grooves, and a surface of the conductive interface is tightly fitted with an inner side surface of the first ring-shaped clamping groove; the connector comprises a connector body and is characterized in that a conductive socket is arranged on the connector body and located outside an air bag, one end of a conductive assembly is located inside a filling cavity, the other end of the conductive assembly is located inside the conductive socket, and the conductive socket is suitable for being used for inserting the tail end of a conductive part.
In some embodiments of the present application, the conductive assembly includes a first conductive rod and a second conductive rod, the first conductive rod and the second conductive rod are made of conductive material, one end of the first conductive rod is located inside the filling cavity, the other end of the first conductive rod is located inside the conductive interface, and the first conductive rod and the airbag are in sealing fit; one end of the second conducting rod is electrically connected with the first conducting rod, the other end of the second conducting rod is positioned in the conductive socket, and the second conducting rod is fixedly connected with the connector body.
In some embodiments of this application, conductive component still includes conductive ring, conductive ring encircles the body setting that connects, conductive ring is located first ring groove's inside, conductive ring's lateral surface with first ring collar's medial surface closely cooperates, conductive ring is made by conducting material, conductive ring's one side with first conducting rod electricity is connected, conductive ring's the another side with second conducting rod electricity is connected.
In some embodiments of the present application, the conductive ring is a hollow thin-walled structure, the conductive ring is filled with gas, the gas pressure inside the conductive ring is greater than atmospheric pressure, the conductive ring is in a compressed state, one surface of the conductive ring is in press fit with the first conductive rod, and the other surface of the conductive ring is in press fit with the second conductive rod.
In some embodiments of the present application, the first conductive rod has a plurality, the first conductive rod is distributed in a circumferential array around a central axis of the conductive interface; the second conducting rods are provided with a plurality of conducting rods, and the second conducting rods are distributed in a circumferential array around the central axis of the conducting interface; the joint body has elasticity, and the medial surface of electrically conductive socket is suitable for closely cooperating with the terminal of electrically conductive portion.
In some embodiments of this application, conductive component still includes the stationary blade, the stationary blade is made by conducting material, the stationary blade encircles the central axis setting of electrically conductive interface, the stationary blade is located the medial surface of electrically conductive interface with between the electrically conductive circle, the one side of stationary blade with the medial surface press fit of electrically conductive interface, the another side of stationary blade with electrically conductive circle press fit, first conducting rod is located the outside of stationary blade, first conducting rod with stationary blade fixed connection, first conducting rod with the stationary blade electricity is connected, the stationary blade is kept away from the one side of first conducting rod with electrically conductive circle electricity is connected.
In some embodiments of the present application, the conductive component further includes a fixing ring, the fixing ring is made of a conductive material, the fixing ring is located inside the conductive socket, the fixing ring is movably connected with the conductive socket, the second conductive rod is fixedly connected with the fixing ring, the second conductive rod is electrically connected with the fixing ring, the fixing ring is suitable for being electrically connected with the tail end of the conductive part, and the central axis of the conductive socket coincides with the central axis of the conductive interface.
In some embodiments of the present application, the airbag is spherical, the central axis of the conductive interface and the central axis of the pressure regulating interface are located on the same straight line, and the central axis of the conductive interface passes through the center of the airbag.
In some embodiments of the present application, a circle of second annular clamping groove is formed in the pressure regulating connector, the second annular clamping groove is disposed around the pressure regulating connector, an edge of the pressure regulating interface is located inside the second annular clamping groove, and an inner side surface of the pressure regulating interface is tightly matched with an inner side surface of the second annular clamping groove; and/or the presence of a gas in the gas,
the pressure regulating connector is provided with a pressure regulating socket, the pressure regulating socket is positioned outside the air bag, the pressure regulating socket is communicated with the pressure regulating channel, and the pressure regulating socket is suitable for inserting the air guide pipe.
The application has the following beneficial effects:
according to the SF6 gas impulse voltage generator capable of reducing the electric field intensity, the conductive connector is connected with the tail end of the conductive part, the tail end of the conductive part is electrically connected with mercury in the filling cavity through the conductive assembly, part of charges at the tail end of the conductive part are distributed to the surface of the mercury, the surface area of the tail end of the conductive part is increased, and the electric field intensity of a space near the unit area of the surface of the conductive part is reduced under the condition that the total charge quantity is unchanged; the volume of the air bag is adjusted by adjusting the air pressure inside the air bag through the pressure adjusting joint, so that the surface area of mercury is adjusted, and the electric field intensity is adjusted; when the electric field intensity at the end of the conductive member needs to be reduced, the gas pressure inside the balloon is increased, the balloon is expanded to increase the volume, the mercury surface area is increased, and the electric field intensity at the end of the conductive member is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of an electric field intensity adjusting device of an SF6 gas surge voltage generator for reducing electric field intensity in an embodiment of the present application;
FIG. 2 is a plan view of an electric field strength adjusting device in the embodiment of the present application;
FIG. 3 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a cross-sectional view of an air bag in an embodiment of the present application;
FIG. 5 is a schematic view showing a connection structure of an electric contact and an airbag in the embodiment of the present application;
FIG. 6 is a schematic view of a connection structure of a first conductive rod and a fixing piece in the embodiment of the present application;
FIG. 7 is a schematic view of a connection structure of a second conductive rod and a fixing ring in the embodiment of the present application;
FIG. 8 is a schematic structural diagram of a conductive interface in an embodiment of the present application;
FIG. 9 is a schematic diagram of a conductive loop;
FIG. 10 is a schematic structural view of the fitting body;
fig. 11 is a schematic view of the structure of the pressure regulating joint.
Reference numerals:
101. an air bag; 102. a conductive joint; 103. a pressure regulating joint; 104. a pressure regulating cavity; 105. a voltage regulating interface; 106. a conductive interface; 107. filling the cavity; 108. a conductive component; 109. an end of the conductive member; 110. a pressure regulating channel; 111. a first ring-shaped card slot; 112. a conductive socket; 113. a first conductive rod; 114. a second conductive rod; 115. a conductive ring; 116. a fixing sheet; 117. a fixing ring; 118. a second annular card slot; 119. a pressure regulating jack; 120. an air duct; 121. a connector body.
Detailed Description
Embodiments of the present application are described in further detail below with reference to the figures and examples, and the terminology used in the description of the embodiments of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application.
In the description of the embodiments of the present application, it should be noted that reference to the description of the terms "above-described embodiment," "some embodiments," "above-described implementation," "some implementations," "possible embodiments" or "possible implementations" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
In the description of the embodiments of the present application, it should be noted that the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
In the description of the embodiment of the present application, it should be noted that "and/or" is only one kind of association relationship that describes an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship. Terms such as "including" and/or "having" may be interpreted as indicating a particular feature, number, operation, component, or combination thereof, but may not be interpreted as excluding the existence of, or the possibility of addition of, one or more other features, numbers, operations, components, or combinations thereof.
In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and be correspondingly changed according to the change of the orientation in which the structure is placed, and thus, should not be construed as limiting the embodiments of the present application. Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or indirectly contacting the second feature through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description of the embodiments of the present application, it should be noted that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. The features defined as "first" and "second" may explicitly or implicitly include one or more of the features. "plurality" means two or more unless otherwise specified.
As shown in fig. 1 to 11, in an embodiment of the present application, there is provided an SF6 gas surge voltage generator capable of reducing an electric field intensity, comprising an electric field intensity adjusting device, the electric field intensity adjusting device comprises an airbag 101, a conductive connector 102, and a pressure regulating connector 103, the airbag 101 is of a double-layer structure, a pressure regulating cavity 104 is provided inside the airbag 101, one end of the airbag 101 is provided with a pressure regulating connector 105, the other end of the airbag 101 is provided with a conductive connector 106, the pressure regulating connector 103 is connected with the airbag 101 through the pressure regulating connector 105, the pressure regulating cavity 104 is located inside an inner layer of the airbag 101, a filling cavity 107 is provided between the inner layer and an outer layer of the airbag 101, the filling cavity 107 is filled with mercury, the conductive connector 102 comprises a connector body 121 and a conductive component 108, the connector body 121 is connected with the airbag 101 through the conductive connector 106, the conductive component 108 is provided on the connector body 121, the connector body 121 is made of an insulating material, the conductive component 108 is made of a conductive material, the airbag 101 is made of an insulating material, the airbag 101 has elasticity, one end of the conductive component 108 is electrically connected with mercury, and the other end of the conductive component 108 is adapted to be electrically connected with an end 109 of a conductive component of an electrically connected with an electrically conductive component of an SF6 gas surge voltage generator capable of reducing an SF6 gas surge voltage generator capable of electrically connected with an electric field intensity; the connector body 121 is in sealing fit with the conductive interface 106, the pressure regulating connector 103 is in sealing fit with the pressure regulating interface 105, the pressure regulating connector 103 is provided with a pressure regulating channel 110, and the pressure regulating channel 110 is communicated with the pressure regulating cavity 104.
According to the SF6 gas impulse voltage generator capable of reducing the electric field intensity, the conductive connector 102 is connected with the tail end 109 of the conductive part, the tail end 109 of the conductive part is electrically connected with mercury filled in the cavity 107 through the conductive assembly 108, part of charges at the tail end of the conductive part are distributed to the surface of the mercury, the surface area of the tail end of the conductive part is increased, and the electric field intensity of a space near the unit area of the surface of the conductive part is reduced under the condition that the total charge quantity is unchanged; the pressure inside the air bag 101 is adjusted through the pressure adjusting joint 103, so that the volume of the air bag 101 is adjusted, the surface area of mercury is adjusted, and the electric field intensity is adjusted; when it is necessary to reduce the electric field intensity at the distal end 109 of the conductive member, the gas pressure inside the balloon 101 is increased, the balloon 101 expands to increase the volume, and the mercury surface area is increased, thereby reducing the electric field intensity at the distal end 109 of the conductive member.
In some embodiments of the present application, a ring of first ring-shaped clamping grooves 111 is disposed on the connector body 121, the first ring-shaped clamping grooves 111 are disposed around the connector body 121, an edge of the conductive interface 106 is located inside the first ring-shaped clamping grooves 111, and a surface of the conductive interface 106 is tightly fitted to an inner side surface of the first ring-shaped clamping grooves 111; the connector body 121 is provided with an electric conduction socket 112, the electric conduction socket 112 is positioned outside the air bag 101, one end of the electric conduction component 108 is positioned inside the filling cavity 107, the other end of the electric conduction component 108 is positioned inside the electric conduction socket 112, and the electric conduction socket 112 is suitable for the tail end 109 of the electric conduction component to be plugged in.
In some embodiments of the present application, the conductive assembly 108 includes a first conductive rod 113 and a second conductive rod 114, the first conductive rod 113 and the second conductive rod 114 are made of a conductive material, one end of the first conductive rod 113 is located inside the filling cavity, the other end of the first conductive rod 113 is located inside the conductive interface 106, and the first conductive rod 113 and the airbag 101 are in sealing fit; one end of the second conductive rod 114 is electrically connected to the first conductive rod 113, the other end of the second conductive rod 114 is located inside the conductive socket 112, and the second conductive rod 114 is fixedly connected to the connector body 121.
Through the above embodiment of the present embodiment, the first conductive rod 113 is embedded inside the airbag 101, the second conductive rod 114 is embedded inside the joint body 121, the first conductive rod 113 and the second conductive rod 114 are in contact with each other in a closed environment wrapped by an insulating material to achieve electrical connection, a protective effect is provided for a contact portion of the first conductive rod 113 and the second conductive rod 114, the end 109 of the conductive member is inserted into the socket, the end 109 of the conductive member and the second conductive rod 114 are in the closed environment wrapped by the insulating material inside the socket, the end 109 of the conductive member is in contact with the second conductive rod 114 to achieve electrical connection, mercury is electrically connected with the end 109 of the conductive member through the first conductive rod 113 and the second conductive rod 114, and charges on the surface of the end 109 of the conductive member are conducted to the surface of mercury through the second conductive rod 114 and the first conductive rod 113, so as to reduce the electric field intensity of the conductive end.
In some embodiments of the present application, the conductive assembly 108 further includes a conductive ring 115, the conductive ring 115 is disposed around the connector body 121, the conductive ring 115 is located inside the first annular clamping groove 111, an outer side surface of the conductive ring 115 is tightly fitted with an inner side surface of the first annular clamping ring, the conductive ring 115 is made of a conductive material, one surface of the conductive ring 115 is electrically connected to the first conductive rod 113, and the other surface of the conductive ring 115 is electrically connected to the second conductive rod 114.
In some embodiments of the present application, the conductive ring 115 is a hollow thin-walled structure, the conductive ring 115 is filled with a gas, the gas pressure inside the conductive ring 115 is greater than the atmospheric pressure, the conductive ring 115 is in a compressed state, one surface of the conductive ring 115 is in a press fit with the first conductive rod 113, and the other surface of the conductive ring 115 is in a press fit with the second conductive rod 114.
Through the above embodiment of the present embodiment, the conductive ring 115 tends to expand under the action of internal air pressure to form an elastic bag, which can ensure the tight fit between the conductive ring 115 and the first conductive rod 113 and the second conductive rod 114.
In some embodiments of the present application, the first conductive rod 113 has a plurality of first conductive rods 113, and the first conductive rods 113 are distributed in a circumferential array around a central axis of the conductive interface 106; the second conductive rods 114 are provided with a plurality of second conductive rods 114, and the second conductive rods 114 are distributed in a circumferential array around the central axis of the conductive interface 106; the contact body 121 has elasticity, and the inner side surface of the conductive socket 112 is adapted to be tightly fitted with the end of the conductive portion.
With the above embodiment of the present embodiment, the end 109 of the conductive member is fixedly connected to the inner wall of the socket by friction force, the end 109 of the conductive member is press-fitted to the second conductive rod 114, and the end 109 of the conductive member is press-fitted to the second conductive rod 114 by the elastic force of the joint body 121.
In some embodiments of the present application, the conductive assembly 108 further includes a fixing plate 116, the fixing plate 116 is made of a conductive material, the fixing plate 116 is disposed around a central axis of the conductive interface 106, the fixing plate 116 is located between an inner side surface of the conductive interface 106 and the conductive ring 115, one surface of the fixing plate 116 is in press fit with the inner side surface of the conductive interface 106, the other surface of the fixing plate 116 is in press fit with the conductive ring 115, the first conductive rod 113 is located outside the fixing plate 116, the first conductive rod 113 is fixedly connected to the fixing plate 116, the first conductive rod 113 is electrically connected to the fixing plate 116, and one surface of the fixing plate 116 away from the first conductive rod 113 is electrically connected to the conductive ring 115.
In some embodiments of the present application, the conductive assembly 108 further includes a fixing ring 117, the fixing ring 117 is made of a conductive material, the fixing ring 117 is located inside the conductive socket 112, the fixing ring 117 is movably connected to the conductive socket 112, the second conductive rod 114 is fixedly connected to the fixing ring 117, the second conductive rod 114 is electrically connected to the fixing ring 117, the fixing ring 117 is adapted to be electrically connected to the end 109 of the conductive component, and a central axis of the conductive socket 112 coincides with a central axis of the conductive interface 106.
In some embodiments of the present application, the airbag 101 has a spherical shape, a central axis of the conductive interface 106 and a central axis of the voltage regulating interface 105 are located on the same straight line, and the central axis of the conductive interface 106 passes through the center of the airbag 101.
In some embodiments of the present application, a circle of second annular clamping grooves 118 is formed on the pressure regulating connector 103, the second annular clamping grooves 118 are disposed around the pressure regulating connector 103, an edge of the pressure regulating interface 105 is located inside the second annular clamping grooves 118, and an inner side surface of the pressure regulating interface 105 is tightly fitted with an inner side surface of the second annular clamping grooves 118; and/or the presence of a gas in the gas,
the pressure regulating connector 103 is provided with a pressure regulating socket 119, the pressure regulating socket 119 is positioned outside the air bag 101, the pressure regulating socket 119 is communicated with the pressure regulating channel 110, and the pressure regulating socket 119 is suitable for the air duct 120 to be inserted.
In the description of the embodiments of the present application, it should be noted that the conductive materials are all made of metal materials, such as copper; the insulating material is plastic or rubber.
The above examples are only for explaining the present application and are not intended to limit the present application, and those skilled in the art can make modifications to the embodiments of the present application without inventive contribution as needed after reading the present specification, but are protected by patent laws within the scope of the claims of the present application.
Claims (10)
1. An SF6 gas impulse voltage generator capable of reducing electric field intensity is characterized by comprising an air bag, a conductive connector and a pressure regulating connector, wherein the air bag is of a double-layer structure, a pressure regulating cavity is arranged in the air bag, a pressure regulating interface is arranged at one end of the air bag, a conductive interface is arranged at the other end of the air bag, the pressure regulating connector is connected with the air bag through the pressure regulating interface, the pressure regulating cavity is positioned in an inner layer of the air bag, a filling cavity is arranged between the inner layer and an outer layer of the air bag, mercury is filled in the filling cavity, the conductive connector comprises a connector body and a conductive assembly, the connector body is connected with the air bag through the conductive interface, the conductive assembly is arranged on the connector body, the connector body is made of an insulating material, the conductive assembly is made of a conductive material, the air bag is made of an insulating material, the air bag has elasticity, one end of the conductive assembly is electrically connected with the mercury, and the other end of the conductive assembly is suitable for being electrically connected with the tail end of a conductive part of the SF6 gas impulse voltage generator capable of reducing electric field intensity; the connector body is in sealed fit with the conductive interface, the pressure regulating connector is in sealed fit with the pressure regulating interface, a pressure regulating channel is arranged on the pressure regulating connector, and the pressure regulating channel is communicated with the pressure regulating cavity.
2. The SF6 gas surge voltage generator for reducing electric field strength of claim 1, wherein a ring of first ring-shaped clamping grooves are formed on the connector body, the first ring-shaped clamping grooves are arranged around the connector body, the edge of the conductive interface is located inside the first ring-shaped clamping grooves, and the surface of the conductive interface is tightly matched with the inner side surface of the first ring-shaped clamping grooves; be equipped with electrically conductive socket on the joint body, electrically conductive socket is located the outside of gasbag, electrically conductive component's one end is located fill the inside of cavity, electrically conductive component's the other end is located electrically conductive socket's inside, electrically conductive socket is suitable for the confession electrically conductive part's end is pegged graft.
3. The SF6 gas impulse voltage generator of claim 2, wherein said conductive assembly comprises a first conductive rod and a second conductive rod, said first conductive rod and said second conductive rod are made of conductive material, one end of said first conductive rod is located inside said filling cavity, the other end of said first conductive rod is located inside said conductive interface, and said first conductive rod and said air bag are in sealing fit; one end of the second conducting rod is electrically connected with the first conducting rod, the other end of the second conducting rod is positioned in the conducting socket, and the second conducting rod is fixedly connected with the connector body.
4. The SF6 gas impulse voltage generator capable of reducing electric field strength of claim 3, wherein said conductive assembly further comprises a conductive ring disposed around said connector body, said conductive ring is disposed inside said first annular clamping groove, an outer side surface of said conductive ring is tightly fitted with an inner side surface of said first annular collar, said conductive ring is made of conductive material, one surface of said conductive ring is electrically connected to said first conductive rod, and another surface of said conductive ring is electrically connected to said second conductive rod.
5. The SF6 gas impulse voltage generator capable of reducing electric field strength of claim 4, wherein said conductive ring is a hollow thin-walled structure, said conductive ring is filled with gas, the gas pressure inside said conductive ring is greater than atmospheric pressure, said conductive ring is in a compressed state, one side of said conductive ring is in press fit with said first conductive rod, and the other side of said conductive ring is in press fit with said second conductive rod.
6. The SF6 gas impulse voltage generator of claim 5, wherein said first conducting rod has a plurality of rods, said first conducting rods are circumferentially arrayed around a central axis of said conductive interface; the second conducting rods are provided with a plurality of conducting rods, and the second conducting rods are distributed in a circumferential array around the central axis of the conducting interface; the joint body has elasticity, and the medial surface of electrically conductive socket is suitable for closely cooperating with the end of electrically conductive portion.
7. The SF6 gas impulse voltage generator capable of reducing electric field intensity of claim 6, wherein said conductive assembly further comprises a fixing plate made of conductive material, said fixing plate is disposed around a central axis of said conductive interface, said fixing plate is disposed between an inner side of said conductive interface and said conductive ring, one side of said fixing plate is press-fitted to the inner side of said conductive interface, another side of said fixing plate is press-fitted to said conductive ring, said first conductive rod is disposed outside of said fixing plate, said first conductive rod is fixedly connected to said fixing plate, said first conductive rod is electrically connected to said fixing plate, one side of said fixing plate away from said first conductive rod is electrically connected to said conductive ring.
8. The SF6 gas impulse voltage generator with reduced electric field strength of claim 7, wherein the conductive assembly further comprises a securing ring made of a conductive material, the securing ring is located inside the conductive socket, the securing ring is movably connected to the conductive socket, the second conductive rod is fixedly connected to the securing ring, the second conductive rod is electrically connected to the securing ring, the securing ring is adapted to be electrically connected to the end of the conductive member, and the central axis of the conductive socket coincides with the central axis of the conductive interface.
9. The SF6 gas impulse voltage generator capable of reducing electric field strength as claimed in claim 1, wherein said airbag is in a sphere shape, a central axis of said conductive interface and a central axis of said voltage regulating interface are located on a same straight line, and the central axis of said conductive interface passes through the center of said airbag.
10. The SF6 gas impulse voltage generator of any of claims 1 to 9, wherein a ring of second annular clamping grooves is formed on the voltage regulation connector, the second annular clamping grooves are arranged around the voltage regulation connector, the edge of the voltage regulation connector is located inside the second annular clamping grooves, and the inner side surface of the voltage regulation connector is tightly matched with the inner side surface of the second annular clamping grooves; and/or the presence of a gas in the gas,
the pressure regulating connector is provided with a pressure regulating socket, the pressure regulating socket is positioned outside the air bag, the pressure regulating socket is communicated with the pressure regulating channel, and the pressure regulating socket is suitable for inserting the air guide pipe.
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Denomination of invention: A SF6 Gas Impulse Voltage Generator that Can Reduce Electric Field Strength Effective date of registration: 20231010 Granted publication date: 20221018 Pledgee: Yangzhou Branch of Bank of Nanjing Co.,Ltd. Pledgor: JIANGSU SHENGHUA ELECTRIC Co.,Ltd. Registration number: Y2023980060579 |