CN112712942A - Insulator assembly and high-voltage switch equipment using same - Google Patents
Insulator assembly and high-voltage switch equipment using same Download PDFInfo
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- CN112712942A CN112712942A CN202011467602.XA CN202011467602A CN112712942A CN 112712942 A CN112712942 A CN 112712942A CN 202011467602 A CN202011467602 A CN 202011467602A CN 112712942 A CN112712942 A CN 112712942A
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- cover plate
- main conductor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/005—Insulators structurally associated with built-in electrical equipment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/38—Fittings, e.g. caps; Fastenings therefor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H9/0271—Bases, casings, or covers structurally combining a switch and an electronic component
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Abstract
The invention belongs to the technical field of high-voltage switches, and particularly relates to an insulator assembly and high-voltage switch equipment using the same, wherein the insulator assembly comprises an insulator and a sensor, the insulator comprises a main conductor, a metal flange and an insulating part, and the peripheral surface of the metal flange is provided with an electrode mounting hole extending into the insulating part; the sensor comprises an electrode which is arranged in the electrode mounting hole in a penetrating way, the electrode is used for inducing a voltage signal of the main conductor, and a wiring part used for connecting the electric display device is arranged on the electrode; the electrode is provided with an inner electrode end facing the main conductor, the inner electrode end can be matched and attached with the bottom of the electrode mounting hole, and the inner electrode end is used for being matched with the main conductor to form a detection capacitor; the insulator assembly also comprises a cover plate and an elastic assembly, wherein the cover plate is fixedly arranged on the metal flange and is used for jacking the pressure electrode towards the direction of the main conductor; the elastic piece is arranged in the electrode and/or between the electrode and the cover plate so as to enable the inner end of the electrode to be pressed against the bottom of the electrode mounting hole.
Description
Technical Field
The invention belongs to the technical field of high-voltage switches, and particularly relates to an insulator assembly and high-voltage switch equipment using the same.
Background
In the prior art, for accurately reflecting the electrification condition of a main loop in high-voltage switch equipment, an electrification detection device is mostly adopted for detection, the high-voltage switch equipment comprises a shell and a central conductor arranged in the shell, adjacent shells are fixedly connected by virtue of an insulator, the central conductor in the adjacent shells is also in conductive communication by virtue of a main conductor in the insulator, the existing electrification detection device for the high-voltage switch equipment is set by virtue of a self-carried structure of the high-voltage switch equipment, and two design structures are mainly adopted.
In the first configuration, as shown in fig. 1, a pull-out opening of a specific size is provided in a housing 102, and is closed by a cover plate 103, and a first seal ring 104 is provided between the cover plate 103 and the housing 102 for sealing. An insulator 109 is fixedly arranged in the cover plate 103 in a penetrating mode, the insulator 109 is in sealing fit with the cover plate 103 through a second sealing ring 108, an electrode 105 of the sensor is fixedly arranged at the inner end of the insulator 109, the outer end of the insulator 109 is connected with an electric display device through a shielded cable 106, and a protective cover 107 is fixedly arranged on the cover plate 103 to protect the insulator 109. A detection capacitor is formed between the electrode 105 and the central conductor 101, and a voltage signal obtained by the electrode 105 is transmitted to the live display device through the shielded cable 106. The first structure has the disadvantages of complicated structure, high cost, poor sealing performance, limited arrangement, and difficulty in miniaturization and compact design of the high-voltage equipment because a pull opening needs to be additionally arranged on the shell 102.
Second structure as shown in fig. 2 and 3, the second live detection device is integrated in a basin insulator 201, the basin insulator 201 comprises a main conductor 202, a metal flange 204 and an insulating part 203, the live detection device comprises an electrode 205, the electrode 205 is integrally cast in the insulating part 203, the outer end is connected with an electric display device through a shielded cable 206, and similarly, a protective cover 207 is covered outside the electrode 205. The second structure has the advantages of compact design, flexible arrangement and few parts, and has the disadvantage that the insulating part 203 and the electrode 205 are easy to peel off due to the difference of the expansion coefficients of the insulating part 203 and the electrode 205 during the cooling shrinkage process.
In order to solve the above problem, chinese utility model patent with the publication number of CN205333783U discloses a partial discharge detection device, including the insulator, the insulator includes main conductor, metal flange and insulating part, has seted up the electrode mounting hole on the outer peripheral face of metal flange, and the electrode mounting hole extends to in the insulating part. The detection device also comprises a sensor, wherein the sensor comprises an electrode penetrating into the electrode mounting hole, and a wiring part is arranged on the electrode and used for wiring so as to connect the electric display device. In the detection device, the electrodes and the insulators are assembled in a split mode, so that various problems which are easy to occur in the process of integral pouring are avoided.
However, the current detection device has some technical problems: the principle that the sensor carries out electrified detection is that formation detection electric capacity between electrode and leading conductor, but detection device among the prior art, except there being the insulating part between electrode and the leading conductor, still have the air, the existence of air can form the clutter electric capacity between electrode and leading conductor, causes the interference to detecting electric capacity, leads to the electrode can't obtain stable induced voltage signal, causes that the testing result is inaccurate or even can't obtain induced voltage signal and appear misjudgement.
Disclosure of Invention
The invention aims to provide an insulator assembly to solve the technical problem that stray wave capacitance exists between an electrode and a main conductor to cause unstable induced voltage signals in the prior art; a high voltage switchgear using the insulator assembly is also provided.
In order to achieve the purpose, the technical scheme of the insulator component provided by the invention is as follows: an insulator assembly comprising:
the insulator comprises a main conductor, a metal flange and an insulating part arranged between the main conductor and the metal flange, wherein the peripheral surface of the metal flange is provided with an electrode mounting hole extending into the insulating part;
the sensor comprises an electrode which is arranged in the electrode mounting hole in a penetrating way, the electrode is used for sensing a voltage signal of the main conductor, and a wiring part used for connecting the electric display device is arranged on the electrode;
the electrode is provided with an inner electrode end facing the main conductor, the inner electrode end can be matched and attached with the bottom of the electrode mounting hole, and the inner electrode end is used for being matched with the main conductor to form a detection capacitor;
the insulator assembly also comprises a cover plate which is fixedly arranged on the metal flange and is used for jacking the electrode towards the direction of the main conductor;
the insulator assembly further comprises an elastic piece, and the elastic piece is arranged in the electrode and/or between the electrode and the cover plate so as to press the inner end of the electrode against the bottom of the electrode mounting hole.
The beneficial effects are that: the elastic piece applies pressure elastic force to the inner end of the electrode, the elastic force enables the inner end of the electrode to be attached to the bottom of the electrode mounting hole, and the gap between the inner end of the electrode and the bottom of the electrode mounting hole is reduced or even eliminated, so that the clutter capacitance formed between the inner end of the electrode and the main conductor is reduced or even eliminated, the stability of an electrode induction voltage signal is improved, and the accuracy of a detection result is improved.
As a further improvement, the electrodes comprise a first electrode and a second electrode which are mutually inserted, the first electrode is provided with an inner end of the electrode, and the second electrode is used for being in press fit with the cover plate;
the elastic piece is elastically pressed between the first electrode and the second electrode.
The beneficial effects are that: the electrode components of a whole that can function independently arranges and arrange the elastic component between first electrode, second electrode, overall structure is simple, can adapt to the electrode mounting hole of the different degree of depth through changing the first electrode of different length moreover, compares the mode of changing whole electrode, and the material of first electrode is less to this cost saving.
As a further improvement, the outer end of the second electrode, which is back to the first electrode, is sleeved with an insulating sleeve in an inner and outer positioning manner, the outer diameter of the insulating sleeve is larger than the outer diameter of the electrode, the insulating sleeve is arranged in the electrode mounting hole in a penetrating manner, and the outer end of the insulating sleeve, which is back to the main conductor, protrudes out of the peripheral surface of the metal flange;
the cover plate is pressed on the insulating sleeve.
The beneficial effects are that: through the insulating sleeve, electrical isolation between the electrode and the metal flange is realized, electrical isolation between the electrode and the cover plate is also realized, and interference on voltage signals is prevented.
As further improvement, sealing rings are arranged between the cover plate and the metal flange and between the electrode and the wall of the electrode mounting hole.
The beneficial effects are that: two sealing rings are sealed together, prevent that moisture, rainwater, condensation etc. from invading between electrode and the insulating part, and then the clutter electric capacity appears, cause the influence to the voltage signal of electrode response.
As a further improvement, the insulator assembly includes a connector for connection to the live display device;
the wiring part is an elastic plug bush, and the joint is provided with a contact pin which is matched and plugged with the elastic plug bush;
or the wiring part is a contact pin, and an elastic plug bush which is matched and plugged with the contact pin is arranged on the connector;
and the cover plate is provided with a thread section connected with the joint thread.
The beneficial effects are that: through the cooperation of contact pin and plug bush, can realize the quick plug of joint and electrode, and the fixed Assembly of apron with the joint has been realized to the screw thread section on the apron, prevents to connect and electrode separation.
The technical scheme of the high-voltage switch equipment is as follows: a high voltage switchgear comprising a housing and a center conductor arranged in the housing;
an insulator assembly comprising:
the insulator comprises a main conductor, a metal flange and an insulating part arranged between the main conductor and the metal flange, wherein the main conductor is connected with the central conductor, the metal flange is fixedly connected with the shell, and the peripheral surface of the metal flange is provided with an electrode mounting hole extending into the insulating part;
the sensor comprises an electrode which is arranged in the electrode mounting hole in a penetrating way, the electrode is used for sensing a voltage signal of the main conductor, and a wiring part used for connecting the electric display device is arranged on the electrode;
the electrode is provided with an inner electrode end facing the main conductor, the inner electrode end can be matched and attached with the bottom of the electrode mounting hole, and the inner electrode end is used for being matched with the main conductor to form a detection capacitor;
the insulator assembly also comprises a cover plate which is fixedly arranged on the metal flange and is used for jacking the electrode towards the direction of the main conductor;
the insulator assembly further comprises an elastic piece, and the elastic piece is arranged in the electrode and/or between the electrode and the cover plate so as to press the inner end of the electrode against the bottom of the electrode mounting hole.
The beneficial effects are that: the elastic piece applies pressure elastic force to the inner end of the electrode, the elastic force enables the inner end of the electrode to be attached to the bottom of the electrode mounting hole, and the gap between the inner end of the electrode and the bottom of the electrode mounting hole is reduced or even eliminated, so that the clutter capacitance formed between the inner end of the electrode and the main conductor is reduced or even eliminated, the stability of an electrode induction voltage signal is improved, and the accuracy of a detection result is improved.
As a further improvement, the electrodes comprise a first electrode and a second electrode which are mutually inserted, the first electrode is provided with an inner end of the electrode, and the second electrode is used for being in press fit with the cover plate;
the elastic piece is elastically pressed between the first electrode and the second electrode.
The beneficial effects are that: the electrode components of a whole that can function independently arranges and arrange the elastic component between first electrode, second electrode, overall structure is simple, can adapt to the electrode mounting hole of the different degree of depth through changing the first electrode of different length moreover, compares the mode of changing whole electrode, and the material of first electrode is less to this cost saving.
As a further improvement, the outer end of the second electrode, which is back to the first electrode, is sleeved with an insulating sleeve in an inner and outer positioning manner, the outer diameter of the insulating sleeve is larger than the outer diameter of the electrode, the insulating sleeve is arranged in the electrode mounting hole in a penetrating manner, and the outer end of the insulating sleeve, which is back to the main conductor, protrudes out of the peripheral surface of the metal flange;
the cover plate is pressed on the insulating sleeve.
The beneficial effects are that: through the insulating sleeve, electrical isolation between the electrode and the metal flange is realized, electrical isolation between the electrode and the cover plate is also realized, and interference on voltage signals is prevented.
As further improvement, sealing rings are arranged between the cover plate and the metal flange and between the electrode and the wall of the electrode mounting hole.
The beneficial effects are that: two sealing rings are sealed together, prevent that moisture, rainwater, condensation etc. from invading between electrode and the insulating part, and then the clutter electric capacity appears, cause the influence to the voltage signal of electrode response.
As a further improvement, the insulator assembly includes a connector for connection to the live display device;
the wiring part is an elastic plug bush, and the joint is provided with a contact pin which is matched and plugged with the elastic plug bush;
or the wiring part is a contact pin, and an elastic plug bush which is matched and plugged with the contact pin is arranged on the connector;
and the cover plate is provided with a thread section connected with the joint thread.
The beneficial effects are that: through the cooperation of contact pin and plug bush, can realize the quick plug of joint and electrode, and the fixed Assembly of apron with the joint has been realized to the screw thread section on the apron, prevents to connect and electrode separation.
Drawings
FIG. 1 is a schematic diagram of a first prior art high voltage live detection apparatus;
FIG. 2 is a schematic diagram of a second prior art high voltage live detection apparatus;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is a schematic view of an insulator assembly embodiment 1 of the present invention;
FIG. 5 is an enlarged view at B in FIG. 4;
FIG. 6 is a partial external view of embodiment 1 of the insulator assembly of the present invention;
description of reference numerals:
101. a center conductor; 102. a housing; 103. a cover plate; 104. a first seal ring; 105. an electrode; 106. a shielded cable; 107. a protective cover; 108. a second seal ring; 109. an insulator;
201. a basin-type insulator; 202. a primary conductor; 203. an insulating section; 204. a metal flange; 205. an electrode; 206. a shielded cable; 207. a protective cover;
301. an insulator; 302. a primary conductor; 303. a metal flange; 304. an insulating section; 305. a first electrode; 306. a spring; 307. a second electrode; 308. a cover plate; 309. an insulating sleeve; 310. a bolt; 311. a first seal ring; 312. a second seal ring; 313. an elastic plug bush; 314. a T-shaped joint; 315. a shielded cable; 316. provided is a charged display device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, elements recited by the phrase "comprising an … …" do not exclude the inclusion of such elements in processes or methods.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
The present invention will be described in further detail with reference to examples.
Specific example 1 of the insulator assembly provided by the present invention:
as shown in fig. 4 to 6, the insulator assembly includes an insulator 301, a sensor, a T-joint 314 and a live display device 316, where the insulator 301 in this embodiment is a basin-type insulator, and includes a main conductor 302 in the middle, a metal flange 303 at the edge, and an insulating part 304 located between the main conductor 302 and the metal flange 303, and the basin-type insulator is formed by integral casting during processing.
An electrode mounting hole is formed in the outer peripheral surface of the metal flange 303, extends in the radial direction of the insulator 301, extends into the insulating portion 304, is used for mounting a sensor, and is spherical in bottom. The electrode mounting hole here comprises two parts, one part being located in the insulating part 304 and the other part being opened in the metal flange 303, wherein the part located in the insulating part 304 is obtained by casting, and the part in the metal flange 303 is machined.
As shown in fig. 5, the sensor is composed of a first electrode 305, a second electrode 307, a spring 306 and an elastic insert 313, wherein the first electrode 305, the second electrode 307 and the spring 306 cooperate to form an electrode, the first electrode 305 and the second electrode 307 both extend along the radial direction of the insulator 301 and are inserted and assembled with each other, and the first electrode 305 and the second electrode 307 can relatively guide and move. A spring 306 is press-fitted between the first electrode 305 and the second electrode 307, where the spring 306 is a compression spring capable of pressing the first electrode 305 toward the elastic force of the main conductor 302. The radially inner end of the first electrode 305 is spherical, has the same size and shape as the bottom of the electrode mounting hole, and can be attached and pressed against the insulating part 304. The radially inner end of the first electrode 305 is also the electrode inner end of the entire electrode. To prevent the electrode from being in conductive communication with the metal flange 303, the outer diameter of the electrode is smaller than the diameter of the electrode mounting hole.
An elastic socket 313 is threadedly mounted on an end portion of the second electrode 307 facing away from the first electrode 305 for insertion and elastic clamping of a pin in the T-shaped connector 314.
As shown in fig. 5, a cover plate 308 is fixedly attached to the outer peripheral surface of the metal flange 303, the cover plate 308 serves to press the electrode in the direction of the main conductor 302, and the cover plate 308 is fixed to the metal flange 303 with bolts 310. In order to prevent the intrusion of moisture, rain and condensation, a second sealing ring 312 is pressed between the cover plate 308 and the metal flange 303.
In order to realize the electrical isolation between the sensor and the metal flange 303 and the electrical isolation between the sensor and the cover plate 308, the radial outer end of the second electrode 307 is designed into a step-shaped structure, the end of the second electrode 307 is sleeved with an insulating sleeve 309, the inner and outer positioning sleeving of the insulating sleeve 309 and the second electrode 307 is realized, the peripheral surface of the insulating sleeve 309 is penetrated in an electrode mounting hole, and meanwhile, the end surface of the radial outer end protrudes out of the metal flange 303 to be in pressing fit with the cover plate 308, so that the compression is realized. In order to further prevent moisture, rainwater, and condensation from entering, a first seal ring 311 is fixedly attached to the outside of the second electrode 307, and the second electrode 307 and the metal flange 303 are sealed.
The T-shaped connector 314 has pins that are inserted into the resilient sleeves 313 to provide conductive communication. One side of the T-shaped connector 314 is connected to an electric display device 316 through a shielded cable 315, and a voltage signal induced by the sensor is transmitted to the electric display device 316 through the T-shaped connector 314 and the shielded cable 315 to display whether the main conductor 302 is charged or not. The other side of the T-connector 314 is connected to an overvoltage protection device to protect the charged display device 316 and the T-connector 314. Also, the cover plate 308 has threaded segments that threadably mate with the tee 314.
In this embodiment, because the spring 306 is disposed between the first electrode 305 and the second electrode 307, the spring 306 can apply a pressure to the first electrode 305 toward the acting force of the main conductor 302, so that the radial inner end of the first electrode 305 can be attached to and pressed against the bottom of the electrode mounting hole, at this time, there is no air or little air between the radial inner end of the first electrode 305 and the bottom of the electrode mounting hole, which can reduce noise capacitance or even avoid noise capacitance, and improve the stability of the induced voltage signal.
In this embodiment, the elastic grommet on the electrode forms a wire connecting portion arranged on the electrode. The spring forms an elastic member for applying elastic force to the conductive inner end, and the spring can be replaced with a member having elasticity such as a rubber block when actually arranged.
Wherein, during actual manufacture, the disc insulator can be used for replacing the basin insulator. Moreover, the electrode mounting hole may be formed in an integrally formed manner.
Specific example 2 of the insulator assembly of the present invention:
in example 1, a pin was provided on the T-shaped contact, and the connection portion of the electrode was an elastic sleeve. In this embodiment, the connection portion of the electrode is a pin, and the T-shaped connector has an elastic sleeve, so that the T-shaped connector is connected with the sleeve of the electrode.
The shape of the joint may be varied in actual design and manufacture.
Or the wiring part on the electrode is a threaded hole formed on the electrode, and the external shielding cable is fixedly arranged on the electrode through a DT joint and a screw.
Specific example 3 of the insulator assembly of the present invention:
in embodiment 1, sealing rings are provided between the cover plate and the metal flange, and between the electrode and the wall of the electrode mounting hole. In this embodiment, only one seal ring may be provided.
Specific example 4 of the insulator assembly of the present invention:
in embodiment 1, the insulating sleeve realizes electrical insulation between the electrode and the cover plate and between the electrode and the wall of the electrode mounting hole, and also realizes the fixed mounting of the cover plate. In this embodiment, the cover plate may adopt the following modes: the cover plate is made of epoxy resin, is integrally poured outside the second electrode, is provided with a bolt through hole, and is assembled by penetrating the bolt through hole and screwing the bolt to the metal flange, so that the cover plate not only realizes the fixation of the electrode, but also ensures the electrical insulation and the sealing property. In this embodiment, the insulating sheath is not provided.
Specific example 5 of the insulator assembly of the present invention:
in embodiment 1, the electrode comprises a first electrode and a second electrode which are separately inserted and sleeved, and the elastic member is arranged between the first electrode and the second electrode. In this embodiment, the electrode is an integrated structure, and the elastic member is disposed between the cover plate and the electrode, and in order to ensure electrical insulation between the electrode and the cover plate, the elastic member is preferably made of an insulating material such as rubber. When the elastic element is a spring, the electric insulation is realized by additionally arranging an insulating plate at least one end of the spring.
In other embodiments, the electrode may be a separate structure, and the elastic member has two positions respectively disposed in the electrode and between the electrode and the cover plate.
Specific example 6 of the insulator assembly of the present invention:
in the embodiment 1, the bottom of the electrode mounting hole is spherical, so that the spherical shape is convenient to process and avoids sharp corners. In this embodiment, the bottom of the electrode mounting hole may be planar.
The specific embodiment of the high-voltage switch equipment of the invention comprises the following steps:
the high-voltage switch equipment of this embodiment is one of high-voltage switch equipment such as GIS, HGIS, PASS, includes the casing and is located the central conductor in the casing, still includes the insulator subassembly of fixing between adjacent casing, and the structure of insulator subassembly is unanimous with each embodiment of above-mentioned insulator subassembly, and the no longer repeated here.
Finally, although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments without departing from the inventive concept, or some of the technical features may be replaced with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An insulator assembly comprising:
the insulator (301) comprises a main conductor (302), a metal flange (303) and an insulating part (304) arranged between the main conductor (302) and the metal flange (303), wherein an electrode mounting hole extending into the insulating part (304) is formed in the outer peripheral surface of the metal flange (303);
the sensor comprises an electrode which is arranged in the electrode mounting hole in a penetrating mode, the electrode is used for sensing a voltage signal of the main conductor (302), and a wiring part used for connecting the electric display device (316) is arranged on the electrode;
the method is characterized in that: the electrode is provided with an electrode inner end facing the main conductor (302), the electrode inner end can be matched and attached with the bottom of the electrode mounting hole, and the electrode inner end is used for being matched with the main conductor (302) to form a detection capacitor;
the insulator component also comprises a cover plate (308), wherein the cover plate (308) is fixedly arranged on the metal flange (303) and is used for pressing the electrode towards the direction of the main conductor (302);
the insulator assembly further includes a spring disposed in the electrode and/or between the electrode and a cover plate (308) to urge the inner end of the electrode against the bottom of the electrode mounting hole.
2. An insulator assembly according to claim 1, wherein: the electrodes comprise a first electrode (305) and a second electrode (307) which are mutually inserted, the first electrode (305) is provided with an inner end of the electrodes, and the second electrode (307) is used for being pressed and matched with the cover plate (308);
the elastic member is elastically pressed between the first electrode (305) and the second electrode (307).
3. An insulator assembly according to claim 2, wherein: an insulating sleeve (309) is sleeved at the outer end of the second electrode (307) back to the first electrode (305) in an inner and outer positioning mode, the outer diameter of the insulating sleeve (309) is larger than that of the electrode, the insulating sleeve (309) penetrates through the electrode mounting hole, and the outer end of the insulating sleeve (309) back to the main conductor (302) protrudes out of the peripheral surface of the metal flange (303);
the cover plate (308) is pressed on the insulating sleeve (309).
4. The insulator assembly of claim 1, 2 or 3, wherein: sealing rings are arranged between the cover plate (308) and the metal flange (303) and between the electrode and the wall of the electrode mounting hole.
5. The insulator assembly of claim 1, 2 or 3, wherein: the insulator assembly includes a connector for connection to a powered display device (316);
the wiring part is an elastic plug bush (313), and the joint is provided with a contact pin which is matched and plugged with the elastic plug bush (313);
or the wiring part is a contact pin, and an elastic plug bush (313) which is matched and plugged with the contact pin is arranged on the connector;
and the cover plate (308) is provided with a thread section connected with the joint thread.
6. A high voltage switchgear comprising a housing and a center conductor arranged in the housing;
an insulator assembly comprising:
the insulator (301) comprises a main conductor (302), a metal flange (303) and an insulating part (304) arranged between the main conductor (302) and the metal flange (303), wherein the main conductor (302) is connected with the central conductor, the metal flange (303) is fixedly connected with the shell, and the outer peripheral surface of the metal flange (303) is provided with an electrode mounting hole extending into the insulating part (304);
the sensor comprises an electrode which is arranged in the electrode mounting hole in a penetrating mode, the electrode is used for sensing a voltage signal of the main conductor (302), and a wiring part used for connecting the electric display device (316) is arranged on the electrode;
the method is characterized in that: the electrode is provided with an electrode inner end facing the main conductor (302), the electrode inner end can be matched and attached with the bottom of the electrode mounting hole, and the electrode inner end is used for being matched with the main conductor (302) to form a detection capacitor;
the insulator component also comprises a cover plate (308), wherein the cover plate (308) is fixedly arranged on the metal flange (303) and is used for pressing the electrode towards the direction of the main conductor (302);
the insulator assembly further includes a spring disposed in the electrode and/or between the electrode and a cover plate (308) to urge the inner end of the electrode against the bottom of the electrode mounting hole.
7. The high voltage switchgear as claimed in claim 6, wherein: the electrodes comprise a first electrode (305) and a second electrode (307) which are mutually inserted, the first electrode (305) is provided with an inner end of the electrodes, and the second electrode (307) is used for being pressed and matched with the cover plate (308);
the elastic member is elastically pressed between the first electrode (305) and the second electrode (307).
8. The high voltage switchgear as claimed in claim 7, wherein: an insulating sleeve (309) is sleeved at the outer end of the second electrode (307) back to the first electrode (305) in an inner and outer positioning mode, the outer diameter of the insulating sleeve (309) is larger than that of the electrode, the insulating sleeve (309) penetrates through the electrode mounting hole, and the outer end of the insulating sleeve (309) back to the main conductor (302) protrudes out of the peripheral surface of the metal flange (303);
the cover plate (308) is pressed on the insulating sleeve (309).
9. High voltage switchgear according to claim 6 or 7 or 8, characterized in that: sealing rings are arranged between the cover plate (308) and the metal flange (303) and between the electrode and the wall of the electrode mounting hole.
10. High voltage switchgear according to claim 6 or 7 or 8, characterized in that: the insulator assembly includes a connector for connection to a powered display device (316);
the wiring part is an elastic plug bush (313), and the joint is provided with a contact pin which is matched and plugged with the elastic plug bush (313);
or the wiring part is a contact pin, and an elastic plug bush (313) which is matched and plugged with the contact pin is arranged on the connector;
and the cover plate (308) is provided with a thread section connected with the joint thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011467602.XA CN112712942B (en) | 2020-12-14 | 2020-12-14 | Insulator assembly and high-voltage switch equipment using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011467602.XA CN112712942B (en) | 2020-12-14 | 2020-12-14 | Insulator assembly and high-voltage switch equipment using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112712942A true CN112712942A (en) | 2021-04-27 |
| CN112712942B CN112712942B (en) | 2022-07-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114465150A (en) * | 2021-12-16 | 2022-05-10 | 河南平高电气股份有限公司 | Three-phase common-box insulator assembly and GIS |
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| CN114465150A (en) * | 2021-12-16 | 2022-05-10 | 河南平高电气股份有限公司 | Three-phase common-box insulator assembly and GIS |
| CN114465150B (en) * | 2021-12-16 | 2024-03-29 | 河南平高电气股份有限公司 | Three-phase common-box insulator assembly and GIS |
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| Publication number | Publication date |
|---|---|
| CN112712942B (en) | 2022-07-05 |
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