CN112909880B - Fixed outer series gap multi-chamber gap lightning arrester capable of being replaced in electrified mode - Google Patents
Fixed outer series gap multi-chamber gap lightning arrester capable of being replaced in electrified mode Download PDFInfo
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- CN112909880B CN112909880B CN202110066899.7A CN202110066899A CN112909880B CN 112909880 B CN112909880 B CN 112909880B CN 202110066899 A CN202110066899 A CN 202110066899A CN 112909880 B CN112909880 B CN 112909880B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/02—Details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/16—Overvoltage arresters using spark gaps having a plurality of gaps arranged in series
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
- H02G13/80—Discharge by conduction or dissipation, e.g. rods, arresters, spark gaps
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
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Abstract
The invention relates to a fixed external series gap multi-chamber gap lightning arrester capable of being replaced in an electrified way, which comprises an installation hardware fitting, a multi-chamber gap lightning arrester component, a column type insulating support and a base fixing clamp, wherein the installation hardware fitting is fixed on a cross arm of a line tower, the low-voltage end of the column type insulating support is fixed on an installation plane of the installation hardware fitting, the base fixing clamp is fixed on the installation plane of the installation hardware fitting, and the bottom of the multi-chamber gap lightning arrester component is connected with the base fixing clamp in a hanging mode through a bottom plate. The multi-chamber gap lightning arrester body can be quickly pulled down through an insulating operating rod with a hook commonly used in an electric power system, and the purpose of detachment is achieved. Simultaneously, the quick leading-in guide way of device can be realized through picking and hanging hole operation on the installation bottom plate at the bottom of the multi-chamber gap lightning arrester assembly, and fixed installation is realized by combining a middle-end fixing clamp on the column type insulating support. The technical difficulty of operators is reduced, and the live replacement operation efficiency is improved.
Description
Technical Field
The invention relates to the technical field of overvoltage protection of power system transmission and distribution lines, in particular to a fixed external series gap multi-chamber gap lightning arrester capable of being replaced in a live-line mode.
Background
In recent years, the application of a multi-chamber gap line arrester has been popularized, and a new arrester using air as an insulating medium is favored by an electric power system operation and maintenance unit due to its excellent characteristics of simple material, large through-flow capacity, no heat accumulation effect, no need of operation and maintenance, and long service life.
The pure air gap multi-chamber gap lightning arrester without the insulating support member is more applied in the current market, and the distance of the pure air gap exceeds the control technical requirement range due to wind deflection, conductor galloping, hardware fatigue and other reasons because the control requirement of the gap distance is higher. When the offset distance is too large, the lightning stroke action voltage value of the lightning arrester is raised, and the circuit insulation level can not be effectively protected; when the deviation is too small, the lightning stroke action voltage value of the lightning arrester is reduced, and even under the voltage of a rated power frequency network, the lightning arrester also can malfunction to cause line faults.
The pure air gap without the insulating support requires field construction personnel to be equipped with a measuring tool, and the measurement is adjusted through the mutual matching among field wires, insulator types and mounting hardware fittings. The control process of the gap distance is complex, the operation difficulty of constructors is increased, and the installation and construction efficiency and quality are reduced. Meanwhile, by combining the on-site technical requirements of operation and maintenance personnel, when the multi-chamber gap arrester fails, the multi-chamber gap arrester needs to be maintained or replaced by power failure, and the construction period is long. The method aims at the problem that the current uninterrupted operation and maintenance requirements are increasingly strong, and hot-line work needs to be realized. The maintenance and replacement operation requirements without power failure are realized.
Chinese patent No. CN202020003988 discloses a fixed-gap multi-chamber gap arrester capable of being replaced with electricity, "in the fixed-gap multi-chamber gap arrester assembly, an upper cross arm fixes a high-voltage end insulator as a line fixing high-voltage discharge point, and the upper cross arm fixes a high-voltage end insulator as a primary equipment fixing input, and a lower cross arm installs the multi-chamber gap arrester as a component for line operation and maintenance". In practical application, "only need to keep apart the air gap through the insulation board and can realize that the multi-chamber gap arrester is effectively kept apart, fortune dimension personnel can detect or change work, realized the fortune dimension mode of not having a power failure". The high voltage is isolated in a limited gap distance space through an insulation isolation mode, and a mode of personnel operation is realized. The mode increases the high-voltage electric shock risk of operators, improves the complexity of personnel operation, and is not beneficial to large-area popularization and application.
Chinese patent CN206992479U discloses a multi-chamber series gap lightning arrester. The lightning arrester comprises a grounding plate, a supporting insulator, a wire clamp, a connecting flexible wire, an upper electrode plate and a lightning arrester element. The invention discloses an external series gap mode realized by a supporting insulator mode, but the patent focuses on disclosing the arc extinguish chamber distance, the shed material, the discharge gap distance and the like, and a lightning arrester and a parallel insulator are fixed into a whole, so that the aim of live replacement is difficult to realize.
Disclosure of Invention
The invention aims to provide a fixed external series gap multi-chamber gap lightning arrester which is convenient to assemble and disassemble and can be replaced in an electrified way.
In order to achieve the purpose, the fixed external series gap multi-chamber gap arrester capable of being replaced in an electrified mode comprises an installation hardware fitting, a multi-chamber gap arrester assembly, a column type insulating support and a base fixing clamp, wherein the installation hardware fitting is fixed on a cross arm of a line tower, the low-voltage end of the column type insulating support is fixed on an installation plane of the installation hardware fitting, the base fixing clamp is fixed on the installation plane of the installation hardware fitting, and the bottom of the multi-chamber gap arrester assembly is connected with the base fixing clamp in an articulated mode through a bottom plate.
Furthermore, two hanging lugs are respectively arranged on two side edges of the bottom plate, the two hanging lugs are symmetrically arranged, and hanging picking holes are formed in the bottom surface of the bottom plate;
the base fixing clamp comprises a mounting box, a first U-shaped elastic sheet arranged inside the mounting box, a conducting ring arranged inside the first U-shaped elastic sheet and a clamping lock, the conducting ring and the first U-shaped elastic sheet are coaxially arranged and fixedly mounted at the top of the mounting box, and the conducting ring is clamped at the bottom of the multi-chamber gap lightning arrester assembly; the mounting box is characterized in that two side plates of the mounting box are respectively provided with an L-shaped guide hole, the opening direction of a transverse guide hole of the L-shaped guide hole is consistent with the front opening direction of the mounting box and is communicated with the outside, a vertical guide hole of the L-shaped guide hole is upwards guided along the side plates, and a hanging lug of the bottom plate is inserted into the L-shaped guide hole.
Furthermore, the bottoms of the rear parts of the two side plates of the mounting box are respectively provided with a through hole, one end of the lock is clamped in the through hole of one side plate of the mounting box, the other end of the lock is clamped in the through hole of the other side plate of the mounting box, and the lock rotates by taking the circle center connecting line of the two through holes as an axis; the bottom of the front end faces of the two side plates of the mounting box is horizontally provided with a locking baffle outward, the outer end faces of the locking baffle are respectively provided with a groove for clamping the clamping lock, and the top face of the locking baffle is flush with the bottom face of the transverse guide hole.
Further, the middle part of column type insulating support is provided with the tighrening ring, and the one end round pin post of fixed pin is connected with the tighrening ring, and the screw on the mounting panel of the fixed pin other end is connected with middle-end fixation clamp with the fastener, and middle-end fixation clamp joint is at the middle part of multicavity room clearance arrester subassembly.
Further, the middle-end fixation clamp comprises a second U-shaped elastic sheet and a clamp spring arranged inside the second U-shaped elastic sheet, the screw hole in the fixing pin mounting plate is locked with the clamp spring and the second U-shaped elastic sheet through a fastener, and the clamp spring is clamped in the middle of the multi-chamber gap lightning arrester assembly.
Furthermore, the column type insulating support is sleeved with a climbing-increasing insulating support, the climbing-increasing insulating support is of a composite-coat insulator structure with a climbing-increasing umbrella skirt, and the creepage specific distance along the surface is larger than 31 mm/kV.
Furthermore, a high-voltage discharge electrode is fixed at the top end of the column-type insulating support, and an air gap is formed between the high-voltage discharge electrode and a top electrode of the multi-chamber gap lightning arrester assembly; one end of the high-voltage lead is connected with the high-voltage discharge electrode in an equipotential mode through a fastener, and the other end of the high-voltage lead is connected with the overhead line conducting wire in an equipotential mode through an equipotential connector.
Furthermore, the clamp spring is made of spring steel, and the second U-shaped elastic sheet is made of spring steel.
Furthermore, the kayser is for having elastic metal material, and the conducting ring is the good brass of electric conductive property or red copper material, and first U type shell fragment is the spring steel material.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, the high-voltage lead is connected to the determined fixed point in an equipotential manner, and a fixed gap structure is realized with the multi-chamber gap lightning arrester discharge electrode, so that the mounting operation construction difficulty is reduced, the construction efficiency is improved, and the construction quality is ensured. The fixed gap structure is a rod-rod structure, so that the stability of the lightning impulse action value of the device is ensured.
2. According to the invention, the multi-chamber gap lightning arrester body can be quickly pulled down through the common insulating operating rod with the hook for the power system, so that the aim of disassembly is fulfilled. Meanwhile, the device can be quickly guided into the guide groove by the aid of hanging hole removing operation on the bottom mounting base plate of the multi-chamber gap lightning arrester assembly, and fixed mounting is achieved by the aid of a middle-end fixing clamp on the column type insulating support. The technical difficulty of operators is reduced, and the live replacement work efficiency is improved.
3. The electrified replacing structure is used as primary equipment and is fixedly input, only the faulty multi-cavity gap body needs to be replaced in subsequent operation and maintenance, and the economical efficiency and the practicability of the whole structure in engineering application are fully considered.
Drawings
FIG. 1 is a schematic structural view of a fixed external series gap multi-chamber gap arrester capable of being replaced with electricity according to the present invention;
FIG. 2 is a schematic view of the installation of the baseplate and multi-chamber gap arrestor assembly of FIG. 1;
FIG. 3 is a schematic view of the pillar type insulating support of FIG. 1;
FIG. 4 is a schematic view of the retainer pin of FIG. 1;
FIG. 5 is a schematic view of a base retaining clip of FIG. 1;
FIG. 6 is a schematic view of the mounting box of FIG. 5;
fig. 7 is a schematic view of the middle fixing clip shown in fig. 1.
The components in the figures are numbered as follows:
the multi-chamber gap lightning arrester comprises a multi-chamber gap lightning arrester assembly 1, a column type insulating support 2, a base fixing clamp 3 (wherein: a lock 31, a mounting box 32, a through hole 321, an L-shaped guide hole 322, a locking baffle 323, a groove 324, a transverse guide hole 325, a vertical guide hole 326, a first U-shaped elastic sheet 33 and a conducting ring 34), a middle end fixing clamp 4 (wherein: a second U-shaped elastic sheet 41 and a clamp spring 42), a high-voltage discharge electrode 5, a fixing pin 6 (wherein: a pin 61, a screw hole 62 and a mounting plate 63), a mounting fitting 7, a high-voltage lead 8, an equipotential connector 9, an air gap 10, a bottom plate 11 (wherein: a hanging lug 111 and a hanging hole 112), a fastening ring 21 and an increased-climbing insulating support piece 22.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1 and 2, the fixed external series gap multi-chamber gap arrester capable of being replaced with electricity includes an installation fitting 7 fixed on a cross arm of a line tower, a multi-chamber gap arrester assembly 1, a column-type insulating bracket 2 and a base fixing clamp 3, wherein a low-voltage end of the column-type insulating bracket 2 is fixed on an installation plane of the installation fitting 7 through a fastener, the base fixing clamp 3 is fixed on the installation plane of the installation fitting 7 through a fastener, and the bottom of the multi-chamber gap arrester assembly 1 is hung on the base fixing clamp 3 through a bottom plate 11; meanwhile, the middle part of the column-type insulating support 2 is provided with a fastening ring 21, one end pin 61 of the fixing pin 6 is connected with the fastening ring 21 through a mounting screw hole or a crimping process (as shown in fig. 3 and 4), a screw hole 62 on a mounting plate 63 at the other end of the fixing pin 6 is connected with the middle end fixing clip 4 through a fastener, and the middle end fixing clip 4 is clamped in the middle part of the multi-chamber gap lightning arrester assembly 1. The high-voltage discharge electrode 5 is fixed on the top end of the column type insulating support 2 through a fastener, and an air gap 10 is formed between the high-voltage discharge electrode 5 and the top end electrode of the multi-chamber gap lightning arrester assembly 1. One end of the high-voltage lead 8 is connected with the high-voltage discharge electrode 5 in an equipotential mode through a fastener, and the other end of the high-voltage lead 8 is connected with the overhead line conducting wire in an equipotential mode through an equipotential connector 9.
As shown in fig. 2, the bottom plate 11 is integrally formed by processing a conductive metal material, two hanging lugs 111 are respectively disposed on two sides of the bottom plate 11, the two hanging lugs 111 are symmetrically arranged, and a hanging-picking hole 112 is formed on the bottom surface of the bottom plate 11.
As shown in fig. 5, the base fixing clip 3 includes a mounting box 32, a first U-shaped spring 33 disposed inside the mounting box 32, a conductive ring 34 disposed inside the first U-shaped spring 33, and a latch 31, wherein the conductive ring 34 and the first U-shaped spring 33 are coaxially disposed and fixedly mounted on the top of the mounting box 32 by a fastener, and at the same time, the conductive ring 34 is latched on the bottom of the multi-chamber gap arrester assembly 1. Referring to fig. 6, the bottom of the rear of each of the two side plates of the mounting box 32 is provided with a through hole 321, one end of the latch 31 is clamped in the through hole 321 of one side plate of the mounting box 32, the other end of the latch 31 is clamped in the through hole 321 of the other side plate of the mounting box 32, and the latch 31 rotates around the center line of the two through holes 321.
As shown in fig. 6, two side plates of the mounting box 32 are respectively provided with an L-shaped guide hole 322, the opening direction of a transverse guide hole 325 of the L-shaped guide hole 322 is consistent with the opening direction of the front of the mounting box 32 and is communicated with the outside, a vertical guide hole 326 of the L-shaped guide hole 322 is guided upwards along the side plates, and the hanging lug 111 of the bottom plate 11 is inserted into the L-shaped guide hole 322; meanwhile, the bottom of the front end faces of the two side plates of the mounting box 32 is horizontally provided with a locking baffle 323 outwards, the outer end faces of the locking baffle 323 are respectively provided with a groove 324 for clamping the lock, and the top face of the locking baffle 323 is flush with the bottom face of the transverse guide hole 325.
In this embodiment, the latch 31 is made of an elastic metal material, the conductive ring 34 is made of brass or red copper with good conductivity, and the first U-shaped resilient piece 33 is made of spring steel, so as to increase the pressure between the conductive ring 34 and the bottom of the multi-chamber gap lightning arrester assembly 1 and increase the contact area.
As shown in fig. 7, the middle fixing clip 4 includes a second U-shaped spring 41 and a clamp spring 42 disposed inside the second U-shaped spring, the screw hole 62 of the mounting plate 63 of the fixing pin 6 is locked with the clamp spring 42 and the second U-shaped spring 41 by a fastener, and the clamp spring 42 is clamped in the middle of the multi-chamber gap arrester assembly 1. In this embodiment, the material of jump ring 42 is the spring steel, and the material of second U type shell fragment 41 is the spring steel to improve the pressure to jump ring 42, increase jump ring 42 to the mechanical stress at the middle part of the multicavity room clearance arrester subassembly 1 of centre gripping.
As shown in figure 3, the column type insulating support 2 is sleeved with a climbing-increasing insulating support 22, the climbing-increasing insulating support 22 is a composite-coat insulator structure with climbing-increasing umbrella skirts, and the creepage distance along the surface is more than 31 mm/kV. And the fastening ring 21 is fixed in the middle of the column type insulating bracket 2 through a buckling process, and in addition, the fastening ring 21 is provided with a mounting hole for connecting the pin 61 of the fixing pin 6.
In practical engineering application, the column type insulating support 2, the base fixing clamp 3, the middle-end fixing clamp 4, the high-voltage discharge electrode 5, the fixing pin 6, the installation hardware 7, the high-voltage lead 8 and the equipotential connector 9 are of an integral structure and are installed on a cross arm of a high-voltage line tower to be thrown into at one time.
The multi-chamber gap arrester assembly 1 is a component which needs maintenance and replacement, and is provided with a bottom plate 11 at the bottom, and is hung with a base fixing clamp 3 through the bottom plate 11. The bottom plate 11 is installed at the bottom of the multi-chamber gap arrester assembly 1, the hook of the insulated operating rod of the common tool of the electric power system is used for hooking the hooking hole 112 of the bottom plate 11, the multi-chamber gap arrester assembly 1 is sent to the position of the L-shaped guide hole 322 of the base fixing clip 3, and after the hanging lug 111 is inserted into the L-shaped guide hole 322, the multi-chamber gap arrester assembly 1 is guided into the bottom of the base fixing clip 3 along the transverse guide hole 325 of the L-shaped guide hole 322 by the self-gravity of the multi-chamber gap arrester assembly 1. Then the insulated operating rod is separated from the hanging hole 112, is arranged at the middle part of the multi-chamber gap arrester assembly 1 in an overhead manner, and is pushed upwards until the multi-chamber gap arrester assembly 1 is simultaneously clamped into the clamp spring 42 of the middle-end fixing clamp 4 and the conducting ring 34 of the base fixing clamp 3, and the installation is completed. At this time, an air gap 10 with a constant distance is formed between the high-voltage end electrode and the high-voltage discharge electrode 5 of the multi-chamber gap arrester assembly 1, and is used for isolating rated power frequency network voltage. Finally, the insulating operating rod is hooked on the latch 31 of the base fixing clip 3, and the latch 31 is pushed in the counterclockwise direction shown in fig. 4, so that the latch 31 is pushed to the position of the groove 324 of the locking baffle 323 on the mounting box 32, and the multi-chamber gap lightning arrester assembly 1 can be effectively reinforced and prevented from loosening.
When disassembly of the multi-chamber gap arrester assembly 1 is required for external reasons, it is possible to operate in reverse order of the above steps:
the latch 31 is hooked with an insulated operating lever and pulled downward until the latch 31 is disengaged from the recess of the locking stop 323, and the latch 31 automatically disengages from the droop.
The insulated operating rod is hung at the middle position of the multi-chamber gap arrester assembly 1 and pulled downwards until the components are separated from the middle fixing clamp 4.
The multi-chamber gap arrester assembly 1 is picked up along the L-shaped guide groove 322 of the base fixing clip 3 by hooking the insulated operating rod on the picking and hanging hole 112 on the bottom plate 11 of the multi-chamber gap arrester assembly 1 and sending the picked multi-chamber gap arrester assembly to the outside in a light manner, and the dismounting operation is completed.
The fixed external series gap multi-chamber gap lightning arrester capable of being replaced in an electrified way has the advantages that the high-voltage lead is connected to the determined fixed point in an equipotential mode, the fixed gap structure is realized with the discharge electrode of the multi-chamber gap lightning arrester, the installation operation construction difficulty is reduced, the construction efficiency is improved, and the construction quality is guaranteed. The fixed gap structure is a rod-rod structure, so that the stability of the lightning impulse action value of the device is ensured. The multi-chamber gap arrester body can be quickly pulled down through the common insulating operating rod with the hook of the power system, so that the disassembly purpose is realized. Meanwhile, the device can be quickly guided into the guide groove by the aid of hanging hole removing operation on the bottom base plate of the multi-chamber gap lightning arrester assembly, and fixed installation is achieved by the aid of a middle-end fixing clamp on the column type insulating support. The technical difficulty of operators is reduced, and the live replacement work efficiency is improved. The charged replacing structure is used as primary equipment to be fixedly input, only the faulty multi-chamber gap body needs to be replaced in subsequent operation and maintenance, and the economical efficiency and the practicability of the whole structure in engineering application are fully considered.
Claims (8)
1. The utility model provides a fixed outer series gap multi-chamber clearance arrester that can change with electricity which characterized in that: the multi-chamber gap lightning arrester comprises an installation fitting (7) fixed on a cross arm of a line tower, a multi-chamber gap lightning arrester component (1), a column type insulating support (2) and a base fixing clamp (3), wherein the low-voltage end of the column type insulating support (2) is fixed on an installation plane of the installation fitting (7), the base fixing clamp (3) is fixed on the installation plane of the installation fitting (7), and the bottom of the multi-chamber gap lightning arrester component (1) is connected with the base fixing clamp (3) in a hanging mode through a bottom plate (11);
two hanging lugs (111) are respectively arranged on two side edges of the bottom plate (11), the two hanging lugs (111) are symmetrically arranged, and a hanging picking hole (112) is formed in the bottom surface of the bottom plate (11);
the base fixing clamp (3) comprises a mounting box (32), a first U-shaped elastic sheet (33) arranged inside the mounting box (32), a conducting ring (34) arranged inside the first U-shaped elastic sheet (33) and a clamping lock (31), the conducting ring (34) and the first U-shaped elastic sheet (33) are coaxially arranged and fixedly mounted at the top of the mounting box (32), and the conducting ring (34) is clamped at the bottom of the multi-chamber gap lightning arrester assembly (1); two side plates of the mounting box (32) are respectively provided with an L-shaped guide hole (322), the opening direction of a transverse guide hole (325) of the L-shaped guide hole (322) is consistent with the front opening direction of the mounting box (32) and is communicated with the outside, a vertical guide hole (326) of the L-shaped guide hole (322) is upwards guided along the side plates, and a hanging lug (111) of the bottom plate (11) is inserted into the L-shaped guide hole (322).
2. The hot-line replaceable fixed external series gap multi-chamber gap arrestor of claim 1, wherein: the bottom of the rear part of the two side plates of the mounting box (32) is respectively provided with a through hole (321), one end of the lock (31) is clamped in the through hole (321) of one side plate of the mounting box (32), the other end of the lock (31) is clamped in the through hole (321) of the other side plate of the mounting box (32), and the lock (31) rotates by taking the circle center connecting line of the two through holes (321) as an axis; the bottom of the front end faces of the two side plates of the mounting box (32) is horizontally and outwards provided with a locking baffle plate (323), the outer end face of the locking baffle plate (323) is respectively provided with a groove (324) for clamping the lock, and the top face of the locking baffle plate (323) is flush with the bottom face of the transverse guide hole (325).
3. The hot-line replaceable fixed external series gap multi-chamber gap arrestor of claim 1, wherein: the middle part of column type insulating support (2) is provided with tighrening ring (21), and one end round pin post (61) of fixed pin (6) is connected with tighrening ring (21), and screw (62) on fixed pin (6) other end mounting panel (63) are connected with middle-end fixation clamp (4) with the fastener, and middle-end fixation clamp (4) joint is at the middle part of multicavity room clearance arrester subassembly (1).
4. The hot-line replaceable fixed external series gap multi-chamber gap arrestor of claim 3, wherein: middle-end fixation clamp (4) include second U type shell fragment (41) and arrange inside jump ring (42) of second U type shell fragment, screw (62) on fixed pin (6) mounting panel (63) are locked with jump ring (42) and second U type shell fragment (41) with fastener, and jump ring (42) joint is in the middle part of multi-chamber clearance arrester subassembly (1).
5. The hot-line replaceable fixed external series gap multi-chamber gap arrestor of claim 1, wherein: the column type insulating support (2) is sleeved with a climbing-increasing insulating support piece (22), the climbing-increasing insulating support piece (22) is of a composite outer sleeve insulator structure with a climbing-increasing umbrella skirt, and the creepage distance along the surface is larger than 31 mm/kV.
6. The hot-line replaceable fixed external series gap multi-chamber gap arrestor of claim 1, wherein: a high-voltage discharge electrode (5) is fixed at the top end of the column-type insulating support (2), and an air gap (10) is formed between the high-voltage discharge electrode (5) and the top electrode of the multi-chamber gap lightning arrester assembly (1); one end of the high-voltage lead (8) is connected with the high-voltage discharge electrode (5) in an equipotential mode through a fastener, and the other end of the high-voltage lead (8) is connected with the overhead line conductor in an equipotential mode through an equipotential connector (9).
7. The hot-line replaceable fixed external series gap multi-chamber gap arrestor of claim 4, wherein: the clamp spring (42) is made of spring steel, and the second U-shaped elastic sheet (41) is made of spring steel.
8. The hot-line replaceable fixed external series gap multi-chamber gap arrestor of claim 1, wherein: kayser (31) are for having elastic metal material, and conducting ring (34) are good brass or red copper material of electric conductive property, and first U type shell fragment (33) are the spring steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110066899.7A CN112909880B (en) | 2021-01-19 | 2021-01-19 | Fixed outer series gap multi-chamber gap lightning arrester capable of being replaced in electrified mode |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110066899.7A CN112909880B (en) | 2021-01-19 | 2021-01-19 | Fixed outer series gap multi-chamber gap lightning arrester capable of being replaced in electrified mode |
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| CN112909880A CN112909880A (en) | 2021-06-04 |
| CN112909880B true CN112909880B (en) | 2022-05-20 |
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| CN106058784A (en) * | 2016-08-09 | 2016-10-26 | 丹东电力设备厂 | Lightning arrester installation pedestal |
| CN109449763A (en) * | 2018-09-18 | 2019-03-08 | 武汉水院电气有限责任公司 | A kind of multi-chamber gap arrester production method |
| CN208834829U (en) * | 2018-09-18 | 2019-05-07 | 广东电网有限责任公司 | A kind of porcelain pole arm type arrester with series gaps |
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2021
- 2021-01-19 CN CN202110066899.7A patent/CN112909880B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4320432A (en) * | 1979-12-03 | 1982-03-16 | San Angelo Electric Service Company | High voltage transformer bushing fuse and arrester arrangement |
| US6002571A (en) * | 1997-10-24 | 1999-12-14 | Sediver, Societe Europeenne D'isolateurs En Verre Et Composite | Lightning arrester assembly for an overhead electricity line with a device for flagging an arrester malfunction |
| CN106058784A (en) * | 2016-08-09 | 2016-10-26 | 丹东电力设备厂 | Lightning arrester installation pedestal |
| CN109449763A (en) * | 2018-09-18 | 2019-03-08 | 武汉水院电气有限责任公司 | A kind of multi-chamber gap arrester production method |
| CN208834829U (en) * | 2018-09-18 | 2019-05-07 | 广东电网有限责任公司 | A kind of porcelain pole arm type arrester with series gaps |
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| Publication number | Publication date |
|---|---|
| CN112909880A (en) | 2021-06-04 |
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