CN110554306B - Circuit breaker main fracture signal takes out frock - Google Patents
Circuit breaker main fracture signal takes out frock Download PDFInfo
- Publication number
- CN110554306B CN110554306B CN201810457112.8A CN201810457112A CN110554306B CN 110554306 B CN110554306 B CN 110554306B CN 201810457112 A CN201810457112 A CN 201810457112A CN 110554306 B CN110554306 B CN 110554306B
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- signal transmission
- circuit breaker
- signal
- transmission line
- fixedly connected
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- 230000008054 signal transmission Effects 0.000 claims abstract description 65
- 239000004020 conductor Substances 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims description 11
- 238000007689 inspection Methods 0.000 claims description 10
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 24
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009421 internal insulation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- 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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Breakers (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention provides a signal taking-out tool for a main fracture of a circuit breaker, which comprises a base body which is hermetically arranged on an end cover of the circuit breaker, wherein a signal transmission piece is fixedly arranged in the base body in an insulating way or integrally formed, the signal transmission piece is provided with an inner end which corresponds to a cavity of the circuit breaker when in use and an outer end which is arranged outside the circuit breaker, a signal transmission line is fixedly connected to the inner end, and the other end of the signal transmission line is a fixedly connected end which is fixedly connected with a signal conductor of the circuit breaker. The testing rod piece assembled with the base body and the signal conductor in a sliding mode is replaced by a signal transmission piece fixedly arranged in the base body or integrally formed in the base body and a signal transmission line fixedly connected with the signal transmission piece, and the signal transmission line and the signal conductor are fixedly connected. Even the vibrations appear in the circuit breaker when testing, relative sliding friction can not appear between signal transmission line and the signal conductor yet, can not cause the insulating problem to appear in the circuit breaker owing to produce the foreign matter.
Description
Technical Field
The invention relates to a circuit breaker main fracture signal taking-out tool.
Background
The ultra-high voltage line in China is the most advanced power transmission technology in the world at present, and is also an important innovation achievement with few and leading worlds and completely independent intellectual property rights in China. The circuit breaker has good breaking capacity in a power transmission line and has a certain protection effect on the line, so that the mechanical property test of the circuit breaker is required to reach the national standard. When the 1100kV circuit breaker characteristic test is carried out, the access method of the public signal point is very important for the test.
The utility model discloses a grant bulletin number is CN 202119635U's a utility model discloses a high voltage circuit breaker mechanical properties testing arrangement, this testing arrangement sealed mounting is the pedestal on the circuit breaker end cover when using, has seted up the perforation on the pedestal, wears to be equipped with the test member at the sealed direction in the perforation, and the test member includes measuring head mount pad and the guide bar that the front and back screw thread links to each other, still including setting up the measuring head at measuring head mount pad front end. When the high-voltage circuit breaker guide seat is used specifically, the measuring rod piece sends the measuring head to the signal conductor on the high-voltage circuit breaker guide seat, so that the measuring head extends into the signal conductor and is communicated in a contact mode. Simultaneously, set up the bell mouth on the pedestal, install a plurality of taper sleeve piecemeals that form the taper sleeve in the bell mouth, wear the dress in the taper sleeve with the test member, be equipped with the nut at the outside screw thread of pedestal, the nut can compress tightly the taper sleeve piecemeal in order to press from both sides tight test member when screwing up.
However, in the test process of the circuit breaker, due to the existence of the operating mechanism, the circuit breaker can generate large vibration, the nut is easily vibrated to be loose, and the clamping acting force on the test rod piece is reduced. Because the relation that only is contact intercommunication between test member and the signal conductor, the signal conductor takes place relative movement and pushes away from the test member with the test member easily, and finally, can pop out the test member by the circuit breaker in owing to the effect of circuit breaker internal and external differential pressure, cause the injury to the operating personnel person. In the relative movement process of the signal conductor and the test rod piece, foreign matters are easily generated on the signal conductor and/or the test rod piece, so that the flashover condition is caused in the circuit breaker, and the integral insulation capacity is reduced. Meanwhile, some foreign substances may be generated between the test bar and the signal conductor when the test bar is initially inserted.
Disclosure of Invention
The invention aims to provide a circuit breaker main fracture signal taking-out tool, which is used for solving the problem that insulation hidden danger occurs in a circuit breaker due to the fact that a test rod piece and a signal conductor are easy to slide relatively in the prior art.
In order to achieve the purpose, the technical scheme of the breaker main fracture signal taking-out tool is as follows: the utility model provides a frock is taken out to circuit breaker owner fracture signal, is including being used for the pedestal of seal installation on the circuit breaker end cover, the pedestal internal insulation has set firmly or integrated into one piece has signal transmission spare, and signal transmission spare has the inner that corresponds with the circuit breaker cavity when using and locates the outside outer end of circuit breaker, link firmly signal transmission line on the inner, the other end of signal transmission line is for being used for with the fixed end that links firmly of the signal conductor of circuit breaker.
The invention has the beneficial effects that: the invention provides a circuit breaker main fracture signal taking-out tool which comprises a base body which is hermetically arranged on a circuit breaker end cover when in use, wherein a signal transmission piece is fixedly arranged in the base body in an insulating mode or integrally formed, the signal transmission piece is provided with an inner end corresponding to a circuit breaker cavity and an outer end positioned outside a circuit breaker, when in use, a signal transmission line is connected between the inner end and a signal conductor of the circuit breaker, and the signal transmission line is fixedly connected with the inner end and the signal conductor. The testing rod piece which is assembled with the base body and the signal conductor in a sliding mode in the prior art is replaced by a signal transmission piece which is fixedly arranged or integrally formed in the base body and a signal transmission line which is fixedly connected with the signal transmission piece, and the signal transmission line and the signal conductor are fixedly connected. The condition that can not appear producing the foreign matter because of sliding friction when initial assembly takes place, moreover, even shock appears in the circuit breaker when the test, relative sliding friction can not appear yet between signal transmission line and the signal conductor, can not cause the insulating problem to appear in the circuit breaker owing to producing the foreign matter.
The signal transmission piece is a switching terminal with the inner end and the outer end being wiring ends.
And threaded blind holes which are fixedly connected with the signal transmission line and the connecting ring of the external port line are correspondingly formed in the inner end and the outer end of the adapter terminal.
The pedestal is including being used for the base of seal installation on the circuit breaker end cover and the insulating seat of sealed spiral-lock on keeping away from circuit breaker end cover one side of base, signal transmission spare is located on the insulating seat and the inner passes base and insulating seat and extends to the cavity of circuit breaker.
The insulating seat is fixedly arranged on the base through a fastening screw, and an elastic washer is arranged between the head of the fastening screw and the insulating seat.
The base is provided with a through hole for the inner end of the signal transmission piece to pass through, and the signal transmission piece and the through hole are arranged at intervals in the radial direction.
And the signal transmission piece and the insulating base are integrally cast and molded.
The base body is provided with a fastening structure which can be used for fastening the base body on the end cover of the point inspection hole of the circuit breaker in a sealing manner.
The fastening structure is a plurality of bolt through holes which are distributed along the circumferential direction and are arranged corresponding to the threaded blind holes on the point inspection hole end cover.
The fixed connection end of the signal transmission line is a connection ring which can be fixedly connected on the signal conductor through a screw.
Drawings
Fig. 1 is a schematic diagram of an embodiment of a circuit breaker main fracture signal taking-out tool of the invention (a signal transmission line is not shown in the figure);
FIG. 2 is a schematic view of the mounting flange of FIG. 1;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is a schematic view of the mating of the insulating flange and terminal bar of FIG. 1;
FIG. 5 is a schematic diagram of a signal transmission line in an embodiment of a circuit breaker main fracture signal take-out tool of the invention;
fig. 6 is a schematic diagram of connection between a signal transmission line and a signal conductor and a terminal rod in an embodiment of a tool for taking out a signal of a main fracture of a circuit breaker.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to 6, the signal extraction tool comprises a base body which is hermetically mounted on an end cover of the circuit breaker in use, a terminal rod 3 which forms a switching terminal is integrally and penetratingly mounted in the base body, the inner end of the terminal rod 3 is located in a cavity of the circuit breaker in use, the outer end of the terminal rod 3 is located outside a shell of the circuit breaker, and a signal transmission line 7 is fixedly connected between the inner end of the terminal rod 3 and a signal conductor of the circuit breaker.
During the use, pedestal fixed mounting avoids additionally trompil and produces the trompil degree of difficulty big on the circuit breaker casing on the point inspection hole end cover of seting up on the circuit breaker casing, changes the problem that the casing structure is with high costs and appears. Specifically, the base body comprises a fixed flange 1 which is arranged on the end cover of the point inspection hole to form the base, a through hole 11 for the terminal rod 3 to pass through is formed in the fixed flange 1, and the size of the through hole 11 is smaller than the inner diameter of the point inspection hole. As can be seen from fig. 1, the inner diameter of the through hole 11 is larger than the outer diameter of the terminal rod 3, so that the terminal rod is not in direct contact with the fixing flange, and on one hand, the insulation between the terminal rod and the fixing flange is ensured; on the other hand, in the signal taking-out process, even if the terminal rod moves in the axial direction, friction between the terminal rod and the hole wall of the through hole of the fixed flange can be avoided, and foreign matters are prevented from being generated. When the fixing flange 1 is used, an annular groove is formed in the butt joint side face of the fixing flange 1, which is in butt joint with the end cover of the point inspection hole, and a first sealing ring 5 is embedded in the annular groove. A circle of bolt through holes 12 are formed in the edge of the fixing flange, the circle of bolt through holes 12 form a connecting structure, the fixing flange is fixedly installed on the point inspection hole end cover through bolts and tightly presses a sealing ring on the fixing flange during use, and the sealing of a cavity of the circuit breaker is achieved. Meanwhile, a circle of threaded blind holes 13 are formed in the other axial side face of the fixed flange on the radial inner side of the bolt through holes.
The base body further comprises an insulating flange 2 fixed on the other axial side face of the fixed flange and forming an insulating base, the insulating flange 2 and the terminal rod 3 are integrally molded by casting, and two ends of the terminal rod 3 penetrate out from two axial ends of the insulating flange. An annular groove is formed in the axial side face, facing the fixed flange, of the insulating flange 2, and a second sealing ring 6 is embedded in the annular groove in use. The insulating flange is provided with a circle of screw through holes which are correspondingly communicated with the thread blind holes on the fixing flange, when the insulating flange is used, the screws 4 penetrate through the screw through holes and are screwed into the thread blind holes, the fixing between the insulating flange and the fixing flange is realized, the fixing is connected with the pressing sealing ring to realize sealing, and the elastic washer is arranged between the head of each screw 4 and the insulating flange in a pressing mode and used for preventing looseness.
In the invention, the terminal rod comprises a rod-shaped body, two screw holes 31 are respectively formed in the inner end and the outer end of the rod-shaped body, and the screw holes 31 are threaded blind holes. The signal transmission line 7 of this embodiment is flexible structure, and the both ends of signal transmission line have set firmly go-between 71 respectively, and during the concrete use, compress tightly the go-between of signal transmission line one end in the screw hole department of bar-shaped body through the screw, and the go-between of the other end passes through the fix with screw on the signal conductor of circuit breaker, the signal conductor of intercommunication terminal stick and circuit breaker. The length of the signal transmission line is greater than the length between the wiring part of the terminal rod and the wiring part of the signal conductor, so that the signal transmission line is provided with the bent buffer section, the installation is convenient, and meanwhile, when the circuit breaker vibrates, the connecting ring of the signal transmission line can shake together with the correspondingly connected signal conductor, and the sliding friction condition cannot occur.
When the invention is used, one end of the signal transmission line is fixedly connected with the signal conductor, the other end of the signal transmission line is connected with the terminal rod, and finally, the seat body and the terminal rod are hermetically arranged on the shell of the circuit breaker and filled with SF6The gas was tested.
In the invention, when the breaker vibrates, the bolt for fixing the insulating flange can loosen, at the moment, the insulating flange can move for a certain distance in the direction departing from the breaker, but the sealing ring between the insulating flange and the fixing flange is still in a compressed state, so that the sealing performance can be ensured. Moreover, even if the insulating flange drives the terminal rod to move for a certain distance in the direction deviating from the breaker, the length of the signal transmission line is large, the signal transmission line cannot be in a stretching state, and the signal transmission line is not affected.
The terminal rod constitutes signal transmission spare, and in other embodiments, signal transmission spare's cross-section can design according to actual conditions, and in addition, not only can be integrated into one piece's relation between signal transmission spare and the pedestal, also can be the relation of fixed assembly.
Claims (7)
1. The utility model provides a frock is taken out to circuit breaker owner fracture signal, is including being used for the pedestal of sealed installation on the circuit breaker end cover, its characterized in that: the base body is internally and integrally formed with a signal transmission piece, the signal transmission piece is provided with an inner end corresponding to the cavity of the circuit breaker when in use and an outer end arranged outside the circuit breaker, the inner end is fixedly connected with a signal transmission line, and the other end of the signal transmission line is a fixedly connected end fixedly connected with a signal conductor of the circuit breaker; the base body comprises a base used for being hermetically installed on the circuit breaker end cover and an insulating base which is hermetically buckled on the side face of the base far away from the circuit breaker end cover, and the insulating base is fixedly arranged on the base through a fastening screw; the signal transmission piece is arranged on the insulating seat, and the inner end of the signal transmission piece penetrates through the base and the insulating seat and extends into the cavity of the circuit breaker; the signal transmission piece and the insulating base are integrally cast and molded; the base is a fixed flange used for being mounted on the point inspection hole end cover, a through hole for a signal transmission piece to pass through is formed in the fixed flange, the inner diameter of the through hole is larger than the outer diameter of the signal transmission piece, the insulating base is an insulating flange fixed on the axial side face of the fixed flange, an annular groove is formed in the axial side face, facing the fixed flange, of the insulating flange, a second sealing ring is embedded in the annular groove when the signal transmission piece is used, the signal transmission piece is a terminal rod, the length of the signal transmission line is larger than the length between a wiring portion of the terminal rod and a wiring portion of a signal conductor, and the signal transmission line is provided with a bent buffer section; when the signal transmission line is used, one end of the signal transmission line is fixedly connected with the signal conductor, and the other end of the signal transmission line is connected with the terminal rod.
2. The frock is taken out to circuit breaker main fracture signal of claim 1, its characterized in that: the inner end and the outer end of the terminal rod are wiring ends.
3. The frock is taken out to circuit breaker main fracture signal of claim 2, its characterized in that: and threaded blind holes which are fixedly connected with the signal transmission line and the connecting ring of the external port line are correspondingly formed in the inner end and the outer end of the terminal rod.
4. The circuit breaker main break signal take-out tool according to claim 1, 2 or 3, characterized in that: an elastic washer is arranged between the head of the fastening screw and the insulating seat.
5. The circuit breaker main break signal take-out tool according to claim 1, 2 or 3, characterized in that: the base body is provided with a fastening structure which can be used for fastening the base body on the end cover of the point inspection hole of the circuit breaker in a sealing manner.
6. The frock is taken out to circuit breaker main fracture signal of claim 5, its characterized in that: the fastening structure is a plurality of bolt through holes which are distributed along the circumferential direction and are arranged corresponding to the threaded blind holes on the point inspection hole end cover.
7. The breaker main break signal take-out tool according to claim 1 or 2, characterized in that: the fixed connection end of the signal transmission line is a connection ring which can be fixedly connected on the signal conductor through a screw.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810457112.8A CN110554306B (en) | 2018-05-14 | 2018-05-14 | Circuit breaker main fracture signal takes out frock |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810457112.8A CN110554306B (en) | 2018-05-14 | 2018-05-14 | Circuit breaker main fracture signal takes out frock |
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CN110554306A CN110554306A (en) | 2019-12-10 |
CN110554306B true CN110554306B (en) | 2022-07-01 |
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CN201810457112.8A Active CN110554306B (en) | 2018-05-14 | 2018-05-14 | Circuit breaker main fracture signal takes out frock |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202119635U (en) * | 2011-05-26 | 2012-01-18 | 平高集团有限公司 | High voltage breaker mechanical characteristic testing device |
CN205539379U (en) * | 2016-03-25 | 2016-08-31 | 山东泰开高压开关有限公司 | A frock for circuit breaker mechanical characteristic test |
CN206558453U (en) * | 2017-03-28 | 2017-10-13 | 上力电力科技有限公司 | A kind of structure that reclosing breaker can be made to be easily installed wiring |
CN206685647U (en) * | 2017-05-12 | 2017-11-28 | 新昌县澄潭镇达东机械厂 | A kind of novel mechanical electronic plug |
CN207542139U (en) * | 2017-10-17 | 2018-06-26 | 珠海许继电气有限公司 | A kind of double-fracture killer switch major loop transmission device |
-
2018
- 2018-05-14 CN CN201810457112.8A patent/CN110554306B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202119635U (en) * | 2011-05-26 | 2012-01-18 | 平高集团有限公司 | High voltage breaker mechanical characteristic testing device |
CN205539379U (en) * | 2016-03-25 | 2016-08-31 | 山东泰开高压开关有限公司 | A frock for circuit breaker mechanical characteristic test |
CN206558453U (en) * | 2017-03-28 | 2017-10-13 | 上力电力科技有限公司 | A kind of structure that reclosing breaker can be made to be easily installed wiring |
CN206685647U (en) * | 2017-05-12 | 2017-11-28 | 新昌县澄潭镇达东机械厂 | A kind of novel mechanical electronic plug |
CN207542139U (en) * | 2017-10-17 | 2018-06-26 | 珠海许继电气有限公司 | A kind of double-fracture killer switch major loop transmission device |
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CN110554306A (en) | 2019-12-10 |
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