CN110824202B - Withstand voltage detection device of vacuum circuit breaker - Google Patents
Withstand voltage detection device of vacuum circuit breaker Download PDFInfo
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- CN110824202B CN110824202B CN201911090266.9A CN201911090266A CN110824202B CN 110824202 B CN110824202 B CN 110824202B CN 201911090266 A CN201911090266 A CN 201911090266A CN 110824202 B CN110824202 B CN 110824202B
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- 238000001514 detection method Methods 0.000 title claims abstract description 27
- 230000003068 static effect Effects 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000009413 insulation Methods 0.000 claims description 31
- 238000007789 sealing Methods 0.000 claims description 5
- 238000007654 immersion Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 description 9
- 238000009434 installation Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
-
- 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
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
- G01R31/3274—Details related to measuring, e.g. sensing, displaying or computing; Measuring of variables related to the contact pieces, e.g. wear, position or resistance
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention belongs to the field of a vacuum circuit breaker withstand voltage detection device, and particularly relates to a vacuum circuit breaker withstand voltage detection device which comprises an insulating tank, a supporting conductive plate and a lead-out part, wherein the insulating tank is used for containing insulating liquid for the vacuum circuit breaker to be detected to be immersed in, and the supporting conductive plate is arranged in the insulating tank and is used for supporting and conducting matching with the lead-out part at the static end of the vacuum circuit breaker to be detected; and the external electric element is electrically connected with the supporting and conducting plate and used for introducing external voltage so as to electrify the static end leading-out part of the vacuum circuit breaker to be tested. The insulating liquid is added into the insulating groove, so that a sealed air chamber in the medium-pressure gas-filled cabinet can be simulated, the contact between the static end leading-out part of the support current-conducting plate and the vacuum circuit breaker to be detected and the outside air is avoided, the high-voltage power supply is connected with an external electric element, the high voltage of the static end leading-out part of the vacuum circuit breaker to be detected can be subjected to voltage withstand detection, the vacuum circuit breaker does not need to be installed in the corresponding medium-pressure gas-filled cabinet in the whole voltage withstand detection process, and the voltage withstand detection of the vacuum circuit breaker can be simply and conveniently realized.
Description
Technical Field
The invention belongs to the field of a withstand voltage detection device of a vacuum circuit breaker, and particularly relates to a withstand voltage detection device of a vacuum circuit breaker.
Background
The vacuum circuit breaker is a core element in a medium-pressure gas-filled cabinet, and comprises an operating mechanism, an insulating cylinder, an arc extinguish chamber, an insulating pull rod and other parts, wherein the insulating cylinder is provided with a first wire outlet connector and a second wire outlet connector, the first wire outlet connector is connected with a static contact of the arc extinguish chamber to form a static end leading-out part of the vacuum circuit breaker, correspondingly, the medium-pressure gas-filled cabinet comprises a cabinet body, a sealed gas chamber is arranged in the cabinet body, and the insulating cylinder of the vacuum circuit breaker is positioned in the sealed gas chamber.
In the production process of the medium-voltage switch gas-filled cabinet product, the vacuum circuit breaker is usually assembled first, and then the vacuum circuit breaker is installed in a gas tank of the medium-voltage switch gas-filled cabinet for sealing. After the gas tank is sealed to inflate, need carry out withstand voltage to vacuum circuit breaker and detect, if detect unqualifiedly then need dismantle the gas tank and take out vacuum circuit breaker and inspect and maintain, have the problem of secondary reworking, waste time and energy to, probably cause the damage of important components and parts at the dismantlement in-process. Therefore, one effective method for solving this problem is to perform the withstand voltage test of the vacuum circuit breaker in advance before the gas tank is installed.
Disclosure of Invention
The invention aims to provide a withstand voltage detection device of a vacuum circuit breaker, which is used for carrying out withstand voltage detection on the vacuum circuit breaker before being installed in a gas box.
In order to achieve the purpose, the withstand voltage detection device of the vacuum circuit breaker adopts the following technical scheme:
a pressure-resistant detection device of a vacuum circuit breaker comprises an insulating tank, a pressure sensor and a pressure sensor, wherein the insulating tank is used for containing insulating liquid for immersing the vacuum circuit breaker to be detected; the supporting conductive plate is arranged in the insulating groove and is used for supporting and conducting matching with a static end leading-out part of the vacuum circuit breaker to be tested; and the external electric element is electrically connected with the supporting and conducting plate and used for introducing external voltage so as to electrify the static end leading-out part of the vacuum circuit breaker to be tested.
The invention has the beneficial effects that: the insulating liquid is added into the insulating tank, the vacuum circuit breaker is immersed into the insulating liquid, the static end leading-out part of the vacuum circuit breaker and the support conducting plate support the conducting fit and are immersed into the insulating liquid, therefore, a sealed air chamber in the medium-pressure gas-filled cabinet can be simulated, and the static end leading-out part of the support conducting plate and the vacuum circuit breaker to be tested is prevented from contacting with the outside air. On this basis, because support the current-conducting plate and be connected with plus electric component is electrically conductive, with high voltage power supply and plus electric component switch-on, alright carry out withstand voltage detection to the quiet end extraction portion high voltage of vacuum circuit breaker that awaits measuring, whole withstand voltage testing process need not to install vacuum circuit breaker in corresponding middling pressure gas tank box, can realize the withstand voltage detection to vacuum circuit breaker simply conveniently.
Further, the support conductive plate is elastically floatingly disposed in the insulation groove in an up-down direction.
The beneficial effects are that: the supporting conductive plate is elastically and floatingly assembled in the insulating groove along the up-down direction, so that the supporting conductive plate can be pressed downwards by utilizing the static end leading-out part of the vacuum circuit breaker when the vacuum circuit breaker is installed, and a tight matching relation between the static end leading-out part and the supporting conductive plate is formed to ensure stable conductive connection between the static end leading-out part and the supporting conductive plate.
Furthermore, a pressure spring extending in the up-down direction is arranged in the insulation groove, and the top end of the pressure spring is in top press fit with the supporting conductive plate, so that the supporting conductive plate is elastically and floatingly arranged in the insulation groove.
The beneficial effects are that: the supporting and conducting plate is pushed by the pressure spring, so that the supporting and conducting plate can be assembled in the insulating groove in an elastic floating mode along the vertical direction simply and conveniently.
Furthermore, the external electric part is fixedly installed on the outer side of the insulating groove through a sealing screw structure, a flexible conductive connecting wire is arranged in the insulating groove, one end of the conductive connecting wire is in conductive connection with the supporting conductive plate, and the other end of the conductive connecting wire is in conductive connection with the external electric part.
The beneficial effects are that: the external electric piece is fixed outside the insulating groove, and an external voltage wire can be conveniently connected with the external electric piece so as to apply voltage to the vacuum arc extinguish chamber through the supporting and conducting plate. And the flexible conductive connecting wire is adopted, so that the conductive connection between the lower supporting conductive plate and the external electric element under the floating condition can be met.
Further, the withstand voltage detection device of the vacuum circuit breaker further comprises a support, the insulating groove is supported and assembled on the support through an insulating support structure, and a vacuum circuit breaker fixing structure is arranged at the top of the support and used for fixing the vacuum circuit breaker to be detected when the static end leading-out part of the vacuum circuit breaker to be detected is in conductive contact with the support conductive plate.
Has the advantages that: the insulation groove is supported and assembled on the bracket through the insulation supporting structure, so that good insulation between the insulation groove and the ground is ensured. Set up vacuum circuit breaker fixed knot on the support and construct and fix vacuum circuit breaker, can make vacuum circuit breaker keep stable state in whole withstand voltage testing process, simultaneously, vacuum circuit breaker's gravity is undertaken to the support, avoids vacuum circuit breaker to apply too big load to the insulating bath.
Further, the insulation support structure comprises an accommodating recess, and the insulation groove is clamped in the accommodating recess.
The beneficial effects are that: the arrangement of the accommodating concave part conveniently installs the insulation groove at a set position without secondary adjustment of the installation position of the insulation groove.
Further, the insulating support structure comprises two insulating crossbars which are arranged in parallel, and the accommodating concave parts are accommodating grooves which are respectively arranged on the two insulating crossbars.
The beneficial effects are that: the accommodating concave part is arranged on the two insulating cross braces arranged in parallel, so that the insulating groove is arranged on the two cross braces when the insulating groove is arranged, and the insulating groove is simply and conveniently arranged and fixed.
Further, circuit breaker fixed knot constructs including setting up the circuit breaker fixed plate at the support top, is equipped with the bolt mounting hole on the circuit breaker fixed plate for wear to adorn fastening bolt in order to with vacuum circuit breaker and circuit breaker fixed plate fixed assembly, the removable assembly of circuit breaker fixed plate is in the top of support.
The beneficial effects are that: the circuit breaker fixing structure is a circuit breaker fixing plate, and the circuit breaker fixing structure can be simply and conveniently arranged. Simultaneously, the removable assembly of the mode that the circuit breaker fixed plate passes through the screw connection is in the top of support can change corresponding circuit breaker fixed plate to the vacuum circuit breaker of different models, improves the high voltage resistant detection device's of vacuum circuit breaker commonality.
Further, the support includes the mount, and the mount includes around a plurality of insulating stands of insulating groove circumference distribution and with the insulating horizontal frame of insulating stand fixed assembly together, insulating horizontal frame includes insulating stull, insulating bearing structure include insulating stand with insulating stull, the insulating groove support is placed on the insulating stull.
The beneficial effects are that: set up insulating horizontal frame and bear the weight of the insulating bath, can simply and stabilize this support of realization to the insulating bath.
Furthermore, the support still includes insulating collet and platform, the mount support is placed on the platform.
The beneficial effects are that: the insulating bottom support and the platform are arranged, so that the whole detection process is ensured to have enough insulation distance with the ground, and the use safety of the voltage-withstanding detection device of the vacuum circuit breaker is ensured.
Drawings
Fig. 1 is a schematic structural view of a withstand voltage detecting apparatus of a vacuum circuit breaker according to the present invention;
FIG. 2 is a schematic view showing the installation state of the insulation groove on the fixing frame;
FIG. 3 is a diagram showing a state of use of the withstand voltage detecting apparatus of the vacuum circuit breaker according to the present invention;
in the figure: 1-an insulating groove; 2-a vacuum interrupter; 3-a fixing frame; 4-insulating bottom support; 5-supporting the platform; 6-a lower cross beam; 7-upper cross beam; 8-upright column; 9-insulating transverse frame; 10-insulating transverse bracing; 11-insulating longitudinal bracing; 12-a breaker fixed plate; 13-bolt mounting holes; 14-supporting the conductive plate; 15-external electric element; 16-electrically conductive connection lines.
Detailed Description
An embodiment 1 of the device for detecting withstand voltage of a vacuum circuit breaker in the invention comprises a bracket and an insulating tank 1 arranged on the bracket, wherein the insulating tank 1 is a container with the periphery and the bottom closed and only the upper part opened, and is used for containing insulating liquid and allowing a vacuum circuit breaker 2 to be detected to immerse so as to simulate a sealed air chamber in a medium-pressure gas-filled cabinet, as shown in fig. 1.
Wherein, the support includes mount 3, insulating collet 4 and platform 5, and insulating collet 4 is used for supporting platform 5 for platform 5 has sufficient insulating distance apart from the bottom surface, and mount 3 is fixed on platform 5, thereby makes mount 4 have sufficient insulating distance apart from the bottom surface.
The structure of the fixing frame 4 is as shown in fig. 2, in this embodiment, the fixing frame is a rectangular frame structure composed of a lower beam 6, an upper beam 7 and a vertical column 8, and an insulation groove installation space for installing an insulation groove is formed by an intermediate space surrounded by the vertical column 8. For the material of the fixing frame, in this embodiment, the upper beam 7 and the lower beam 6 are metal sections to ensure that the fixing frame 4 has a qualified structural strength, and the column 8 is an insulating column made of an insulating material to avoid generating a suspension potential in the voltage-withstanding detection process.
The insulating groove 1 supports the assembly on mount 4 through corresponding insulating support knot, and in this embodiment, insulating bearing structure includes insulating stand and the horizontal frame 9 of insulation that is made by insulating material, and horizontal frame 9 of insulation is fixed on insulating stand through non-metallic connection mode, and in this embodiment, adopt nylon to fix horizontal frame 9 of insulation on the stand. Specifically, the insulating horizontal frame 9 includes two insulating horizontal braces 10 and two insulating vertical braces 11, wherein, one of two insulating vertical braces is fixed between two left-side vertical posts, and the other is fixed between two right-side vertical posts for realizing the fixation of the insulating horizontal frame 9 on the vertical post 8, and the two insulating horizontal braces 10 are arranged in parallel between the two insulating vertical braces 11 along the left-right direction for bearing the insulating groove 1.
In order to facilitate the installation and fixation of the insulation groove 4, an accommodating concave portion for the insulation groove 1 to be matched and clamped is formed in the insulation support structure, specifically, in the embodiment, the accommodating concave portion is an accommodating groove formed in the two insulation crossbars 10, and when the insulation groove 1 is installed, the insulation groove 1 is directly clamped in the accommodating groove, so that the insulation groove 1 can be conveniently placed at an accurate installation position, and secondary adjustment is not needed to be performed on the installation position of the insulation groove. In other embodiments, instead of providing the insulating frame, a horizontal insulating support plate may be fixed between the pillars to support and mount the insulating slot, and a groove may be formed in the insulating support plate as a receiving recess to receive the insulating slot. Of course, the insulating groove may be fixed to the insulating wale by using a bolt instead of providing the receiving recess on the insulating support structure.
For the fixed vacuum circuit breaker that awaits measuring, the mount top is equipped with vacuum circuit breaker fixed knot and constructs, and in this embodiment, vacuum circuit breaker fixed knot constructs for circuit breaker fixed plate 12, offers on the circuit breaker fixed plate 12 with the corresponding vacuum circuit breaker on the corresponding bolt mounting hole 13 of mounting structure, through wearing dress fastening bolt in order to fix vacuum circuit breaker and circuit breaker fixed plate 12 fixed Assembly. The removable assembly of the mode of circuit breaker fixed plate 12 through screw connection is on entablature 7, to the vacuum circuit breaker of different models, is equipped with the circuit breaker fixed plate 12 of corresponding multiple specification, and during concrete operation, to the model of the vacuum circuit breaker that will detect, at the corresponding circuit breaker fixed plate of mount top installation can. In other embodiments, the vacuum circuit breaker fixing structure may further include a fixing hole formed in the upper beam, and the vacuum circuit breaker to be tested is fixed by a hook or a tie.
In other embodiments, in order to stably fix the vacuum circuit breaker without considering the replaceable condition, the breaker fixing plate may be fixed on the top of the fixing frame by using a non-detachable connection manner such as welding, riveting, etc. Of course, when the strength of the insulating support structure is sufficient to support the insulating tank and the circuit breaker, the circuit breaker fixing structure may not be provided.
In order to apply high voltage to the static end of the vacuum circuit breaker for voltage withstand detection, a supporting conductive plate 14 is arranged in the insulating tank 1, and the supporting conductive plate 14 is used for being in conductive fit with the static end support of the vacuum circuit breaker to be detected. Regarding the arrangement mode of the supporting and conducting plate 14, in the embodiment, a stud extending in the up-down direction is arranged on the bottom of the insulating slot 1, the supporting and conducting plate 14 is slidably sleeved on the stud in the up-down direction, meanwhile, a compression spring is arranged between the supporting and conducting plate 14 and the bottom of the insulating slot, specifically, the compression spring is sleeved on the stud to realize the elastic floating assembly of the supporting and conducting plate 14 in the insulating slot 1, and further, in order to prevent the supporting and conducting plate 14 from being separated from the stud, a stop nut is screwed on the upper end of the stud.
When not pushed down, the position height of the upper surface of the supporting conductive plate 14 is higher than the position of the bottom of the leading-out part of the static end of the circuit breaker after the circuit breaker is fixed on the fixing frame 4, therefore, when the vacuum circuit breaker is installed on the fixing frame 3, the supporting conductive plate 14 can move downwards along with the vacuum circuit breaker under the pressure applied by the static leading-out end of the vacuum circuit breaker, and the pressure spring is compressed.
In other embodiments, the supporting and conducting plate may be fixed to the bottom of the insulating groove by a rubber seat, and the supporting and conducting plate is elastically floatingly assembled in the insulating groove in the up-down direction by elastic deformation of the rubber seat.
The detection device further comprises an external electrical element 15 in conductive connection with the support and conductive plate 14 for introducing an external voltage to pressurize the static end of the vacuum circuit breaker to be tested. In this embodiment, the external electrical component 15 is fixedly installed outside the insulating groove 1 through a sealing screw, a flexible conductive connection line 16 is disposed in the insulating groove 1, one end of the conductive connection line 16 is conductively connected with the supporting conductive plate 14, and the other end of the conductive connection line is conductively connected with the sealing screw for fixing the external electrical component 15. In other embodiments, the external electric component is not disposed on the insulating groove, but disposed on the insulating pillar, so as to facilitate fixing of the external electric component.
As shown in fig. 3, during the use, insert vacuum circuit breaker 2 to insulating bath 1 from top to bottom for vacuum circuit breaker 2's quiet end pushes down and supports current conducting plate 14 and fix vacuum circuit breaker 12 on the circuit breaker fixed plate, because vacuum circuit breaker 2 realizes and supports current conducting plate 14's in the time of installing on the support in the in close contact with, consequently, only need with the high-voltage line connection can realize adding electricity to circuit breaker 2 on plus electric component 15, whole process is simple convenient. In addition, the insulating liquid in the insulating groove 1 can cover the supporting and conducting plate 14 and the connecting structure between the conducting connecting wire 16 and the external electric element 15, so that the insulating effect with the outside air is realized, and a sealed air chamber in the medium-pressure gas-filled cabinet is simulated.
The embodiment 2 of the withstand voltage testing device for the vacuum interrupter in the present invention is different from the embodiment 1 in that the withstand voltage testing device for the vacuum interrupter in the embodiment 1 includes a bracket, and an insulating tank and a vacuum interrupter to be tested are installed on the bracket. In this embodiment, no longer set up the support among the withstand voltage detection device of vacuum circuit breaker, the insulating bath is placed on corresponding insulating platform or sets up insulating landing leg at the insulating bath bottom to guarantee to have sufficient insulating distance between insulating bath and the bottom surface. Further, in order to ensure that the vacuum circuit breaker has a stable state in the whole withstand voltage detection process, a corresponding stabilizing device is arranged, for example, a righting rod is arranged beside the withstand voltage detection device of the vacuum circuit breaker. Of course, if the vacuum circuit breaker is placed in the insulating groove, the vacuum arc extinguish chamber can be directly ensured to be in a stable state, and the vacuum circuit breaker can be directly placed in the insulating groove for a withstand voltage test.
The embodiment 3 of the withstand voltage detecting device of the vacuum interrupter in the invention is different from the embodiment 1 in that the bracket in the embodiment 1 comprises a fixed frame, an insulating bottom support and a platform. In this embodiment, no longer set up insulating collet and platform, for satisfying the insulating distance requirement, with the relatively higher some of insulating stand setting to improve the mounting height in insulating bath.
Claims (6)
1. The utility model provides a withstand voltage detection device of vacuum circuit breaker which characterized in that: the method comprises the following steps:
the insulating tank is used for containing insulating liquid for the immersion of the vacuum circuit breaker to be tested;
the supporting conductive plate is arranged in the insulating groove and is used for supporting and conducting matching with a static end leading-out part of the vacuum circuit breaker to be tested;
the external electric element is electrically connected with the supporting and conducting plate and used for introducing external voltage so as to electrify the static end leading-out part of the vacuum circuit breaker to be tested;
the supporting and conducting plate is elastically arranged in the insulating groove in a floating manner along the up-down direction, and can move downwards along with the vacuum circuit breaker under the pressure applied by the leading-out part of the vacuum circuit breaker;
the vacuum circuit breaker withstand voltage detection device also comprises a support, wherein the insulation groove is supported and assembled on the support through an insulation support structure, and a vacuum circuit breaker fixing structure is arranged at the top of the support and used for fixing the vacuum circuit breaker to be detected when a static end leading-out part of the vacuum circuit breaker to be detected is in conductive contact with the support conductive plate;
when the vacuum circuit breaker is used, the part of the vacuum circuit breaker which is in conductive fit with the supporting conductive plate is immersed in insulating liquid to realize insulation with outside air so as to simulate a sealed air chamber in a medium-pressure gas-filled cabinet;
the circuit breaker fixing structure comprises a circuit breaker fixing plate arranged at the top of the bracket, the circuit breaker fixing plate is provided with a bolt mounting hole for penetrating and mounting a fastening bolt so as to fixedly assemble the vacuum circuit breaker and the circuit breaker fixing plate, and the circuit breaker fixing plate can be detachably assembled at the top of the bracket;
the support comprises a fixing frame, the fixing frame comprises a plurality of insulating stand columns distributed circumferentially around an insulating groove and an insulating transverse frame fixedly assembled with the insulating stand columns, the insulating transverse frame comprises an insulating transverse support, the insulating support structure comprises the insulating stand columns and the insulating transverse frame, and the insulating groove support is placed on the insulating transverse support;
and an avoiding port for the vacuum circuit breaker to be tested to pass through is arranged in the middle of the circuit breaker fixing plate.
2. The withstand voltage detecting apparatus of vacuum circuit breaker according to claim 1, characterized in that: and a pressure spring extending in the vertical direction is arranged in the insulating groove, and the top end of the pressure spring is in press fit with the top of the supporting conductive plate, so that the supporting conductive plate is elastically and floatingly arranged in the insulating groove.
3. The withstand voltage detecting apparatus of vacuum circuit breaker according to claim 1, characterized in that: the external electric part is fixedly installed on the outer side of the insulating groove through a sealing screw structure, a flexible conductive connecting wire is arranged in the insulating groove, one end of the conductive connecting wire is in conductive connection with the supporting conductive plate, and the other end of the conductive connecting wire is in conductive connection with the external electric part.
4. The withstand voltage detecting apparatus of vacuum circuit breaker according to claim 1, characterized in that: the insulation supporting structure comprises an accommodating concave part, and the insulation groove is clamped in the accommodating concave part in an inosculating way.
5. The withstand voltage detecting apparatus of vacuum circuit breaker according to claim 4, characterized in that: the insulating support structure comprises two insulating cross braces which are arranged in parallel, and the accommodating concave parts are accommodating grooves which are respectively arranged on the two insulating cross braces.
6. The withstand voltage detecting apparatus of vacuum circuit breaker according to claim 1, characterized in that: the support also comprises an insulating bottom support and a platform, and the fixing frame is supported and placed on the platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911090266.9A CN110824202B (en) | 2019-11-08 | 2019-11-08 | Withstand voltage detection device of vacuum circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911090266.9A CN110824202B (en) | 2019-11-08 | 2019-11-08 | Withstand voltage detection device of vacuum circuit breaker |
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| CN110824202A CN110824202A (en) | 2020-02-21 |
| CN110824202B true CN110824202B (en) | 2022-04-15 |
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| CN111352027A (en) * | 2020-03-23 | 2020-06-30 | 云南电网有限责任公司电力科学研究院 | Aerify cabinet circuit breaker insulation test device |
| CN117741364B (en) * | 2023-12-20 | 2024-06-04 | 江苏米格电气集团股份有限公司 | Magnetic control column vacuum circuit breaker detection system and detection method |
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