CN114295970A - High-altitude simulation test system for direct-current air circuit breaker - Google Patents
High-altitude simulation test system for direct-current air circuit breaker Download PDFInfo
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- CN114295970A CN114295970A CN202111645538.4A CN202111645538A CN114295970A CN 114295970 A CN114295970 A CN 114295970A CN 202111645538 A CN202111645538 A CN 202111645538A CN 114295970 A CN114295970 A CN 114295970A
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- 238000012360 testing method Methods 0.000 title claims abstract description 56
- 238000004088 simulation Methods 0.000 title claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 20
- 239000004020 conductor Substances 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 13
- 238000009413 insulation Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The invention relates to a high-altitude simulation test system of a direct-current air circuit breaker, which comprises a shell, wherein the shell comprises a base, the base comprises a bottom bracket and a chassis arranged on the base bracket, the upper end surface of the chassis is also provided with an outer cover, and the outer cover and the chassis are matched together to form a test cavity; the workpiece fixing unit is arranged on the chassis and comprises a fixed seat arranged on the upper end surface of the chassis, and the fixed seat is fixed on the chassis through bolts; and the test unit is arranged on the chassis and comprises an incoming and outgoing line assembly, a secondary wiring assembly, an explosion-proof assembly and a pressure adjusting assembly. The invention has the advantages that: through the mutual matching among the shell, the workpiece fixing unit and the testing unit, equivalent adjustment can be carried out according to air parameters corresponding to high altitude, the product test parameters are accurate, qualitative and quantitative parameterization conclusions can be given, and the product design and use are more economical and reliable.
Description
Technical Field
The invention relates to the field of direct current air circuit breaker testing, in particular to a high altitude simulation test system for a direct current air circuit breaker.
Background
The high altitude test simulator is a simulation test device for air insulation switches, can be applied to switches of various alternating current and direct current air insulation media, can simulate various pressure requirements under 0MPa (vacuum) -0.1MPa (standard atmospheric pressure) by equivalent gas absolute pressure, and realizes test verification of insulation, temperature rise, disconnection and the like under various high altitude working conditions.
For insulation tests, the economy of domestic plain areas is generally tested according to parameters corrected by the altitude, and products are influenced by a local electric field after the voltage is increased, so that the products are more seriously checked. For the breaking test, the manufacturer generally gives the capacity reduction use suggestion, and no effective test method proves. The plateau area is limited by the altitude, only can be used for local high-altitude tests, cannot be subjected to parametric adjustment, is influenced by the geographical position, and is high in transportation and testing personnel cost.
Disclosure of Invention
The invention aims to provide a high-altitude simulation test system of a direct-current air circuit breaker, which can perform equivalent adjustment according to air parameters corresponding to high altitude.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a direct current air circuit breaker high altitude simulation test system which innovation point lies in: comprises that
The shell comprises a base, the base comprises a bottom support and a chassis arranged on the base support, an outer cover is further arranged on the upper end face of the chassis, and the outer cover and the chassis are matched together to form a test cavity;
the workpiece fixing unit is arranged on the chassis and comprises a fixed seat arranged on the upper end surface of the chassis, and the fixed seat is fixed on the chassis through bolts;
the testing unit is arranged on the chassis and comprises an incoming and outgoing line assembly, a secondary wiring assembly, an explosion-proof assembly and a pressure adjusting assembly;
the wire inlet and outlet assembly comprises a pair of wire inlet seats and a wire outlet seat which are distributed in parallel, a chassis is provided with a first through hole and a second through hole for accommodating the wire inlet seat and installing the wire outlet seat, the wire inlet seat comprises a wire inlet basin, the wire inlet basin is fixed on the bottom end face of the chassis through a wire inlet basin flange, a wire inlet basin conductor is installed in the wire inlet basin, the wire outlet seat comprises a wire outlet basin, the wire outlet basin is fixed on the bottom end face of the chassis through a wire outlet basin flange, and a wire outlet basin conductor is installed in the wire outlet basin;
the secondary wiring assembly comprises a secondary wiring terminal base, a third through hole for accommodating the installation of the secondary wiring terminal base is formed in the chassis, the secondary wiring terminal base is arranged in the third through hole, a secondary wiring terminal board is installed on the secondary wiring terminal base, a plurality of wiring terminals are installed on the secondary wiring terminal board, and corresponding electrical specification marks are arranged on the secondary wiring terminal board and beside the wiring terminals;
the explosion-proof assembly comprises an explosion-proof seat, an explosion-proof sheet is arranged in the explosion-proof seat, a fourth through hole corresponding to the explosion-proof sheet is formed in the chassis, and the explosion-proof seat is arranged in the third through hole;
the pressure adjusting component comprises a pressure adjusting interface arranged on the chassis, the top end of the pressure adjusting interface extends out of the chassis and is communicated with the test cavity, and the bottom end of the pressure adjusting interface is connected with the vacuum pump.
Further, the bottom support is a cuboid frame structure formed by jointly connecting a plurality of transverse plates, longitudinal plates and vertical plates, the transverse plates, the longitudinal plates and the vertical plates are corner plates, a reinforcing support is further arranged at the middle position of the bottom support, the reinforcing support is an I-shaped support formed by jointly connecting an upper reinforcing plate, a lower reinforcing plate and an intermediate connecting plate, the upper reinforcing plate and the lower reinforcing plate are U-shaped plates, and the intermediate connecting plate is an I-shaped structural plate formed by jointly connecting a pair of U-shaped plates.
Further, the dustcoat includes a dustcoat main part, and this dustcoat main part is the hollow cylinder structure of the equal open-ended in both ends about one, is connected with an upper cover on the top of dustcoat main part, the upper cover is the spherical segment form, is connected with the linkage segment of an annular form on the circumference outer wall of the bottom of dustcoat main part, and this linkage segment is fixed mutually with the chassis through the cooperation of several bolt, nut.
Furthermore, lug groups are further installed on the outer wall of the outer cover, the two lug groups are distributed on the outer wall of the outer cover in an up-down mode, and each lug group consists of a plurality of lugs distributed along the circumferential direction of the outer cover.
The invention has the advantages that: the simulation test system provided by the invention can perform equivalent adjustment according to the air parameters corresponding to high altitude through the mutual matching of the shell, the workpiece fixing unit and the test unit, has accurate product test parameters, and can give qualitative and quantitative parameterized conclusions, so that the product design and use are more economic and reliable.
The design of the shell is realized by matching the chassis with the outer cover, and by designing the structure of the outer cover and matching the outer cover main body, the upper end enclosure and the connecting section, a structure of a totally-enclosed tank body is formed, a foundation is provided for accurate adjustment of subsequent pressure, and inaccurate test results caused by leakage are avoided.
The pressure in the test cavity is adjusted by matching the pressure adjusting interface with the vacuum pump, so that the purpose of changing the pressure is achieved, and the altitude adjustment in a wide range is correspondingly realized.
The cooperation of explosion-proof seat and explosion-proof piece then is too big in order to can be in experimental cavity pressure, surpasss the upper limit for the explosion-proof piece can in time start, releases abnormal pressure, and the security performance is higher.
For the design of the wire inlet and outlet assembly and the secondary wiring assembly, the whole wiring is more flexible through the matching of the wire inlet seat, the wire outlet seat, the wire inlet basin, the wire outlet basin, the secondary wiring terminal board and the through holes on the chassis.
The design of bottom support adopts the structure of the cuboid frame that the scute formed to and the cooperation of the reinforcing support of the I shape that the U-shaped board constitutes, improved the structural strength of whole bottom support, avoided whole bottom support overweight again.
For the design of the lifting lug groups on the outer cover, the subsequent lifting movement of the outer cover is facilitated by the matching of the upper and lower lifting lug groups.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic diagram of a high-altitude simulation test system of a dc air circuit breaker according to the present invention.
Fig. 2 is a front view of a high-altitude simulation test system of a dc air circuit breaker according to the present invention.
Fig. 3 is a schematic view of a chassis in the present invention.
Fig. 4 is a top view of the chassis of the present invention.
Fig. 5 is a bottom view of the chassis of the present invention.
Detailed Description
The following examples are presented to enable one of ordinary skill in the art to more fully understand the present invention and are not intended to limit the scope of the embodiments described herein.
The high-altitude simulation test system for the direct current air circuit breaker shown in figures 1-5 comprises
The shell comprises a base, the base comprises a bottom support 1 and a chassis 2 installed on the base support 1, an outer cover is further arranged on the upper end face of the chassis 2, and the outer cover and the chassis 2 are matched together to form a test cavity.
The bottom support 1 is a cuboid frame structure formed by jointly connecting a plurality of transverse plates, longitudinal plates and vertical plates, the transverse plates, the longitudinal plates and the vertical plates are corner plates, a reinforcing support 3 is further arranged at the middle position of the bottom support 1, the reinforcing support 3 is an I-shaped support formed by jointly connecting an upper reinforcing plate, a lower reinforcing plate and an intermediate connecting plate, the upper reinforcing plate and the lower reinforcing plate are U-shaped plates, and the intermediate connecting plate is an I-shaped structural plate formed by jointly connecting a pair of U-shaped plates. The design of bottom support 1 adopts the structure of the cuboid frame that the scute formed to and the cooperation of the reinforcing support 3 of the I shape that the U-shaped board constitutes, improved the structural strength of whole bottom support 1, avoided whole bottom support 1 overweight again, and lead to removing inconveniently.
The dustcoat includes a dustcoat main part 3, and this dustcoat main part 3 is the equal open-ended hollow cylinder structure in both ends about one, is connected with an upper cover 4 on the top of dustcoat main part 3, and upper cover 4 is the spherical segment form, is connected with the linkage segment 5 of an annular form on the circumference outer wall of the bottom of dustcoat main part 3, and this linkage segment 5 is fixed mutually with chassis 2 through the cooperation of several bolt, nut. To the design of shell, adopt the cooperation of chassis 2 and dustcoat to design the structure of dustcoat, adopt the cooperation of dustcoat main part 3, upper cover 4, linkage segment 5, thereby formed the structure of a totally closed jar of body, provide the basis for the accurate adjustment of follow-up pressure, avoid leading to the test result inaccurate because of revealing.
Still install lug group on the outer wall of dustcoat main part 3, lug group is total two, distributes on the outer wall of dustcoat from top to bottom, and every lug group comprises the lug 6 that the several distributes along the circumferencial direction of dustcoat main part 3 jointly. For the design of the lifting lug groups on the outer cover, the subsequent lifting movement of the outer cover is facilitated by the matching of the upper and lower lifting lug groups.
The workpiece fixing unit is arranged on the chassis 2 and comprises a fixed seat arranged on the upper end face of the chassis 2, the fixed seat is fixed on the chassis 2 through bolts, and a workpiece support to be detected is fixed on the fixed seat.
And the testing unit is arranged on the chassis and comprises an incoming and outgoing line assembly, a secondary wiring assembly, an explosion-proof assembly and a pressure adjusting assembly.
The wire inlet and outlet assembly comprises a pair of wire inlet seats and a wire outlet seat which are distributed in parallel, a first through hole and a second through hole for accommodating the wire inlet seats and the wire outlet seats are formed in the chassis, the wire inlet seats comprise wire inlet basins 11, the wire inlet basins 11 are fixed on the bottom end face of the chassis 2 through wire inlet basin flanges, the wire inlet basin flanges are fixed with the chassis 2 through bolts, the outer contour lines of the integral wire inlet basins 11 are bowl-shaped, wire inlet basin conductors 12 are installed in the wire inlet basins 11, the wire outlet seats comprise wire outlet basins 13, the wire outlet basins 13 are fixed on the bottom end face of the chassis 2 through wire outlet basin flanges, the wire outlet basin flanges are fixed with the chassis 2 through bolts, the outer contour lines of the integral wire outlet basins 13 are bowl-shaped, and wire outlet basin conductors 14 are installed in the wire outlet basins 13. For the design of the wire inlet and outlet assembly, the wire inlet basin 11, the wire outlet basin 13, the wire inlet basin conductor 12, the wire outlet basin conductor 14 and the through holes on the chassis 2 are matched, so that the whole wiring is more flexible.
The secondary wiring subassembly includes secondary terminal seat 16, it has the third through-hole of holding the installation of secondary terminal seat 16 to open simultaneously on chassis 2, secondary terminal seat 16 is arranged in the third through-hole, and the mode through the bolt is fixed mutually with chassis 2, install secondary terminal board on secondary terminal seat 16, install a plurality of lugs 15 on the secondary terminal board, the side that lies in each lug 15 simultaneously on secondary terminal board still all is provided with the electric specification sign that corresponds, in order to make things convenient for the wiring of follow-up different specifications. For the design of the secondary wiring assembly, the whole wiring is more flexible through the matching of the secondary wiring terminal base 16, the secondary wiring terminal board, the wiring head 15 and the through hole on the chassis 2.
The explosion-proof assembly comprises an explosion-proof seat 17, the explosion-proof seat 17 is fixed on the chassis 2 through bolts, an explosion-proof sheet 18 is installed in the explosion-proof seat 17, meanwhile, a fourth through hole corresponding to the explosion-proof sheet 18 is formed in the chassis 2, and the explosion-proof seat 17 is installed in the third through hole. The cooperation of explosion-proof seat 17 and explosion-proof piece 18 is then in order to be able to be in the experimental cavity internal pressure too big, surpass the upper limit for explosion-proof piece 18 can in time start, releases abnormal pressure, and the security performance is higher.
The pressure regulating assembly comprises a pressure regulating interface 19 which is arranged on the chassis 2, the top end of the pressure regulating interface 19 extends out of the chassis 2 and is communicated with the test cavity, and the bottom end of the pressure regulating interface 19 is connected with the vacuum pump. The pressure in the test cavity is adjusted by the cooperation of the pressure adjusting interface 19 and the vacuum pump, so that the purpose of changing the pressure is achieved, and the altitude adjustment in a wide range is correspondingly realized.
The working principle is as follows: when testing, firstly, the direct current air circuit breaker to be tested is fixed on the fixed seat, then the incoming line and the outgoing line are respectively matched through the incoming line seat and the outgoing line seat, so that an external testing system is connected into the testing cavity from the outer side of the shell and is connected with the direct current air circuit breaker to be tested, and the secondary wiring terminal seat 16 is connected into the monitoring line of the control box and is used for transmitting monitoring signals.
During specific tests, when static tests such as temperature rise and insulation are carried out, an external test system is connected with a power supply for testing through the wire inlet basin conductor 12 and the wire outlet basin conductor 14, and the connector lug 15 is connected with a monitoring signal for detection;
when the test is carried out, the external test system is connected with a power supply for testing through the wire inlet basin conductor 12 and the wire outlet basin conductor 14, and the connector lug 15 is connected with a control box monitoring signal for operation and detection.
When an abnormal pressure occurs in the test process, in order to protect the test equipment and personal safety, when the pressure reaches the explosion point designed for the explosion-proof piece 18, the explosion-proof piece 18 is started to release the abnormal pressure.
The simulation test system provided by the invention can perform equivalent adjustment according to the air parameters corresponding to high altitude through the mutual matching of the shell, the workpiece fixing unit and the test unit, has accurate product test parameters, and can give qualitative and quantitative parameterized conclusions, so that the product design and use are more economic and reliable.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a direct current air circuit breaker high altitude simulation test system which characterized in that: comprises that
The shell comprises a base, the base comprises a bottom support and a chassis arranged on the base support, an outer cover is further arranged on the upper end face of the chassis, and the outer cover and the chassis are matched together to form a test cavity;
the workpiece fixing unit is arranged on the chassis and comprises a fixed seat arranged on the upper end surface of the chassis, and the fixed seat is fixed on the chassis through bolts;
the testing unit is arranged on the chassis and comprises an incoming and outgoing line assembly, a secondary wiring assembly, an explosion-proof assembly and a pressure adjusting assembly;
the wire inlet and outlet assembly comprises a pair of wire inlet seats and a wire outlet seat which are distributed in parallel, a chassis is provided with a first through hole and a second through hole for accommodating the wire inlet seat and installing the wire outlet seat, the wire inlet seat comprises a wire inlet basin, the wire inlet basin is fixed on the bottom end face of the chassis through a wire inlet basin flange, a wire inlet basin conductor is installed in the wire inlet basin, the wire outlet seat comprises a wire outlet basin, the wire outlet basin is fixed on the bottom end face of the chassis through a wire outlet basin flange, and a wire outlet basin conductor is installed in the wire outlet basin;
the secondary wiring assembly comprises a secondary wiring terminal base, a third through hole for accommodating the installation of the secondary wiring terminal base is formed in the chassis, the secondary wiring terminal base is arranged in the third through hole, a secondary wiring terminal board is installed on the secondary wiring terminal base, a plurality of wiring terminals are installed on the secondary wiring terminal board, and corresponding electrical specification marks are arranged on the secondary wiring terminal board and beside the wiring terminals;
the explosion-proof assembly comprises an explosion-proof seat, an explosion-proof sheet is arranged in the explosion-proof seat, a fourth through hole corresponding to the explosion-proof sheet is formed in the chassis, and the explosion-proof seat is arranged in the third through hole;
the pressure adjusting component comprises a pressure adjusting interface arranged on the chassis, the top end of the pressure adjusting interface extends out of the chassis and is communicated with the test cavity, and the bottom end of the pressure adjusting interface is connected with the vacuum pump.
2. The high altitude simulation test system of dc air circuit breaker according to claim 1, wherein: the bottom support is a cuboid frame structure formed by jointly connecting a plurality of transverse plates, longitudinal plates and vertical plates, the transverse plates, the longitudinal plates and the vertical plates are corner plates, a reinforcing support is further arranged at the middle position of the bottom support, the reinforcing support is an I-shaped support formed by jointly connecting an upper reinforcing plate, a lower reinforcing plate and an intermediate connecting plate, the upper reinforcing plate and the lower reinforcing plate are U-shaped plates, and the intermediate connecting plate is an I-shaped structural plate formed by jointly connecting a pair of U-shaped plates.
3. The high altitude simulation test system of dc air circuit breaker according to claim 1, wherein: the outer cover comprises an outer cover main body, the outer cover main body is a hollow cylinder structure with an upper end and a lower end which are both open, an upper end socket is connected to the top end of the outer cover main body, the upper end socket is in a truncated spherical shape, a connecting section in an annular shape is connected to the outer wall of the circumference of the bottom end of the outer cover main body, and the connecting section is fixed with the chassis through the matching of a plurality of bolts and nuts.
4. The high altitude simulation test system of dc air circuit breaker according to claim 1, wherein: the outer wall of the outer cover is also provided with two lifting lug groups, the two lifting lug groups are distributed on the outer wall of the outer cover from top to bottom, and each lifting lug group consists of a plurality of lifting lugs distributed along the circumferential direction of the outer cover.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111645538.4A CN114295970B (en) | 2021-12-30 | 2021-12-30 | High-altitude simulation test system of direct-current air circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111645538.4A CN114295970B (en) | 2021-12-30 | 2021-12-30 | High-altitude simulation test system of direct-current air circuit breaker |
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| CN114295970A true CN114295970A (en) | 2022-04-08 |
| CN114295970B CN114295970B (en) | 2024-05-28 |
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| CN114295970B (en) | 2024-05-28 |
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