CN219715654U - Photovoltaic direct current fault arc simulation experiment device - Google Patents
Photovoltaic direct current fault arc simulation experiment device Download PDFInfo
- Publication number
- CN219715654U CN219715654U CN202320826266.6U CN202320826266U CN219715654U CN 219715654 U CN219715654 U CN 219715654U CN 202320826266 U CN202320826266 U CN 202320826266U CN 219715654 U CN219715654 U CN 219715654U
- Authority
- CN
- China
- Prior art keywords
- fixed
- electrode
- direct current
- simulation experiment
- current fault
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004088 simulation Methods 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 60
- 238000012360 testing method Methods 0.000 claims abstract description 39
- 239000007769 metal material Substances 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 238000010248 power generation Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 206010000369 Accident Diseases 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000003656 Electric Burns Diseases 0.000 description 1
- 208000013935 Electric injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 238000011835 investigation 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
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model provides a photovoltaic direct current fault arc simulation experiment device, wherein a movable electrode can move close to or far away from a fixed electrode, a material platform is arranged between a movable seat and a fixed seat and below the fixed electrode and the movable electrode and used for supporting a material platform of a material tray, and the material platform can horizontally slide towards the periphery of a table top to extend out or integrally retract to the table top; the fixed seat and the movable seat can be respectively fixedly connected with a conductive rod supporting arm, the conductive rod supporting arm is provided with a containing groove for embedding the conductive rod at the corresponding side, the fixed electrode and the movable electrode are respectively fixed with one end of the conductive rod at the corresponding side through clamping blocks and are electrically connected, and the other ends of the two conductive rods are respectively fixed through the clamping blocks and are electrically connected with the corresponding second fixed electrode and second movable electrode. The utility model has simple structure and reliable performance, can select two internal and external test modes according to the combustion characteristics of the tested materials, avoids polluting a test bench, and improves the safety.
Description
Technical Field
The utility model belongs to the technical field of fault arc simulation tests, and particularly relates to a photovoltaic direct-current fault arc simulation experiment device.
Background
Under the goal of carbon-to-peak carbon neutralization, the photovoltaic power generation system is developed at a high speed, and meanwhile, fire accidents of the photovoltaic power generation system occur, and according to fire cause analysis of 187 accident cases in the last 5 years, the main fire cause of the photovoltaic power generation system is direct current arc faults caused by internal short circuit or loosening of connecting pieces. Current research on dc arc faults within photovoltaic power generation systems is less, and in particular, analysis on arc ignition capability is much less. In order to develop the analysis of the ignition capability of the direct current arc of the photovoltaic power generation system, a photovoltaic direct current fault arc simulation experiment device is specially developed, repeated and stable simulation of the direct current arc is realized, meanwhile, the ignition time and the ignition probability of the direct current arc to different tested materials are tested, and basic data support is provided for the prevention and control of the direct current arc fault of the photovoltaic power generation system and the investigation of fire causes.
Disclosure of Invention
In view of this, the utility model provides a photovoltaic direct current fault arc simulation experiment device, which specifically comprises:
the photovoltaic direct current fault arc simulation experiment device comprises a test table and a main shield, wherein a fixed electrode of the test table is fixed on a fixed seat, a movable electrode is fixed on a movable seat, and the movable electrode can move close to or far away from the fixed electrode; the fixed seat and the movable seat can be respectively fixedly connected with a conductive rod supporting arm, the conductive rod supporting arm is provided with a containing groove for embedding the conductive rod at the corresponding side, the fixed electrode and the movable electrode are respectively fixed with one end of the conductive rod at the corresponding side through clamping blocks and are electrically connected, and the other ends of the two conductive rods are respectively fixed through the clamping blocks and are electrically connected with the corresponding second fixed electrode and second movable electrode.
The fixed seat is fixed on the table top of the test table, a sliding rail and sliding block pair is arranged between the movable seat and the table top, the screw rod passes through the movable seat and is in threaded connection with a screw nut fixed on the movable seat, one end of the screw rod is rotationally connected with the fixed seat, and the other end of the screw rod is coaxially and fixedly connected with a handle.
The lead screw is also coaxially fixedly connected with a driven wheel, a servo motor is fixed in the test bench, the servo motor is coaxially connected with a driving wheel in a driving way, and the driving wheel is in transmission connection with the driven wheel through a transmission belt.
The two ends below the material platform are respectively provided with a supporting base and a limiting supporting plate which are fixed on the table top, a sliding rail and sliding block pair is arranged between the material platform and the supporting base, and the limiting supporting plate can support and limit the corresponding end part of the material platform.
The upper surface of the material platform is provided with a limiting groove for limiting the material containing tray, and the limiting groove forms two crisscross grooves at the end part and the middle part of the material platform.
The clamping block is made of conductive metal material and is provided with two clamping holes which are perpendicular to each other, corresponding electrodes and conductive rods are respectively clamped, and the conductive rods are fastened through bolts, so that the conductive rods are fixedly connected with the corresponding electrodes and are electrically connected.
The outer hanging cover can be detachably hung on the main protective cover.
Two hanging pieces for hanging are fixedly arranged on two sides of the upper end of the outer hanging cover, and hanging slotted holes are correspondingly formed in the main protecting cover.
The main shield is provided with a positioning pin hole below each hanging slot hole, and the outer hanging shield is fixedly connected with a positioning pin which is used for being correspondingly inserted with the positioning pin hole.
The main shield is made of transparent high-temperature resistant materials, and is provided with a first slot hole and a second slot hole for the material platform and the conductive rod to pass through.
The utility model has simple structure and reliable performance, can select two internal and external test modes according to the combustion characteristics of the tested materials, avoids polluting a test bench, and improves the safety.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a schematic perspective view of a test stand and a main shield and a remote controller according to the present utility model;
FIG. 2 is a schematic perspective view of the main shield separated from the test stand;
FIG. 3 is a schematic perspective view of a test mechanism of the test stand;
FIG. 4 is a schematic perspective view of a material platform and a material tray;
FIG. 5 is a schematic perspective view of a conductive rod support arm;
FIG. 6 is a schematic perspective view of a clamping block;
FIG. 7 is a schematic view showing the combination of the outer shield and the main shield;
FIG. 8 is a schematic perspective view of an outer housing;
fig. 9 is a schematic perspective view showing the overhanging test state of the test mechanism.
Reference numerals in the drawings:
a test bench 1; a table top 10; a remote controller 2;
a main shield 3; a first slot 31; a second slot 32; a hooking slot 33; a registration pin hole 34;
a handle 4;
a lead screw 50; a nut 51; a movable seat 52; a slide rail slider pair 53; a fixing base 54; driven wheel 55; a capstan 56; a servo motor 57;
a fixed electrode 61; a moving electrode 62; a second fixed electrode 61a; a second moving electrode 62a;
clamping blocks 71, 71a; clamping holes 711, 712; a conductive rod support arm 72; a receiving groove 721; a conductive rod 73;
a material platform 81; a limit groove 810; a support base 82; a slide rail slider pair 83; a limit support plate 84; a material tray 85;
an outer hanging cover 9; a hanging piece 91; and a locating pin 92.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The utility model will be described in detail below with reference to the drawings in connection with embodiments.
As shown in the figure, the photovoltaic direct current fault arc simulation experiment device comprises a test board 1 and a main shield 3, wherein the test board 1 comprises a test mechanism, and in the test process, the main shield 3 is arranged on the test board 1 to cover the test mechanism so as to play a certain protection role.
The main shield 3 can be made of transparent high-temperature resistant materials so as to facilitate observation.
Referring to fig. 3, the test mechanism includes a fixed electrode 61 and a movable electrode 62, the fixed electrode 61 is fixed on a fixed seat 54, the movable electrode 62 is fixed on a movable seat 52, the fixed seat 54 is fixed on a table top 10 of the test table 1, a sliding rail sliding block pair 53 is arranged between the movable seat 52 and the test table top 10, a screw rod 50 passes through the movable seat 52 and is in threaded connection with a screw nut 51 fixed on the movable seat 52, one end of the screw rod 50 is rotationally connected with the fixed seat through a bearing, the other end is coaxially and fixedly connected with a handle 4, the rotating handle 4 is driven by the screw rod screw nut pair, and the movable seat 52 can slide to be close to or far away from the fixed seat 54 under the sliding guide of the sliding rail sliding block pair 53, so that the movable electrode 62 can move to be close to or far away from the fixed electrode 61.
A material platform 81 is arranged between the movable seat 52 and the fixed seat 54 and below the fixed electrode 61 and the movable electrode 62, a supporting base 82 and a limiting supporting plate 84 which are fixed on the table top 10 are respectively arranged at two ends below the material platform 81, a sliding rail sliding block pair 83 is arranged between the material platform 81 and the supporting base 82, the material platform 81 can be horizontally slid and stretched out to the periphery of the table top 10 or integrally retracted to the position above the table top 10 by manually pulling the material platform 81, and when the material platform is integrally retracted to the position above the table top 10, the limiting supporting plate 84 can play a role in supporting and limiting the corresponding end part of the material platform 81.
As shown in fig. 4, the upper surface of the material platform 81 is provided with a limit groove 810 for limiting the material tray 85, and the limit groove 810 forms two crisscross grooves at the end and the middle of the material platform 81, so that the material tray can be placed at the two places respectively, and two modes of vertical or horizontal placement can be adopted according to experimental requirements.
Referring to fig. 5 and 9, the fixed base 54 and the movable base 52 are respectively fixedly connected with a conductive rod supporting arm 72, the conductive rod supporting arm 72 is provided with a receiving groove 721 for embedding the conductive rod 73 on the corresponding side, the fixed electrode 61 and the movable electrode 62 are respectively fixed and electrically connected with one end of the conductive rod 73 on the corresponding side through the clamping block 71, and the other ends of the two conductive rods are respectively fixed and electrically connected with the corresponding second fixed electrode 61a and the corresponding second movable electrode 62a through the clamping block.
Referring to fig. 6, the clamping block 71 is made of conductive metal material, and has two vertical clamping holes 711 and 712 for clamping the corresponding electrode and the conductive rod, respectively, and fastening the conductive rod with the corresponding electrode by bolts, thereby realizing the fixed connection and electrical connection of the conductive rod and the corresponding electrode.
In order to match the overhanging of the material platform 81 and the wire rod 73, as shown in fig. 1 and 2, two slots are correspondingly formed in the main shield 3: a first slot 31; a second slot 32.
The utility model can realize two test modes:
a built-in test mode is shown in figures 1 to 3, namely, a material platform is integrally arranged in a main shield, a tested material on the material platform and a material tray for containing the tested material are also arranged in the main shield, and the test mode is suitable for the conditions that the combustion of the tested material after ignition is gentle and the range is controllable, and the tested material is basically not sputtered outside the material tray so as to pollute the test board, a test structure thereof and the main shield.
The other is an external test mode as shown in fig. 7 and 9, namely, the material platform slides to extend out of the main shield, the tested material and the material tray containing the tested material are placed on the material platform outside the main shield, the mode is suitable for the situation that the tested material burns a comparative distance after ignition and possibly is sputtered outside the material tray, and the test structure is prevented from being polluted.
Referring to fig. 7 and 8, in order to provide safety protection for the external test mode, the utility model is further provided with an external hanging cover 9, wherein the external hanging cover 9 can be detachably hung on the main shield 3 to cover the material tray, the tested material, the second fixed electrode 61a and the second movable electrode 62a under the main shield. Preferably, the outer hanging cover can be made of transparent high-temperature resistant materials so as to facilitate observation.
Specifically, two hanging tabs 91 for hanging are fixedly arranged on two sides of the upper end of the outer hanging cover 9, and hanging slots 33 are correspondingly formed in the main shield 3, so that the outer hanging cover is convenient to hang and detach.
Preferably, in order to enhance the hanging stability, a positioning pin hole 34 is formed below each hanging slot hole 33 of the main shield, and a positioning pin 92 for correspondingly plugging with the positioning pin hole 34 is fixedly connected to the outer hanging cover 9 so as to prevent the outer hanging cover 9 from longitudinally moving under the action of deflagration gas.
To further enhance safety and avoid electric injury or burn of operators, the test bench 1 may be further equipped with a remote controller 2 connected by a cable (not shown) to realize remote control, and a touch screen may be disposed on the remote controller 2.
In order to realize remote control in a matching way, as shown in fig. 3, the lead screw 50 is also coaxially and fixedly connected with a driven wheel 55, a servo motor 57 is fixed in the test bench 1, the servo motor 57 is coaxially and drivably connected with a driving wheel 56, the driving wheel 56 and the driven wheel 55 are in transmission connection through a transmission belt (not shown in the figure), and the approach and the separation of the two electrodes are realized by replacing a hand-operated mode through remote line control.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (10)
1. The photovoltaic direct current fault arc simulation experiment device comprises a test bench (1) and a main shield (3), wherein a fixed electrode (61) of the test bench (1) is fixed on a fixed seat, a movable electrode (62) is fixed on a movable seat (52), and the movable electrode (62) can move close to or far away from the fixed electrode (61), and the photovoltaic direct current fault arc simulation experiment device is characterized in that a material platform (81) for supporting a material tray (85) is arranged between the movable seat and the fixed seat and below the fixed electrode and the movable electrode, and can horizontally slide to the periphery of a table top to extend or integrally retract to the table top; the fixed seat (54) and the movable seat (52) can be fixedly connected with a conductive rod supporting arm (72) respectively, the conductive rod supporting arm (72) is provided with a containing groove (721) for embedding a conductive rod (73) at the corresponding side, the fixed electrode and the movable electrode are respectively fixed and electrically connected with one end of a conductive rod at the corresponding side through clamping blocks (71), and the other ends of the two conductive rods are respectively fixed and electrically connected with a corresponding second fixed electrode (61 a) and a corresponding second movable electrode (62 a) through the clamping blocks.
2. The photovoltaic direct current fault arc simulation experiment device according to claim 1, wherein a fixed seat (54) is fixed on a table top (10) of the test table, a sliding rail sliding block pair is arranged between a movable seat (52) and the table top, a screw rod (50) penetrates through the movable seat and is in threaded connection with a screw nut (51) fixed on the movable seat, one end of the screw rod is rotatably connected with the fixed seat, and the other end of the screw rod is coaxially fixedly connected with a handle (4).
3. The photovoltaic direct current fault arc simulation experiment device according to claim 2, wherein the lead screw is further coaxially fixedly connected with a driven wheel (55), a servo motor (57) is fixedly arranged in the test bench, the servo motor is coaxially connected with a driving wheel (56) in a driving mode, and the driving wheel is in driving connection with the driven wheel through a driving belt.
4. The photovoltaic direct current fault arc simulation experiment device according to claim 1, wherein a supporting base (82) and a limiting supporting plate (84) which are fixed on the table top are respectively arranged at two ends below the material platform, a sliding rail sliding block pair is arranged between the material platform and the supporting base, and the limiting supporting plate (84) can support and limit the corresponding end part of the material platform.
5. The photovoltaic direct current fault arc simulation experiment device according to claim 1, wherein a limiting groove (810) for limiting a material containing tray is formed in the upper surface of the material platform, and two crisscross grooves are formed in the end portion and the middle portion of the material platform by the limiting groove.
6. The photovoltaic direct current fault arc simulation experiment apparatus according to claim 1, wherein the clamping block (71) is made of conductive metal material, and is provided with two clamping holes perpendicular to each other, and is used for clamping the corresponding electrode and the conductive rod respectively, and fastening the conductive rod through bolts, so that the conductive rod is fixedly connected and electrically connected with the corresponding electrode.
7. The photovoltaic direct current fault arc simulation experiment device according to claim 1, further comprising an external hanging cover (9) which can be detachably hung on the main protection cover.
8. The photovoltaic direct current fault arc simulation experiment device according to claim 7, wherein two hanging pieces for hanging are fixedly arranged on two sides of the upper end of the outer hanging cover, and hanging slot holes are correspondingly formed in the main cover.
9. The photovoltaic direct current fault arc simulation experiment device according to claim 8, wherein a positioning pin hole is formed below each hanging slot hole of the main shield, and a positioning pin for correspondingly inserting and connecting with the positioning pin hole is fixedly connected to the outer shield.
10. The photovoltaic direct current fault arc simulation experiment device according to claim 1, wherein the main shield is made of transparent high-temperature-resistant materials, and is provided with a first slot hole and a second slot hole for the material platform and the conductive rod to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320826266.6U CN219715654U (en) | 2023-04-14 | 2023-04-14 | Photovoltaic direct current fault arc simulation experiment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320826266.6U CN219715654U (en) | 2023-04-14 | 2023-04-14 | Photovoltaic direct current fault arc simulation experiment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219715654U true CN219715654U (en) | 2023-09-19 |
Family
ID=87981223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320826266.6U Active CN219715654U (en) | 2023-04-14 | 2023-04-14 | Photovoltaic direct current fault arc simulation experiment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219715654U (en) |
-
2023
- 2023-04-14 CN CN202320826266.6U patent/CN219715654U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN219715654U (en) | Photovoltaic direct current fault arc simulation experiment device | |
| CN115754616A (en) | Power equipment insulation performance diagnosis and detection system and diagnosis and detection method | |
| CN210427695U (en) | Electrical performance testing device of charger | |
| CN218272675U (en) | Withstand voltage detection device of ammeter | |
| CN203444025U (en) | Broke wire and arc test apparatus | |
| CN115460108A (en) | Test system for power communication network | |
| CN209215494U (en) | A kind of movable fixture for the test of multicolumn lightning arrester connected in parallel current distribution | |
| CN113917292B (en) | Insulation performance simulation detection device for high-voltage direct-current transmission line | |
| CN207964885U (en) | A kind of improved power high voltage test connection device | |
| CN117790141B (en) | Multifunctional transformer voltage test device and control method thereof | |
| CN220105191U (en) | On-off protective device | |
| CN219417646U (en) | Gas discharge tube testing device | |
| CN114325064A (en) | Electricity testing equipment | |
| CN215263905U (en) | Efficient stator detection device | |
| CN219552605U (en) | High-voltage coil electric inspection machine | |
| CN220626631U (en) | Auxiliary tool for wire harness conduction testing device | |
| CN219842528U (en) | Automatic change electric inspection equipment | |
| CN220171168U (en) | Intelligent surge protector production testing device | |
| CN213581265U (en) | Motor high-voltage testing machine | |
| CN218905110U (en) | Clamping device for air switch test | |
| CN216526257U (en) | Standard device applied to tester for detecting breakdown voltage of winding wire | |
| CN117434490B (en) | Mutual inductor test sorting unit | |
| CN216720190U (en) | Lithium battery clamp module lifting power supply mechanism | |
| CN219504708U (en) | Equipotential tester processing production is with equipment platform | |
| CN214953662U (en) | Short-circuit equipment of distribution transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |