CN204613351U - A kind of power frequency withstand test device for three-phase combined type type high pressure GIS - Google Patents
A kind of power frequency withstand test device for three-phase combined type type high pressure GIS Download PDFInfo
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- CN204613351U CN204613351U CN201520275470.9U CN201520275470U CN204613351U CN 204613351 U CN204613351 U CN 204613351U CN 201520275470 U CN201520275470 U CN 201520275470U CN 204613351 U CN204613351 U CN 204613351U
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Abstract
The utility model provides a kind of power frequency withstand test device for three-phase combined type type high pressure GIS, it is characterized in that: comprise one assembled from top to bottom by outlet casing tube assembly, single-phase insulating basin, tank body and three phase isolated basin fill SF6 gas tank body assembly; Be provided with in described tank body three isolation grounding switch assembly, the electric conductor upper end of described single-phase insulating basin is connected with outlet casing tube electrical component, electric conductor lower end is then connected with the end face of a plate, three isolation the upper end of grounding switch assembly be fixedly connected on the three-phase electric conductor that described web joint bottom surface upper and lower end then connects three phase isolated basin respectively.The SF6 gas in SF6 gas tank body assembly need not be reclaimed during utility model works and vacuumize, shortening the test period, also greatly increase work efficiency and reduce cost of labor, can avoid because of the generation causing equipment or personal security accident of discharging simultaneously.
Description
Technical field
The utility model relates to a kind of power frequency withstand test device for three-phase combined type type high pressure GIS.
Background technology
Operating GIS, except the normal phase voltage bearing system for a long time, also will bear various superpotential effect.In order to ensure the operation reliably and with long-term of GIS, power frequency withstand test must be carried out to GIS.When existing three-phase combined type type high pressure GIS carries out power frequency withstand test, particularly product indoors time, limit by field condition, cannot adopt that three-phase outlet casing tube is disposable carries out power frequency withstand test to GIS.Current test method takes single-phase outlet casing tube test method and progressively completes three-phase site test, thus after causing often completing the test of a phase, need the SF6 gas again reclaimed in outlet casing tube, another phase is changed again at the cable termination of GIS product, residue two-phase is carried out ground connection simultaneously, then outlet casing tube extracting vacuum is filled with SF6 gas, then carries out power frequency withstand test.All need during each commutation manually ground connection to be carried out in residue two-phase with external ground wire, once forget ground connection or ground connection that can not be good, will induced potential be produced at the trial, cause electric discharge to jeopardize equipment or personal security.Repeat operation like this, not only make the test period very long, and greatly reduce the cost of labor of work efficiency and raising product.
Utility model content
Technical problem to be solved in the utility model, just be to provide a kind of power frequency withstand test device for three-phase combined type type high pressure GIS, can the test period be shortened, greatly increase work efficiency and reduce cost of labor, avoid because of the generation causing equipment or personal security accident of discharging.
Solve the problems of the technologies described above, the utility model adopts following technical scheme:
For a power frequency withstand test device of three-phase combined type type high pressure GIS, it is characterized in that: comprise one assembled from top to bottom by outlet casing tube assembly, single-phase insulating basin, tank body and three phase isolated basin fill SF6 gas tank body assembly; Be provided with in described tank body three isolation grounding switch assembly, the electric conductor upper end of described single-phase insulating basin is connected with outlet casing tube electrical component, electric conductor lower end is then connected with the end face of a plate, three isolation the upper end of grounding switch assembly be fixedly connected on the three-phase electric conductor that described web joint bottom surface upper and lower end then connects three phase isolated basin respectively.
Described isolation grounding switch assembly be made up of disconnector movable contact block assembly, disconnector moving contact operating mechanism, fixed contact pedestal assembly and moving contact of grounding switch holder assembly.
Adopt technique scheme, when three-phase combined type type high pressure GIS is a certain be in power frequency withstand test mutually time, the isolation be namely connected with this grounding switch assembly be in disconnector combined floodgate grounding switch tripping state, other two-phases can be realized and be in disconnector separating brake grounding switch "on" position; And after this completes power frequency withstand test mutually, can directly by regulate isolation grounding switch assembly make second-phase be in disconnector close a floodgate and grounding switch tripping state, and other two-phases are in disconnector separating brake and grounding switch "on" position, the like until complete three-phase test.Whole process need not reclaim the SF6 gas in SF6 gas tank body assembly and vacuumize, and shortens the test period, also greatly increases work efficiency and reduce cost of labor.
Described disconnector movable contact block assembly is: the first base vertically placed, be provided with first moving contact that can move up and down in it, the upper end of described first base is connected with described web joint bottom surface.
Described disconnector moving contact operating mechanism is: a horizontal base being located at described first base side, feathering axis is supported with pivotally in it, described turning axle front end one insulating bar is fixed with a pinion wheel, described gear engages with the tooth bar be fixed on moving contact, turning axle rear end is stretched out tank body and is fixed with the first gear and operation rocking handle, and base is fixed on tank body.
Described fixed contact pedestal assembly is: one is located at the fixed contact pedestal below the first base that described disconnector movable contact block assembly vertically places, its in upper end and the side axially near disconnector movable contact block assembly, be respectively equipped with the first moving contact trepanning and the second moving contact trepanning, be provided with the cylindrical static contact of grounding switch in described second moving contact trepanning, fixed contact pedestal assembly lower end is connected with a phase electric conductor of three phase isolated basin.
Described moving contact of grounding switch holder assembly is: level second base being located at described fixed contact pedestal assembly side, rotatable but can not be supported with a T-shaped tooth screw rod and with seesawing can to move forward and backward but can not pivotal tubulose second moving contact in it, the rear end of tubulose second moving contact is fixed with a T-shaped tooth nut and coordinates with described T-shaped tooth screw rod; Described tubulose second moving contact correspond to the cylindrical static contact in described fixed contact pedestal assembly second moving contact trepanning, described T-shaped tooth spiro rod rear end stretches out tank body and is fixed with the second gear, the second gear and described disconnector moving contact operating mechanism first gears meshing.
Connecting hole is had in the middle of described web joint, and web joint bottom surface around connecting hole is evenly equipped with three flange form contacts, the connecting hole of described web joint is connected with the electric conductor lower end of single-phase insulating basin, flange form contact is then connected with the first base upper end of disconnector movable contact block assembly.
Described outlet casing tube assembly comprises outlet terminal, outlet casing tube, outlet contact base, rod-shaped conductor, described rod-shaped conductor is positioned at outlet casing tube and its two ends through, described outlet terminal is located at outlet casing tube upper end and is connected with rod-shaped conductor upper end, described outlet contact base upper end is connected with rod-shaped conductor lower end, and described outlet contact base lower end is connected to the electric conductor upper end of single-phase insulating basin.
During use, hi-line and the outlet terminal of power frequency high voltage generating loop device are connected, three phase isolated basin is connected on the three-phase of three-phase combined type type high pressure GIS cable termination outlet product, then rotate clockwise wherein one group of isolation the rocking handle of grounding switch assembly, make this group isolate grounding switch assembly be in disconnector close a floodgate and grounding switch tripping state, and rotate counterclockwise the rocking handle rotating other two groups isolation grounding switch assemblies and make other two groups to be in disconnector separating brake and grounding switch "on" position, power frequency withstand test can be carried out mutually to this; Then make to use the same method and power frequency withstand test is carried out to other two-phases.Omnidistance SF6 gas without the need to reclaiming in outlet casing tube and vacuumizing, can ensure other two-phase safety grounds simultaneously.
Compared with prior art, the utility model instrument has the following advantages:
The utility model need not reclaim the SF6 gas in SF6 gas tank body assembly and vacuumize, and shortens the test period, also greatly increases work efficiency and reduce cost of labor, can avoid because of the generation causing equipment or personal security accident of discharging simultaneously.
Accompanying drawing explanation
Fig. 1 is schematic perspective view of the present utility model;
Fig. 2 be the single-phase insulating basin of the utility model, three phase isolated basin and isolation the combination schematic perspective view of grounding switch assembly;
Fig. 3 is the closed stereographic map of the utility model disconnector movable contact block assembly and fixed contact pedestal assembly;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the B-B cut-open view in Fig. 4;
Fig. 6 is the A-A cut-open view in Fig. 5;
Fig. 7 is the disconnection schematic diagram of the utility model moving contact of grounding switch holder assembly and fixed contact pedestal assembly;
Fig. 8 is the A-A cut-open view in Fig. 7;
Fig. 9 is the partial enlarged drawing in Fig. 2;
Figure 10 is T-shaped tooth screw rod schematic diagram of the present utility model;
Figure 11 is the of the present utility model second fixing base schematic diagram;
Figure 12 be the second moving contact of the present utility model with T-shaped tooth nut coordinate schematic diagram;
Figure 13 is outlet casing tube assembly schematic diagram of the present utility model;
Figure 14 is the partial enlarged drawing in Figure 13;
Figure 15 is the vertical view of the single-phase insulating basin of the utility model;
Figure 16 is the A-A cut-open view in Figure 15;
Figure 17 is the schematic perspective view of the utility model three phase isolated basin.
In figure: 1-outlet casing tube assembly, the single-phase insulating basin of 2-, 3-tank body, 4-three phase isolated basin, 5-isolation grounding switch assembly, 6-tooth bar, 7-gear, 8-insulating bar, 9-turning axle, 10-base, 1A-first gear, 1B-second gear, 1C-rocking handle, 2A-web joint, 11-outlet terminal, 12-outlet casing tube, 13-rod-shaped conductor, 14-outlet contact base, 21-electric conductor lower end, 22-electric conductor upper end, 51-disconnector movable contact block assembly, 52-fixed contact pedestal assembly, 53-moving contact of grounding switch holder assembly, 511-first moving contact, 512-first base, 521-fixed contact pedestal, 522-first moving contact trepanning, 523-second moving contact trepanning, 524-cylindrical contact, 531-second moving contact, 532-T type tooth nut, 533-T type tooth screw rod, 534-second base.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is described in further detail.
As shown in Figure 1, 2, a kind of power frequency withstand test device for three-phase combined type type high pressure GIS, comprise one assembled from top to bottom by outlet casing tube assembly 1, single-phase insulating basin 2, tank body 3 and three phase isolated basin 4 fill SF6 gas tank body assembly; Be provided with in tank body three isolation grounding switch assembly 5, the electric conductor upper end 22 of single-phase insulating basin 2 is connected with outlet casing tube electrical component, 21, electric conductor lower end is connected with the end face of a plate 2A, three isolation the upper end of grounding switch assembly 5 be fixedly connected on the three-phase electric conductor that described web joint 2A bottom surface upper and lower end then connects three phase isolated basin 4 respectively.
As shown in Fig. 3 to 12, isolation grounding switch assembly form 53 by disconnector movable contact block assembly 51, disconnector moving contact operating mechanism, fixed contact pedestal assembly 52 and moving contact of grounding switch holder assembly, disconnector movable contact block assembly is the first base 512 vertically placed, and be provided with first moving contact 511 that can move up and down in it, the upper end of described first base is connected with described web joint 2A bottom surface, disconnector moving contact operating mechanism is a horizontal base 10 being located at described first base side, feathering axis 9 is supported with pivotally in it, described turning axle front end one insulating bar 8 is fixed with a pinion wheel 7, described gear engages with the tooth bar 6 be fixed on the first moving contact, turning axle 9 rear end is stretched out tank body 3 and is fixed with the first gear 1A and operation rocking handle 1C, and base 10 is fixed on tank body 3, fixed contact pedestal assembly 52 is a fixed contact pedestal 521 being located at below vertical the first base 512 placed of described disconnector movable contact block assembly 51, its in upper end and the side axially near disconnector movable contact block assembly 51, be respectively equipped with the first moving contact trepanning 522 and the second moving contact trepanning 523, the 523 cylindrical static contacts 524 being provided with grounding switch in described second moving contact trepanning, fixed contact pedestal assembly lower end is connected with a phase electric conductor of three phase isolated basin 4, moving contact of grounding switch holder assembly 53 is level second base 534 being located at described fixed contact pedestal assembly 51 side, rotatable but a T-shaped tooth screw rod 533 can not be supported with seesawing in it, and one can move forward and backward but can not pivotal tubulose second moving contact 531, the rear end of tubulose second moving contact is fixed with a T-shaped tooth nut 532 and coordinates with described T-shaped tooth screw rod 533, described tubulose second moving contact 531 correspond to the cylindrical static contact 524 in described fixed contact pedestal assembly second moving contact trepanning, described T-shaped tooth screw rod 533 rear end is stretched out tank body and is fixed with the second gear 1B, second gear 1B engages with described disconnector moving contact operating mechanism first gear 1A.
Adopt technique scheme, when three-phase combined type type high pressure GIS is a certain be in power frequency withstand test mutually time, the isolation be namely connected with this grounding switch assembly be in disconnector combined floodgate grounding switch tripping state, other two-phases can be realized and be in disconnector separating brake grounding switch "on" position; And after this completes power frequency withstand test mutually, can directly by regulate isolation grounding switch assembly make second-phase be in disconnector close a floodgate and grounding switch tripping state, and other two-phases are in disconnector separating brake and grounding switch "on" position, the like until complete three-phase test.Whole process need not reclaim the SF6 gas in SF6 gas tank body assembly and vacuumize, and shortens the test period, also greatly increases work efficiency and reduce cost of labor.
Connecting hole is had in the middle of described web joint 2A, and web joint 2A bottom surface around connecting hole is evenly equipped with three flange form contacts, the connecting hole of described web joint is connected with the electric conductor lower end 21 of single-phase insulating basin 2, flange form contact is then connected with the first base 512 upper end of disconnector movable contact block assembly 51.
As shown in Figure 13,14, described outlet casing tube assembly comprises outlet terminal 11, outlet casing tube 12, outlet contact base 14, rod-shaped conductor 13, described rod-shaped conductor 13 is positioned at outlet casing tube 12 and its two ends through, described outlet terminal 11 is located at outlet casing tube 12 upper end and is connected with rod-shaped conductor 13 upper end, described outlet contact base upper end is connected with rod-shaped conductor lower end, and described outlet contact base lower end is connected to the electric conductor upper end 22 of single-phase insulating basin 2.
During use, hi-line and the outlet terminal of power frequency high voltage generating loop device are connected, three phase isolated basin is connected on the three-phase of three-phase combined type type high pressure GIS cable termination outlet product, then rotate clockwise wherein one group of isolation the rocking handle of grounding switch assembly, make this group isolate grounding switch assembly be in disconnector close a floodgate and grounding switch tripping state, and rotate counterclockwise the rocking handle rotating other two groups isolation grounding switch assemblies and make other two groups to be in disconnector separating brake and grounding switch "on" position, power frequency withstand test can be carried out mutually to this; Then make to use the same method and power frequency withstand test is carried out to other two-phases.Omnidistance SF6 gas without the need to reclaiming in outlet casing tube and vacuumizing, can ensure other two-phase safety grounds simultaneously.
Claims (8)
1., for a power frequency withstand test device of three-phase combined type type high pressure GIS, it is characterized in that: comprise one assembled from top to bottom by outlet casing tube assembly, single-phase insulating basin, tank body and three phase isolated basin fill SF6 gas tank body assembly; Be provided with in described tank body three isolation grounding switch assembly, the electric conductor upper end of described single-phase insulating basin is connected with outlet casing tube electrical component, electric conductor lower end is then connected with the end face of a plate, three isolation the upper end of grounding switch assembly be fixedly connected on the three-phase electric conductor that described web joint bottom surface upper and lower end then connects three phase isolated basin respectively.
2. the power frequency withstand test device for three-phase combined type type high pressure GIS according to claim 1, is characterized in that: described isolation grounding switch assembly be made up of disconnector movable contact block assembly, disconnector moving contact operating mechanism, fixed contact pedestal assembly and moving contact of grounding switch holder assembly.
3. the power frequency withstand test device for three-phase combined type type high pressure GIS according to claim 2, it is characterized in that: described disconnector movable contact block assembly is: the first base vertically placed, be provided with first moving contact that can move up and down in it, the upper end of described first base is connected with described web joint bottom surface.
4. the power frequency withstand test device for three-phase combined type type high pressure GIS according to claim 3, it is characterized in that: described disconnector moving contact operating mechanism is: a horizontal base being located at described first base side, feathering axis is supported with pivotally in it, described turning axle front end one insulating bar is fixed with a pinion wheel, described gear engages with the tooth bar be fixed on moving contact, turning axle rear end is stretched out tank body and is fixed with the first gear and operation rocking handle, and base is fixed on tank body.
5. the power frequency withstand test device for three-phase combined type type high pressure GIS according to claim 4, it is characterized in that: described fixed contact pedestal assembly is: one is located at the fixed contact pedestal below the first base that described disconnector movable contact block assembly vertically places, its in upper end and the side axially near disconnector movable contact block assembly, be respectively equipped with the first moving contact trepanning and the second moving contact trepanning, be provided with the cylindrical static contact of grounding switch in described second moving contact trepanning, fixed contact pedestal assembly lower end is connected with a phase electric conductor of three phase isolated basin.
6. the power frequency withstand test device for three-phase combined type type high pressure GIS according to claim 5, it is characterized in that: described moving contact of grounding switch holder assembly is: level second base being located at described fixed contact pedestal assembly side, rotatable but can not be supported with a T-shaped tooth screw rod and with seesawing can to move forward and backward but can not pivotal tubulose second moving contact in it, the rear end of tubulose second moving contact is fixed with a T-shaped tooth nut and coordinates with described T-shaped tooth screw rod; Described tubulose second moving contact correspond to the cylindrical static contact in described fixed contact pedestal assembly second moving contact trepanning, described T-shaped tooth spiro rod rear end stretches out tank body and is fixed with the second gear, the second gear and described disconnector moving contact operating mechanism first gears meshing.
7. the power frequency withstand test device for three-phase combined type type high pressure GIS according to claim 6, it is characterized in that: in the middle of described web joint, have connecting hole, and web joint bottom surface around connecting hole is evenly equipped with three flange form contacts, the connecting hole of described web joint is connected with the electric conductor lower end of single-phase insulating basin, flange form contact is then connected with the first base upper end of disconnector movable contact block assembly.
8. the power frequency withstand test device for three-phase combined type type high pressure GIS according to claim 2, it is characterized in that: described outlet casing tube assembly comprises outlet terminal, outlet casing tube, outlet contact base, rod-shaped conductor, described rod-shaped conductor is positioned at outlet casing tube and its two ends through, described outlet terminal is located at outlet casing tube upper end and is connected with rod-shaped conductor upper end, described outlet contact base upper end is connected with rod-shaped conductor lower end, and described outlet contact base lower end is connected to the electric conductor upper end of single-phase insulating basin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520275470.9U CN204613351U (en) | 2015-04-30 | 2015-04-30 | A kind of power frequency withstand test device for three-phase combined type type high pressure GIS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520275470.9U CN204613351U (en) | 2015-04-30 | 2015-04-30 | A kind of power frequency withstand test device for three-phase combined type type high pressure GIS |
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| Publication Number | Publication Date |
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| CN204613351U true CN204613351U (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520275470.9U Withdrawn - After Issue CN204613351U (en) | 2015-04-30 | 2015-04-30 | A kind of power frequency withstand test device for three-phase combined type type high pressure GIS |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865505A (en) * | 2015-04-30 | 2015-08-26 | 广州白云电器设备股份有限公司 | Power frequency withstand voltage test device used for three-phase common-box type high-voltage GIS |
| CN106374380A (en) * | 2016-11-17 | 2017-02-01 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | GIS bus spare interval power-uninterrupted extension function module and extension method |
| CN112147468A (en) * | 2020-09-09 | 2020-12-29 | 中国能源建设集团华北电力试验研究院有限公司 | Three-phase system type power cable alternating current voltage withstand test method |
-
2015
- 2015-04-30 CN CN201520275470.9U patent/CN204613351U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865505A (en) * | 2015-04-30 | 2015-08-26 | 广州白云电器设备股份有限公司 | Power frequency withstand voltage test device used for three-phase common-box type high-voltage GIS |
| CN104865505B (en) * | 2015-04-30 | 2018-03-06 | 广州白云电器设备股份有限公司 | A kind of industrial frequency withstand voltage experimental rig for three-phase combined type type high pressure GIS |
| CN106374380A (en) * | 2016-11-17 | 2017-02-01 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | GIS bus spare interval power-uninterrupted extension function module and extension method |
| CN112147468A (en) * | 2020-09-09 | 2020-12-29 | 中国能源建设集团华北电力试验研究院有限公司 | Three-phase system type power cable alternating current voltage withstand test method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150902 Effective date of abandoning: 20180306 |