CN203479978U - Capacitance cone discharging testing device for current transformer - Google Patents
Capacitance cone discharging testing device for current transformer Download PDFInfo
- Publication number
- CN203479978U CN203479978U CN201320603483.5U CN201320603483U CN203479978U CN 203479978 U CN203479978 U CN 203479978U CN 201320603483 U CN201320603483 U CN 201320603483U CN 203479978 U CN203479978 U CN 203479978U
- Authority
- CN
- China
- Prior art keywords
- capacitance
- cone
- current transformer
- noble potential
- capacitance cone
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a capacitance cone discharging testing device for a current transformer. The testing device comprises a high-potential shell, an insulation supporting sleeve and a base, the high-potential shell is supported on the base via the insulation supporting sleeve, a capacitance cone is arranged in the insulation supporting sleeve, and the surface of the capacitance cone is provided with a metal piece. According to the capacitance cone discharging testing device for the current transformer, the discharging conditions of the capacitance cone can be truly and effectively simulated under the condition that the current transformer has defects.
Description
Technical field
The utility model relates to High-Voltage Electrical Appliances transmission facility field, particularly relates to a kind of current transformer capacitance cone discharge test device.
Background technology
In current transformer, be generally packaged with sulfur hexafluoride gas to be used as to insulate.The sulfur hexafluoride decomposition gas that current transformer shelf depreciation produces is known from experience erode metallic surfaces, is accelerated the aging of insulation, finally develops into disruptive discharge accident, causes very large economic loss.
In recent years, both at home and abroad sulfur hexafluoride decomposed gas component is detected and carried out large quantity research, some initial achievements have been obtained, but the shelf depreciation under various insulation defects is caused to the differences such as decomposable process, decomposition rate, decomposition product relative content and influence factor of sulfur hexafluoride gas, particularly to compare relation not clear for gas decomposition product relative content and shelf depreciation type associated, need to carry out more deep fundamental research.In deep research, how effectively to arrange defect, defect is arranged and more approach the defect that may occur in actual motion equipment, be one of factor the most key in simulated experiment.
Summary of the invention
Based on this, be necessary for prior art defect, provide a kind of can be truly, the current transformer capacitance cone discharge test device of capacitance cone discharge scenario when effectively analog current mutual inductor exists defect.
Its technical scheme is as follows.
A current transformer capacitance cone discharge test device, comprises noble potential shell, insulating supporting sleeve and base, and described noble potential shell is supported on described base by described insulating supporting sleeve; In described insulating supporting sleeve, be provided with capacitance cone, the surface of this capacitance cone is provided with metalwork.
On the surface of capacitance cone, metalwork is set, discharge scenario when creeping discharge occurs artificial capacitor cone effectively, thus be conducive to the research that defects simulation is tested.
In an embodiment, described capacitance cone comprises the ring-type capacitance plate of multilayer nest therein, and described ring-type capacitance plate is the stacked cone structure that is mutually, between described ring-type capacitance plate, insulation course is set.Metalwork is metallic film, and metallic film sticks on the surface of annular capacitor screen, forms capacitance cone discharge defect.
In an embodiment, described insulation supporting cylinder also comprises secondary lead wires pipe therein, and described secondary lead wires pipe one end is connected with noble potential shell, and the other end is connected with base, and described secondary lead wires pipe runs through described capacitance cone.
Therein in an embodiment, noble potential shell also comprises guide rod and Secondary Winding, and described Secondary Winding is arranged in described noble potential shell, and a described guide rod runs through Secondary Winding and noble potential shell.
In an embodiment, described insulating supporting sleeve comprises first end and the second end therein, and described first end is connected with noble potential shell, and the second end is connected with base.
Below the advantage of the technical program or principle are described.
On the surface of capacitance cone, metalwork is set, discharge scenario when creeping discharge occurs artificial capacitor cone effectively, thus be conducive to the research that defects simulation is tested.
Accompanying drawing explanation
Fig. 1 is the structural representation of current transformer capacitance cone discharge test device described in the utility model embodiment;
Fig. 2 is the partial enlarged view at A place in Fig. 1;
Description of reference numerals:
10, noble potential shell, 20, insulating supporting sleeve, 210, secondary lead wires pipe 30, base, 40, guide rods, 50, Secondary Winding, 60, insulator, 70, capacitance cone, 710, annular capacitor screen, 80, metalwork.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described in detail.
Current transformer insulator arc-over test unit, comprises noble potential shell 10, insulating supporting sleeve and base 30 as shown in Figure 1-2, and noble potential shell 10 is supported on base 30 by insulating supporting sleeve.Insulating supporting sleeve is insulating supporting sleeve, and its inside is provided with inner chamber.Insulating supporting sleeve comprises first end and the second end, and its first end is connected with noble potential shell 10, and the second end is connected with base 30.In the present embodiment, insulating supporting sleeve adopts silicon rubber composite insulation sleeve or high-strength ceramic sleeve, certainly also can adopt in other embodiments other materials as insulating supporting sleeve.In noble potential shell 10 and insulating supporting sleeve, be packaged with sulfur hexafluoride gas, with what be used as to insulate.
In insulating supporting sleeve, be provided with capacitance cone 70, on the surface of this capacitance cone 70, be provided with metalwork 80.Capacitance cone 70 is comprised of one group of descending annular capacitor screen 710 of diameter, diameter is set in the inside of the annular capacitor screen 710 that diameter is larger compared with circlet shape capacitance plate 710, annular capacitor shields 710 mutual stacked integral body and is cone structure, between stacked annular capacitor screen 710 and annular capacitor screen 710, be provided with insulation course, in the present embodiment, this insulation course is epoxy resin layer.Metalwork 80 is located at the surface of annular capacitor screen 710, makes capacitance cone 70 form creeping discharge defect.In the present embodiment, metalwork 80 is metallic film, and metallic film is pasted at annular capacitor and shielded 710 surfaces, and the surface of capacitance cone 70, forms capacitance cone 70 surface-discharge defects.Certainly, also can adopt in other embodiments other metalwork 80 to carry out defects simulation.Capacitance cone 70 is for two ends are provided with opening, and the opening at two ends is in the inner straight of capacitance cone 70.Insulation supporting cylinder 20 also comprises secondary lead wires pipe 210, and secondary lead wires pipe 210 one end are connected with noble potential shell, and the other end is connected with base, and secondary lead wires pipe 210 runs through capacitance cone 70.
Wherein, in noble potential shell 10, be provided with Secondary Winding 50 and insulator 60.Insulator 60 is basin-like body, comprises first end and the second end.First end is serrated end, is the little one end of diameter.And the second end is for extending out end, it is the large one end of diameter.Secondary Winding 50 is supported in noble potential shell 10 by insulator 60, and the first end of insulator 60 is connected with Secondary Winding 50, and the second end is connected with the junction of noble potential shell 10 with insulating supporting sleeve.Current transformer insulator arc-over test unit also includes guide rod 40 No. one time.On noble potential shell 10, be provided with the first relative mounting hole and the second mounting hole, noble potential shell 10 inside are provided with Secondary Winding 50, a guide rod 40 is through the first mounting hole, Secondary Winding 50 and the second mounting hole, thereby run through 50, guide rod 40 levels of noble potential shell 10 and Secondary Winding through Secondary Winding 50 center.
In the process of producing or installing, between the annular capacitor of capacitance cone 70 screen 710, may have the existence of metal fragment.When operation, these metal fragments can make capacitance cone 70 creeping discharge, the generation causing the accident.Through electric Field Calculation, comparatively severe in capacitance cone 70 surface field distortion, and be accident place occurred frequently, metalwork 80 is set herein, capacitance cone 70 turn-to-turn short circuit defects in simulation exemplary currents mutual inductor structure that can be comparatively accurate and effective. herein
Below the advantage of the utility model embodiment or principle are described in detail.
On the surface of capacitance cone 70, metalwork 80 is set, discharge scenario when creeping discharge occurs artificial capacitor cone 70 effectively, thus be conducive to the research that defects simulation is tested.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (5)
1. a current transformer capacitance cone discharge test device, is characterized in that, comprises noble potential shell, insulating supporting sleeve and base, and described noble potential shell is supported on described base by described insulating supporting sleeve; In described insulating supporting sleeve, be provided with capacitance cone, on the surface of this capacitance cone, be provided with metalwork.
2. current transformer capacitance cone discharge test device according to claim 1, is characterized in that, described capacitance cone comprises the ring-type capacitance plate of multilayer nest, and described ring-type capacitance plate is the stacked cone structure that is mutually, between described ring-type capacitance plate, insulation course is set.
3. current transformer capacitance cone discharge test device according to claim 1, it is characterized in that, described insulation supporting cylinder also comprises secondary lead wires pipe, and described secondary lead wires pipe one end is connected with noble potential shell, the other end is connected with base, and described secondary lead wires pipe runs through described capacitance cone.
4. according to the current transformer capacitance cone discharge test device described in claims 1 to 3 any one, it is characterized in that, also comprise guide rod and Secondary Winding, described Secondary Winding is arranged in described noble potential shell, and a described guide rod runs through Secondary Winding and noble potential shell.
5. according to the current transformer capacitance cone discharge test device described in claims 1 to 3 any one, it is characterized in that, described insulating supporting sleeve comprises first end and the second end, and described first end is connected with noble potential shell, and the second end is connected with base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320603483.5U CN203479978U (en) | 2013-09-27 | 2013-09-27 | Capacitance cone discharging testing device for current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320603483.5U CN203479978U (en) | 2013-09-27 | 2013-09-27 | Capacitance cone discharging testing device for current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203479978U true CN203479978U (en) | 2014-03-12 |
Family
ID=50228286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320603483.5U Expired - Lifetime CN203479978U (en) | 2013-09-27 | 2013-09-27 | Capacitance cone discharging testing device for current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203479978U (en) |
-
2013
- 2013-09-27 CN CN201320603483.5U patent/CN203479978U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105510780B (en) | SF6 High-Voltage Electrical Appliances insulated pull rod Insulation Test system and method | |
| CN103308736B (en) | Small-sized integrated steep pulse generating means | |
| CN105428007A (en) | Combined electric appliance with multi-capacitive screen insulation core | |
| CN104360241A (en) | System and method for impulse withstanding performance test of gas-insulated impulse voltage generator unit | |
| CN104483607B (en) | A kind of inflatable compact surge voltage generating means | |
| CN102323525B (en) | Test method for insulating property experiment on lead with withstand voltage level of more than 35kV | |
| CN203535183U (en) | Interturn short circuit test device for current transformer cone capacitor | |
| Ilhan et al. | Effects of corona ring design upon impulse voltage withstand level of 380 kV V-strings | |
| Zhou et al. | Surface flashover characteristics of oil-paper insulation under combined AC-DC voltage | |
| CN102801123B (en) | 20KV sleeve | |
| CN106025959B (en) | A kind of 550kV GIS inlet-outlet line porcelain bushing shell and its assembly method | |
| CN202473442U (en) | Voltage equalizing shielding cylinder of porcelain bushing conductor | |
| CN204989400U (en) | A integral type high -voltage testing transformer for insulating oily withstanding voltage tester | |
| CN204705696U (en) | SF 6discharge Simulation platform | |
| CN203479978U (en) | Capacitance cone discharging testing device for current transformer | |
| CN203535175U (en) | Point discharge test device for current-transformer secondary winding | |
| Wang et al. | Simulation study of electric influence caused by defects on UHV AC GIS spacer | |
| CN203535177U (en) | Point discharge test device for primary guide rod of current transformer | |
| CN203535176U (en) | Discharge test device for current transformer insulator | |
| CN203788638U (en) | Grounding inner-shielding device of high-voltage insulating sleeve | |
| CN201060735Y (en) | Positive and negative 500kV DC current sensor | |
| CN204167022U (en) | A kind of high-voltage wall bushing | |
| CN104332258B (en) | The high-voltage wall bushing improved | |
| CN206789408U (en) | A kind of gas-insulated transformer sleeve pipe | |
| CN207268981U (en) | A kind of new structure gas-insulated transformer casing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140312 |
|
| CX01 | Expiry of patent term |