CN202583299U - Special junction pole for testing capacitive current of neutral point ungrounded system - Google Patents
Special junction pole for testing capacitive current of neutral point ungrounded system Download PDFInfo
- Publication number
- CN202583299U CN202583299U CN 201220189766 CN201220189766U CN202583299U CN 202583299 U CN202583299 U CN 202583299U CN 201220189766 CN201220189766 CN 201220189766 CN 201220189766 U CN201220189766 U CN 201220189766U CN 202583299 U CN202583299 U CN 202583299U
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- Prior art keywords
- fuse
- neutral point
- insulation sleeve
- testing
- junction pole
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- Expired - Fee Related
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- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 230000007935 neutral effect Effects 0.000 title claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 14
- 241000883966 Astrophytum capricorne Species 0.000 claims description 3
- 235000014364 Trapa natans Nutrition 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract 8
- 238000000034 method Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 230000001629 suppression Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
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Abstract
A special junction pole for testing a capacitive current of a neutral point ungrounded system is used to solve a connection problem of a testing instrument and a neutral point of a system. The technical scheme is that the special junction pole for testing the capacitive current of the neutral point ungrounded system comprises a fuse, an insulation sleeve and an insulation pole, wherein a metal cap with a conductive contact is fixedly arranged at the upper end of the insulation sleeve, the lower end of the insulation sleeve is connected with the insulation pole in an abutting mode, a wiring bolt which horizontally penetrates through the insulation sleeve and a wiring nut which is matched with the wiring bolt are arranged at the lower end of the insulation sleeve, the fuse is arranged inside the insulation sleeve, the lower end of the fuse is pressed on the wiring bolt, and the upper end of the fuse is connected with the metal cap in an electric mode through a compressed spring. The special junction pole for testing the capacitive current of the neutral point ungrounded system is simple in structure, convenient to operate and reliable in work. Not only are accuracy and working efficiency of the tasting result improved, but also personal safety of staff is ensured.
Description
Technical field
The utility model relates to a kind of junction pole that is used for the lead of test apparatus input end is connected to test point that when test isolated neutral system capacitance current, uses, and belongs to technical field of measurement and test.
Background technology
System capacitive current just is meant not to be had under the situation of compensation at operating isolated neutral system, when single-phase earthing takes place, flows through the reactive current of earth point.Because the safe operation that electrical network in the system capacitive current serious threat, therefore general employing arc suppression coil compensates.For can choose reasonable arc suppression coil parameter, must the service test instrument be measured by system capacitive current.At present; The method of operating of measuring system capacitance current is; Be bundled on the common insulated tension pole after one fuse two ends are connected lead, the lead of fuse lower end is connected with the input end of test apparatus, and operating personnel hand insulated tension pole; Fuse upper end lead is overlapped on the neutral point of system, thus the measurement of realization system capacitive current.Not enough below this measuring method exists:
1, fuse is directly exposed in the environment, in assembling, transportation, process of the test, very easily collides with other parts and damages, and collides with if in process of the test, receive fiercely, and fuse also might burst, and jeopardizes the personal safety of testing crew.
2, fuse and lead fixed are not firm, are prone in the process of the test come off.Fuse is fixed on the insulated tension pole by two clamps and binding wire, and test lead with clip on pull bar, easily looseningly cause loose contact, influence accuracy of experimental results, in the time of seriously even can come off.
3, complicated operation, inefficiency.Clamp, insulating bar, binding wire, test wire, fuse, screw etc. need be used in the testing ground, and assembling is wasted time and energy.
The utility model content
The purpose of the utility model be to overcome prior art deficiency, provide a kind of isolated neutral system capacitance current to test special-purpose junction pole, to improve accuracy of experimental results and work efficiency, guarantee staff's personal safety.
The alleged problem of the utility model realizes with following technical proposals:
A kind of isolated neutral system capacitance current is tested special-purpose junction pole; Comprise fuse, insulating sleeve and insulating bar in the formation; The upper end of said insulating sleeve is fixed with the metal cap of band conductive contact, and connection bolt that crosses insulating sleeve and the wiring nut that is complementary with connection bolt are docked and be provided with in the lower end with insulating bar, and said fuse is positioned at insulating sleeve; Its lower end roof pressure is on connection bolt, and the upper end is electrically connected with metal cap through stage clip.
Above-mentioned isolated neutral system capacitance current is tested special-purpose junction pole, and said wiring nut is the goat's horn nut.
The utility model is installed in fuse in the insulating sleeve, effectively prevented other parts to the colliding with of fuse, and has eliminated fuse and has burst the threat that the personal safety to testing crew causes; The elastic force of stage clip can guarantee the reliability that the fuse two ends are electrically connected, thereby has guaranteed accuracy of experimental results; The goat's horn nut can make this device and linking to each other of test apparatus convenient, quick.The utility model is simple in structure, easy to operate, reliable operation, not only can improve accuracy of experimental results and work efficiency, and has guaranteed staff's personal safety.
Description of drawings
Below in conjunction with accompanying drawing the utility model is done further to detail.
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the cut-open view of the utility model.
Each label is among the figure: 1, conductive contact; 2, metal cap; 3, insulating sleeve; 4, wiring nut; 5, connection bolt; 6, lead; 7, insulating bar; 8, coupling sleeve; 9, fuse; 10, metal cap trip bolt; 11, stage clip.
Embodiment
Referring to Fig. 1, Fig. 2, the utility model comprises metal cap 2, insulating sleeve 3, insulating bar 7, fuse 9, connection bolt 5, wiring nut 4 and stage clip 11, and metal cap 2 is provided with conductive contact 1, and insulating sleeve 3 docks through coupling sleeve 8 with insulating bar 7.Connection bolt 5 passes insulating sleeve 3 and coupling sleeve 8 simultaneously, and wiring nut 4 is used to compress test lead 6.Metal cap 2, conductive contact 1, coupling sleeve 8, stage clip 11, connection bolt 5, wiring nut 4, metal cap trip bolt 10 are processed by conducting metal; Insulating sleeve 3, insulating bar 7 are processed by insulated type polyamine fat material.
When the utility model uses; The test lead 6 that will connect test apparatus with wiring nut 4 compresses; Testing crew is handed insulating bar 7; Conductive contact 1 is connected on the neutral point of system, system capacitive current gets into the input end of test apparatus through conductive contact 1, metal cap 2, stage clip 11, fuse 9, connection bolt 5 and lead 6 successively, thereby realizes the measurement of system capacitive current.
Prove through test of many times, compare with prior art, the utlity model has simple in structure, reliable operation, advantage such as anti-collision, explosion-proof effect are good, and be easy to use and carry is specially adapted to the test of isolated neutral system capacitance current.
Claims (2)
1. an isolated neutral system capacitance current is tested special-purpose junction pole; It is characterized in that; It comprises fuse (9), insulating sleeve (3) and insulating bar (7); The upper end of said insulating sleeve (3) is fixed with the metal cap (2) of band conductive contact (1), and connection bolt (5) that crosses insulating sleeve (3) and the wiring nut (4) that is complementary with connection bolt (5) are docked and be provided with in the lower end with insulating bar (7), and said fuse (9) is positioned at insulating sleeve (3); Its lower end roof pressure is on connection bolt (5), and the upper end is electrically connected with metal cap (2) through stage clip (11).
2. test special-purpose junction pole according to the said isolated neutral system capacitance current of claim 1, it is characterized in that, said wiring nut (4) is the goat's horn nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220189766 CN202583299U (en) | 2012-04-29 | 2012-04-29 | Special junction pole for testing capacitive current of neutral point ungrounded system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220189766 CN202583299U (en) | 2012-04-29 | 2012-04-29 | Special junction pole for testing capacitive current of neutral point ungrounded system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202583299U true CN202583299U (en) | 2012-12-05 |
Family
ID=47252700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220189766 Expired - Fee Related CN202583299U (en) | 2012-04-29 | 2012-04-29 | Special junction pole for testing capacitive current of neutral point ungrounded system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202583299U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103336153B (en) * | 2013-06-28 | 2015-07-15 | 国家电网公司 | High-voltage test junction pole |
| CN109061276A (en) * | 2018-08-31 | 2018-12-21 | 贵州电网有限责任公司 | A kind of isolated neutral system capacitance current test device and its test method |
| CN110736881A (en) * | 2019-10-30 | 2020-01-31 | 国网山西省电力公司阳泉供电公司 | Special capacitor current test operating rod |
-
2012
- 2012-04-29 CN CN 201220189766 patent/CN202583299U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103336153B (en) * | 2013-06-28 | 2015-07-15 | 国家电网公司 | High-voltage test junction pole |
| CN109061276A (en) * | 2018-08-31 | 2018-12-21 | 贵州电网有限责任公司 | A kind of isolated neutral system capacitance current test device and its test method |
| CN110736881A (en) * | 2019-10-30 | 2020-01-31 | 国网山西省电力公司阳泉供电公司 | Special capacitor current test operating rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20180429 |