CN203881867U - A single-phase instantaneous artificial grounding short circuit test device for power transmission lines - Google Patents
A single-phase instantaneous artificial grounding short circuit test device for power transmission lines Download PDFInfo
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- CN203881867U CN203881867U CN201420245180.5U CN201420245180U CN203881867U CN 203881867 U CN203881867 U CN 203881867U CN 201420245180 U CN201420245180 U CN 201420245180U CN 203881867 U CN203881867 U CN 203881867U
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- 238000012360 testing method Methods 0.000 title claims abstract description 35
- 230000005540 biological transmission Effects 0.000 title claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 56
- 229910052751 metal Inorganic materials 0.000 claims abstract description 56
- 230000005611 electricity Effects 0.000 claims description 20
- 239000012212 insulator Substances 0.000 claims description 11
- 230000006378 damage Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 2
- 230000002459 sustained effect Effects 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 abstract 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model relates to a single-phase instantaneous artificial grounding short circuit test device for power transmission lines and belongs to the field of high-voltage test equipment and measurement technology. The single-phase instantaneous artificial grounding short circuit test device comprises metal down leads, a metal arc striking wire, a current transformer and a measuring instrument. The two metal down leads are connected with an overhead line of a power transmission line and a metal rod is fixed between the two metal down leads. A traction insulation rope is connected with a take-up device and the other end is connected with the metal arc striking wire. The metal arc striking wire is connected with a power transmission line tower through a ground connection line. The ground connection line is placed on a metal board. The current transformer is connected to the ground connection line in series and is placed on an insulation board. The secondary side of the current transformer is connected with the measuring instrument. The single-phase instantaneous artificial grounding short circuit test device is simple and convenient, has favorable operation safety, employs electric take-up and guarantees that only instantaneous artificial grounding short circuit is generated in tests and sustained faults and harm to the safe operation of power grids are not caused.
Description
Technical field
The utility model relates to the single-phase instantaneous artificial earthing's short-circuit test device of a kind of transmission line of electricity, belongs to high-voltage testing equipment and field of measuring technique.
Background technology
Single-phase instantaneous artificial earthing's short-circuit test is mainly control defencive function and the characteristic that examination transmission line of electricity and string are mended, and whether the protection after measurement circuit fault and reclosing action be correct, significant for the safe reliability of checking electric system.Single-phase instantaneous artificial earthing's test objective is:
(1) check that this circuit string mends device line fault, adjacent lines string in generating region and reissue the raw external area error action behavior of discharging gap constantly;
(2) action behavior of MOV and the energy absorbing while measuring short trouble;
(3) action behavior of string benefit unit protection and route protection in inspection short trouble situation.
Along with the progress of computer technology, at present simulation calculation program can be calculated secondary arc current and recovery voltage amplitude more exactly, but the impact of the environmental factor that also cannot simulate random variation on the secondary arc current arc time.Therefore, in project of transmitting and converting electricity system debug process, by single-phase instantaneous artificial earthing's test, be, very necessary.Single-phase instantaneous artificial earthing's test both can be suitable protection definite value and the reclosure time of setting provides technical basis, can examine relay protection of transmission line performance again, can provide experience for transmission line of electricity operation simultaneously.
In single-phase instantaneous artificial earthing's short-circuit test, conventional test unit is manual remote control electromagnetic launch test unit at present.Its method and principle are first on test circuit, to arrange metallographictest door shape frame; Any manual remote control electromagnetic launch device that utilizes, the bullet of thin copper wire is carried in transmitting, directly directive metallographictest door shape frame; Treat that thin copper wire contacts with metallographictest door shape frame, and then manufacture single-phase instantaneous artificial earthing's short trouble.
The shortcoming of the method is:
(1) manual remote control electromagnetic launch test unit complex structure, adopts the energy of electromagnetism to promote bullet and carries thin copper wire and travel forward, and whole apparatus cost is high, and it is large to test shared place.
(2) manual remote control electromagnetic launch test unit needs in test the bullet transmitting of carrying thin copper wire to enter in metallographictest door shape frame, therefore in process, there is certain uncertain factor, if because plant failure or operation reason bullet do not enter in metallographictest door shape frame, but be overlapped on other wires, may cause device damage or personal injury.
Summary of the invention
The utility model object is to propose the single-phase instantaneous artificial earthing's short-circuit test device of a kind of transmission line of electricity, to realize the single-phase instantaneous artificial earthing's short circuit of transmission line of electricity, uses it for control defencive function and characteristic that examination transmission line of electricity and string are mended.
The single-phase instantaneous artificial earthing's short-circuit test device of transmission line of electricity the utility model proposes, comprise two metal downleads, metal bar, traction insulating cord, metal striking line, sheet metal, current transformer and surveying instrument, one end of two described metal downleads is connected with the pole line of transmission line of electricity respectively, and described metal bar is fixed between the other end of two metal downleads; One end of described traction insulating cord is connected with the take-up that is placed in ground by a fixed pulley, the other end of traction insulating cord is connected with one end of described metal striking line by being fixed on fixed pulley on metal bar, the other end of metal striking line is connected with electric power line pole tower by grounding connection line, grounding connection line is shelved on a sheet metal being supported by support insulator, the primary side of described current transformer is connected on described grounding connection line, and described current transformer is shelved on an insulcrete being supported by support insulator; The secondary side of current transformer is connected with described surveying instrument, and described surveying instrument is shelved on an insulcrete being supported by support insulator.
The single-phase instantaneous artificial earthing's short-circuit test device of transmission line of electricity the utility model proposes, its advantage is:
(1) of the present utility model simple and convenient for the single-phase instantaneous artificial earthing's short-circuit test system of transmission line of electricity, use simple metal wire, sheet metal, insulating cord and insulcrete etc. just can realize the single-phase instantaneous artificial earthing's short circuit of transmission line of electricity.
(2) of the present utility model for the single-phase instantaneous artificial earthing's short-circuit test system of transmission line of electricity, there is good processing safety, the earth current of ground short circuit fault is very large, often reach tens of kilo-amperes, and in the utility model pilot system, take electric wire winding, can avoid the security risk of testing crew.
(3) of the present utility model for the single-phase instantaneous artificial earthing's short-circuit test system of transmission line of electricity, there is good reliability, in the high temperature that metal striking line can produce at electric arc after striking success, melt, thereby guarantee only to manufacture in test instantaneous artificial earthing's short circuit, can not cause sustained fault and then harm electric power netting safe running.
Accompanying drawing explanation
Fig. 1 is the structural representation of the single-phase instantaneous artificial earthing's short-circuit test device of transmission line of electricity that the utility model proposes.
In Fig. 1, the 1st, electric power line pole tower, the 2nd, insulator, the 3rd, pole line, the 4th, metal downlead, the 5th, metal bar, the 6th, fixed pulley, the 7th, traction insulating cord, the 8th, take-up, the 9th, metal striking line, the 10th, sheet metal, the 11st, support insulator, the 12nd, grounding connection line, the 13rd, current transformer, the 14th, insulcrete, the 15th, surveying instrument.
Embodiment
The single-phase instantaneous artificial earthing's short-circuit test device of transmission line of electricity the utility model proposes, its structure as shown in Figure 1, comprises two metal downleads 4, metal bar 5, traction insulating cord 7, metal striking line 9, sheet metal 10, current transformer 13 and surveying instrument 15.One end of two metal downleads 4 is connected with the pole line 3 on electric power line pole tower 1 respectively, and metal bar 5 is fixed between the other end of two metal downleads 4.One end of traction insulating cord 7 is connected with the take-up 8 that is placed in ground by fixed pulley 6, the other end of traction insulating cord 7 is connected with one end of metal striking line 9 by the fixed pulley 6 being fixed on metal bar 5, the other end of metal striking line 9 is connected with electric power line pole tower 1 by grounding connection line 12, and grounding connection line 12 is shelved on a sheet metal being supported by support insulator 11 10.The primary side of current transformer 13 is connected on grounding connection line 12, current transformer 13 is shelved on another insulcrete being supported by support insulator 11 14, the secondary side of current transformer 13 is connected with surveying instrument 15, and surveying instrument 15 is shelved on an insulcrete being supported by support insulator 11 14.
Below in conjunction with accompanying drawing, introduce in detail the course of work of this test unit:
First two metal downleads 4 are fixed on pole line 3.Sheet metal 10 use grounding connection lines 12 are connected with the grounding body of electric power line pole tower 1, make sheet metal 10 be connected with metal striking line simultaneously.Metal striking line 9 is connected with traction insulating cord 7, and through fixed pulley 6, utilize take-up 8 to tighten up traction insulating cord 7, metal striking line 9 is pulled on metal bar 5, make to have high-tension overhead transmission line and there is earthy sheet metal and be connected by striking line, and then manufacture single-phase instantaneous artificial earthing's short circuit, utilize surveying instrument 15 summation current transformers 13 can on grounding connection line, measure the earth current in single-phase instantaneous artificial earthing's short circuit.
In the single-phase instantaneous artificial earthing's short-circuit test device of transmission line of electricity of the present utility model, the current transformer of use is produced by North China DianKeYuan, and the surveying instrument You Zhi Electric Co., Ltd of use produces, and product type is 8861 wave tracers.
Claims (1)
1. the single-phase instantaneous artificial earthing's short-circuit test device of transmission line of electricity, it is characterized in that this test unit comprises two metal downleads, metal bar, traction insulating cord, metal striking line, sheet metal, current transformer and surveying instrument, one end of two described metal downleads is connected with the pole line of transmission line of electricity respectively, and described metal bar is fixed between the other end of two metal downleads; One end of described traction insulating cord is connected with the take-up that is placed in ground by a fixed pulley, the other end of traction insulating cord is connected with one end of described metal striking line by being fixed on fixed pulley on metal bar, the other end of metal striking line is connected with electric power line pole tower by grounding connection line, grounding connection line is shelved on a sheet metal being supported by support insulator, the primary side of described current transformer is connected on described grounding connection line, and described current transformer is shelved on an insulcrete being supported by support insulator; The secondary side of current transformer is connected with described surveying instrument, and described surveying instrument is shelved on an insulcrete being supported by support insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420245180.5U CN203881867U (en) | 2014-05-14 | 2014-05-14 | A single-phase instantaneous artificial grounding short circuit test device for power transmission lines |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420245180.5U CN203881867U (en) | 2014-05-14 | 2014-05-14 | A single-phase instantaneous artificial grounding short circuit test device for power transmission lines |
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| CN203881867U true CN203881867U (en) | 2014-10-15 |
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| CN201420245180.5U Expired - Fee Related CN203881867U (en) | 2014-05-14 | 2014-05-14 | A single-phase instantaneous artificial grounding short circuit test device for power transmission lines |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931845A (en) * | 2015-06-21 | 2015-09-23 | 云南电力试验研究院(集团)有限公司 | 10kV overhead line artificial grounding fault testing device and application method |
| CN109061358A (en) * | 2018-10-24 | 2018-12-21 | 云南电网有限责任公司电力科学研究院 | A kind of single-phase transient earthing short-circuit test method and system of transmission line of electricity |
| CN109342800A (en) * | 2018-11-29 | 2019-02-15 | 贵州航天计量测试技术研究所 | A kind of calibrating installation and calibration method of pulse plating power pulse current |
| CN111426916A (en) * | 2020-05-14 | 2020-07-17 | 昆明理工大学 | Grounding electrode line fault simulation method and system |
| WO2022188384A1 (en) * | 2021-03-11 | 2022-09-15 | 南方电网科学研究院有限责任公司 | Ultra-high voltage line artificial short-circuit test method based on pulling by unmanned aerial vehicle |
-
2014
- 2014-05-14 CN CN201420245180.5U patent/CN203881867U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931845A (en) * | 2015-06-21 | 2015-09-23 | 云南电力试验研究院(集团)有限公司 | 10kV overhead line artificial grounding fault testing device and application method |
| CN109061358A (en) * | 2018-10-24 | 2018-12-21 | 云南电网有限责任公司电力科学研究院 | A kind of single-phase transient earthing short-circuit test method and system of transmission line of electricity |
| CN109342800A (en) * | 2018-11-29 | 2019-02-15 | 贵州航天计量测试技术研究所 | A kind of calibrating installation and calibration method of pulse plating power pulse current |
| CN111426916A (en) * | 2020-05-14 | 2020-07-17 | 昆明理工大学 | Grounding electrode line fault simulation method and system |
| CN111426916B (en) * | 2020-05-14 | 2021-06-25 | 昆明理工大学 | Grounding electrode line fault simulation method and system |
| WO2022188384A1 (en) * | 2021-03-11 | 2022-09-15 | 南方电网科学研究院有限责任公司 | Ultra-high voltage line artificial short-circuit test method based on pulling by unmanned aerial vehicle |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20141015 Termination date: 20150514 |
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