CN104049158A - Single-phase instant artificial grounding short-circuit test system for power transmission line - Google Patents
Single-phase instant artificial grounding short-circuit test system for power transmission line Download PDFInfo
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- CN104049158A CN104049158A CN201410200219.6A CN201410200219A CN104049158A CN 104049158 A CN104049158 A CN 104049158A CN 201410200219 A CN201410200219 A CN 201410200219A CN 104049158 A CN104049158 A CN 104049158A
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Abstract
The invention relates to a single-phase instant artificial grounding short-circuit test system for a power transmission line, and belongs to the technical field of high-voltage test equipment and measuring. The single-phase instant artificial grounding short-circuit test system comprises metal downleads, a metal arc striking line, a current transformer, a measuring instrument and the like. The two metal downleads are connected with an overhead line of the power transmission line respectively, and a metal bar is fixed between the two metal downleads. A traction insulation rope is connected with a line collecting device, the other end of the traction insulation rope is connected with the metal arc striking line, the metal arc striking line is connected with a power transmission tower through a grounding connecting line, the grounding connecting line is laid on a metal plate, the current transformer is connected to the grounding connecting line in series and is laid on an insulating plate, and a secondary side is connected with the measuring instrument. The single-phase instant artificial grounding short-circuit test system has the advantages of being simple, convenient and good in safety, line collecting is conducted in a power-driven mode, and it is guaranteed that only instant artificial grounding short circuit can be made in the test without continuous failures, and safe operation of a power grid is not affected.
Description
Technical field
The present invention relates to a kind ofly for the single-phase instantaneous artificial earthing's short-circuit test system of transmission line of electricity, belong 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 present invention seeks to propose a kind of for the single-phase instantaneous artificial earthing's short-circuit test system of transmission line of electricity, to realize the single-phase instantaneous artificial earthing's short circuit of transmission line of electricity, use it for control defencive function and characteristic that examination transmission line of electricity and string are mended.
The present invention propose for the single-phase instantaneous artificial earthing's short-circuit test system of transmission line of electricity, 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 present invention propose for the single-phase instantaneous artificial earthing's short-circuit test system of transmission line of electricity, its advantage is:
(1) of the present invention 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 invention for the single-phase instantaneous artificial earthing's short-circuit test system of transmission line of electricity, have good security, the earth current of ground short circuit fault is very large, often reaches tens of kilo-amperes, and in pilot system of the present invention, take electric wire winding, can avoid the security risk of testing crew.
(3) of the present invention 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 for the single-phase instantaneous artificial earthing's short-circuit test system of transmission line of electricity that the present invention 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 present invention propose for the single-phase instantaneous artificial earthing's short-circuit test system of transmission line of electricity, 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 pilot system:
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.
Of the present invention for the single-phase instantaneous artificial earthing's short-circuit test system of transmission line of electricity, 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. one kind for the single-phase instantaneous artificial earthing's short-circuit test system of transmission line of electricity, it is characterized in that this pilot system 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.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410200219.6A CN104049158A (en) | 2014-05-13 | 2014-05-13 | Single-phase instant artificial grounding short-circuit test system for power transmission line |
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| CN201410200219.6A CN104049158A (en) | 2014-05-13 | 2014-05-13 | Single-phase instant artificial grounding short-circuit test system for power transmission line |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849586A (en) * | 2015-04-22 | 2015-08-19 | 南方电网科学研究院有限责任公司 | Region screening method for alternating current short circuit test |
| 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 |
| CN107515354A (en) * | 2017-10-12 | 2017-12-26 | 国家电网公司 | A kind of circuit artificial earthing short-circuit test overall process current detecting system |
| CN109061392A (en) * | 2018-09-13 | 2018-12-21 | 广东电网有限责任公司 | A kind of power transmission line phase fault experimental rig |
| 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 |
| CN109212361A (en) * | 2018-10-24 | 2019-01-15 | 云南电网有限责任公司电力科学研究院 | A kind of power transmission line phase fault test method and system |
| CN109387750A (en) * | 2018-12-21 | 2019-02-26 | 云南电网有限责任公司电力科学研究院 | The ultra-high-tension power transmission line short circuit grounding striking pilot system and method for vertical lift |
| CN109406976A (en) * | 2018-12-21 | 2019-03-01 | 云南电网有限责任公司电力科学研究院 | A kind of ultra-high-tension power transmission line instantaneous short-circuit test device and method of unmanned plane driving |
| CN109406930A (en) * | 2018-10-24 | 2019-03-01 | 云南电网有限责任公司电力科学研究院 | A kind of method that U-shaped short-circuit test device is installed in livewire work |
| CN109861186A (en) * | 2019-03-13 | 2019-06-07 | 国网陕西省电力公司电力科学研究院 | A kind of 10kV arcing ground controllable device |
| 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 |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588729A (en) * | 2004-10-14 | 2005-03-02 | 南京南瑞继保电气有限公司 | Re-switch on method for electric tansmission device |
| WO2008026944A1 (en) * | 2006-08-30 | 2008-03-06 | Gallagher Group Limited | Improvements in and relating to electric fence systems |
| CN101667722A (en) * | 2008-09-05 | 2010-03-10 | 唐翊程 | Method for melting ice and snow on power transmission and distribution lines by low voltage and high current |
| WO2010087563A1 (en) * | 2009-01-30 | 2010-08-05 | Jun Myung Soo | Power distribution system using 3-phase power cable |
| CN201716374U (en) * | 2010-01-22 | 2011-01-19 | 云南电力试验研究院(集团)有限公司 | Portable type manual short circuit test transmitting device |
| CN202649378U (en) * | 2012-04-20 | 2013-01-02 | 山西省电力公司大同供电分公司 | Electric transmission line failure finding system |
| CN203222389U (en) * | 2013-04-24 | 2013-10-02 | 国家电网公司 | Ground resistance testing line winding and unwinding device |
| CN103336218A (en) * | 2013-06-25 | 2013-10-02 | 国家电网公司 | Reclosing criterion system for hybrid transmission line to ground short circuit fault |
-
2014
- 2014-05-13 CN CN201410200219.6A patent/CN104049158A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588729A (en) * | 2004-10-14 | 2005-03-02 | 南京南瑞继保电气有限公司 | Re-switch on method for electric tansmission device |
| WO2008026944A1 (en) * | 2006-08-30 | 2008-03-06 | Gallagher Group Limited | Improvements in and relating to electric fence systems |
| CN101667722A (en) * | 2008-09-05 | 2010-03-10 | 唐翊程 | Method for melting ice and snow on power transmission and distribution lines by low voltage and high current |
| WO2010087563A1 (en) * | 2009-01-30 | 2010-08-05 | Jun Myung Soo | Power distribution system using 3-phase power cable |
| CN201716374U (en) * | 2010-01-22 | 2011-01-19 | 云南电力试验研究院(集团)有限公司 | Portable type manual short circuit test transmitting device |
| CN202649378U (en) * | 2012-04-20 | 2013-01-02 | 山西省电力公司大同供电分公司 | Electric transmission line failure finding system |
| CN203222389U (en) * | 2013-04-24 | 2013-10-02 | 国家电网公司 | Ground resistance testing line winding and unwinding device |
| CN103336218A (en) * | 2013-06-25 | 2013-10-02 | 国家电网公司 | Reclosing criterion system for hybrid transmission line to ground short circuit fault |
Non-Patent Citations (1)
| Title |
|---|
| 王科鹏: ""10kV线路人工三相短路接地试验"", 《云南电力技术》, vol. 38, no. 6, 31 December 2010 (2010-12-31) * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849586A (en) * | 2015-04-22 | 2015-08-19 | 南方电网科学研究院有限责任公司 | Region screening method for alternating current short circuit test |
| 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 |
| CN107515354A (en) * | 2017-10-12 | 2017-12-26 | 国家电网公司 | A kind of circuit artificial earthing short-circuit test overall process current detecting system |
| CN107515354B (en) * | 2017-10-12 | 2024-04-19 | 国家电网公司 | Whole-process current testing system for line manual grounding short circuit test |
| CN109061392A (en) * | 2018-09-13 | 2018-12-21 | 广东电网有限责任公司 | A kind of power transmission line phase fault experimental rig |
| CN109061392B (en) * | 2018-09-13 | 2024-03-22 | 广东电网有限责任公司 | Interphase short-circuit test device for power transmission line |
| CN109061358B (en) * | 2018-10-24 | 2021-10-26 | 云南电网有限责任公司电力科学研究院 | Method and system for testing single-phase instantaneous grounding short circuit of power transmission line |
| 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 |
| CN109212361A (en) * | 2018-10-24 | 2019-01-15 | 云南电网有限责任公司电力科学研究院 | A kind of power transmission line phase fault test method and system |
| CN109406930A (en) * | 2018-10-24 | 2019-03-01 | 云南电网有限责任公司电力科学研究院 | A kind of method that U-shaped short-circuit test device is installed in livewire work |
| CN109387750A (en) * | 2018-12-21 | 2019-02-26 | 云南电网有限责任公司电力科学研究院 | The ultra-high-tension power transmission line short circuit grounding striking pilot system and method for vertical lift |
| CN109406976A (en) * | 2018-12-21 | 2019-03-01 | 云南电网有限责任公司电力科学研究院 | A kind of ultra-high-tension power transmission line instantaneous short-circuit test device and method of unmanned plane driving |
| CN109861186B (en) * | 2019-03-13 | 2020-06-30 | 国网陕西省电力公司电力科学研究院 | 10kV electric arc grounding controllable device |
| CN109861186A (en) * | 2019-03-13 | 2019-06-07 | 国网陕西省电力公司电力科学研究院 | A kind of 10kV arcing ground controllable device |
| 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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Application publication date: 20140917 |