CN205826804U - The defect model of floating potential discharge in a kind of Simulated GlS - Google Patents
The defect model of floating potential discharge in a kind of Simulated GlS Download PDFInfo
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- CN205826804U CN205826804U CN201620722577.8U CN201620722577U CN205826804U CN 205826804 U CN205826804 U CN 205826804U CN 201620722577 U CN201620722577 U CN 201620722577U CN 205826804 U CN205826804 U CN 205826804U
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- 230000007547 defect Effects 0.000 title claims abstract description 18
- 239000011148 porous material Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 2
- 238000011161 development Methods 0.000 abstract description 5
- 238000007599 discharging Methods 0.000 abstract description 5
- 238000000354 decomposition reaction Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000004458 analytical method Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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Abstract
The application relates to the defect model of floating potential discharge in a kind of Simulated GlS, including being filled with SF6The casing of gas, tank floor is provided with ground electrode, the casing of ground electrode offside is plugged with high-field electrode, connect in high-field electrode bottom and have fixture, discharge cavities it is provided with in fixture, the upper and lower side of discharge cavities offers relative and through screw respectively, and the screw of upside is connected with high-field electrode, is connected with floating potentical body in the screw of downside；High-field electrode lower end is high voltage discharge electrode, and high voltage discharge electrode stretches in discharge cavities；Floating potentical body upper end is suspended discharge pole, and suspended discharge pole is stretched in discharge cavities；Discharging gap is left between high voltage discharge electrode and suspended discharge pole.Owing to implementing technique scheme, the application can be used for floating potential discharge defect common in Simulated GlS, can carry out measurement of partial discharge in conjunction with methods such as pulse current, superfrequency and decomposition components analyses, promote the development of GIS partial discharge detection technique.
Description
Technical field
The application relates to the defect model of floating potential discharge in a kind of Simulated GlS.
Background technology
Gas Insulated Switchgear(GIS) it is that a kind of novel electric power occurred middle 1960s sets
Standby, the various electrical equipments in transformer station are completely or partially combined in a metal shell closed by it, and are filled with certain
The SF with good insulating performance of air pressure6Gas.Compared with the power transmission and transforming equipment of open type, it has many advantages, such as
Floor space is little, and spatial volume is little, safe and reliable to operation, beneficially environmental conservation, and the time between overhauls(TBO) is long, installation workload little and
Little etc. by external environmental interference.Through the development of more than 50 years, GIS technology development quickly and was rapidly applied to various countries
Power system.Along with the development of national economy, society is more and more higher to the requirement of power supply reliability.GIS is weight in power system
The power equipment wanted, is to ensure that the basis of power supply reliability.Although GIS reliability of operation is the highest, but can not keep away inside it
Exempt from ground existing defects, produce shelf depreciation, cause insulation degradation, cause equipment fault.
In GIS, it may appear that conductor loose contact, causing high pressure or ground floating potential, this is that GIS device is the most contingent
Problem.When electric field intensity is higher, it may appear that spark discharge and arc discharge even occurs in partial discharge phenomenon, causes SF6Gas
Body decomposes, and causes insulation degradation.This is that a class occurs at little SF6Defect in air gap, the SF near discharge channel6Gas and
Diffusion is less likely to occur decomposition components, uses traditional decomposition components analysis may be unfavorable for timely discovering device fault, and having must
Floating potential defect model research experiment to be built, to diagnose whether floating potential discharge occur inside actual GIS device.
Summary of the invention
The purpose of the application is to propose a kind of simulation that can be used for floating potential discharge defect common in Simulated GlS
The defect model of floating potential discharge in GIS.
The purpose of the application is achieved in that the defect model of floating potential discharge in a kind of Simulated GlS, including being filled with
SF6The casing of gas, it is characterised in that: tank floor is provided with ground electrode, at the center, casing upper surface of ground electrode offside
Being plugged with high-field electrode, connecting in high-field electrode bottom has fixture, is provided with discharge cavities in fixture, discharge cavities
Upper and lower side offers relative and through screw respectively, and the screw of upside is connected with high-field electrode, is connected with in the screw of downside
Floating potentical body；High-field electrode top is stretched out casing and is connected with high voltage power supply, and high-field electrode lower end is high voltage discharge electrode, and height presses
Electrode stretches in discharge cavities；Floating potentical body upper end is suspended discharge pole, and suspended discharge pole is stretched in discharge cavities；Height presses
Discharging gap is left between electrode and suspended discharge pole.
Through hole that is symmetrical and that connect is offered with discharge cavities on described fixture sidewall.
Described fixture is insulator.
Described floating potentical body also includes the indwelling spherical end outside fixture, and this spherical end is positioned at ground electricity
Above pole.
Described casing top is further opened with filling, exit air-filled pore and steam vent.
Owing to implementing technique scheme, the application can be used for floating potential discharge defect common in Simulated GlS, permissible
Carry out measurement of partial discharge in conjunction with methods such as pulse current, superfrequency and decomposition components analyses, promote GIS partial discharge detection
The development of technology.
Accompanying drawing explanation
The concrete structure of the application is given by following drawings and Examples:
Fig. 1 is the structural representation of the defect model of floating potential discharge in a kind of Simulated GlS.
Legend: 1, air-filled pore, 2, high-field electrode, 2-1, high voltage discharge electrode, 3, steam vent, 4, casing, 5, fixture, 6, logical
Hole, 7, floating potentical body, 7-1, suspended discharge pole, 8, ground electrode, 9, discharge cavities.
Detailed description of the invention
The application is not limited by following embodiment, can determine specifically according to the technical scheme of the application and practical situation
Embodiment.
Embodiment: as it is shown in figure 1, the defect model of floating potential discharge includes being filled with SF in a kind of Simulated GlS6Gas
Casing 4, is provided with ground electrode 8 in casing 4 bottom surface, is plugged with high-field electrode 2 at the center, casing 4 upper surface of ground electrode 8 offside,
Connecting in high-field electrode 2 bottom and have fixture 5, be provided with discharge cavities 9 in fixture 5, the upper and lower side of discharge cavities 9 is divided
Not offering relative and through screw, the screw of upside is connected with high-field electrode 2, is connected with floating potential in the screw of downside
Body 7.High-field electrode 2 top is stretched out casing 4 and is connected with high voltage power supply, and high-field electrode 2 lower end is high voltage discharge electrode 2-1, and height presses
Electrode 2-1 stretches in discharge cavities 9；Floating potentical body 7 upper end is suspended discharge pole 7-1, and suspended discharge pole 7-1 stretches into electric discharge sky
In chamber 9.Discharging gap is left between high voltage discharge electrode 2-1 and suspended discharge pole 7-1.
Through hole 6 that is symmetrical and that connect is offered with discharge cavities 9, it is ensured that discharge cavities 9 on described fixture 5 sidewall
With conducting in casing 4, thus electric discharge can be made to occur in discharging gap and do not occur fixture along face.
Described fixture 5 is insulator.
Described floating potentical body 7 also includes the indwelling spherical end outside fixture 5, and this spherical end is positioned in ground
Above electrode 8.
Described high-field electrode 2 and ground electrode 8 select brass material to make, and high-field electrode 2 is with M4 externally threaded rod electricity
Pole, ground electrode 8 is the plectane of a diameter of 55mm, and ground electrode 8 center is provided with the guide rod in order to earth lead.
Described casing 4 top is further opened with filling, exit air-filled pore 1 and steam vent 3.
At the trial, high-field electrode 2 connecing ac high-voltage, ground electrode 8 ground connection, at full SF6Environment in gas tank
Under, macroscopic penetrability can be occurred in the discharging gap between high-field electrode and floating potentical body to discharge, electric discharge occurs
SF6In air gap, being not related to fixture 5, partial discharge test result shows that the application can outstanding in Simulated GlS equipment well
Floating current potential electric discharge.
Above technical characteristic constitutes the most preferred embodiment of the application, and it has stronger adaptability and most preferably implements effect
Really, inessential technical characteristic can be increased and decreased according to actual needs, meet the needs of different situations.
Claims (5)
1. a defect model for floating potential discharge in Simulated GlS, including being filled with SF6The casing of gas, it is characterised in that:
Tank floor is provided with ground electrode, is plugged with high-field electrode, under high-field electrode at the center, casing upper surface of ground electrode offside
Portion connects fixture, is provided with discharge cavities in fixture, and the upper and lower side of discharge cavities offers relative and through respectively
Screw, the screw of upside is connected with high-field electrode, is connected with floating potentical body in the screw of downside；High-field electrode top is stretched out
Casing is connected with high voltage power supply, and high-field electrode lower end is high voltage discharge electrode, and high voltage discharge electrode stretches in discharge cavities；Floating potential
Body upper end is suspended discharge pole, and suspended discharge pole is stretched in discharge cavities；Leave between high voltage discharge electrode and suspended discharge pole and put
Electricity gap.
The defect model of floating potential discharge in a kind of Simulated GlS the most as claimed in claim 1, it is characterised in that: described solid
Through hole that is symmetrical and that connect is offered with discharge cavities on locking member sidewall.
The defect model of floating potential discharge in a kind of Simulated GlS the most as claimed in claim 2, it is characterised in that: described solid
Locking member is insulator.
The defect model of floating potential discharge in a kind of Simulated GlS the most as claimed in claim 1, it is characterised in that: described outstanding
Floating current potential body also includes the indwelling spherical end outside fixture, and this spherical end is positioned at above ground electrode.
The defect model of floating potential discharge in a kind of Simulated GlS the most as claimed in claim 1, it is characterised in that: described case
Body top is further opened with filling, exit air-filled pore and steam vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620722577.8U CN205826804U (en) | 2016-07-11 | 2016-07-11 | The defect model of floating potential discharge in a kind of Simulated GlS |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620722577.8U CN205826804U (en) | 2016-07-11 | 2016-07-11 | The defect model of floating potential discharge in a kind of Simulated GlS |
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| CN205826804U true CN205826804U (en) | 2016-12-21 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064756A (en) * | 2017-03-31 | 2017-08-18 | 中国南方电网有限责任公司电网技术研究中心 | The device of suspension electrode in a kind of Simulated GlS |
| CN107219444A (en) * | 2017-05-26 | 2017-09-29 | 广西电网有限责任公司电力科学研究院 | A kind of transformer suspended discharge analogue means |
| CN117538712A (en) * | 2024-01-09 | 2024-02-09 | 保定天威新域科技发展有限公司 | Discharge type and position switching device and discharge model |
-
2016
- 2016-07-11 CN CN201620722577.8U patent/CN205826804U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064756A (en) * | 2017-03-31 | 2017-08-18 | 中国南方电网有限责任公司电网技术研究中心 | The device of suspension electrode in a kind of Simulated GlS |
| CN107219444A (en) * | 2017-05-26 | 2017-09-29 | 广西电网有限责任公司电力科学研究院 | A kind of transformer suspended discharge analogue means |
| CN117538712A (en) * | 2024-01-09 | 2024-02-09 | 保定天威新域科技发展有限公司 | Discharge type and position switching device and discharge model |
| CN117538712B (en) * | 2024-01-09 | 2024-03-29 | 保定天威新域科技发展有限公司 | Discharge type and position switching device and discharge model |
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