CN106226669A - A kind of GIS combined-voltage Combined Trials System and method for - Google Patents
A kind of GIS combined-voltage Combined Trials System and method for Download PDFInfo
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- CN106226669A CN106226669A CN201610828259.4A CN201610828259A CN106226669A CN 106226669 A CN106226669 A CN 106226669A CN 201610828259 A CN201610828259 A CN 201610828259A CN 106226669 A CN106226669 A CN 106226669A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000007547 defect Effects 0.000 claims abstract description 82
- 238000012360 testing method Methods 0.000 claims abstract description 43
- 238000009413 insulation Methods 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 23
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 13
- 239000010703 silicon Substances 0.000 claims abstract description 13
- 239000002131 composite material Substances 0.000 claims abstract description 6
- 230000015556 catabolic process Effects 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 12
- 239000003990 capacitor Substances 0.000 claims description 7
- 239000004531 microgranule Substances 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 5
- 239000012212 insulator Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 8
- 230000001771 impaired effect Effects 0.000 description 3
- 230000009545 invasion Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000003556 assay Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000009666 routine test Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1254—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of gas-insulated power appliances or vacuum gaps
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a kind of GIS combined-voltage Combined Trials system and method, including metal shell cylinder and internal connection guide rod, metal shell cylinder two ends seal and use 4 pieces of dividing plates that metal shell cylinder is divided into 5 air chambers: one end air chamber is provided with the alternating current power supply in series by AC testing transformer and capacitance, and is connected with the defect cell air chamber of middle position by AC switching gas chamber；Other end air chamber is provided with the DC source in series by high voltage direct current generator and silicon stack, and is connected with the defect cell air chamber of middle position by DC side switching gas chamber；DC side switch is switched by direct current arrester ground connection by alternating-current lightning arrestor ground connection, AC.May be implemented in laboratory the experimental study under alternating current and direct current and alternating current-direct current composite voltage of the gas insulated combined electrical equipment insulation defect, establish laboratory basis for the accurately detection using dissimilar voltage waveform to carry out gas insulated combined electrical equipment insulation fault.
Description
Technical field
The present invention relates to a kind of electrical equipment laboratory test system, a kind of gas-insulating and fully-enclosed combined electrical apparatus
(Gas Insulated Switchgear, GIS) combined-voltage Combined Trials System and method for.
Background technology
Gas-insulating and fully-enclosed combined electrical apparatus (Gas Insulated Switchgear, GIS) because of have floor space little,
Good insulating properties and be widely used in electrical network, but due to its full-closed structure, thing once occurs
Therefore, the consequence score caused is serious much from opening-type equipment, and its fault restoration is complex.And in actual applications, GIS is past
Toward using field-installed mode to install, owing to site environment is severe, assembling cycle is short, and easily there was a mechanical failure, as touched
The head insulation defect such as loose contact, free metal microgranule.Use exchange and surge voltage that the insulation defect of GIS is detected
Through being routine test, but use alternating voltage that free metal microgranule carries out detection and be unable to reach preferably effect, and, conventional
Test cannot realize the complete detection to dissimilar insulation defect.
Summary of the invention
The problem existed for above-mentioned prior art, the present invention provide a kind of GIS combined-voltage Combined Trials system with
Method, can realize individually exchanging, independent direct current and the alternating current-direct current composite voltage test of different proportion, for GIS at dissimilar electricity
The test of pressure provides assay device, can realize the complete detection to dissimilar insulation defect.
Technical scheme:
A kind of GIS combined-voltage Combined Trials system, it is characterised in that include that metal shell cylinder and internal connection lead
Bar, metal shell cylinder two ends seal and use 4 pieces of dividing plates that metal shell cylinder is divided into 5 air chambers: one end air chamber is provided with
The alternating current power supply in series by AC testing transformer and capacitance, and by AC switching gas chamber and middle position
Defect cell air chamber is connected；Other end air chamber is provided with the DC source in series by high voltage direct current generator and silicon stack, and
It is connected with the defect cell air chamber of middle position by DC side switching gas chamber；DC side switch is connect by alternating-current lightning arrestor
Ground, AC switchs by direct current arrester ground connection.
Further, described defect cell is provided with the hand hole cover of implantable different types of insulation defect.
Further, described dividing plate is airproof disc insulator.
A kind of GIS combined-voltage Combined Trials method, it is characterised in that comprise the steps:
Step 1, for the operating defect of GIS, fault, make the defect model that can be positioned over the little indoor of defect；
Step 2, the SF reclaimed in defect cell6Gas, and two ends air chamber air pressure is down to safety range；
Step 3, open defect cell hand hole cover, according to the testing program arranged, lack in little indoor layout one GIS of defect
Fall into model；
Step 4, according to testing program, be filled with the SF setting air pressure in the little indoor of defect6Gas, stands T hour, friendship of closing
Stream side switch, disconnects DC side switch, makes AC testing transformer individually be connected with test loop, is obtained by regulation alternating voltage
To required test voltage, experimental study defect model insulation defect breakdown characteristics under different alternating voltage effects and local
Flash-over characteristic；
Step 5, the DC side that closes switch, and disconnect AC switch, make the independent phase in high voltage direct current generator and test loop
Even, obtaining required test voltage by regulation DC voltage, experimental study defect model is under different DC voltage effects
Insulation defect breakdown characteristics and Characteristics of Partial Discharge；
Step 6, simultaneously close AC switch with DC side switch, make AC testing transformer and high voltage direct current generator
It is connected with test loop, individually regulation AC testing transformer and the voltage magnitude of high voltage direct current generator simultaneously, composition difference
The alternating current-direct current composite voltage of ratio, experimental study defect model insulation defect under different proportion alternating current-direct current load voltage effect
Breakdown characteristics and Characteristics of Partial Discharge.
The invention has the beneficial effects as follows:
The first, AC and DC power supply voltage magnitude can independent regulation, it is possible to realize AC and DC voltage Combined Trials.
The second, the implantable different types of insulation defect in the little indoor of insulation defect, test efficiency is high.
3rd, single unit system volume is little, lightweight, compact conformation.
4th, device body partial discharge quantity is controlled, be prone to carry out shelf depreciation quantitative measurement.
5th, device can be avoided the cross interference of AC and DC voltage, prevent testing equipment impaired.
6th, DC voltage can be used to detect free metal microgranule, detection more effectively, utilizes AC and DC
Superposition can realize the complete detection to dissimilar insulation defect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention a kind of GIS combined-voltage Combined Trials system；
The labelling implication of accompanying drawing is as follows:
1: metal shell cylinder；2: guide rod；3: AC switchs；4: block capacitor；5: AC testing transformer；6: straight
Stream side switch；7: silicon stack；8: high voltage direct current generator；9: disc insulator；10: defect cell；11: alternating-current lightning arrestor；12: straight
Stream spark gap；13: hand hole cover.
Detailed description of the invention
With specific embodiment, technical solution of the present invention is described in further detail below in conjunction with the accompanying drawings, so that ability
The technical staff in territory can be better understood from the present invention and can be practiced, but illustrated embodiment is not as the limit to the present invention
Fixed.
A kind of GIS combined-voltage Combined Trials system, as it is shown in figure 1, include that metal shell cylinder 1 and internal connection lead
Bar 2, metal shell cylinder 1 two ends seal and use 4 pieces of dividing plates that metal shell cylinder 1 is divided into 5 air chambers: one end air chamber sets
Have an alternating current power supply in series by AC testing transformer 5 and block capacitor 4, and by AC switch 3 air chambers with in
Defect cell 10 air chamber of position, centre is connected；Other end air chamber is provided with by high voltage direct current generator 8 and silicon stack 7 in series
DC source, and switch 6 air chambers by DC side and be connected with defect cell 10 air chamber of middle position；DC side switch 6 leads to
Crossing alternating-current lightning arrestor 11 ground connection, AC switch 3 is by direct current arrester 12 ground connection.
In Fig. 1, defect cell 10 is provided with the hand hole cover 13 of implantable different types of insulation defect, and described dividing plate is
Airproof disc insulator 9.
The metal shell cylinder 1 left side in Fig. 1 has been sequentially arranged four disc insulators 9, metal shell cylinder to right side
Body 1 is divided into 5 independent air chambers, 5 independent air chamber independent groundings, can be filled with the SF of desirable pressure6Gas, integral installation
Standby volume is little, lightweight, compact conformation, and body partial discharge quantity is controlled, can carry out shelf depreciation quantitative measurement.Described guide rod
On 2 from one end to the other end be sequentially arranged high voltage direct current generator 8, silicon stack 7, DC side switch 6, AC switch 3, every directly
Capacitor 4 and AC testing transformer 5.
DC side switch is used for suiting DC source, and by alternating-current lightning arrestor ground connection, prevents AC overvoltage to test
The invasion and attack of system and destruction.High voltage direct current generator is by high voltage silicon rectifier stack, DC side switch, alternating-current lightning arrestor and defect cell phase
Even, AC testing transformer is connected with defect cell by AC switch, block capacitor, direct current arrester, can avoid friendship,
The coupled interference of DC voltage, prevent testing equipment impaired.
High voltage direct current generator 8 is electrical insulation strength and the leakage current being specifically used to detect electrical device.Silicon stack 7
Effect is the output polarity controlling DC voltage, it is ensured that the voltage of single polarity is applied to GIS test unit (i.e. defect cell
10), it is preferable that silicon stack 7 is high voltage silicon rectifier stack 7, voltage range is between 1kV～1000kV.Block capacitor 4 is for isolated DC electricity
Pressure is applied on AC testing transformer, the effect of direct current arrester 12 be prevent overvoltage of direct current to the invasion and attack of pilot system and
Destroy.The applying suiting control alternating voltage switched by AC.The effect of alternating-current lightning arrestor 11 is to prevent from exchanging electricity
Press the invasion and attack to pilot system and destruction.The applying suiting control DC voltage switched by DC side.Preferably, exchange is lightning-arrest
Device 11, direct current arrester 12 all use gas-insulated structure form.
System comprises 5 independent air chambers altogether, wherein: AC testing transformer 5, block capacitor 4 are in 1 air chamber together,
AC switch 3, direct current arrester 12 are in 1 air chamber together, and high voltage direct current generator 8, high voltage silicon rectifier stack 7 are in 1 air chamber together,
DC side switch 6, alternating-current lightning arrestor 11 are in 1 air chamber together, and defect cell 10 individually becomes 1 air chamber, can be the least to defect
The SF of room charge and discharge difference air pressure6Gas, can be at the little indoor different types of insulation defect of layout of defect, and then experimental study is different
The dissimilar insulation defect breakdown characteristics in composite voltage indoor little to defect and the local of type AC and DC voltage ratio example composition are put
The impact of electrical characteristics.Each air chamber independent grounding, independent sealed in metal shell cylinder 1, use SF6Gas-insulated.
Accordingly, a kind of GIS combined-voltage Combined Trials method, comprise the steps:
Step 1, for the operating defect of GIS, fault, make and can be positioned over the defect model in defect cell 10.One
As, for typical defect common in GIS operation, fault, make the defect model that can be positioned over the little indoor of defect, mainly wrap
Include free metal microgranule, suspension electrode, metallic bur power, insulative air gap etc..
Step 2, the SF reclaimed in defect cell 106Gas, and two ends air chamber air pressure is down to safety range；
Step 3, open defect cell 10 hand hole cover 13, (can set voluntarily according to practical situation according to the testing program arranged
Fixed), in defect cell 10, arrange a kind of GIS defect model, such as arrange a kind of GIS Exemplary insulative defect model.
Step 4, according to testing program, in defect cell 10, be filled with the SF setting air pressure6Gas, (such as 48 is little to stand T
Time) hour, the AC that closes switch 3, disconnect DC side switch 6, make AC testing transformer 5 individually be connected with test loop,
Required test voltage is obtained, the insulation under different alternating voltage effects of the experimental study defect model by regulation alternating voltage
Defect breakdown characteristics and Characteristics of Partial Discharge.
Step 5, the DC side that closes switch 6, disconnects AC switch 3, makes high voltage direct current generator 8 independent with test loop
Being connected, obtain required test voltage by regulation DC voltage, experimental study defect model is under different DC voltage effects
Insulation defect breakdown characteristics and Characteristics of Partial Discharge.
Step 6, simultaneously close AC switch 3 with DC side switch 6, make AC testing transformer 5 and high direct voltage send out
Raw device 8 is connected with test loop simultaneously, individually regulation AC testing transformer 5 and the voltage magnitude of high voltage direct current generator 8, group
Become the alternating current-direct current composite voltage of different proportion, exhausted under different proportion alternating current-direct current load voltage effect of experimental study defect model
Edge defect breakdown characteristics and Characteristics of Partial Discharge.
Wherein, disconnect AC switch 3 and switch 6 with DC side, repeat step 4-6, experimental study difference SF6Gas pressure
Under defect model breakdown characteristics and Characteristics of Partial Discharge；Disconnect AC switch 3 and switch 6 with DC side, repeat step 3-6,
The breakdown characteristics of experimental study difference GIS Exemplary insulative defect and Characteristics of Partial Discharge, including free metal microgranule, suspend electricity
Pole, metallic bur power and insulative air gap.
The invention has the beneficial effects as follows:
The first, AC and DC power supply voltage magnitude can independent regulation, it is possible to realize AC and DC voltage Combined Trials.
The second, the implantable different types of insulation defect in the little indoor of insulation defect, test efficiency is high.
3rd, single unit system volume is little, lightweight, compact conformation.
4th, device body partial discharge quantity is controlled, be prone to carry out shelf depreciation quantitative measurement.
5th, device can be avoided the cross interference of AC and DC voltage, prevent testing equipment impaired.
6th, DC voltage can be used to detect free metal microgranule, detection more effectively, utilizes AC and DC
Superposition can realize the complete detection to dissimilar insulation defect.
Above GIS combined-voltage Combined Trials system and method provided by the present invention is described in detail, this
Principle and the embodiment of embodiment explanation are only used for helping to understand method and the core concept thereof of the present invention；Simultaneously for this
Skilled person, according to the thought of the present invention, the most all will change, and these change
In place of change all within the scope of the present invention, the present embodiment should not be construed as limitation of the present invention.
Claims (10)
1. a GIS combined-voltage Combined Trials system, it is characterised in that include metal shell cylinder (1) and internal connection
Guide rod (2), metal shell cylinder (1) two ends seal and use 4 pieces of dividing plates that metal shell cylinder (1) is divided into 5 air chambers: one
End air chamber is provided with the alternating current power supply in series by AC testing transformer (5) and block capacitor (4), and is opened by AC
Close (3) air chamber to be connected with defect cell (10) air chamber of middle position；Other end air chamber is provided with by high voltage direct current generator (8)
The DC source in series with silicon stack (7), and by defect cell (10) gas of DC side switch (6) air chamber with middle position
Room is connected；DC side switch (6) is by alternating-current lightning arrestor (11) ground connection, and AC switch (3) is by direct current arrester (12)
Ground connection.
A kind of GIS combined-voltage Combined Trials system the most according to claim 1, it is characterised in that described defect is little
Room (10) is provided with the hand hole cover (13) of implantable different types of insulation defect.
A kind of GIS combined-voltage Combined Trials system the most according to claim 1, it is characterised in that described dividing plate is equal
For airproof disc insulator (9).
A kind of GIS combined-voltage Combined Trials system the most according to claim 1, it is characterised in that described silicon stack (7)
For high voltage silicon rectifier stack (7), voltage range is between 1kV～1000kV.
A kind of GIS combined-voltage Combined Trials system the most according to claim 1, it is characterised in that each air chamber list
Solely ground connection.
A kind of GIS combined-voltage Combined Trials system the most according to claim 1, it is characterised in that described exchange keeps away
Thunder device (11), direct current arrester (12) all use gas-insulated structure form.
7. a GIS combined-voltage Combined Trials method, it is characterised in that comprise the steps:
Step 1, for the operating defect of GIS, fault, making can be positioned over the defect model in defect cell (10)；
Step 2, the SF reclaimed in defect cell (10)6Gas, and two ends air chamber air pressure is down to safety range；
Step 3, open defect cell (10) hand hole cover (13), according to the testing program arranged, layout defect cell (10) in
A kind of GIS defect model；
Step 4, according to testing program, in defect cell (10), be filled with the SF setting air pressure6Gas, stands T hour, friendship of closing
Stream side switch (3), disconnects DC side switch (6), makes AC testing transformer (5) individually be connected with test loop, by regulation
Alternating voltage obtains required test voltage, and experimental study defect model insulation defect under different alternating voltage effects punctures
Characteristic and Characteristics of Partial Discharge；
Step 5, the DC side that closes switch (6), disconnect AC switch (3), makes high voltage direct current generator (8) single with test loop
Solely being connected, obtain required test voltage by regulation DC voltage, experimental study defect model is in different DC voltage effects
Under insulation defect breakdown characteristics and Characteristics of Partial Discharge；
Step 6, simultaneously close AC switch (3) and DC side switch (6), make AC testing transformer (5) and high direct voltage
Generator (8) is connected with test loop simultaneously, individually regulates AC testing transformer (5) and the electricity of high voltage direct current generator (8)
Pressure amplitude value, the alternating current-direct current composite voltage of composition different proportion, experimental study defect model is at different proportion alternating current-direct current load voltage
Insulation defect breakdown characteristics under Zuo Yong and Characteristics of Partial Discharge.
A kind of GIS combined-voltage Combined Trials method the most according to claim 7, it is characterised in that disconnect AC
Switch (3) switchs (6) with DC side, repeats step 4-6, experimental study difference SF6Defect model under gas pressure punctures spy
Property and Characteristics of Partial Discharge.
A kind of GIS combined-voltage Combined Trials method the most according to claim 7, it is characterised in that disconnect AC
Switch (3) switchs (6) with DC side, repeats step 3-6, the breakdown characteristics drawn game of experimental study difference GIS Exemplary insulative defect
Portion's flash-over characteristic, including free metal microgranule, suspension electrode, metallic bur power and insulative air gap.
A kind of GIS combined-voltage Combined Trials method the most according to claim 7, it is characterised in that described T=48.
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| CN201610828259.4A CN106226669A (en) | 2016-09-18 | 2016-09-18 | A kind of GIS combined-voltage Combined Trials System and method for |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908721A (en) * | 2017-04-18 | 2017-06-30 | 中国南方电网有限责任公司电网技术研究中心 | A kind of gas-insulated switchgear experimental rig and method |
| CN108152693A (en) * | 2018-01-29 | 2018-06-12 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Three support insulator fault simulating test platform of GIL equipment and simulation experiment method |
| CN108169640A (en) * | 2017-12-29 | 2018-06-15 | 中国电力科学研究院有限公司 | One kind is based on gas isolated combined high-voltage generating means and method |
| CN108387637A (en) * | 2018-05-11 | 2018-08-10 | 沈阳工业大学 | A kind of experimental provision that metal particle is innoxious and method |
| CN110146794A (en) * | 2019-05-28 | 2019-08-20 | 国网江苏省电力有限公司电力科学研究院 | Multivoltage is superimposed lower GIS/GIL pressure resistance and partial discharge test method and device |
| CN110763961A (en) * | 2019-10-22 | 2020-02-07 | 哈尔滨理工大学 | Alternating current-direct current breakdown experimental device |
| CN111352007A (en) * | 2020-04-01 | 2020-06-30 | 国网安徽省电力有限公司电力科学研究院 | Comprehensive evaluation method for defects of basin-type insulator of ultra/extra-high voltage GIS equipment |
| CN113109062A (en) * | 2020-01-10 | 2021-07-13 | 平高集团有限公司 | Metal particle trap trapping test device and method |
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| CN106908721A (en) * | 2017-04-18 | 2017-06-30 | 中国南方电网有限责任公司电网技术研究中心 | A kind of gas-insulated switchgear experimental rig and method |
| CN108169640A (en) * | 2017-12-29 | 2018-06-15 | 中国电力科学研究院有限公司 | One kind is based on gas isolated combined high-voltage generating means and method |
| CN108152693A (en) * | 2018-01-29 | 2018-06-12 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Three support insulator fault simulating test platform of GIL equipment and simulation experiment method |
| CN108152693B (en) * | 2018-01-29 | 2024-04-02 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | GIL equipment three-post insulator fault simulation test platform and simulation test method |
| CN108387637A (en) * | 2018-05-11 | 2018-08-10 | 沈阳工业大学 | A kind of experimental provision that metal particle is innoxious and method |
| CN108387637B (en) * | 2018-05-11 | 2023-09-19 | 沈阳工业大学 | Experimental device and method for harmlessness of metal particles |
| CN110146794A (en) * | 2019-05-28 | 2019-08-20 | 国网江苏省电力有限公司电力科学研究院 | Multivoltage is superimposed lower GIS/GIL pressure resistance and partial discharge test method and device |
| CN110763961A (en) * | 2019-10-22 | 2020-02-07 | 哈尔滨理工大学 | Alternating current-direct current breakdown experimental device |
| CN113109062A (en) * | 2020-01-10 | 2021-07-13 | 平高集团有限公司 | Metal particle trap trapping test device and method |
| CN111352007A (en) * | 2020-04-01 | 2020-06-30 | 国网安徽省电力有限公司电力科学研究院 | Comprehensive evaluation method for defects of basin-type insulator of ultra/extra-high voltage GIS equipment |
| CN111352007B (en) * | 2020-04-01 | 2022-03-22 | 国网安徽省电力有限公司电力科学研究院 | Comprehensive evaluation method for defects of basin-type insulator of ultra/extra-high voltage GIS equipment |
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Application publication date: 20161214 |