CN207096344U - A kind of 500kV GIS disc insulators VFTO experimental rigs - Google Patents
A kind of 500kV GIS disc insulators VFTO experimental rigs Download PDFInfo
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- CN207096344U CN207096344U CN201721119351.XU CN201721119351U CN207096344U CN 207096344 U CN207096344 U CN 207096344U CN 201721119351 U CN201721119351 U CN 201721119351U CN 207096344 U CN207096344 U CN 207096344U
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Abstract
The application is related to insulating material properties technical field of measurement and test, and in particular to a kind of 500kV GIS disc insulators VFTO experimental rigs.GIS disc insulators surface meeting accumulating surfaces electric charge in actual motion, the presence of surface charge will cause internal field to be distorted, and cause insulator edge flashing under VFTO；Spatial electronic field measurement is interfered so that measurement error becomes big.The application provides a kind of 500kV GIS disc insulators VFTO experimental rigs, including electric field measurement unit, data processing unit and supply unit；The electric field measurement unit includes positive pressure tank module, high-field electrode module, disc insulator module to be measured and sensor assembly；The data processing unit includes data computation module and display module；The supply unit includes high-voltage power module, and the high-voltage power module is connected with the high-field electrode module.Measurement interference is small, and error is small, and precision is high.
Description
Technical field
The application is related to insulating material properties technical field of measurement and test, and in particular to a kind of 500kV GIS disc insulators
VFTO experimental rigs.
Background technology
Disc insulator typically uses adhesive by insulating part (such as porcelain piece) and metal-ware (such as steel pin, chapeau de fer, flange)
Glued or machinery, which clamps, to be formed.In terms of spatial electronic field measurement, the sensor main applied to measuring high electric field will have M-Z at present
Interfere type and integrated common path interference type, based on the electric-field sensor of M-Z interference, half-wave field regime be 1500kV/m~
6000kV/m, can good response ms, μ s, ns magnitude waveform, meet measuring high electric field to sensitivity and the requirement of frequency band.It is based on
The integrated electric-field sensor of common path interference is mainly used in the measurement of dielectric surface discharge electric field, and the purpose using this structure is to make
The sub- full dielectric cure sensor of mm levels, to reduce the interference to former field.And the research of spatial high-frequency electric-field sensor under VFTO is directed to,
Requirement to sensor is then harsher.Spherical electric-field sensor, it is with a width of 10Hz~25MHz, maximum detection field strength
10kV/cm, a diameter of 4cm of metal ball, are applied to the measurement of VFTO external electrical fields, and result of study shows by breaker shell
The electric field fundamental frequency of radiation is about 10MHz~20MHz, with the change of distance between sensor and shell, the change of electric field magnitude
Scope is 5kV/m~60kV/m.Impulse electric field is popped one's head in, and, with a width of 3.5Hz~1GHz, maximum detection field strength is 10kV/cm for it, warp
The a diameter of 1cm of metal shell, length 6cm after improvement.The test of ESD radiation fields has been carried out using the type sensor, has been drawn
The basic law of Electric Field Distribution.Active electric field measuring system, using dipole bar antenna as reception antenna, the band of measuring system
A width of 540Hz~40MHz, maximum detection field strength are 40kV/m.Tsing-Hua University have studied streamer using M-Z interference electric-field sensors
Discharge electric field, find the electric-field jump phenomenon caused by streamer.Analyzed more than, at present, both at home and abroad to photoelectric integration electric-field
Also in the starting stage, its application is mainly used in measuring streamer diverse location electric-field intensity, and overhead line for the research of sensor
The electric-field intensity of surrounding.
GIS disc insulators surface meeting accumulating surfaces electric charge in actual motion, the presence of surface charge will cause part
Electric field is distorted, and causes insulator edge flashing under VFTO；Spatial electronic field measurement is interfered so that measurement error becomes
Greatly.
Utility model content
The purpose of the application is to solve the meeting of the GIS disc insulators surface in actual motion accumulating surfaces electric charge, table
The presence of surface charge will cause internal field to be distorted, and cause insulator edge flashing under VFTO；Spatial electronic field measurement is made
Into interference so that measurement error becomes the problem of big.
Therefore, the utility model embodiment provides following technical scheme：A kind of 500kV GIS disc insulators VFTO examinations
Experiment device, including electric field measurement unit, data processing unit and supply unit；
The electric field measurement unit includes positive pressure tank module, and high-field electrode mould is provided with the positive pressure tank module
Block, disc insulator module to be measured is provided with the high-field electrode module, is provided with the disc insulator module to be measured
Some sensor assemblies；
The data processing unit includes data computation module, and the data computation module is connected with display module, institute
Data computation module is stated with the sensor assembly to be connected；
The supply unit includes high-voltage power module, and the high-voltage power module is connected with the high-field electrode module
Connect.
Alternatively, the high-field electrode module is in list structure, and the high-field electrode module level is arranged at the malleation
In container module, the high-field electrode module left end is connected by wire with the high-voltage power module.
Alternatively, the disc insulator module to be measured is arranged on the high-field electrode module outer surface, described to be measured
Disc insulator module is arranged at the high-field electrode module middle part；The disc insulator module level section to be measured is in
" V " shape.
Alternatively, the sensor assembly is included along the linear array of disc insulator module diameter axis to be measured point
The sensor of cloth, the sensor assembly are that the center of circle is in the array distribution that changes the outfit using the disc insulator module centers to be measured.
Alternatively, the data computation module is connected with the sensor assembly by optical fiber.
Alternatively, the data computation module includes being based on electroluminescent electric charge behavior real-time monitored assessment system.
Alternatively, the disc insulator module extension to be measured is provided with flange-interface, the flange-interface with it is described just
Connected on the outside of pressure vessel module.
Alternatively, the disc insulator module to be measured includes the miniatures of 500kV GIS disc insulators.
The technical scheme that the utility model embodiment provides includes following beneficial effect：The application passes through benzvalene form to be measured is exhausted
Edge submodule is arranged in high-field electrode module, while sets some sensor assemblies in disc insulator module to be measured, is made
The conclusion (of pressure testing)s such as the wave character of VFTO overall process waveforms, breakdown number can be combined by obtaining whole device, be completed different modified
The electric field measurement of disc insulator miniatures diverse location different directions under VFTO effects, it is final to propose to be based on insulator material
The modified controlled charge regulation and control of material and the VFTO edge flashing models of electric Field Optimization；Measurement interference is small, and error is small, and precision is high.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
Accompanying drawing be briefly described, it should be apparent that, for those of ordinary skills, do not paying creative labor
On the premise of, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of 500kV GIS disc insulators VFTO experimental rig structural representations in the utility model embodiment；
Symbol in Fig. 1 is expressed as：
1- electric field measurement units, 2- data processing units, 3- supply units, 4- positive pressure tank modules, 5- high-field electrode moulds
Block, 6- disc insulator modules to be measured, 7- sensor assemblies, 8- data computation modules, 9- display modules, 10- high voltage power supply moulds
Block, 11- flange-interfaces.
Embodiment
Accompanying drawing herein is merged in specification and forms the part of this specification, show meet it is of the present utility model
Embodiment, and for explaining principle of the present utility model together with specification.
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, for ordinary skill people
For member, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.
Below by embodiment, and with reference to accompanying drawing, the technical scheme of the application is described in further detail.
Embodiment one
Referring to Fig. 1, a kind of 500kV GIS disc insulators VFTO experimental rigs provided for the utility model embodiment,
Including electric field measurement unit 1, data processing unit 2 and supply unit 3；
The electric field measurement unit 1 includes positive pressure tank module 4, and high-field electrode is provided with the positive pressure tank module 4
Module 5, is provided with disc insulator module 6 to be measured in the high-field electrode module 5, in the disc insulator module 6 to be measured
It is provided with some sensor assemblies 7；
The data processing unit 2 includes data computation module 8, and the data computation module 8 is connected with display module 9
Connect, the data computation module 8 is connected with the sensor assembly 7；
The supply unit 3 includes high-voltage power module 9, the high-voltage power module 9 and the phase of high-field electrode module 5
Connection.
The application specific implementation process：Sensor assembly 7 measures the transient state electricity on the surface of disc insulator module 6 to be measured
The photoelectric integration electric-field of field.Sensor assembly 7 handles data the data transfer measured to data computation module 8, place
Data after reason are shown by display module 9.
During measurement surface field strength, for each measurement position, apply 10 opposed polarity VFTO pulses, and per minor tick
For 30s, it is used as oscillograph trigger signal by gathering VFTO synchronizing signals to be acquired.Complete single direction electric field measurement
Afterwards, positive pressure tank module 4 is opened, rotation sensor module 7 to other angles, can so be acted on completing other directions VFTO
The measurement of lower electric field.Finally, the conclusion (of pressure testing) such as the wave character with reference to VFTO overall process waveforms, breakdown number, completes difference and changes
Property after disc insulator module 6 to be measured diverse location different directions under VFTO effects electric field measurement, it is final to propose based on exhausted
Edge material modification controlled charge regulates and controls and the VFTO edge flashing models of electric Field Optimization.
Embodiment two
Referring to Fig. 1, a kind of 500kV GIS disc insulators VFTO experimental rigs provided for the utility model embodiment,
Including electric field measurement unit 1, data processing unit 2 and supply unit 3；
The electric field measurement unit 1 includes positive pressure tank module 4, and high-field electrode is provided with the positive pressure tank module 4
Module 5, is provided with disc insulator module 6 to be measured in the high-field electrode module 5, in the disc insulator module 6 to be measured
It is provided with some sensor assemblies 7；
The data processing unit 2 includes data computation module 8, and the data computation module 8 is connected with display module 9
Connect, the data computation module 8 is connected with the sensor assembly 7；
The supply unit 3 includes high-voltage power module 9, the high-voltage power module 9 and the phase of high-field electrode module 5
Connection.
Alternatively, the high-field electrode module 5 is in list structure, the high-field electrode module 5 be horizontally placed on it is described just
In pressure vessel module 4, the left end of high-field electrode module 5 is connected by wire with the high-voltage power module 10.
Alternatively, the disc insulator module 6 to be measured is arranged on the outer surface of high-field electrode module 5, described to treat
Survey disc insulator module 6 and be arranged at the middle part of high-field electrode module 5；The disc insulator module to be measured 6 is horizontal
Section is V-shaped.
Alternatively, the sensor assembly 7 is included along the linear array of diameter axis of disc insulator module 6 to be measured
The sensor of distribution, the sensor assembly 7 are that the center of circle is divided in the array that changes the outfit using the center of disc insulator module 6 to be measured
Cloth.
Alternatively, the data computation module 8 is connected with the sensor assembly 7 by optical fiber.
Alternatively, the data computation module 8 includes being based on electroluminescent electric charge behavior real-time monitored assessment system.
The application specific implementation process：, it is necessary to be completed using sensor assembly 7 during progress surface electric field intensity measurement.Measurement
Before, sensor assembly 7 is installed in the test cavity body of positive pressure tank module 4, is fixed on by support close to benzvalene form to be measured
Diverse location at insulation submodule 6 surface, the optical signal of sensor assembly 7 are propagated by optical fiber, and optical fiber passes through positive pressure tank
During the side wall of module 4, sealed by poured with epoxy resin.Sensor assembly 7 measures the surface of disc insulator module 6 to be measured
The photoelectric integration electric-field of Transient Electric Field.Sensor assembly 7 by the data transfer measured to data computation module 8 to data at
Reason, the data after processing are shown by display module 9.
Intend positive and negative two surfaces being carried out under VFTO effects for disc insulator 3 to be measured the measurement of electric field, Mei Gebiao
Choose three points in face：Insulator and the intersection upper surface of flange-interface 11, insulator and central conductor interface upper surface, with
And insulator middle part upper surface；It is respectively level to measure direction of an electric field, it is vertical and with plane direction at 45 °.
During measurement surface field strength, for each measurement position, apply 10 opposed polarity VFTO pulses, and per minor tick
For 30s, it is used as oscillograph trigger signal by gathering VFTO synchronizing signals to be acquired.Complete single direction electric field measurement
Afterwards, positive pressure tank module 4 is opened, rotation sensor module 7 to other angles, can so be acted on completing other directions VFTO
The measurement of lower electric field.Finally, the conclusion (of pressure testing) such as the wave character with reference to VFTO overall process waveforms, breakdown number, completes difference and changes
Property after disc insulator module 6 to be measured diverse location different directions under VFTO effects electric field measurement, it is final to propose based on exhausted
Edge material modification controlled charge regulates and controls and the VFTO edge flashing models of electric Field Optimization.
Embodiment three
Referring to Fig. 1, a kind of 500kV GIS disc insulators VFTO experimental rigs provided for the utility model embodiment,
Including electric field measurement unit 1, data processing unit 2 and supply unit 3；
The electric field measurement unit 1 includes positive pressure tank module 4, and high-field electrode is provided with the positive pressure tank module 4
Module 5, is provided with disc insulator module 6 to be measured in the high-field electrode module 5, in the disc insulator module 6 to be measured
It is provided with some sensor assemblies 7；
The data processing unit 2 includes data computation module 8, and the data computation module 8 is connected with display module 9
Connect, the data computation module 8 is connected with the sensor assembly 7；
The supply unit 3 includes high-voltage power module 9, the high-voltage power module 9 and the phase of high-field electrode module 5
Connection.
Alternatively, the high-field electrode module 5 is in list structure, the high-field electrode module 5 be horizontally placed on it is described just
In pressure vessel module 4, the left end of high-field electrode module 5 is connected by wire with the high-voltage power module 10.
Alternatively, the disc insulator module 6 to be measured is arranged on the outer surface of high-field electrode module 5, described to treat
Survey disc insulator module 6 and be arranged at the middle part of high-field electrode module 5；The disc insulator module to be measured 6 is horizontal
Section is V-shaped.
Alternatively, the sensor assembly 7 is included along the linear array of diameter axis of disc insulator module 6 to be measured
The sensor of distribution, the sensor assembly 7 are that the center of circle is divided in the array that changes the outfit using the center of disc insulator module 6 to be measured
Cloth.
Alternatively, the data computation module 8 is connected with the sensor assembly 7 by optical fiber.
Alternatively, the data computation module 8 includes being based on electroluminescent electric charge behavior real-time monitored assessment system.
Alternatively, the extension of disc insulator module 6 to be measured is provided with flange-interface 11, the flange-interface 11 and institute
The outside of positive pressure tank module 4 is stated to connect.
Alternatively, the disc insulator module 6 to be measured includes the miniatures of 500kV GIS disc insulators.
The application specific implementation process：, it is necessary to be completed using sensor assembly 7 during progress surface electric field intensity measurement.Measurement
Before, sensor assembly 7 is installed in the test cavity body of positive pressure tank module 4, is fixed on by support close to benzvalene form to be measured
Diverse location at insulation submodule 6 surface, the optical signal of sensor assembly 7 are propagated by optical fiber, and optical fiber passes through positive pressure tank
During the side wall of module 4, sealed by poured with epoxy resin.Sensor assembly 7 measures the surface of disc insulator module 6 to be measured
The photoelectric integration electric-field of Transient Electric Field.Sensor assembly 7 by the data transfer measured to data computation module 8 to data at
Reason, the data after processing are shown by display module 9.
Intend positive and negative two surfaces being carried out under VFTO effects for disc insulator 3 to be measured the measurement of electric field, Mei Gebiao
Choose three points in face：Insulator and the intersection upper surface of flange-interface 11, insulator and central conductor interface upper surface, and
Insulator middle part upper surface；It is respectively level to measure direction of an electric field, it is vertical and with plane direction at 45 °.
During measurement surface field strength, for each measurement position, apply 10 opposed polarity VFTO pulses, and per minor tick
For 30s, it is used as oscillograph trigger signal by gathering VFTO synchronizing signals to be acquired.Complete single direction electric field measurement
Afterwards, positive pressure tank module 4 is opened, rotation sensor module 7 to other angles, can so be acted on completing other directions VFTO
The measurement of lower electric field.Finally, the conclusion (of pressure testing) such as the wave character with reference to VFTO overall process waveforms, breakdown number, completes difference and changes
Property after disc insulator module 6 to be measured diverse location different directions under VFTO effects electric field measurement, it is final to propose based on exhausted
Edge material modification controlled charge regulates and controls and the VFTO edge flashing models of electric Field Optimization.
The application insulate by the way that disc insulator module to be measured is arranged in high-field electrode module, while in benzvalene form to be measured
Some sensor assemblies are set on submodule so that whole device can combine the wave character of VFTO overall process waveforms, breakdown
The conclusion (of pressure testing)s such as number, complete different modified disc insulator miniatures diverse location different directions under VFTO effects
Electric field measurement, the final VFTO edge flashing models for proposing to be modified controlled charge regulation and control and electric Field Optimization based on isolator material；
Measurement interference is small, and error is small, and precision is high.
Described above is only the embodiment of the utility model embodiment, make skilled artisans appreciate that or
Realize the utility model.A variety of modifications to these embodiments will be apparent to one skilled in the art, this
General Principle defined in text can be in the case where not departing from spirit or scope of the present utility model, in other embodiments
Realize.Therefore, the utility model is not intended to be limited to the embodiments shown herein, and be to fit to it is disclosed herein
Principle and the consistent most wide scope of features of novelty.
It should be appreciated that the content that the application is not limited to be described above and is shown in the drawings, and can
To carry out various modifications and changes without departing from the scope.Scope of the present application is only limited by appended claim.
Claims (8)
1. a kind of 500kV GIS disc insulators VFTO experimental rigs, it is characterised in that including electric field measurement unit (1), data
Processing unit (2) and supply unit (3)；
The electric field measurement unit (1) includes positive pressure tank module (4), and high-tension electricity is provided with the positive pressure tank module (4)
Pole module (5), disc insulator module (6) to be measured, the disc insulator to be measured are provided with the high-field electrode module (5)
Some sensor assemblies (7) are provided with module (6)；
The data processing unit (2) includes data computation module (8), the data computation module (8) and display module (9) phase
Connection, the data computation module (8) are connected with the sensor assembly (7)；
The supply unit (3) includes high-voltage power module (10), the high-voltage power module (10) and the high-field electrode mould
Block (5) is connected.
2. device as claimed in claim 1, it is characterised in that the high-field electrode module (5) is in list structure, the high pressure
Electrode module (5) is horizontally placed in the positive pressure tank module (4), high-field electrode module (5) left end by wire with
The high-voltage power module (10) is connected.
3. device as claimed in claim 1, it is characterised in that the disc insulator module (6) to be measured is arranged at the height
Press on electrode module (5) outer surface, the disc insulator module (6) to be measured is arranged among the high-field electrode module (5)
Position；Disc insulator module (6) horizontal cross-section to be measured is V-shaped.
4. device as claimed in claim 1, it is characterised in that the sensor assembly (7) includes exhausted along the benzvalene form to be measured
The sensor of the linear array distribution of edge submodule (6) diameter axis, the sensor assembly (7) are insulated with the benzvalene form to be measured
Submodule (6) center is the center of circle in the array distribution that changes the outfit.
5. device as claimed in claim 1, it is characterised in that the data computation module (8) and the sensor assembly (7)
It is connected by optical fiber.
6. device as claimed in claim 1, it is characterised in that the data computation module (8) is included based on electroluminescent
Electric charge behavior real-time monitored assessment system.
7. such as device according to any one of claims 1 to 6, it is characterised in that the disc insulator module (6) to be measured is outside
Extended to be equipped with flange-interface (11), the flange-interface (11) on the outside of the positive pressure tank module (4) with connecting.
8. device as claimed in claim 7, it is characterised in that the disc insulator module (6) to be measured includes 500kV GIS
The miniatures of disc insulator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721119351.XU CN207096344U (en) | 2017-09-01 | 2017-09-01 | A kind of 500kV GIS disc insulators VFTO experimental rigs |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721119351.XU CN207096344U (en) | 2017-09-01 | 2017-09-01 | A kind of 500kV GIS disc insulators VFTO experimental rigs |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356823A (en) * | 2017-09-01 | 2017-11-17 | 云南电网有限责任公司电力科学研究院 | A kind of 500kV GIS disc insulators VFTO experimental rigs |
| CN108983057A (en) * | 2018-08-27 | 2018-12-11 | 云南电网有限责任公司电力科学研究院 | VFTO and external insulation retardation coefficient experimental rig and method under atmospheric over-voltage |
| CN109100620A (en) * | 2018-06-08 | 2018-12-28 | 中国电力科学研究院有限公司 | A kind of verify inhibits conducting wire to the system and method for GIS substation VFTO inhibitory effect |
| CN114089050A (en) * | 2021-11-15 | 2022-02-25 | 清华大学 | Online measurement method and device for surface charge distortion electric field of GIS insulator |
-
2017
- 2017-09-01 CN CN201721119351.XU patent/CN207096344U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356823A (en) * | 2017-09-01 | 2017-11-17 | 云南电网有限责任公司电力科学研究院 | A kind of 500kV GIS disc insulators VFTO experimental rigs |
| CN109100620A (en) * | 2018-06-08 | 2018-12-28 | 中国电力科学研究院有限公司 | A kind of verify inhibits conducting wire to the system and method for GIS substation VFTO inhibitory effect |
| CN109100620B (en) * | 2018-06-08 | 2022-04-22 | 中国电力科学研究院有限公司 | System and method for verifying suppression effect of suppression guide wire on VFTO of GIS transformer substation |
| CN108983057A (en) * | 2018-08-27 | 2018-12-11 | 云南电网有限责任公司电力科学研究院 | VFTO and external insulation retardation coefficient experimental rig and method under atmospheric over-voltage |
| CN108983057B (en) * | 2018-08-27 | 2020-09-04 | 云南电网有限责任公司电力科学研究院 | External insulation delay coefficient test device and method under VFTO and atmospheric overvoltage |
| CN114089050A (en) * | 2021-11-15 | 2022-02-25 | 清华大学 | Online measurement method and device for surface charge distortion electric field of GIS insulator |
| CN114089050B (en) * | 2021-11-15 | 2022-09-09 | 清华大学 | Online measurement method and device for surface charge distortion electric field of GIS insulator |
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