CN207424121U - A kind of disc insulator model surface charge detecting device - Google Patents
A kind of disc insulator model surface charge detecting device Download PDFInfo
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- CN207424121U CN207424121U CN201721119432.XU CN201721119432U CN207424121U CN 207424121 U CN207424121 U CN 207424121U CN 201721119432 U CN201721119432 U CN 201721119432U CN 207424121 U CN207424121 U CN 207424121U
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Abstract
This application involves charge measurement technical fields, and in particular to a kind of disc insulator model surface charge detecting device.GIS disc insulators surface meeting accumulating surfaces charge in actual motion, the presence of surface charge will cause internal field to be distorted, and cause insulator edge flashing under VFTO；Surface Charge measurement is interfered so that measurement error becomes larger.The application provides a kind of disc insulator model surface charge detecting device, including charge measurement unit, data processing unit and supply unit；The charge measurement unit includes positive pressure tank module, high-field electrode module, the high-field electrode module, disc insulator module to be measured and capacitance probe module；The data processing unit includes electrometer module, oscilloscope module and display module；The electrometer module is connected with the capacitance probe module；The supply unit includes high-voltage power module.Measurement interference is small, and error is small, and precision is high.
Description
Technical field
This application involves charge measurement technical fields, and in particular to a kind of disc insulator model surface charge measurement dress
It puts.
Background technology
Disc insulator generally uses adhesive by insulating part (such as porcelain piece) and metal-ware (such as steel feet, chapeau de fer, flange)
Glued or machinery clamps.In terms of spatial electronic field measurement, the sensor for being applied to measuring high electric field at present mainly has M-Z
Interfere type and integrated common path interference type, based on the electric-field sensor of M-Z interference, half-wave field regime for 1500kV/m~
6000kV/m, can good response ms, μ s, ns magnitude waveform, meet requirement of the measuring high electric field to sensitivity and 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
Sub- mm grades of full dielectric cure sensor, to reduce the interference to former field.And the research of VFTO down space high-frequency electric field sensors is directed to,
Requirement to sensor is then harsher.Spherical electric-field sensor, bandwidth are 10Hz~25MHz, and maximum detection field strength is
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 variation of distance between sensor and shell, the variation of electric field magnitude
Scope is 5kV/m~60kV/m.Impulse electric field is popped one's head in, and bandwidth is 3.5Hz~1GHz, and maximum detection field strength is 10kV/cm, is passed through
The a diameter of 1cm of metal shell, length 6cm after improvement.ESD radiation fields have been carried out using the type sensor to test, and have 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
Width is 540Hz~40MHz, and maximum detection field strength is 40kV/m.Tsinghua University has studied streamer using M-Z interference electric-field sensors
Discharge electric field finds the electric-field jump phenomenon caused by streamer.By analyze above as it can be seen that at present, both at home and abroad to photoelectric integration electric-field
The research of sensor is still in infancy, and application is mainly used for measuring streamer different position electric field strength and overhead line
The electric field strength of surrounding.
GIS disc insulators surface meeting accumulating surfaces charge in actual motion, the presence of surface charge will be so that local
Electric field is distorted, and causes insulator edge flashing under VFTO；Surface Charge measurement is interfered so that measurement misses
Difference becomes larger.
Utility model content
The purpose of the application is to solve the meeting of the GIS disc insulators surface in actual motion accumulating surfaces charge, table
The presence of surface charge will cause internal field to be distorted, and cause insulator edge flashing under VFTO；To surface Charge
Measurement interferes so that the problem of measurement error becomes larger.
For this purpose, the utility model embodiment provides following technical solution：A kind of disc insulator model surface charge is surveyed
Device is measured, including charge measurement unit, data processing unit and supply unit；
The charge measurement unit includes positive pressure tank module, and high-field electrode mould is provided in the positive pressure tank module
Block is provided with disc insulator module to be measured in the high-field electrode module, is provided in the disc insulator module to be measured
Several capacitance probe modules；
The data processing unit includes electrometer module, and the electrometer module is connected with oscilloscope module, described
Oscilloscope module is connected with display module；The electrometer module is connected with the capacitance probe module；
The supply unit includes high-voltage power module, and the high-voltage power module is connected with the high-field electrode module
It connects.
Optionally, the high-field electrode module is in list structure, and the high-field electrode module level is arranged at the positive pressure
In container module, the high-field electrode module left end is connected by conducting wire with the high-voltage power module.
Optionally, 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 connected by inserts with the high-field electrode module, and the disc insulator module to be measured is arranged at described
High-field electrode module middle part；The disc insulator module level section to be measured is V-shaped.
Optionally, the high-voltage power module includes concave electrodes and convex surface electrode, the concave electrodes and the convex surface
Electrode one-pass molding is whole；The inserts is arranged between the concave electrodes and the convex surface electrode；The concave electrodes
It is connected with the convex surface electrode with stepper motor；Described convex surface electrode one end is provided with support rotation electrode, the support
Rotation electrode is arranged on the outside of the inserts, and the support rotation electrode is connected with the stepper motor.
Optionally, the concave electrodes can be rotated with the convex surface electrode along front and rear vertical direction.
Optionally, the capacitance probe module is arranged in the front and rear surfaces of the disc insulator module to be measured, described
Capacitance probe module is connected with the stepper motor.
Optionally, the electrometer module is connected with the capacitance probe module by optical fiber.
Optionally, the disc insulator module extension to be measured is provided with flange-interface, the flange-interface with it is described just
Connection on the outside of pressure vessel module.
Optionally, the disc insulator module to be measured includes the miniatures of 500kV GIS disc insulators.
The technical solution that the utility model embodiment provides includes following advantageous effect：The application passes through benzvalene form to be measured is exhausted
Edge submodule is arranged in high-field electrode module, while several capacitance probe modules are set in disc insulator module to be measured,
GIS disc insulator miniatures surface potential measuring tables are built, and passes through charge reversal algorithm and calculates to obtain surface charge distribution,
Measurement interference is small, and error is small, and precision is high.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be apparent that, for those of ordinary skills, in not making the creative labor property
On the premise of, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of disc insulator model surface charge detecting device structure diagram in the utility model embodiment；
Symbolic indication in Fig. 1 is：
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- capacitance probe modules, 8- electrometer modules, 9- oscilloscope modules, 10- display modules,
11- high-voltage power modules, 12- inserts, 13- stepper motors, 14- support rotation electrodes, 15- flange-interfaces.
Specific embodiment
Attached drawing herein is merged in specification and forms the part of this specification, shows and meets the utility model
Embodiment, and for explaining the principle of the utility model together with specification.
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, for ordinary skill people
For member, without having to pay creative labor, other attached drawings are can also be obtained according to these attached drawings.
Below with reference to the embodiments and with reference to the accompanying drawing the technical solution of the application is described in further detail.
Embodiment one
Referring to Fig. 1, for a kind of disc insulator model surface charge detecting device that the utility model embodiment provides, bag
Include charge measurement unit 1, data processing unit 2 and supply unit 3；
The charge measurement unit 1 includes positive pressure tank module 4, and high-field electrode is provided in 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 several capacitance probe modules 7；
The data processing unit 2 includes electrometer module 8, and the electrometer module 8 is connected with oscilloscope module 9,
The oscilloscope module 9 is connected with display module 10；The electrometer module 8 is connected with the capacitance probe module 7；
The supply unit 3 includes high-voltage power module 11, the high-voltage power module 11 and the high-field electrode module 5
It is connected.
The application specific implementation process：Capacitance probe module 7 measures the transient state on 6 surface of disc insulator module to be measured
The photoelectric integration electric-field of electric field.Capacitance probe module 7 is right by the data transmission measured to electrometer module 8 and oscilloscope module 9
Data are handled, and data that treated are shown by display module 10.
The high pressure that disc insulator module 6 to be measured is born is by introducing in 4 cavity of positive pressure tank module.Positive pressure tank mould
4 cavity of block can bear 0.4MPa gas pressures, can fill SF6 gases, inside is equipped with disc insulator module 6 to be measured and capacitance is visited
Head module 7.Ensure that capacitance probe module 7 can do linear reciprocation fortune along 6 surface level of disc insulator module to be measured during use
It is dynamic；Operation of capacitor probe module 7 can scan entire disc insulator model to be measured；After power-off, operation is so that basin to be measured
Formula insulation submodule 6 is rotated, and with reference to 7 linear drive apparatus of capacitance probe module, and then scans entire benzvalene form insulation to be measured
6 surface potential of submodule is distributed, and external oscilloscope module 9 will read electrometer module 8 and export analog signal in real time, and by potential
Value Data imports display module 10 and is shown.
Embodiment two
Referring to Fig. 1, for a kind of disc insulator model surface charge detecting device that the utility model embodiment provides, bag
Include charge measurement unit 1, data processing unit 2 and supply unit 3；
The charge measurement unit 1 includes positive pressure tank module 4, and high-field electrode is provided in 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 several capacitance probe modules 7；
The data processing unit 2 includes electrometer module 8, and the electrometer module 8 is connected with oscilloscope module 9,
The oscilloscope module 9 is connected with display module 10；The electrometer module 8 is connected with the capacitance probe module 7；
The supply unit 3 includes high-voltage power module 11, the high-voltage power module 11 and the high-field electrode module 5
It is connected.
Optionally, the high-field electrode module 5 be in list structure, the high-field electrode module 5 be horizontally placed on it is described just
In pressure vessel module 4,5 left end of high-field electrode module is connected by conducting wire with the high-voltage power module 11.
Optionally, the disc insulator module 6 to be measured is arranged on 5 outer surface of high-field electrode module, described to treat
It surveys disc insulator module 6 to be connected with the high-field electrode module 5 by inserts 12, the disc insulator module 6 to be measured is set
It is placed in 5 middle part of high-field electrode module；6 horizontal cross-section of disc insulator module to be measured is V-shaped.
Optionally, the high-voltage power module 11 include concave electrodes and convex surface electrode, the concave electrodes with it is described convex
Face electrode one-pass molding is whole；The inserts 12 is arranged between the concave electrodes and the convex surface electrode；The concave surface
Electrode is connected with the convex surface electrode with stepper motor 13；Described convex surface electrode one end is provided with support rotation electrode 14,
The support rotation electrode 14 is arranged at 12 outside of inserts, and the support rotation electrode 14 is connected with the stepper motor 13
It connects.
Optionally, the capacitance probe module 7 is arranged in the front and rear surfaces of the disc insulator module 6 to be measured, institute
Capacitance probe module 7 is stated with the stepper motor 13 to be connected.
Optionally, the electrometer module 8 is connected with the capacitance probe module 7 by optical fiber.
The application specific implementation process：, it is necessary to use capacitance probe when carrying out disc insulator surface charge measurement to be measured
Module 7 is completed.Before measurement, capacitance probe module 7 is installed in the test cavity body of positive pressure tank module 4, passes through stent quilt
It is fixed on close to different position at 6 surface of disc insulator module to be measured, 7 optical signal of capacitance probe module is passed by optical fiber
It broadcasts, when optical fiber passes through the side wall of positive pressure tank module 4, is sealed by poured with epoxy resin.Capacitance probe module 7 measures described to be measured
The photoelectric integration electric-field of the Transient Electric Field on 6 surface of disc insulator module.Capacitance probe module 7 is by the data transmission measured to quiet
Electricity meter module 8 and oscilloscope module 9 handle data, and data that treated are shown by display module 10.
The high pressure that disc insulator module 6 to be measured is born is by introducing in 4 cavity of positive pressure tank module.Positive pressure tank mould
4 cavity of block can bear 0.4MPa gas pressures, can fill SF6 gases, and inside is equipped with disc insulator module 6 to be measured, and capacitance is visited
Head module 7, convex surface electrode, concave electrodes and support rotation electrode 14.Wherein, 7 initial position of capacitance probe module is located at edge
Protection, controlled by stepper motor 13, it is ensured that capacitance probe module 7 can be done along 6 surface level of disc insulator module to be measured
Straight reciprocating motion；Convex surface electrode and concave electrodes are controlled by stepper motor 13, and when charged, the two is close to benzvalene form insulation to be measured
6 inserts 12 of submodule, after power-off, convex surface electrode and concave electrodes will be exhausted to separate benzvalene form to be measured in the case where stepper motor 13 drives
6 direction of edge submodule moves 15cm~20cm, to ensure that capacitance probe module 7 can scan entire disc insulator mould to be measured
Type；After power-off, support rotation electrode 14 will radially be rotated, so as to drive under the drive of stepper motor 13 with given pace
Disc insulator module 6 to be measured is rotated, and with reference to 7 linear drive apparatus of capacitance probe module, and then scans entire basin to be measured
Formula insulation submodule 6 surface potential distribution, external oscilloscope module 9 will read electrometer module 8 and export analog signal in real time, and
Potential Value Data importing display module 10 is shown.
Embodiment three
Referring to Fig. 1, for a kind of disc insulator model surface charge detecting device that the utility model embodiment provides, bag
Include charge measurement unit 1, data processing unit 2 and supply unit 3；
The charge measurement unit 1 includes positive pressure tank module 4, and high-field electrode is provided in 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 several capacitance probe modules 7；
The data processing unit 2 includes electrometer module 8, and the electrometer module 8 is connected with oscilloscope module 9,
The oscilloscope module 9 is connected with display module 10；The electrometer module 8 is connected with the capacitance probe module 7；
The supply unit 3 includes high-voltage power module 11, the high-voltage power module 11 and the high-field electrode module 5
It is connected.
Optionally, the high-field electrode module 5 be in list structure, the high-field electrode module 5 be horizontally placed on it is described just
In pressure vessel module 4,5 left end of high-field electrode module is connected by conducting wire with the high-voltage power module 11.
Optionally, the disc insulator module 6 to be measured is arranged on 5 outer surface of high-field electrode module, described to treat
It surveys disc insulator module 6 to be connected with the high-field electrode module 5 by inserts 12, the disc insulator module 6 to be measured is set
It is placed in 5 middle part of high-field electrode module；6 horizontal cross-section of disc insulator module to be measured is V-shaped.
Optionally, the high-voltage power module 11 include concave electrodes and convex surface electrode, the concave electrodes with it is described convex
Face electrode one-pass molding is whole；The inserts 12 is arranged between the concave electrodes and the convex surface electrode；The concave surface
Electrode is connected with the convex surface electrode with stepper motor 13；Described convex surface electrode one end is provided with support rotation electrode 14,
The support rotation electrode 14 is arranged at 12 outside of inserts, and the support rotation electrode 14 is connected with the stepper motor 13
It connects.
Optionally, the capacitance probe module 7 is arranged in the front and rear surfaces of the disc insulator module 6 to be measured, institute
Capacitance probe module 7 is stated with the stepper motor 13 to be connected.
Optionally, the electrometer module 8 is connected with the capacitance probe module 7 by optical fiber.
Optionally, 6 extension of disc insulator module to be measured is provided with flange-interface 15, the flange-interface 15 and institute
State the 4 outside connection of positive pressure tank module.
Optionally, the disc insulator module (6) to be measured includes the miniatures of 500kV GIS disc insulators.
The application specific implementation process：When carrying out the miniatures surface charge measurement of 500kV GIS disc insulators, need
It to be completed using capacitance probe module 7.Before measurement, capacitance probe module 7 is installed in the experiment cavity of positive pressure tank module 4
It is interior, it is fixed on by stent close to different position at 6 surface of disc insulator module to be measured, 7 optical signal of capacitance probe module
It is propagated by optical fiber, when optical fiber passes through the side wall of positive pressure tank module 4, is sealed by poured with epoxy resin.Capacitance probe mould
Block 7 measures the photoelectric integration electric-field of the Transient Electric Field on 6 surface of disc insulator module to be measured.Capacitance probe module 7 will be surveyed
Data transmission to the electrometer module 8 and oscilloscope module 9 obtained handles data, and treated, and data pass through display module
10 are shown.
The high pressure that the miniatures of 500kV GIS disc insulators is born is by introducing in 4 cavity of positive pressure tank module.
4 cavity of positive pressure tank module can bear 0.4MPa gas pressures, can fill SF6 gases, and inside is equipped with disc insulator mould to be measured
Block 6, capacitance probe module 7, convex surface electrode, concave electrodes and support rotation electrode 14.Wherein, 7 initial bit of capacitance probe module
It setting in the protection at 15 edge of flange-interface, is controlled by stepper motor 13, it is ensured that capacitance probe module 7 can be along 500kV to be measured
The miniatures surface level of GIS disc insulators does straight reciprocating motion；Convex surface electrode and concave electrodes are by stepper motor
13 controls, when charged, the two is close to 6 inserts 12 of disc insulator module to be measured, and after power-off, convex surface electrode and concave electrodes will be
Under stepper motor 13 drives, 15cm~20cm is moved to away from 6 direction of disc insulator module to be measured, to ensure capacitance probe mould
Block 7 can scan entire disc insulator model to be measured；After power-off, rotation electrode 14 is supported under the drive of stepper motor 13,
It will radially be rotated with given pace, so as to which disc insulator module 6 to be measured be driven to be rotated, with reference to capacitance probe module 7
Linear drive apparatus, and then entire 6 surface potential of disc insulator module distribution to be measured is scanned, external oscilloscope module 9 will be real
When read electrometer module 8 and export analog signal, and potential Value Data importing display module 10 is shown.
The above is only the specific embodiment of the utility model embodiment, make skilled artisans appreciate that or
Realize the utility model.A variety of modifications of these embodiments will be apparent to one skilled in the art, this
General Principle defined in text can without departing from the spirit or scope of the present utility model, in other embodiments
It realizes.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 be shown in the drawings, and can
To carry out various modifications and change without departing from the scope.Scope of the present application is only limited by appended claim.
Claims (9)
1. a kind of disc insulator model surface charge detecting device, which is characterized in that including charge measurement unit (1), data
Processing unit (2) and supply unit (3)；
The charge measurement unit (1) includes positive pressure tank module (4), and high-voltage electricity is provided in the positive pressure tank module (4)
Pole module (5) is provided with disc insulator module (6) to be measured, the disc insulator to be measured on the high-field electrode module (5)
Several capacitance probe modules (7) are provided in module (6)；
The data processing unit (2) includes electrometer module (8), and the electrometer module (8) is connected with oscilloscope module (9)
It connects, the oscilloscope module (9) is connected with display module (10)；The electrometer module (8) and the capacitance probe module
(7) it is connected；
The supply unit (3) includes high-voltage power module (11), the high-voltage power module (11) and the high-field electrode mould
Block (5) is connected.
2. device as described in claim 1, which is characterized 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 conducting wire with
The high-voltage power module (11) is connected.
3. device as described in claim 1, which is characterized in that the disc insulator module (6) to be measured is arranged at the height
It presses on electrode module (5) outer surface, the disc insulator module (6) to be measured passes through inserts (12) and the high-field electrode module
(5) connect, the disc insulator module (6) to be measured is arranged at high-field electrode module (5) middle part；The basin to be measured
Formula insulation submodule (6) horizontal cross-section is V-shaped.
4. device as claimed in claim 3, which is characterized in that the high-voltage power module (11) includes concave electrodes and convex surface
Electrode, the concave electrodes are whole with the convex surface electrode one-pass molding；The inserts (12) is arranged at the concave electrodes
Between the convex surface electrode；The concave electrodes are connected with the convex surface electrode with stepper motor (13)；The convex surface
Electrode one end is provided with support rotation electrode (14), and the support rotation electrode (14) is arranged on the outside of the inserts (12), institute
Support rotation electrode (14) is stated with the stepper motor (13) to be connected.
5. device as claimed in claim 4, which is characterized in that the concave electrodes can be hung down with the convex surface electrode along front and rear
Nogata is to being rotated.
6. device as claimed in claim 4, which is characterized in that the capacitance probe module (7) is arranged at the benzvalene form to be measured
It insulate in the front and rear surfaces of submodule (6), the capacitance probe module (7) is connected with the stepper motor (13).
7. device as described in claim 1, which is characterized in that the electrometer module (8) and the capacitance probe module (7)
It is connected by optical fiber.
8. such as device according to any one of claims 1 to 7, which is characterized in that the disc insulator module (6) to be measured is outside
Extended to be equipped with flange-interface (15), the flange-interface (15) on the outside of the positive pressure tank module (4) with connecting.
9. device as claimed in claim 8, which is characterized in that the disc insulator module (6) to be measured includes 500kV GIS
The miniatures of disc insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721119432.XU CN207424121U (en) | 2017-09-01 | 2017-09-01 | A kind of disc insulator model surface charge detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721119432.XU CN207424121U (en) | 2017-09-01 | 2017-09-01 | A kind of disc insulator model surface charge detecting device |
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| CN207424121U true CN207424121U (en) | 2018-05-29 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356825A (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 disc insulator model surface charge detecting device |
| CN108732473A (en) * | 2018-05-02 | 2018-11-02 | 沈阳工业大学 | A kind of miniaturization disc insulator surface charge distribution synchronous measuring apparatus and method |
| CN110554254A (en) * | 2019-09-23 | 2019-12-10 | 华北电力大学 | observing device for metal dust adsorption and accumulated charges of GIS or GIL equipment |
| CN111596184A (en) * | 2020-06-12 | 2020-08-28 | 云南电网有限责任公司电力科学研究院 | Method and device for detecting insulating property of insulating medium based on electric charge quantity |
-
2017
- 2017-09-01 CN CN201721119432.XU patent/CN207424121U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356825A (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 disc insulator model surface charge detecting device |
| CN108732473A (en) * | 2018-05-02 | 2018-11-02 | 沈阳工业大学 | A kind of miniaturization disc insulator surface charge distribution synchronous measuring apparatus and method |
| CN108732473B (en) * | 2018-05-02 | 2023-10-27 | 沈阳工业大学 | Miniaturized basin-type insulator surface charge distribution synchronous measurement device and method |
| CN110554254A (en) * | 2019-09-23 | 2019-12-10 | 华北电力大学 | observing device for metal dust adsorption and accumulated charges of GIS or GIL equipment |
| CN111596184A (en) * | 2020-06-12 | 2020-08-28 | 云南电网有限责任公司电力科学研究院 | Method and device for detecting insulating property of insulating medium based on electric charge quantity |
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