CN108802588A - Built-in GIS partial-discharge ultrahigh-frequencies and light pulse combined detection system and method - Google Patents
Built-in GIS partial-discharge ultrahigh-frequencies and light pulse combined detection system and method Download PDFInfo
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- CN108802588A CN108802588A CN201811003865.8A CN201811003865A CN108802588A CN 108802588 A CN108802588 A CN 108802588A CN 201811003865 A CN201811003865 A CN 201811003865A CN 108802588 A CN108802588 A CN 108802588A
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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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- 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
- G01R31/1218—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 using optical methods; using charged particle, e.g. electron, beams or X-rays
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- Testing Relating To Insulation (AREA)
Abstract
The present invention relates to a kind of built-in GIS partial-discharge ultrahigh-frequencies and light pulse combined detection system and method, the system includes monitored target GIS, superfrequency and light pulse integrated transducer, single mode optical fiber, coaxial cable, filtering and amplifier installation, opto-electronic conversion and amplifier installation, double channel data acquisition and storage device, control and display device, and printing equipment, the superfrequency and light pulse integrated transducer carries out built-in mounting arrangements on monitored target GIS shells, the filtering and amplifier installation, opto-electronic conversion and amplifier installation are connect with double channel data acquisition and storage device respectively, the double channel data acquisition and storage device, control and display device, printing equipment is sequentially connected.Compared with prior art, the present invention has many advantages, such as simple, practical, reduction electromagnetism and external visible light interference problem.
Description
Technical field
The present invention relates to GIS partial discharge detection fields, more particularly, to a kind of built-in GIS partial-discharge ultrahigh-frequencies
With light pulse combined detection system and method.
Background technology
The measurement of shelf depreciation is using various phenomenons caused by shelf depreciation as foundation, by the object that can state the phenomenon
Reason amount characterizes the state of shelf depreciation.The process of shelf depreciation other than the loss along with the transfer of charge and electric energy,
It also will produce electromagnetic radiation, ultrasonic wave, shine, generate heat and occur new product etc..Therefore, office corresponding with these phenomenons
The detection method of portion's electric discharge can be divided into electrical measurements and non-electrometric method two major classes.Non- electrometric method includes mainly that ultrasonic wave is examined
Survey method, flash spotting, Infrared Detection Method, chemical measure etc..The advantages of these methods, is resisted dry not by electrical interference in measuring
It is strong to disturb ability.
Flash spotting is to be used as beasurement base by detecting the light radiation that shelf depreciation generates.Pass through partial discharge light pulse itself
Or after opto-electronic conversion, shelf depreciation spectrum analysis, partial discharge light pulse detection (single and sequence), partial discharge location, electricity can be carried out
The various researchs of the edge agine mechaism and partial discharge propagation properties etc. of drawing last breath, to be goed deep into local Electrical Discharge Machine with different angle
The understanding of reason.GIS built-in ultrahigh frequencies partial discharge monitoring has great advantage in sensitivity, anti-interference etc. tool, but only deposits
The criterion of single mass signal source often makes testing staff or operations staff to whether there is shelf depreciation there are larger doubt,
It dare not draw hasty conclusions.If shelf depreciation optical sensor is similarly designed to it is built-in, will be big in closed GIS shells
It is big to reduce the signal interferences such as outsourcing visible light and identification problem.Currently, the method for superfrequency, light pulse signal Partial Discharge Detection
It has been widely used in on-line monitoring, live detection with technology, but has been two systems or two independent sensors, connection
Artificial intervention is needed to judge when closing low Use Limitation rate, signal analysis.
By retrieval, China Patent Publication No. is that CN206920549U discloses a kind of extra-high video sensor, including metal
Shielding case, substrate, antenna, coaxial feeder and signal output connector, the substrate is located at the bottom inside metallic shield, described
Antenna is located on substrate, and the signal output connector is located at the top of metallic shield, and the signal output connector passes through coaxial
Feeder line is connect with the antenna.The extra-high video sensor has the advantages that small, easy to install and use, strong antijamming capability,
Solves the deficiency that performance indicator of the existing technology is poor, sensitivity is low, using effect is good, simple for production, makes conducive to popularization
With.The extra-high video sensor for effectively obtain ultrahigh-frequency signal, exclude the interference signal, expand superfrequency method GIS part
It applies and is of great significance in discharge examination.But the sensor of the utility model can only detect shelf depreciation and generate electromagnetic wave letter
Number, signal source can not mutually be proved by being independently operated, with light pulse signal detection sensor.
Invention content
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of built-in GIS offices
Portion's electric discharge superfrequency and light pulse combined detection system and method.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of built-in GIS partial-discharge ultrahigh-frequencies and light pulse combined detection system, the system include monitored pair
As GIS, superfrequency and light pulse integrated transducer, single mode optical fiber, coaxial cable, filtering and amplifier installation, opto-electronic conversion
With amplifier installation, double channel data acquisition and storage device, control and display device and printing equipment, described is extra-high
Frequency and light pulse integrated transducer carry out built-in mounting arrangements on monitored target GIS shells, the filtering and put
Big device device, opto-electronic conversion and amplifier installation are connect with double channel data acquisition and storage device respectively, the binary channels
Data acquire and storage device, control and display device, printing equipment are sequentially connected；
The superfrequency connects filtering and amplifier installation, composition with light pulse integrated transducer by coaxial cable
Measure the superfrequency sensing detection circuit that shelf depreciation in monitored target GIS generates electromagnetic wave signal；
The superfrequency connects opto-electronic conversion and amplifier installation with light pulse integrated transducer by single mode optical fiber
Composition measures the light pulse sensing detection circuit that shelf depreciation in monitored target GIS generates light pulse signal；
After shelf depreciation electromagnetic wave and light pulse signal are changed into voltage analog signal, input double channel data acquisition and
Storage device is acquired, stores and transmits, and the control is with display device to GIS partial discharge superfrequency, light pulse
Signal is shown and is analyzed；The described printing equipment connection control with display device and to control with the data of display device into
Row printing achieves.
Preferably, the superfrequency and light pulse integrated transducer are to have while measuring superfrequency, light pulse letter
The integrated transducer of number shelf depreciation.
Preferably, the superfrequency and light pulse integrated transducer include epoxy disk, it is light pulse sensor, extra-high
Video sensor and metal tube, the light pulse sensor are set to epoxy disc surfaces, and the extra-high video sensor is set to ring
Oxygen disk inside center and it is parallel to disk plane, the light pulse sensor connects opto-electronic conversion by single mode optical fiber and puts
Big device device, the extra-high video sensor connect filtering and amplifier installation by coaxial cable, the single mode optical fiber and
One end of coaxial cable connecting integration sensor is packaged in metal tube, and one end of the metal tube is packaged in epoxy disk
It is interior.
Preferably, the extra-high video sensor is two-wire Archimedian planar spiral antenna, the both arms A Ji meter
Moral flat helical antenna is that the spiral of Archimedes of two reverse feedings is symmetrically placed, and the spiral of Archimedes is print
The metal spiral of brush technology manufacture, the width of the metal spiral are equal to the distance between two metal spirals.
Preferably, the light pulse sensor includes more fluorescence optical fibers, hookup, more internal single mode optical fibers and light
Guided wave coupler, the more fluorescence optical fibers are uniformly distributed in the surface of epoxy disk, and the more fluorescence optical fibers pass through
Hookup connects more internal single mode optical fibers, and described more internal single mode optical fibers connect 1 outside by optical guided wave coupler
Single mode optical fiber, this 1 external single mode optical fiber export light pulse signal to opto-electronic conversion and amplifier installation.
Preferably, the more fluorescence optical fibers are the surface that 8 fluorescence optical fibers and uniform parallel are distributed in epoxy disk,
The internal single mode optical fiber of described more is 8 single mode optical fibers, and the more fluorescence optical fibers and more internal single mode optical fibers are one by one
Corresponding, the optical guided wave coupler is 8 × 1 optical guided wave couplers, and 8 × 1 optical guided wave couplers are by 7 Y types 2 × 1
Optical waveguide coupler forms.
Preferably, the double channel data acquisition mode can be replaced multichannel collecting or or distributed capture mode.
Preferably, the display content of the control and display device includes：Single pulse waveform, peak value-time series
And PRPD spectrograms, the analysing content of the control and display device include：Signal trend analysis, pattern-recognition.
Preferably, the control to filtering and amplifier installation, opto-electronic conversion and is put with display device by data line
Big device device and double channel data acquisition and storage device carry out parameter setting.
A kind of method of built-in GIS partial-discharge ultrahigh-frequencies and light pulse combined detection system, includes the following steps：
Step 1, GIS partial discharge superfrequency, light pulse signal measurement module are packaged into integrated built-in formula sensor；
Step 2, integrated transducer is subjected to built-in mounting arrangements on GIS shells；
Step 3, GIS partial discharge ultrahigh-frequency signal is filtered and is amplified, light pulse signal carry out opto-electronic conversion with
Enhanced processing；
Step 4, GIS partial discharge superfrequency, light pulse signal are synchronized using double channel data acquisition device and is adopted
Collect, store and transmit；
Step 5, GIS partial discharge superfrequency, light pulse signal are shown and comparative analysis, print result.
Compared with prior art, the present invention has the following advantages：
1, the present invention provides a kind of joint inspections that can measure partial-discharge ultrahigh-frequency in GIS, light pulse signal simultaneously
Survey method.
2, the present invention provides a kind of GIS partial discharge detection superfrequency, light pulse integrated built-in formula sensors.
3, the present invention provides a kind of novel GIS partial discharge signal superfrequency, light pulse built in test mutually to help
Demonstrate,prove (sound-electric joint) analysis method.
Description of the drawings
Fig. 1 is the systematic square frame structural schematic diagram of the present invention.
Fig. 2 is the method work flow diagram of the present invention.
Fig. 3 is the structure sectional view of the integrated transducer of the present invention.
Fig. 4 is the structural schematic diagram of the extra-high video sensor of the integrated transducer of the present invention.
Fig. 5 is the structural schematic diagram of the light pulse sensor of the integrated transducer of the present invention.
Fig. 6 is 8 × 1 optical waveguide coupler structural schematic diagrams of the present invention.
Fig. 7 is the discharge pulse schematic diagram that the embodiment of the present invention obtains.
Wherein 1 is monitored target GIS, and 2 be superfrequency and light pulse integrated transducer, and 3 be single mode optical fiber, and 4 be same
Shaft cable, 5 be filtering and amplifier installation, and 6 be opto-electronic conversion and amplifier installation, and 7 fill for double channel data acquisition and storage
It sets, 8 be in order to control printing equipment with display device, 9, and 21 be epoxy disk, and 22 be light pulse sensor, and 23 sense for superfrequency
Device, 24 be metal tube, and 221 be more fluorescence optical fibers, and 222 be hookup, and 223 be more internal single mode optical fibers, and 224 be optical guided wave
Coupler.
Specific implementation mode
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is a part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work should all belong to the model that the present invention protects
It encloses.
As shown in Figure 1, a kind of built-in GIS partial-discharge ultrahigh-frequencies and light pulse combined detection system, the system packet
Include monitored target GIS1, superfrequency and light pulse integrated transducer 2, single mode optical fiber 3, coaxial cable 4, filtering and amplifier
Device 5, opto-electronic conversion and amplifier installation 6, double channel data acquisition and storage device 7, control and display device 8 and printing fill
Set 9.
The superfrequency and light pulse integrated transducer 2 is to have while measuring superfrequency, light pulse signal part
The integrated transducer of electric discharge, the superfrequency and light pulse integrated transducer 2 are enterprising in monitored target GIS1 shells
The built-in mounting arrangements of row；The superfrequency and light pulse integrated transducer 2 connects filtering and amplification by coaxial cable 4
The composition of device device 5 measures the superfrequency sensing detection circuit that shelf depreciation in monitored target GIS generates electromagnetic wave signal；It is described
Superfrequency and light pulse integrated transducer 2 pass through single mode optical fiber 3 connect opto-electronic conversion and amplifier installation 6 composition measure quilt
Shelf depreciation generates the light pulse sensing detection circuit of optical signal in monitoring object GIS；Shelf depreciation electromagnetic wave and light inside GIS
Pulse signal changes into that voltage analog signal inputs double channel data acquisition and storage device 7 is acquired, stores and transmits, institute
The control stated is with display device 8 by data line to filtering and amplifier installation 5, opto-electronic conversion and amplifier installation 6 and bilateral
Track data acquires and storage device 7 carries out parameter setting, the control and display device 8 to GIS partial discharge superfrequency,
Light pulse signal is shown and is analyzed；The connection control of printing equipment 9 is with display device 8 and to control and display device
8 data carry out printing archive.
As shown in figure 3, the superfrequency and light pulse integrated transducer 2 include epoxy disk 21, light pulse sensing
Device 22, extra-high video sensor 23 and metal tube 24, the light pulse sensor 22 are set to 21 surface of epoxy disk, the spy
High frequency sensors 23 are set to 21 inside center of epoxy disk and are parallel to disk plane, and the light pulse sensor 22 passes through list
Mode fiber 3 connects opto-electronic conversion and amplifier installation 6, the extra-high video sensor 23 by the connection of coaxial cable 4 filtering and
One end of amplifier installation 5,4 connecting integration sensor 2 of the single mode optical fiber 3 and coaxial cable is packaged in metal tube 24
Interior, one end of the metal tube 24 is packaged in epoxy disk 21.
As shown in figure 4, the extra-high video sensor 23 is two-wire Archimedian planar spiral antenna, described both arms Ah
Base Mead flat helical antenna is symmetrically placed, the described spiral of Archimedes of the spiral of Archimedes of two reverse feedings
For the metal spiral of printing technology manufacture, the width of the metal spiral is equal to the distance between two metal spirals.
As shown in figure 5, the light pulse sensor 22 includes more fluorescence optical fibers 221, hookup 222, more inside
Single mode optical fiber 223 and optical guided wave coupler 224, the more fluorescence optical fibers 221 are uniformly distributed in the surface of epoxy disk 21,
The more fluorescence optical fibers 221 connect more internal single mode optical fibers 223, described more internal single modes by hookup 222
Optical fiber 223 connects 1 single mode optical fiber 3 by optical guided wave coupler 224, and described 1 single mode optical fiber 3 exports light pulse signal
To opto-electronic conversion and amplifier installation 6.
The more fluorescence optical fibers 221 are the surface that 8 fluorescence optical fibers and uniform parallel are distributed in epoxy disk 21, institute
The more internal single mode optical fibers 223 stated are 8 single mode optical fibers, the more fluorescence optical fibers 221 and more internal single mode optical fibers
223 correspond, and the optical guided wave coupler 224 is 8 × 1 optical guided wave couplers, and 8 × 1 optical guided wave couplers are by 7
A 2 × 1 optical waveguide coupler of Y types composition.
The double channel data acquisition mode can be replaced multichannel collecting or or distributed capture mode.
The control and the display content of display device 8 include：Single pulse waveform, peak value-time series and
PRPD spectrograms, the control and the analysing content of display device 8 include：Signal trend analysis, pattern-recognition etc..
As shown in Fig. 2, a kind of method of built-in GIS partial-discharge ultrahigh-frequencies and light pulse joint-detection, including with
Lower step：
Step 1, GIS partial discharge superfrequency, light pulse signal measurement module are packaged into integrated built-in formula sensor；
Step 2, integrated transducer is subjected to built-in mounting arrangements on GIS shells；
Step 3, GIS partial discharge ultrahigh-frequency signal is filtered and is amplified, light pulse signal carry out opto-electronic conversion with
Enhanced processing；
Step 4, GIS partial discharge superfrequency, light pulse signal are synchronized using double channel data acquisition device and is adopted
Collect, store and transmit；
Step 5, GIS partial discharge superfrequency, light pulse signal are shown and comparative analysis, print result.
The operation principle of the detecting system of the present invention：Superfrequency and light pulse sensor are by epoxy packages at a disk knot
Structure, superfrequency sensor arrangement receive the electromagnetic wave signal that shelf depreciation generates inside GIS in disc centre；Light pulse senses
Device is arranged in disc surfaces, receives the light pulse signal that shelf depreciation generates inside GIS.
As shown in figure 4, the principle of wherein extra-high video sensor：GIS partial discharge ultrahigh-frequency signal sensor using
Two-wire Archimedian planar spiral antenna；The equation of Archimedes's snail line is
In formula：R be curve on any point to polar origin distance；For azimuth；For initial angle；r0For spiral shell
Distance of the spin line starting point to origin；A is constant, referred to as spiral growth rate.The helical antenna that the present invention uses is anti-by two
Archimedian screw to feed is symmetrically placed, obtains the symmetrical helical that two starting points are respectively A, B, as shown in Figure 4.With this
Two Archimedes spirals of sample are two-arm, are fed in two point symmetry of A, B, just constitute archimedean plannar spiral antenna.It adopts
This antenna is manufactured with printing technology, and the width of metal spiral is made to be equal to the distance between two helicals, to form self-compensation structure,
It is advantageously implemented wide-band impedance matching.
As shown in figure 5, the wherein principle of light pulse sensor：
GIS partial discharge light pulse detection uses 8 fluorescence in the distribution of integrated transducer disc surfaces uniform parallel
Optical fiber parallel connection is as optical detector.
Fluorescence optical fiber by numerical aperture due to not influenced, the whole section of optical signal that can receive shelf depreciation, therefore is pacified
It fills more convenient.After 8 single fluorescence optical fibers are connected by hookup with single mode optical fiber, by 8 × 1 optical guided wave couplers by 1 list
Mode fiber exports, and light pulse signal is exported to opto-electronic conversion and amplifier installation.8 × 1 couplers are as shown in fig. 6, by 7 Y
2 × 1 optical waveguide coupler of type forms.The present invention is coupled using more fluorescence optical fiber parallel connections for enhancing shelf depreciation inside GIS
Light pulse signal detectivity.
Wherein, the parameter of detection method is related to sensor, data acquisition etc. is such as given a definition respectively：
(1) two-wire Archimedian planar spiral antenna
Disc radius：15cm；
Input impedance：200Ω；
Effective bandwidth：300MHz~3000MHz.
(2) ultrahigh-frequency signal acquires
Detect frequency band：300MHz~3000MHz；
Sense channel：1CH；
Filtering bandwidth：500MHz~1500MHz；
Dynamic range：- 80~15dBm；
Sample rate：3GS/s；
(3) light pulse module
Spectrum frequency range：500-1000nm；
Sense channel：1CH；
Sensitivity：≤3dB；
Sample rate：3GS/s；
(4) it shows and analyzes
Display：Single pulse waveform, peak value-time series and PRPD spectrograms；
Analysis：Signal trend analysis, pattern-recognition etc..
A kind of shelf depreciation that built-in GIS partial-discharge ultrahigh-frequencies are obtained with light pulse associated detecting method and system
Superfrequency, the single waveform example of light pulse are as shown in Figure 7.
The present invention uses its size of the two-wire Archimedian planar spiral antenna of extra-high video sensor and classical insulation
It can change.
The present invention is arranged in parallel using light pulse sensor using 8 fluorescence optical fibers, can also other modes arrangement, radical
It can also change.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in various equivalent modifications or replace
It changes, these modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with right
It is required that protection domain subject to.
Claims (10)
1. a kind of built-in GIS partial-discharge ultrahigh-frequencies and light pulse combined detection system, which is characterized in that the system includes
Monitored target GIS, superfrequency and light pulse integrated transducer, single mode optical fiber, coaxial cable, filtering and amplifier installation,
Opto-electronic conversion and amplifier installation, double channel data acquisition and storage device, control and display device and printing equipment, institute
The superfrequency and light pulse integrated transducer stated carry out built-in mounting arrangements on monitored target GIS shells, described
Filtering and amplifier installation, opto-electronic conversion and amplifier installation are connect with double channel data acquisition and storage device respectively, described
Double channel data acquisition and storage device, control and display device, printing equipment be sequentially connected；
The superfrequency connects filtering and amplifier installation with light pulse integrated transducer by coaxial cable, and composition measures
Shelf depreciation generates the superfrequency sensing detection circuit of electromagnetic wave signal in monitored target GIS；
The superfrequency connects opto-electronic conversion by single mode optical fiber with light pulse integrated transducer and amplifier installation forms
Measure the light pulse sensing detection circuit that shelf depreciation in monitored target GIS generates light pulse signal；
After shelf depreciation electromagnetic wave and light pulse signal are changed into voltage analog signal, double channel data acquisition and storage are inputted
Device is acquired, stores and transmits, and the control is with display device to GIS partial discharge superfrequency, light pulse signal
It is shown and is analyzed；The printing equipment connection control is beaten with display device and to control and the data of display device
Print achieves.
2. system according to claim 1, which is characterized in that the superfrequency and light pulse integrated transducer is tool
The standby integrated transducer for measuring superfrequency, light pulse signal shelf depreciation simultaneously.
3. system according to claim 1 or 2, which is characterized in that the superfrequency and light pulse integrated transducer
Including epoxy disk, light pulse sensor, extra-high video sensor and metal tube, the light pulse sensor is set to epoxy disk
Surface, the extra-high video sensor are set to epoxy disk inside center and are parallel to disk plane, light pulse sensing
Device connects opto-electronic conversion and amplifier installation by single mode optical fiber, and the extra-high video sensor is connected by coaxial cable and filtered
And amplifier installation, one end of the single mode optical fiber and coaxial cable connecting integration sensor are packaged in metal tube, institute
The one end for the metal tube stated is packaged in epoxy disk.
4. system according to claim 3, which is characterized in that the extra-high video sensor is both arms Archimedes's plane
Helical antenna, the two-wire Archimedian planar spiral antenna are that the spiral of Archimedes of two reverse feedings is symmetrically put
It sets, the spiral of Archimedes is the metal spiral of printing technology manufacture, and the width of the metal spiral is equal to two
Distance between metal spiral.
5. system according to claim 3, which is characterized in that the light pulse sensor include more fluorescence optical fibers,
Hookup, more internal single mode optical fibers and optical guided wave coupler, the more fluorescence optical fibers are uniformly distributed in epoxy disk
Surface, the more fluorescence optical fibers connect more internal single mode optical fibers, described more internal single mode optical fibers by hookup
1 external single mode optical fiber is connected by optical guided wave coupler, light pulse signal is exported to photoelectricity and turned by this 1 external single mode optical fiber
It changes and amplifier installation.
6. system according to claim 5, which is characterized in that the more fluorescence optical fibers be 8 fluorescence optical fibers and
For even parallelly distribute in the surface of epoxy disk, described more internal single mode optical fibers are 8 single mode optical fibers, the more fluorescence
Optical fiber is corresponded with more internal single mode optical fibers, and the optical guided wave coupler is 8 × 1 optical guided wave couplers, described 8 ×
1 optical guided wave coupler is made of 72 × 1 optical waveguide couplers of Y types.
7. system according to claim 1, which is characterized in that the double channel data acquisition mode can be replaced mostly logical
Road acquires or or distributed capture mode.
8. system according to claim 1, which is characterized in that the display content of the control and display device includes：
The analysing content of single pulse waveform, peak value-time series and PRPD spectrograms, the control and display device includes：Letter
Number trend analysis, pattern-recognition.
9. system according to claim 1, which is characterized in that the control is with display device by data line to filtering
Parameter setting is carried out with amplifier installation, opto-electronic conversion and amplifier installation and double channel data acquisition and storage device.
10. a kind of using built-in GIS partial-discharge ultrahigh-frequencies described in claim 1 and light pulse combined detection system
Method, which is characterized in that include the following steps：
Step 1, GIS partial discharge superfrequency, light pulse signal measurement module are packaged into integrated built-in formula sensor；
Step 2, integrated transducer is subjected to built-in mounting arrangements on GIS shells；
Step 3, GIS partial discharge ultrahigh-frequency signal is filtered and is amplified, light pulse signal carries out opto-electronic conversion and amplification
Processing；
Step 4, acquisition synchronized to GIS partial discharge superfrequency, light pulse signal using double channel data acquisition device, deposited
Storage and transmission；
Step 5, GIS partial discharge superfrequency, light pulse signal are shown and comparative analysis, print result.
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| CN109541413A (en) * | 2018-12-20 | 2019-03-29 | 国网上海市电力公司 | GIS partial discharge superfrequency, ultrasonic wave, light pulse combined detection system and method |
| CN110514974A (en) * | 2019-10-14 | 2019-11-29 | 云南电网有限责任公司电力科学研究院 | A kind of shelf depreciation positioning system and method |
| CN110703050A (en) * | 2019-10-15 | 2020-01-17 | 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 | Method for accurately positioning fault point in GIL (gate in line) voltage withstand test |
| CN110703050B (en) * | 2019-10-15 | 2020-11-13 | 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 | Method for accurately positioning fault point in GIL (gate in line) voltage withstand test |
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