CN205193214U - Insulator ultraviolet impulse detection test device - Google Patents
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- CN205193214U CN205193214U CN201520896603.4U CN201520896603U CN205193214U CN 205193214 U CN205193214 U CN 205193214U CN 201520896603 U CN201520896603 U CN 201520896603U CN 205193214 U CN205193214 U CN 205193214U
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Abstract
The utility model discloses an insulator ultraviolet impulse detection test device, , which includes, the output of voltage regulator passes through isolation transformer and is connected with the input electricity of wave filter, the output of wave filter is connected with the input of transformer electricity, the output of transformer inserts artifical fog cabinet through protection resistance, the one end of protection resistance is connected with the output electricity of transformer, series capacitance divider between the other end and the ground of protection resistance, ultraviolet ray impulse detection appearance sets up the lateral wall opening part in artifical fog cabinet, an input of industrial computer is connected with the insulator electricity that sets up in artifical fog cabinet, series connection leakage current conversion resistance between circuit that industrial computer and insulator are connected and the ground, another input of industrial computer is connected with the output of ultraviolet ray impulse detection appearance electricity. Realize the advantage of high sensitivity's detection insulator.
Description
Technical field
The utility model relates to electric power monitoring field, particularly, relates to a kind of insulator ultraviolet pulse detection experiment device.
Background technology
Insulator is as one of huge, miscellaneous electrical equipment of consumption in electrical network, and the safe operation of quality to whole transmission system of its performance plays a part very crucial.Especially the insulator run out of doors, except should having the mechanical property of certain electrical insulation properties and some strength, also should possess the invasion and attack of tolerance physical environment and pollution etc. to ensure the conditional request of safe power supply.Because insulator should play insulating effect to electrical equipment or conductor, play fixing suspension effect again, its quality depends primarily on electrical insulation properties and mechanical property, because insulator long-time running is under the environment such as highfield, day with high temperature photograph, mechanical stress, humidity, dunghill, when its deterioration acquires a certain degree, its insulating property will reduce.Special on ultra-high-tension power transmission line, the deterioration of insulator directly threatens the safe operation of electric system.If insulator chain exists zero resistance insulator, be equivalent to have SI semi-insulation to be shorted, decrease the overall creepage distance of insulator chain accordingly, so just considerably increase the probability of flashover of this insulator string.Once generation flashover, the steel cap of zero resistance insulator often can burst or throw off, thus occurs that fall string and the wire of power circuit of insulator chain such as to land at the major accident; The external insulation ability of insulator can be made to decline after the pollution layer being deposited on electric transmission line isolator surface makes moist, often cause pollution flashover accident, have a strong impact on the reliability of electric power system.According to statistics, the insulation flashover accident caused due to filth at present, in the total accident of electric system, is only second to damage to crops caused by thunder and occupies second, but the loss caused by pollution flashover accident is 10 times of lightening hazard, nearly all there is large area pollution flashover in the whole nation six bulk power grid, causes huge economic loss.
Along with developing rapidly of national economy, power transmission mode, to more voltage levels, more remote future development, improves labour intensity and improves and detect work efficiency and will more be subject to people's attention.The insulator quantity that current 500kV circuit is often gone here and there is at least 25, and Great span strain insulator-string can have 30-34 sheet, and is two string, even four connection in series-parallel, and the insulator quantity on one-level shaft tower can reach hundreds of.China just transmits electricity in the extreme high voltage of the 1000kV electric pressure of development research at present, and the insulator quantity on one-level shaft tower will be more.Therefore, for ensureing the safe operation of insulator in electrical network, insulator on-line detection just seems particularly important and urgent.
The characteristic quantity that can be used for implementing insulator state detection mainly contains pulse current, insulator voltage, Electric Field Distribution, CHARGE DISTRIBUTION, sound and ultrasound wave, light (containing infrared ray, ultraviolet) etc., is wherein applied on ultraviolet imager at present based on ultraviolet detection.
Wherein, ultraviolet image method, when electric discharge occurs insulator surface, according to the difference of electric field intensity (or High Pressure Difference), can produce corona, flashover or electric arc, wherein containing part ultraviolet light.In recent years, abroad tend to by the direct facilities for observation discharge scenario of ultraviolet imager.Ultraviolet imager energy direct-detection goes out the discharge process before unit exception temperature rise, is the main method of discharge examination in the world, in the widespread use of the state such as the U.S., Russia.China Hong Kong also have accumulated a large amount of operating experiences that EUV discharge detects, since 2002, domestic several metropolitan power high voltage testing laboratory also starts the application test carrying out day blind type ultraviolet imager, obtain Preliminary Results, a kind of ultraviolet imager that current Israel produces avoids the ultraviolet spectrogram in sunlight, thus can use by day.Its pick-up lens has the functions such as auto-focusing, and utilizes visible ray and the dual imaging of ultraviolet light simultaneously, is convenient to very much take pictures at ground registration insulator.
Ultraviolet imager energy direct-detection goes out the discharge process before unit exception temperature rise, it is the main method of discharge examination in the world, ultraviolet imager is compared with other detection meanss, have and observe the advantages such as directly perceived, observed range is far away, but this is also a kind of manual detection means, especially to the unconspicuous early prediction of electric discharge, need to rely on the micro-judgment detecting workman.And, because ultraviolet imager is expensive, be difficult to, for building on-line detecting system, cannot accomplish that all fronts of power circuit ruuning situation are detected automatically.
Utility model content
The purpose of this utility model is, for the problems referred to above, proposes a kind of insulator ultraviolet pulse detection experiment device, to realize the advantage of highly sensitive detection insulator.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of insulator ultraviolet pulse detection experiment device, comprises pressure regulator, isolating transformer, wave filter, transformer, protective resistance, capacitive divider, artificial fog chamber, ultraviolet light pulse detector, leakage current transfer resistance and industrial computer,
The output terminal of described pressure regulator is electrically connected with the input end of wave filter by isolating transformer, the output terminal of described wave filter is electrically connected with the input end of transformer, the output terminal of described transformer is linked into artificial fog chamber by protective resistance, one end of described protective resistance is electrically connected with the output terminal of transformer, series capacitance voltage divider between the other end of described protective resistance and ground, described ultraviolet light pulse detector is arranged on the sidewall opening place of artificial fog chamber, an input end of described industrial computer is electrically connected with the insulator being arranged on artificial fog chamber, the circuit that described industrial computer is connected with insulator and leakage current transfer resistance of connecting between ground, another input end of described industrial computer is electrically connected with the output terminal of ultraviolet light pulse detector.
Further, described ultraviolet light pulse detector, comprises breakdown location device, light-power conversion circuit, high pressure and driving power circuit, I/U change-over circuit, filtering apparatus, pulse signal amplification circuit and data acquisition circuit;
Described filtering apparatus is arranged on the front end of breakdown location device, the output terminal of described breakdown location device is electrically connected with the input end of light-power conversion circuit, the output terminal of described high pressure and driving power circuit is electrically connected with the input end of light-power conversion circuit, the output terminal of described light-power conversion circuit is electrically connected with the input end of I/U change-over circuit, the described output terminal of I/U change-over circuit is electrically connected with the input end of pulse signal amplification circuit, and the output terminal of described pulse signal amplification circuit is electrically connected with the input end of data acquisition circuit;
Ultraviolet light after filtration electro-optical device is discharged after locating device detects, light-power conversion circuit converts the ultraviolet signal that breakdown location device detects to current pulse signal, and this current pulse signal transfers to data acquisition circuit successively after I/U change-over circuit and pulse signal amplification circuit.
Further, described filtering apparatus is optical interference filter.
Further, described breakdown location device, comprise location cylinder, photomultiplier and CCD camera, described location cylinder is arranged on the front end of photomultiplier, and described CCD camera is arranged on the below of photomultiplier.
Further, also comprise red laser transmitter, described red laser transmitter is arranged on below CCD camera, and the light that red laser transmitter is launched is parallel with location cylinder.
Further, described high pressure and driving power circuit, comprise C9619 high-voltage power supply, electric capacity C1, electric capacity C2 and electric capacity C3, described electric capacity C1 and electric capacity C2 is in parallel, and the parallel circuit that electric capacity C1 and electric capacity C2 forms is connected in parallel on the input end of C9619 high-voltage power supply, described electric capacity C3 is connected in parallel on the output terminal of C9619 high-voltage power supply.
Further, the capacitance of described electric capacity C1 is 0.1 μ F, and the capacitance of described electric capacity C2 is 220 μ F, and the capacitance of described electric capacity C3 is 0.022 μ F.
The technical solution of the utility model has following beneficial effect:
The utility model, by building different experiment conditions, detecting the discharge scenario of contaminated insulator under different situation, thus reaching the object of highly sensitive detection insulator.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the insulator ultraviolet pulse detection experiment device described in the utility model embodiment;
Fig. 2 is the theory diagram of the insulator ultraviolet pulse detection system described in the utility model embodiment;
Fig. 3 is the high-voltage power circuit connection layout described in the utility model embodiment;
Fig. 4 is the electronic circuitry of the low ripple noise high-voltage output circuit described in the utility model embodiment;
Fig. 5 is the theory diagram of the breakdown location device described in the utility model embodiment;
Fig. 6 is the electronic circuitry of the pulse signal amplification circuit described in the utility model embodiment.
By reference to the accompanying drawings, in the utility model embodiment, Reference numeral is as follows:
1-locates cylinder; 2-external optical signals.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the utility model, and be not used in restriction the utility model.
As shown in Figure 1; a kind of edge ultraviolet pulse detection experiment device; comprise pressure regulator T, isolating transformer G, wave filter L, transformer B, protective resistance R1, capacitive divider F, artificial fog chamber K, ultraviolet light pulse detector, leakage current transfer resistance Rm and industrial computer
The output terminal of pressure regulator is electrically connected with the input end of wave filter by isolating transformer, the output terminal of wave filter is electrically connected with the input end of transformer, the output terminal of transformer is linked into artificial fog chamber by protective resistance, one end of protective resistance is electrically connected with the output terminal of transformer, series capacitance voltage divider between the other end of protective resistance and ground, ultraviolet light pulse detector is arranged on the sidewall opening place of artificial fog chamber, an input end of industrial computer is electrically connected with the insulator being arranged on artificial fog chamber, the circuit that industrial computer is connected with insulator and leakage current transfer resistance of connecting between ground, another input end of described industrial computer is electrically connected with the output terminal of ultraviolet light pulse detector.
Artificial fog chamber installs and adds profit device, protective resistance R1 accesses place of artificial fog chamber and arranges sleeve pipe R.
And during experiment, test product insulator S is installed in artificial mist indoor set.
During experiment, detected the electric discharge of the test product insulator in artificial fog chamber by ultraviolet light pulse detector, and the discharge signal of detection is transferred to industrial computer analysis.
Pressure regulator model is: contact type voltage regulator TDJA-56,380V/0 ~ 420V; Isolating transformer model is: GGB-50/0.38/0.4; Wave filter model is: CLBQ-3-5/0.4; Transformer model is: YDJW-50/250 (220kV); The withstand voltage of R1 is 250kV, and resistance is 105k Ω; Rm is leakage current transfer resistance, has three gears: 10 Ω, 100 Ω and 1k Ω.
As shown in Figure 2, ultraviolet light pulse detector, comprises breakdown location device, light-power conversion circuit, high pressure and driving power circuit, I/U change-over circuit, filtering apparatus, pulse signal amplification circuit and data acquisition circuit;
Filtering apparatus is arranged on the front end of breakdown location device, the output terminal of breakdown location device is electrically connected with the input end of light-power conversion circuit, the output terminal of high pressure and driving power circuit is electrically connected with the input end of light-power conversion circuit, the output terminal of light-power conversion circuit is electrically connected with the input end of I/U change-over circuit, the output terminal of I/U change-over circuit is electrically connected with the input end of pulse signal amplification circuit, and the output terminal of pulse signal amplification circuit is electrically connected with the input end of data acquisition circuit;
Ultraviolet light after filtration electro-optical device is discharged after locating device detects, light-power conversion circuit converts the ultraviolet signal that breakdown location device detects to current pulse signal, and this current pulse signal transfers to data acquisition circuit successively after I/U change-over circuit and pulse signal amplification circuit.
Wherein, filtering apparatus is optical interference filter.
Breakdown location device, comprise location cylinder, photomultiplier and CCD camera, described location cylinder is arranged on the front end of photomultiplier, and described CCD camera is arranged on the below of photomultiplier.
Breakdown location device also comprises red laser transmitter, and red laser transmitter is arranged on below CCD camera, and the light that red laser transmitter is launched is parallel with location cylinder.
High pressure and driving power circuit, comprise C9619 high-voltage power supply, electric capacity C1, electric capacity C2 and electric capacity C3, described electric capacity C1 and electric capacity C2 is in parallel, and the parallel circuit that electric capacity C1 and electric capacity C2 forms is connected in parallel on the input end of C9619 high-voltage power supply, described electric capacity C3 is connected in parallel on the output terminal of C9619 high-voltage power supply.The capacitance of the capacitance of electric capacity C1 to be the capacitance of 0.1 μ F, electric capacity C2 be 220 μ F, electric capacity C3 is 0.022 μ F.
Light-power conversion circuit is the core of detection system, mainly adopts photomultiplier.
R2078 day blind type photomultiplier gain and impressed voltage there is close relationship, the size of impressed voltage not only determines the gain of photomultiplier, also determines the amplitude of the Distance geometry ultraviolet light pulse of detection.
High pressure and driving power circuit: photomultiplier needs the high pressure applying direct current on negative electrode, each dynode and anode, photocathode is electron emission under photon effect, these electronics are accelerated by external electric field (or magnetic field), focus on first time pole, these electronic energies impacting time pole make time pole discharge more electronics, and they are focused on second time pole again, like this, generally double through more than ten times, enlargement factor can reach 108 ~ 1010.Finally, the photocurrent be exaggerated is collected at the anode of noble potential.The small high-voltage power C9619 that native system adopts Japanese Bin Song company to produce provides accelerating field.
C9619 high-voltage power supply is characterized in integrated height, and volume is little, compact conformation, and input power accommodation is wide, and output voltage continuously adjustabe is portable, and driving power can adopt various ways etc., is generally used for miniature instrument.What C9619 exported is negative high voltage, C9619 maximum output voltage is-2000V, the technical program adopts the mode of potentiometer adjustment, at the potentiometer of High voltage output control end access 50K, output can be changed as shown in Figure 3 by the voltage-to-ground controlling pin 3, because output voltage is higher, there is the function limiting output voltage when overload or short circuit, when control voltage is more than 5.2V, module is automatically closed high voltage and is exported.
Photomultiplier is very high to the stability requirement of high-voltage suppling power, generally will reach 0.01% ~ 0.05%, and the stability of high-voltage power supply is usually than high about 10 times of the stability required by photomultiplier.C9619 output ripple noise is 0.003%, the driving power of the C9619 used due to system is 220V AC rectification is+12V, so driving power poor stability, fluctuate larger, in order to reduce high-voltage suppling power output ripple noise and stable output further, carried out further improvement to high-voltage power supply circuit, the low ripple noise high-voltage output circuit after its improvement as shown in Figure 4.
Input end adopts the connected mode of Capacitance parallel connection, to reduce the vibration that high and low frequency signal causes, electric capacity C3 is then as the energy-storage travelling wave tube of high power pulse, because when large fast pulse, directly electric charge is provided to have little time by power supply, capacitor deposit pulse electric charge must be added with, voltage stabilizing output voltage.
System power supply comprises two parts: high-pressure modular C9619 and pulse amplifying IN128 driving power, C9619 driving power input voltage is+12V, IN128 driving voltage is+12V and-12V, native system adopts the Switching Power Supply GZM-H40T5 ± 12R of general moral nova power technology company limited, it provides ± 12 voltages simultaneously, drives high-pressure modular and pulse amplifier IN128 simultaneously.
Therefore, high pressure and driving power circuit mainly comprise C9619 circuit and Switching Power Supply GZM-H40T5 ± 12R.
Filtering apparatus: ultraviolet wavelength coverage is 40nm ~ 400nm, the ultraviolet major part wavelength that high voltage electric equipment electric discharge produces is in the region of 280nm ~ 400nm, also fraction wavelength is had to be less than 280nm, also containing ultraviolet in sunshine, the ultraviolet being less than 300nm due to wavelength absorb by the ozone in air, so can by the ultraviolet only having 300nm ~ 400nm of propagation in atmosphere, and the ultravioplet photomultiplier R2078 detecting band that the technical program adopts is 160nm-320nm, there is the part more than 300nm, the interference of a part of ultraviolet light in daylight can be subject to, because the radiation intensity relative discharge radiant light of this part light in daylight is much larger, so day blind ultraviolet filter must be added in front end to remove the interference of this part UV radiation.So just avoid the complex background that the most powerful lamp-sun causes, ensure that the interference from daylight and other factors of the ultraviolet signal that receives when blind ultraviolet band detects insulator arc-over in day.
Based on the detection requirement of native system, native system have selected " sun is blind " optical filter of Shenyang Hui Bo company, it is a kind of wide-band interference optical filter, the percent transmittance T% led in scope at whole light is 10% ~ 20%, and centre wavelength is 252.8nm, is just in time positioned at day-old chick territory, half band-width 16.9nm, peak value projection ratio 28.4%, has good wavelength positioning precision, half-wave bandwidth accuracy, and form factor (squaring degree), peak transmission etc. all touch the mark.
Breakdown location device, as shown in Figure 5: be made up of two optical channels, a Red Beds In Small generating laser and CCD camera, three fixes position and optical axis is parallel to each other.The diameter cylinder type pipe slightly larger than photomultiplier diameter is installed in photomultiplier front end, when PMT(photomultiplier) just will be the strongest to the ultraviolet signal received during discharge position, depart from discharge position far away, then signal attenuation will be larger, therefore can determine the position of point of discharge according to the power of light pulse signal.The length increasing location cylinder can improve positioning precision, but the luminous flux that PMT receives will reduce, and systems axiol-ogy sensitivity declines.Visible Light CCD Camera in device is to high-tension apparatus imaging, the position that photomultiplier is aimed at can be indicated, the occasion of insufficient light at night, red laser transmitter can be utilized to carry out auxiliary positioning, the light signal that laser beam emitting device is launched is approximately straight line, can the position aimed at of judgment means according to the light spot position of laser.
I/U change-over circuit: photomultiplier output current signal, and the subsequent conditioning circuit be connected with it, generally designs based on voltage signal, and therefore, a conventional pull-up resistor completes the conversion of current-voltage.The technical program be photomultiplier transit tube anode be connected in series pull-up resistor between ground and realize.
Pulse signal amplification circuit: adopt instrumentation amplifier INA128, INA128 have employed the differential amplifier that three amplifiers are formed, and has carried out single-chip integration, because the circuit of inside and each resistance have all carried out accurate adjustment, has excellent amplification performance.When amplification 100 times, its common-mode rejection ratio Gao Keda 120dB, gain error is 0.05%, and bandwidth can reach 200kHz, and pulse signal amplification circuit connects as shown in Figure 6.
Data acquisition circuit adopts, the PCI9812 data collecting card of ADLINK company.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although be described in detail the utility model with reference to previous embodiment, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. an insulator ultraviolet pulse detection experiment device, is characterized in that, comprises pressure regulator, isolating transformer, wave filter, transformer, protective resistance, capacitive divider, artificial fog chamber, ultraviolet light pulse detector, leakage current transfer resistance and industrial computer,
The output terminal of described pressure regulator is electrically connected with the input end of wave filter by isolating transformer, the output terminal of described wave filter is electrically connected with the input end of transformer, the output terminal of described transformer is linked into artificial fog chamber by protective resistance, one end of described protective resistance is electrically connected with the output terminal of transformer, series capacitance voltage divider between the other end of described protective resistance and ground, described ultraviolet light pulse detector is arranged on the sidewall opening place of artificial fog chamber, an input end of described industrial computer is electrically connected with the insulator being arranged on artificial fog chamber, the circuit that described industrial computer is connected with insulator and leakage current transfer resistance of connecting between ground, another input end of described industrial computer is electrically connected with the output terminal of ultraviolet light pulse detector.
2. insulator ultraviolet pulse detection experiment device according to claim 1, it is characterized in that, described ultraviolet light pulse detector, comprises breakdown location device, light-power conversion circuit, high pressure and driving power circuit, I/U change-over circuit, filtering apparatus, pulse signal amplification circuit and data acquisition circuit;
Described filtering apparatus is arranged on the front end of breakdown location device, the output terminal of described breakdown location device is electrically connected with the input end of light-power conversion circuit, the output terminal of described high pressure and driving power circuit is electrically connected with the input end of light-power conversion circuit, the output terminal of described light-power conversion circuit is electrically connected with the input end of I/U change-over circuit, the described output terminal of I/U change-over circuit is electrically connected with the input end of pulse signal amplification circuit, and the output terminal of described pulse signal amplification circuit is electrically connected with the input end of data acquisition circuit;
Ultraviolet light after filtration electro-optical device is discharged after locating device detects, light-power conversion circuit converts the ultraviolet signal that breakdown location device detects to current pulse signal, and this current pulse signal transfers to data acquisition circuit successively after I/U change-over circuit and pulse signal amplification circuit.
3. insulator ultraviolet pulse detection experiment device according to claim 2, it is characterized in that, described filtering apparatus is optical interference filter.
4. insulator ultraviolet pulse detection experiment device according to claim 2, it is characterized in that, described breakdown location device, comprise location cylinder, photomultiplier and CCD camera, described location cylinder is arranged on the front end of photomultiplier, and described CCD camera is arranged on the below of photomultiplier.
5. insulator ultraviolet pulse detection experiment device according to claim 4, it is characterized in that, also comprise red laser transmitter, described red laser transmitter is arranged on below CCD camera, and the light that red laser transmitter is launched is parallel with location cylinder.
6. insulator ultraviolet pulse detection experiment device according to claim 2, it is characterized in that, described high pressure and driving power circuit, comprise C9619 high-voltage power supply, electric capacity C1, electric capacity C2 and electric capacity C3, described electric capacity C1 and electric capacity C2 is in parallel, and the parallel circuit that electric capacity C1 and electric capacity C2 forms is connected in parallel on the input end of C9619 high-voltage power supply, described electric capacity C3 is connected in parallel on the output terminal of C9619 high-voltage power supply.
7. insulator ultraviolet pulse detection experiment device according to claim 6, is characterized in that, it is characterized in that, the capacitance of described electric capacity C1 is 0.1 μ F, and the capacitance of described electric capacity C2 is 220 μ F, and the capacitance of described electric capacity C3 is 0.022 μ F.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226667A (en) * | 2016-08-31 | 2016-12-14 | 兴盛电器股份有限公司 | Laboratory table that high pressure is pressure |
| CN106291122A (en) * | 2016-08-04 | 2017-01-04 | 广东电网有限责任公司电力科学研究院 | The method of testing of a kind of oil immersed type condenser bushing watered and wetting defect and system |
| CN106990338A (en) * | 2017-05-27 | 2017-07-28 | 国网江苏省电力公司电力科学研究院 | A kind of insulator telemetry system based on UV pulse method |
| CN109143140A (en) * | 2018-07-23 | 2019-01-04 | 北方夜视技术股份有限公司 | Day, blind ultraviolet imager detected the caliberating device and scaling method of consistency |
| CN113466614A (en) * | 2021-06-17 | 2021-10-01 | 广西电网有限责任公司梧州供电局 | Method and device for calibrating insulator discharge position based on three-optical-path handheld ultraviolet instrument |
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2015
- 2015-11-11 CN CN201520896603.4U patent/CN205193214U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106291122A (en) * | 2016-08-04 | 2017-01-04 | 广东电网有限责任公司电力科学研究院 | The method of testing of a kind of oil immersed type condenser bushing watered and wetting defect and system |
| CN106291122B (en) * | 2016-08-04 | 2019-02-12 | 广东电网有限责任公司电力科学研究院 | A kind of test method and system of oil immersed type condenser bushing watered and wetting defect |
| CN106226667A (en) * | 2016-08-31 | 2016-12-14 | 兴盛电器股份有限公司 | Laboratory table that high pressure is pressure |
| CN106990338A (en) * | 2017-05-27 | 2017-07-28 | 国网江苏省电力公司电力科学研究院 | A kind of insulator telemetry system based on UV pulse method |
| CN109143140A (en) * | 2018-07-23 | 2019-01-04 | 北方夜视技术股份有限公司 | Day, blind ultraviolet imager detected the caliberating device and scaling method of consistency |
| CN113466614A (en) * | 2021-06-17 | 2021-10-01 | 广西电网有限责任公司梧州供电局 | Method and device for calibrating insulator discharge position based on three-optical-path handheld ultraviolet instrument |
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