CN203133263U - Detection and verification device of transformer partial discharge and positioning monitoring assembly - Google Patents
Detection and verification device of transformer partial discharge and positioning monitoring assembly Download PDFInfo
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- CN203133263U CN203133263U CN 201220471261 CN201220471261U CN203133263U CN 203133263 U CN203133263 U CN 203133263U CN 201220471261 CN201220471261 CN 201220471261 CN 201220471261 U CN201220471261 U CN 201220471261U CN 203133263 U CN203133263 U CN 203133263U
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Abstract
The utility model provides a detection and verification device of a transformer partial discharge and positioning monitoring assembly. The detection and verification device comprises a power supply, an isolation filtering transformer, a non-partial-discharge boosting transformer, a voltage divider, a sample Cx, a digital partial discharge instrument, a UHF sensor and a computer. By adopting the detection and verification system, a transformer partial discharge UHF on-line monitoring assembly and a partial discharge ultrasonic positioning/UHF positioning on-line monitoring assembly can be detected and verified, and meanwhile, the sensitivity and the positioning error of the on-line monitoring assemblies can be detected and verified. A developed UHF sensor installation tool can realize the detection of various types of UHF sensors; and through a developed electrode model, a typical partial discharge fault of a transformer can be simulated, and the detection and verification of the on-line monitoring intelligent assemblies on the monitoring sensitivity of various typical types of faults are carried out.
Description
Technical field
The utility model belongs to the intelligent electric appliance field, is specifically related to the detection check device of a kind of transformer partial discharge and position monitor intelligent assembly.
Background technology
Along with the sharp increase of China's power consumption, the performance of electricity consumption imbalance problem is particularly outstanding, east and the coastal electricity consumption problem in short supply that faces, western big water power and the big coal electricity of Shan Gan Ningmengjin wing base, country is carrying out transferring electricity from the west to the east, and three magnificent electrical networks are interconnected, the strong intelligent grid of development extra-high voltage.Electrical network has become basis and the important component part of industrialization, informationized society development; Simultaneously, electrical network is also constantly receiving industrialization, information-based achievement, makes various advanced technologies obtain integrated application in the power transmission and transformation primary equipment, greatly promotes the intelligent degree of primary equipments such as transformer.
Transformer is as one of most important power equipment, and the stability of its safe operation is particularly important.The intelligent transformer assembly is applied to transformer equipment with informationization, robotization, interactive technology, can carry out on-line monitoring to the major parameter of transformer, can carry out state estimation and fault diagnosis to transformer by the data of on-line monitoring.Transformer insulated parameter is one of most important parameters of transformer safe operation, when there are some weakness in insulation, under certain applied voltage, can discharge, but not taking place immediately, whole insulation penetrability do not puncture, the discharge that these insulation local locations take place is shelf depreciation, and abbreviation office puts.Can in advance the state of insulation of transformer be examined and assess by office's size and occurrence positions high-volume; Therefore, the office high-volume drawn game put the location be one of most important parameter in the transformer insulated assessment.The discharge capacity that traditional pulse current method can well measuring transformer office be put, but need the power failure off-line to test detection, can not assess the state of insulation of transformer in real time.At present, the main mode that transformer online monitoring office puts is UHF(Ultra High Frequency, ultrahigh frequency) on-line monitoring and the ultrasonic high frequency CT on-line monitoring that adds, can assess transformer insulation state in real time.
The principle of transformer partial discharge UHF on-line monitoring: when transformer generation office puts, position radiated electromagnetic wave is towards periphery put in office, can detect electromagnetic wave by the UHF sensor, the office that in time catches transformer puts, and judges the running status of transformer by the development trend of office's value of putting.
The ultrasonic principle that adds high frequency CT on-line monitoring of partial discharge of transformer: when transformer generation office puts, the office put the position towards periphery radiative acoustic wave and, form the sounding array by ultrasound positioning system by the layout of sonac, mensuration is put the sound wave that a little sends to the relative time error the ground wave travel-time of each probe or each probe by office, these times or relative time error substitution are satisfied the equation solution that this sounding array geometry concerns, just obtain the position coordinates of discharge source, and shield ground wire by High Frequency Current Sensor from bushing and end simultaneously, the neutral ground line, coupled discharge signals such as iron core grounding line, whether detection office puts and takes place.
Current, also there are not comparatively system, comprehensive solution for transformer partial discharge and location on-line monitoring verification, China's utility model patent " be convenient to install and move partial discharge monitoring locating device " (application number: 200920104422.8, the applying date: 2009-08-31) proposed a kind of partial discharge monitoring locating device of installing and moving be convenient to, be used for solving the installation question of monitoring positioning device.Its technical scheme is: it is by sonac, the wide band current transformer, master control cabinet and the general supply that is installed on master control cabinet inside, PD meter, the telecommunication unit, the sonac power supply unit is formed, described sonac is fixed on the tank wall of monitored transformer, its signal output part connects PD meter, described wide band current transformer is installed on the power transformer iron core ground wire, its signal output part connects PD meter, described master control cabinet is by the stainless steel cabinet, stainless steel cabinet door and cabinet pin are formed, described cabinet pin by the J-shaped bolt be installed in ground iron double-edged fine-toothed comb and be connected.Yet this apparatus function is too single.
In view of this, the utility model provides the detection check device of a kind of transformer partial discharge and position monitor intelligent assembly, to address the above problem.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, the detection check device of a kind of transformer partial discharge and position monitor intelligent assembly is proposed, can realize to transformer partial discharge UHF on-line monitoring assembly that by the detection check device drawn game puts Chao Shengdingwei UHF and locate online monitoring assembly and detect and verification, simultaneously can to the sensitivity of on-line monitoring assembly and positioning error detects and verification.The transformer partial discharge UHF on-line monitoring of the on-the-spot operation of transformer station, its UHF sensor mounting means is multiple, by fuel outlet valve, hand hole, the on-the-spot UHF sensor of installing of transforming of manhole flange, also have the UHF sensor OEM that when transformer factory's assembling transformer, carries out at tank wall to install, need dissimilar frocks when the UHF sensor of different mounting meanss is carried out detection check.
The technical solution of the utility model is: the detection check device of a kind of transformer partial discharge and position monitor intelligent assembly, comprise that 220V AC power, isolation filter transformer, no office put step-up transformer, voltage divider, test product Cx, digital PD meter, UHF sensor and computer, it is characterized in that: described isolation filter transformer is realized the filtering to described 220V AC power harmonic wave, simultaneously the alternating current source is disturbed and isolate, avoid introducing the detection check loop; Described no office puts step-up transformer and realizes that low pressure to the conversion of high pressure, provides high pressure to described test product Cx, and test product Cx is partial discharge of transformer fault simulation device in this detection check device; Voltage divider is realized high-tension real-time measurement; Digital PD meter adopts pulse current method that test product Cx discharge capacity pC is detected, and discharges towards periphery by the UHF sensor to test product Cx that radiated electromagnetic wave detects simultaneously, and detected value is mV or dBm, and the waveform of detection record passes to computer and stores.
The detection check device of aforesaid transformer partial discharge and position monitor intelligent assembly, it is characterized in that, described test product Cx is that partial discharge of transformer fault simulation device comprises bushing shell for transformer one, bushing shell for transformer two, electrode model and shell, described bushing shell for transformer is held one by one and is connected the high-voltage connection that step-up transformer is put in described no office, the other end is connected to electrode model, the other end of described electrode model is connected to bushing shell for transformer two, by bushing shell for transformer two ground connection again, the shell good earth of partial discharge of transformer fault simulation device.
The detection check device of aforesaid transformer partial discharge and position monitor intelligent assembly is characterized in that, the mounting means of described UHF sensor is multiple, comprises UHF sensor fuel outlet valve formula frock and UHF sensor OEM frock; Test product Cx shell is cube, and cubical four sides arrange a UHF sensor fuel outlet valve formula frock and a UHF sensor OEM frock respectively, and the UHF sensor fuel outlet valve formula frock on the same side and UHF sensor OEM frock diagonal angle arrange.
The detection check device of aforesaid transformer partial discharge and position monitor intelligent assembly is characterized in that, described electrode model comprises needle plate electrode, ball plate electrode, suspension electrode, along in face electrode, air gap electrode, the plate electrode one or more.
The detection check device of aforesaid transformer partial discharge and position monitor intelligent assembly is characterized in that, described test product Cx adopts nanosecond pulse power supply to offer repeatably pulse signal of one of UHF sensor.
The detection check device of aforesaid transformer partial discharge and position monitor intelligent assembly, it is characterized in that, adopt described detection check device to carry out transformer partial discharge Chao Shengdingwei UHF and locate the verification of online monitoring intelligent component detection, device also further comprises: sonac, localization by ultrasonic monitoring system, UHF positioning monitoring system; The sparking electrode source of trouble is that electrode model is preset at partial discharge of transformer fault simulation device inside, apply high voltage by bushing shell for transformer one, the electrode model other end is linked ground wire by bushing shell for transformer two, and the quantity of sonac and UHF sensor and position are selected according to actual conditions.
The beneficial effects of the utility model are: by the detection check device of transformer partial discharge and position monitor intelligent assembly, can realize the error that localization by ultrasonic is put in the sensitivity drawn game of the transformer partial discharge UHF on-line monitoring verification of testing; The UHF sensor of development is installed the detection that frock can realize polymorphic type UHF sensor simultaneously; By the electrode model of development can analogue transformer typical case's partial discharges fault, carry out the on-line monitoring intelligent assembly to the detection check of all kinds of typical fault monitoring sensitivities.Following advantage is arranged in addition:
1) the UHF sensor of development is installed frock and can be realized that rod-type UHF sensor to the disc type UHF sensor of OEM mounting means and fuel outlet valve mounting means carries out office and puts the sensitivity detection check;
2) but the multiple typical fault of multiple class electrode model analogue transformer shelf depreciation of development, various electrode models (discharging model is put in office) are placed on transformer fault analogue means inside, can carry out detection check on-line monitoring intelligent assembly to monitoring and the identification capability of various faults;
3) sensitivity detection method can detect the minimum sensitivity value of UHF sensor in sensing chamber, and the artificial nanosecond pulse source that obtains by modulation can be used for calibration and the test loop debugging of on-the-spot mounted UHF on-line monitoring system simultaneously;
4) discharge electrode is placed on the diverse location in transformer fault analogue means interior three-dimensional space, carry out error test is carried out in location and the actual discharge position of ultrasound positioning system, UHF positioning system, the sensitivity of detection and verification positioning system (much offices high-volume can carry out detection and localization) and positional accuracy.
Description of drawings
Fig. 1 is the circuit theory synoptic diagram of the detection check device of transformer partial discharge and position monitor intelligent assembly.
Fig. 2 is the structural drawing on partial discharge of transformer fault simulation device among Fig. 1 (that is: test product Cx) plane.
Fig. 3 is that the UHF sensor of partial discharge of transformer fault simulation device among Fig. 2 is installed the structural drawing of frock.
Fig. 4 to Fig. 9 is the electrode model of transformer typical case partial discharges fault among Fig. 2, and wherein: Fig. 4 is needle plate electrode, and Fig. 5 is the ball plate electrode, and Fig. 6 is suspension electrode, and Fig. 7 is along the face electrode, and Fig. 8 is the air gap electrode, and Fig. 9 is plate electrode.
Figure 10 injects and the schematic diagram that detects for nanosecond pulse power supply.
Figure 11 be transformer partial discharge and position monitor intelligent assembly the detection check device localization by ultrasonic UHF positioning principle figure.
Embodiment
In order to understand the present invention better, further illustrate content of the present invention below in conjunction with embodiment, but content of the present invention not only is confined to the following examples.Those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values are equally within the listed claims limited range of the application.
Description of symbols in the accompanying drawing: Fig. 1: 1-220V AC power, 2-isolation filter transformer, 3-do not have office puts step-up transformer, 4-discharge prevention resistance, 5-voltage divider, 6-coupling capacitance Ck, 7-test product Cx, the digital PD meter of 8-, 9-UHF sensor, 10-oscillograph, 11-computer.
Fig. 2: 21-bushing shell for transformer 1,22-bushing shell for transformer 2, the installation of 23-UHF sensor fuel outlet valve, 24-UHF sensor OEM installation, 25-electrode model, 26-tank envelope.
Fig. 3: 31-34:1#-4# UHF sensor fuel outlet valve frock, 35-38:1#-4# UHF sensor OEM frock, 39-UHF sensor top frock.
Fig. 4-Fig. 9: 41-high-field electrode, 42-insulating board, 43-ground-electrode, 44-suspension metal, 45-inherent vice, 46-parallel clearance.
Figure 10: 101-nanosecond pulse power supply.
Figure 11: 111-sparking electrode source of trouble preset position (coordinate can be measured), 112-electrode model (needle plate electrode), 113-bushing, 114-bushing, 115-sonac, 116-localization by ultrasonic monitoring system, 117-UHF positioning monitoring system.
The circuit theory synoptic diagram of the detection check device of the transformer partial discharge that the utility model embodiment provides and position monitor intelligent assembly as shown in Figure 1.Described detection check device comprises that 220V AC power 1, isolation filter transformer 2, no office put step-up transformer 3, discharge prevention resistance 4, voltage divider 5, coupling capacitance Ck6, test product Cx7, digital PD meter 8, UHF sensor 9, oscillograph 10 and computer 11.
The filtering that isolation filter transformer 2 is realized supply harmonic, simultaneously the 220V mains side is disturbed and isolate, avoid introducing the detection check loop, no office puts step-up transformer 3 and realizes that low pressure is to the conversion of high pressure, Cx provides high pressure to test product, test product Cx is partial discharge of transformer fault simulation device in this detection check loop, voltage divider 5 is realized high-tension real-time measurement, digital PD meter 8 adopts pulse current method that test product Cx discharge capacity (pC) is detected, discharging towards periphery by 9 couples of test product Cx of UHF sensor simultaneously, radiated electromagnetic wave detects, detected value is mV or dBm, the waveform of detection record is passed to computer 11 store.
Fig. 2 partial discharge of transformer fault simulation device (test product Cx) planimetric map, Fig. 2 are specifying the test product Cx of Fig. 1.Bushing shell for transformer 1 one ends connect no office and put the high-voltage connection that boosts and become, and bushing shell for transformer 1 other end is connected to electrode model 25, and the other end of electrode model 25 is connected to bushing shell for transformer 2, by bushing shell for transformer 2 ground connection again.The shell good earth of partial discharge of transformer fault simulation device.
The UHF sensor frock position assumption diagram of Fig. 3 partial discharge of transformer fault simulation device (test product Cx), UHF sensor OEM frock is the detection frock of disc type or circular cone type UHF sensor installation site, and namely the OEM of analogue transformer producer installs the UHF approach sensor.UHF sensor fuel outlet valve frock is the detection frock of rod-type UHF sensor installation site, i.e. analogue transformer operation is on-the-spot installs the UHF approach sensor by the fuel outlet valve transformation.Reach the position that the UHF sensor may be installed in the top around the simulated field transformer simultaneously.In the present embodiment, as shown in Figure 3, test product Cx shell is cube, and cubical four sides arrange a UHF sensor fuel outlet valve formula frock and a UHF sensor OEM frock respectively, and the UHF sensor fuel outlet valve formula frock on the same side and UHF sensor OEM frock diagonal angle arrange.
Fig. 4 to Fig. 9 is the electrode model of transformer typical case discharge fault, and described electrode model comprises needle plate electrode, ball plate electrode, suspension electrode, along in face electrode, air gap electrode, the plate electrode one or more.Electrode model can the analogue transformer typical fault, as: floating potential discharge in needle plate discharge in the oil, paper oil insulation discharge, the oil, insulating board is creepage along face, bubble discharge in the oil, insulating board defective etc.; By sleeve pipe high-voltage power supply is linked an end of electrode model, the other end ground connection of electrode model goes out current situation high-volume when voltage is added to certain firing potential.
Figure 10 is that nanosecond pulse power supply injects and the schematic diagram that detects.Nanosecond pulse power supply 101 offers repeatably pulse signal of one of UHF sensor, and the UHF sensor is launched this pulse, the simulation shelf depreciation to around the electromagnetic field of emission, the concrete setting of pulse is the method for face as follows.The parameter request of nanosecond pulse power supply: 1) rise time is less than 1ns; 2) the half-wave time to peak of two exponential waves is greater than 20ns; 3) repetition period: can use less than 100kHz, recommend use 50 or 60Hz.4) amplitude: 0 ~ 60V is adjustable continuously; 5) output impedance: 50 Ω.
Figure 11 be the transformer partial discharge localization by ultrasonic UHF Positioning Principle figure.The sparking electrode source of trouble is preset at the diverse location in transformer fault analogue means interior three-dimensional space, and diverse location can pass through the three-dimensional coordinate actual measurement.Discharging model is chosen to be needle plate electrode, be put into fault simulation device inside in advance, apply high voltage by bushing 113, the electrode model other end is linked ground wire by bushing 114, and the quantity of sonac 115/UHF sensor 9 and position can be selected by producer.Sensor is connected to positioning system by feeder line.Carry out error test is carried out in location and the actual discharge position of ultrasound positioning system, UHF positioning system, the sensitivity of detection and verification positioning system (much offices high-volume can carry out detection and localization) and positional accuracy.
The transformer partial discharge that employing the utility model provides and the detection check Device Testing method of calibration of position monitor intelligent assembly, its step is as follows:
The first step: be used for the analogue transformer partial discharges fault at the inner discharging model that adopts of oil tank of transformer, to electrode model pressurization discharge, produce partial discharges fault by the pressure build-up test loop.Because different faults type, dissimilar sensor, diverse location, the spectrogram that UHF is measured all impacts; Therefore, when carrying out the work of UHF sensor detection check, the clear and definite three kinds of variablees of need trying one's best, usually get a kind of discharge fault type (as: needle plate discharge), same type of sensor compared by (as: the bar type sensor that the collar plate shape that built-in OEM installs, outside fuel outlet valve are installed etc.), same position or near compare.
The transformer fault analog platform can be realized the UHF sensor in the close positions test of comparing, and when local discharge fault takes place, the UHF sensor of settling is in advance arranged also near the fault.For example: electrode model position, simulated failure source is near 1#UHF sensor OEM frock place, because pulse current method is unique method that can realize the local discharge of electrical equipment quantitative measurment, the discharge capacity of this source of trouble can be measured apparent discharge capacity (being assumed to 5pC at this) by traditional pulse current method, the spectrogram that receives by oscillograph recording 2#UHF sensor OEM frock place deposits this spectrogram in computer simultaneously.The arrangement of two UHF sensors is seen Fig. 3.
Second step: adopt artificial nanosecond pulse power supply generator, inject artificial partial discharge pulse for the 1#UHF sensor, send electromagnetic wave by the 1#UHF sensor, receive spectrogram by oscillograph recording 2#UHF sensor, and spectrogram is deposited into computer, compare with the spectrogram of 2#UHF sensor record in the first step, and by adjusting amplitude and the rise time that changes the nanosecond pulse power supply generator, making spectrogram comparison error is in ± 20%, but the nanosecond pulse power supply of adjusting this moment is as the reignition impulse source, and repetition frequency is booster system frequency (being generally 50Hz).
By the millimicrosecond pulse generator of above-mentioned test foundation and the relation between partial discharge quantity (pC), adopt the good millimicrosecond pulse generator of adjusted can repeat to produce the 5pC apparent discharge capacity of supposition before this, for UHF sensor of the same type to be detected or be installed in sensor on the on-the-spot transformer, one of them UHF sensor of the same type is injected in this nanosecond pulse, detect by another UHF sensor of the same type, if can detect spectrogram, illustrate that this sensor has the sensitivity detectability of 5pC.5pC apparent discharge capacity is assumed value, by in sensing chamber to the adjustment of discharging model, can the office of making put the apparent discharge capacity and reach lower, detect more highly sensitive UHF sensor.UHF sensor by partial discharge of transformer fault simulation device is installed the setting of frock, can realize the detection check of number of different types sensor (as: UHF rod-type fuel outlet valve sensor installation, UHF disc type OEM sensor installation).
The minimum sensitivity value that sensitivity detection method can detect the UHF sensor in sensing chamber can be used for the debugging of on-the-spot mounted UHF pick up calibration and test loop simultaneously by the artificial nanosecond pulse source of repeating of sensing chamber's internal modulation acquisition.When on-the-spot transformer partial discharge UHF on-line monitoring has two or more sensor, can modulate the repeated nanosecond pulse source for scene UHF pick up calibration of the same type by the simulation of the realization of transformer fault analog platform frock in sensing chamber to on-the-spot UHF sensor mounting means and position.
This transformer fault analog platform can be by the difference of discharging model, apply voltage and produce shelf depreciation, measure the UHF spectrogram of different electric discharge types, set up experts database through behind the pattern recognition, for follow-up partial discharge of transformer fault type diagnosis provides identification comparison source, be used for identification different insulative defect type.
Employing the utility model detection check device carries out partial discharge of transformer UHF location, localization by ultrasonic detection check method is as follows:
Discharging model is placed on the diverse location in transformer fault analogue means interior three-dimensional space, carry out error test is carried out in location and the actual discharge position of ultrasound positioning system, UHF positioning system, the sensitivity of detection and verification positioning system (much offices high-volume can carry out detection and localization) and positional accuracy.
Partial discharge of transformer UHF is positioned at Xian Jiancexitong intelligent assembly, and reasonable Arrangement UHF sensor can accurately be located Partial Discharge Sources by the mistiming of measuring electromagnetic wave arrival sensor.The transformer fault analog platform can be realized the verification of UHF sensor detection and localization, the calibration of partial discharge of transformer UHF mode positioning system, the setting of the UHF sensor erector holding position by partial discharge of transformer fault simulation device, can realize the Installation And Test of a plurality of number of different types UHF sensors, simultaneously by carrying out the point of discharge blind test, do the error compare of analysis with preset position, can play a game and put UHF and locate online monitoring intelligent assembly and carry out sensitivity and positioning error detection check.
Partial discharge of transformer localization by ultrasonic on-line monitoring system intelligent assembly, put the fuel tank of fault by analogue transformer office, in advance measurement is preset in the position of trouble spot in fuel tank, the office source of putting of fault produces (as: needle plate electrode model) by a kind of electrode model.The localization by ultrasonic on-line monitoring system in the intelligent assembly ultrasonic probe position and number provided voluntarily by merchant to be checked and install, carry out the point of discharge blind test, do the error compare of analysis with preset position, can play a game and put localization by ultrasonic on-line monitoring intelligent assembly and carry out sensitivity and positioning error detection check.
The content that is not described in detail in this instructions belongs to this area professional and technical personnel's known prior art.
Claims (6)
1. the detection check device of a transformer partial discharge and position monitor intelligent assembly, comprise that 220V AC power, isolation filter transformer, no office put step-up transformer, voltage divider, test product Cx, digital PD meter, UHF sensor and computer, it is characterized in that: described isolation filter transformer is realized the filtering to described 220V AC power harmonic wave, simultaneously the alternating current source is disturbed and isolate, avoid introducing the detection check loop; Described no office puts step-up transformer and realizes that low pressure to the conversion of high pressure, provides high pressure to described test product Cx, and test product Cx is partial discharge of transformer fault simulation device in this detection check device; Voltage divider is realized high-tension real-time measurement; Digital PD meter adopts pulse current method that test product Cx discharge capacity pC is detected, and discharges towards periphery by the UHF sensor to test product Cx that radiated electromagnetic wave detects simultaneously, and detected value is mV or dBm, and the waveform of detection record passes to computer and stores.
2. the detection check device of transformer partial discharge according to claim 1 and position monitor intelligent assembly, it is characterized in that, described test product Cx is that partial discharge of transformer fault simulation device comprises bushing shell for transformer one, bushing shell for transformer two, electrode model and shell, described bushing shell for transformer is held one by one and is connected the high-voltage connection that step-up transformer is put in described no office, the other end is connected to electrode model, the other end of described electrode model is connected to bushing shell for transformer two, by bushing shell for transformer two ground connection again, the shell good earth of partial discharge of transformer fault simulation device.
3. the detection check device of transformer partial discharge according to claim 2 and position monitor intelligent assembly is characterized in that, the mounting means of described UHF sensor is multiple, comprises UHF sensor fuel outlet valve formula frock and UHF sensor OEM frock; Test product Cx shell is cube, and cubical four sides arrange a UHF sensor fuel outlet valve formula frock and a UHF sensor OEM frock respectively, and the UHF sensor fuel outlet valve formula frock on the same side and UHF sensor OEM frock diagonal angle arrange.
4. the detection check device of transformer partial discharge according to claim 2 and position monitor intelligent assembly, it is characterized in that described electrode model comprises needle plate electrode, ball plate electrode, suspension electrode, along in face electrode, air gap electrode, the plate electrode one or more.
5. the detection check device of transformer partial discharge according to claim 2 and position monitor intelligent assembly is characterized in that, described test product Cx adopts nanosecond pulse power supply to offer repeatably pulse signal of one of UHF sensor.
6. the detection check device of transformer partial discharge according to claim 2 and position monitor intelligent assembly, it is characterized in that, adopt described device to carry out transformer partial discharge Chao Shengdingwei UHF and locate the verification of online monitoring intelligent component detection, device also further comprises: sonac, localization by ultrasonic monitoring system, UHF positioning monitoring system; The sparking electrode source of trouble is that electrode model is preset at partial discharge of transformer fault simulation device inside, applies high voltage by bushing shell for transformer one, and the electrode model other end is linked ground wire by bushing shell for transformer two.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866377A (en) * | 2012-09-17 | 2013-01-09 | 中国电力科学研究院 | Detection and verification system and method of transformer partial discharge and positioning on-line monitoring assembly |
| CN105137305A (en) * | 2015-09-15 | 2015-12-09 | 国网浙江省电力公司电力科学研究院 | Simulator and simulation system of internal faults of transformer |
| CN112363100A (en) * | 2020-11-11 | 2021-02-12 | 贵州电网有限责任公司 | Fault detection device for state monitoring sensor |
| CN113589116A (en) * | 2021-08-11 | 2021-11-02 | 山东通广电子有限公司 | Method and system for detecting partial discharge position |
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2012
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866377A (en) * | 2012-09-17 | 2013-01-09 | 中国电力科学研究院 | Detection and verification system and method of transformer partial discharge and positioning on-line monitoring assembly |
| CN102866377B (en) * | 2012-09-17 | 2016-03-09 | 中国电力科学研究院 | The detection check system and method for the online monitoring assembly of transformer partial discharge and location |
| CN105137305A (en) * | 2015-09-15 | 2015-12-09 | 国网浙江省电力公司电力科学研究院 | Simulator and simulation system of internal faults of transformer |
| CN112363100A (en) * | 2020-11-11 | 2021-02-12 | 贵州电网有限责任公司 | Fault detection device for state monitoring sensor |
| CN112363100B (en) * | 2020-11-11 | 2023-10-20 | 贵州电网有限责任公司 | Fault detection device of state monitoring sensor |
| CN113589116A (en) * | 2021-08-11 | 2021-11-02 | 山东通广电子有限公司 | Method and system for detecting partial discharge position |
| CN113589116B (en) * | 2021-08-11 | 2024-06-04 | 山东通广电子股份有限公司 | Method and system for detecting partial discharge position |
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