CN206531919U - A kind of combined local discharge of electrical equipment live detection equipment - Google Patents
A kind of combined local discharge of electrical equipment live detection equipment Download PDFInfo
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- CN206531919U CN206531919U CN201720132521.1U CN201720132521U CN206531919U CN 206531919 U CN206531919 U CN 206531919U CN 201720132521 U CN201720132521 U CN 201720132521U CN 206531919 U CN206531919 U CN 206531919U
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Abstract
A kind of combined local discharge of electrical equipment live detection equipment, provided with DAF, also include plug and play and detect terminal, plug and play detects that terminal is connected by the USB interface of USB line and DAF, and detect that terminal is powered to plug and play by USB interface from DAF, plug and play detection terminal is intelligence sensor, using Intelligence sensor as standardization peripheral hardware, live individual soldier's operation of electrical device status inspection is realized by flexibly combining, flexibility and Eco-power unification is realized.
Description
Technical field
The utility model is related to high voltage electric equipment live detection and repair based on condition of component field, particularly relates to a kind of combined
Local discharge of electrical equipment live detection equipment.
Background technology
It is tired by producing if shelf depreciation continuously emerges under working voltage in insulation of electrical installation in high voltage electric equipment
Product effect can gradually degrade the dielectric properties of insulation and expand local defect, and final insulation breakdown causes failure.Through
Test and show, the shelf depreciation of live line measurement electrical equipment is to prevent a kind of effective ways of electrical equipment malfunction.
The object of electrical equipment partial discharge detection generally can be divided into four major classes, and switch cubicle, power cable, transformer and GIS are set
It is standby.The local discharge characteristic that different objects is showed is different, and corresponding detection means is also different.Switch cabinet main will
Transient earth voltage and ultrasonic wave are detected, power cable predominantly detects high frequency electric and ultrasonic wave, and transformer predominantly detects high-frequency electrical
Stream and ultrasonic wave, GIS device predominantly detect hyperfrequency and ultrasonic wave.The type and quantity for the electrical equipment that different clients possesses
It is discrepant, corresponding detection demand is also different.
Current partial discharge detection is equipped or for a certain electrical equipment type, if client has to another type of detection
If demand, it is necessary to separately purchase equipment, expense is not said, in addition it is also necessary to which time and efforts deacclimatizes new equipment；Or equipment is to institute
Some partial discharge features are detected, large and complete, and equipment is heavy, and cost is high, are needed if client only has to a certain electrical equipment type
If asking, from this testing equipment, very big waste can be caused.
Processing of the current partial discharge detection equipment to transducing signal is such, and sensor is connected with equipment by coaxial cable
Connect, the conditioning of signal is carried out in equipment, and the decay of this processing mode signal is difficult to avoid that, and transducing signal particularly hyperfrequency
It is typical weak signal with ultrasonic wave, this decay most likely results in the missing inspection of useful signal, has a strong impact on the sensitive of detection
Degree.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of combined local discharge of electrical equipment live detection
Equipment, using Intelligence sensor as standardization peripheral hardware, the live individual soldier of electrical device status inspection is realized by flexibly combining
Operation, realizes flexibility and Eco-power unification.
To realize above-mentioned technical purpose, the technical scheme used is：A kind of combined local discharge of electrical equipment band
Electro-detection is equipped, provided with the DAF with power circuit, in addition to plug and play detection terminal, plug and play detection
Terminal is connected by the USB interface of USB line and DAF, and from the power circuit of DAF to plug and play
Detection terminal is powered, and described plug and play detection terminal is to be equipped with intelligence sensor, intelligence sensor before signal transacting
Circuits, described signal transacting front end circuit is made up of modulate circuit and signal processing circuit, and the probe of intelligence sensor leads to
Modulate circuit, signal processing circuit is crossed to electrically connect with USB line, intelligence sensor be transient earth voltage sensing, ultrasonic sensor,
One or more of thermal infrared sensor or uhf sensor are combined.
It is described in the utility model that temporarily too ground voltage sensor includes probe, USB line and temporary too ground voltage signal transacting
Front end circuit, transient earth voltage signal transacting front end circuit is by impedance matching circuit, logarithmic amplifying circuit and signal processing circuit
Composition, probe passes sequentially through impedance matching circuit, logarithmic amplifying circuit, signal processing circuit and electrically connected with USB line.
Ultrasonic sensor described in the utility model includes ultrasonic probe, USB line and ultrasonic signal before processing
Circuits, ultrasonic signal handles front end circuit by amplifying circuit, analog frequency mixing circuit, local oscillation circuit, audio effect circuit, band
Bandpass filter circuit and signal processing circuit composition, probe pass sequentially through amplifying circuit, analog frequency mixing circuit, bandpass filtering electricity
Road, signal processing circuit are electrically connected with USB line, and local oscillation circuit is also associated with analog frequency mixing circuit.
Audio power amplifier circuit is also associated with bandwidth-limited circuit described in the utility model.
Uhf sensor described in the utility model includes hyperfrequency probe, USB line and ultra-high frequency signal before processing
Circuits, ultra-high frequency signal handle front end circuit by amplifying circuit, detecting circuit, follow circuit, impedance matching circuit, signal
Circuit composition is managed, hyperfrequency probe passes sequentially through amplifying circuit, detecting circuit, follows circuit, impedance matching circuit, signal transacting
Circuit is electrically connected with USB line.
Thermal infrared sensor described in the utility model includes optical system, photodetector, USB interface and thermal infrared
Signal transacting front end circuit, thermal infrared signal transacting front end circuit is made up of amplifying circuit and signal processing circuit, optical system
Photodetector, amplifying circuit, signal processing circuit is passed sequentially through to electrically connect with USB line.
DAF described in the utility model is industrial panel computer.
The utility model beneficial effect is：
On the premise of this controller switching equipment Partial Discharge Detection is equipped in assurance function performance, improve to client's different demands
Adaptability, detection means can be combined for customer demand, be customized, reach flexibility and Eco-power unification.
By the customized product different with combination composition of the selection to intelligence sensor, the difference in market can be met
Demand.Each intelligence sensor can work independently, even if single group sensor, which breaks down, nor affects on whole system work.If
Newly-increased detection means, can design independent detection module and be carried out as single sub-project using the standard interface established before
Exploitation.
Using the organizational structure of the n DAF of intelligence sensor front end+1, the intelligence sensor of front end is carried
Embedded system ensure that the real-time of signal acquisition, and backstage provides powerful calculating ability, front end for the analyzing and diagnosing of data
Displayed one's respective advantages with backstage.
Because signal processing circuit is preposition, antijamming capability enhancing, detection sensitivity improves a lot.
The structure on this front end-backstage, after customization, can both save cost, decrease specification of equipment；User has
Extension demand, adds new intelligence sensor, or same specification and interface, and testing staff's learning curve is flat, can
To put into as early as possible in job task.
Powered and single current supply circuit without battery, power supply is provided for intelligence sensor by usb standard interfaces, it is convenient
User, without to check battery status, changing battery and disturbing normal Detection task.
A variety of detection means are combined, multi-angle multiplicity, with reference to sufficient detection data accumulation, can be provided for client
More readily apparent decision recommendation.
Brief description of the drawings
Fig. 1 is theory diagram of the present utility model；
Fig. 2 is the theory diagram of transient earth voltage sensor of the present utility model；
Fig. 3 is the theory diagram of ultrasonic sensor of the present utility model；
Fig. 4 is the theory diagram of uhf sensor of the present utility model；
Fig. 5 is the theory diagram of thermal infrared sensor of the present utility model.
Embodiment
For four major class electrical equipments, detection means has common part, by combination, proposes a kind of combined electric
Apparatus local discharge testing equipment.Detection data are collected and analyzed, and can be provided the user according to Comprehensive analysis results
Basic aid decision suggestion, complete set, flexible, efficient solution are provided for the repair based on condition of component of controller switching equipment.
Whole equipment includes intelligent transient earth voltage sensor, the ultrasound of DAF and several plug and play types
Wave sensor, thermal infrared sensor and uhf sensor composition.
It is standard interface between DAF and intelligence sensor, is connected by Universal USB line, to realize to intelligence
The control and power supply of sensor and the collection for detecting data；The use of standard interface is also provided just for follow-up product extension
Sharp condition.
DAF mainly realizes the control of the detection to different intelligent type sensor unit and monitoring in real time；Detect number
According to preservation and analysis, its technological means used for prior art set, for example, transient earth voltage detector, ultrasonic wave
Detector, enthrabometer, thermal infrared imaging instrument.
Intelligence sensor carries out the collection and transmission of controller switching equipment status data, based on the intelligent of integrated design theory
Sensor, its sensor element, modulate circuit and data acquisition and information-processing circuit are entirely encapsulated in together, are realized micro-
The site and digitized processing of weak signal, it is to avoid because detection sensitivity reduction is asked caused by analog signal long-distance transmissions
Topic.
DAF（1）Implement power supply supply, instruction control and parameter regulation to intelligence sensor；And intelligent sensing
Device then can be according to DAF（1）Sensing is uploaded after the control instruction collection signal sent, conditioned signal and process signal
Data are to DAF（1）For its storage analysis；DAF（1）Pass through a pair of usb cables with intelligence sensor
One connection, the function of usb cables is to provide communication port for the two and provide power supply supply for intelligence sensor.Sensor can root
According to spread is needed, freely insert, the typical characteristics efficient of power equipment is extracted, passes through usb interfaces
Upload, draw comprehensive analysis result.
DAF（1）It is made up of the strong industrial panel computer of Operational Data Analysis platform software.Realization pair
The detection control and monitoring in real time of each Intelligence sensor；Detect the storage of data and the retrieval of historical data；Testing result
Threshold Analysis and horizontal analysis；The overall merit of controller switching equipment state；Controller switching equipment machine account is filed and data exporting；
Parameter setting relevant with data analysis etc. is detected with sensor.
Intelligence sensor has transient earth voltage sensor, open type ultrasonic sensor, thermal infrared temperature transducer at present
With the type of uhf sensor four, follow-up intelligence sensor type can be extended according to demand, increase new detection means.
Intelligence sensor is by popping one's head in, modulate circuit, and signal processing circuit is constituted, and different sensors has different modulate circuits, signal
Process circuit realized by embedded computer, completes the AD conversion of signal, data processing and by usb to DAF
（1）Transmit data.
Transient earth voltage sensor unit is mainly used to detect the interior insulation defect of controller switching equipment part, corona discharge, hanged
The defects such as floating current potential, principal character is exactly that discharge signal has higher rate of change.Signal amplifies after impedance matching circuit, send
After logarithmic amplifying circuit processing, signal transacting is carried out by the signal processing circuit of embedded chip.DAF（1）Receive temporary
State the ground information that transmits of electric original sensor, PRPD collection of illustrative plates, the distribution probability of record storage, in real time display transient earth voltage signal
Figure, real-time detector data and continuous monitoring curve, produce related statements as needed.
Open type ultrasonic sensor is mainly used to detect that such as insulator and sleeve pipe are because filth causes inside controller switching equipment
Creeping discharge or climb electricity, principal character is exactly that discharge signal has relatively low rate of change.Amplified using Program-controlled Linear and mixed
Frequency heterodyne technology, output signal is exported to data acquisition circuit and audio frequency power amplifier output circuit simultaneously, maintains numeral output letter
Number and audio output signal user uniformity.The ultrasonic signal that user can both have been produced by headphone monitor shelf depreciation,
Can also be by the power frequency correlation of the real-time waveform intuitive judgment ultrasonic signal for observing ultrasonic signal.DAF
（1）Receive the information that sensor is transmitted, the real-time sampling waveform of record storage, in real time display ultrasonic signal（2 power frequency periods
Waveform after interior mixing）, real-time measuring data, PRPD collection of illustrative plates and continuous monitoring curve, related statements are produced as needed.
The surface infrared temperature and environment temperature of thermal infrared temperature transducer non-contact synchronous measuring measurand, to send out
Inside existing controller switching equipment because of reasons such as loose contact, overloads issuable heat spot.Optical system is converged in its visual field
Target Infrared Radiation energy, infrared energy is gathered on photodetector and is changed into corresponding electric signal, amplified and processed
Obtain the temperature value of measured target.DAF（1）The information that sensor is transmitted is received, record storage, in real time display is matched somebody with somebody
The surface temperature and environment temperature numerical value of electric equipment, and continuous monitoring rod figure is generated, related statements are produced as needed.
The uhf electromagnetic wave (300~3000MHz) of uhf sensor detection shelf depreciation radiation, shelf depreciation is produced
Electromagnetic impulse have it is sudden.The amplification of signal amplified circuit, detecting circuit detection useful signal, then through follow circuit every
From then mistake impedance matching circuit, signal transacting is carried out by embedded computer.DAF（1）Sensor is received to pass
The information come, record storage, in real time the display PRPD collection of illustrative plates of ultra-high frequency signal, distribution probability figure, real-time detector data and continuous
Monitoring curve, produces related statements as needed.
Claims (7)
1. a kind of combined local discharge of electrical equipment live detection equipment, it is characterised in that：Provided with DAF, also
Terminal is detected including plug and play, plug and play detects that terminal is connected by the USB interface of USB line and DAF, and
Detect that terminal is powered to plug and play by USB interface from DAF, described plug and play detection terminal is intelligence
Be equipped with signal transacting front end circuit in sensor, intelligence sensor, described signal transacting front end circuit by modulate circuit and
Signal processing circuit is constituted, the probe collection signal of intelligence sensor, is nursed one's health by modulate circuit, signal processing circuit is digitized
Afterwards, data are uploaded by USB line, intelligence sensor is transient earth voltage sensing, ultrasonic sensor, thermal infrared sensor or super
One or more of high frequency sensors are combined.
2. a kind of combined local discharge of electrical equipment live detection equipment as claimed in claim 1, it is characterised in that：Institute
The transient earth voltage sensor stated includes probe, USB line and transient earth voltage signal transacting front end circuit, transient earth voltage letter
Number processing front end circuit is made up of impedance matching circuit, logarithmic amplifying circuit and signal processing circuit, and probe passes sequentially through impedance
Match circuit, logarithmic amplifying circuit, signal processing circuit are electrically connected with USB line.
3. a kind of combined local discharge of electrical equipment live detection equipment as claimed in claim 1, it is characterised in that：Institute
The ultrasonic sensor stated includes ultrasonic probe, USB line and ultrasonic signal processing front end circuit, ultrasonic signal processing
Front end circuit is by amplifying circuit, analog frequency mixing circuit, local oscillation circuit, audio effect circuit, bandwidth-limited circuit and signal
Circuit composition is managed, probe passes sequentially through amplifying circuit, analog frequency mixing circuit, bandwidth-limited circuit, signal processing circuit and USB line
Electrical connection, local oscillation circuit is also associated with analog frequency mixing circuit.
4. a kind of combined local discharge of electrical equipment live detection equipment as claimed in claim 3, it is characterised in that：Institute
Audio power amplifier circuit is also associated with the bandwidth-limited circuit stated.
5. a kind of combined local discharge of electrical equipment live detection equipment as claimed in claim 1, it is characterised in that：Institute
The uhf sensor stated includes hyperfrequency probe, USB line and ultra-high frequency signal processing front end circuit, ultra-high frequency signal processing
Front end circuit by amplifying circuit, detecting circuit, follow circuit, impedance matching circuit, signal processing circuit to constitute, hyperfrequency probe
Pass sequentially through amplifying circuit, detecting circuit, follow circuit, impedance matching circuit, signal processing circuit to be electrically connected with USB line.
6. a kind of combined local discharge of electrical equipment live detection equipment as claimed in claim 1, it is characterised in that：Institute
The thermal infrared sensor stated includes optical system, photodetector, USB interface and thermal infrared signal transacting front end circuit, heat
Infrared signal processing front end circuit be made up of amplifying circuit and signal processing circuit, optical system pass sequentially through photodetector,
Amplifying circuit, signal processing circuit are electrically connected with USB line.
7. a kind of combined local discharge of electrical equipment live detection equipment as claimed in claim 1, it is characterised in that：Institute
The DAF stated is industrial panel computer.
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| CN201720132521.1U CN206531919U (en) | 2017-02-14 | 2017-02-14 | A kind of combined local discharge of electrical equipment live detection equipment |
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| CN201720132521.1U CN206531919U (en) | 2017-02-14 | 2017-02-14 | A kind of combined local discharge of electrical equipment live detection equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841946A (en) * | 2017-02-14 | 2017-06-13 | 吴笃贵 | A kind of combined local discharge of electrical equipment live detection equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841946A (en) * | 2017-02-14 | 2017-06-13 | 吴笃贵 | A kind of combined local discharge of electrical equipment live detection equipment |
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Address after: Room 2101, No. 33 Shuixian Road, Siming District, Xiamen City, Fujian Province, 361000 Patentee after: Wu Dugui Country or region after: China Patentee after: Dehua Technology (Henan) Co.,Ltd. Address before: 461000, 100 meters west of the intersection of Labor North Road and Hongteng Road in Weidu Industrial Agglomeration Zone, Xuchang City, Henan Province, China. Chronological Science and Technology Industrial Park Patentee before: Wu Dugui Country or region before: China Patentee before: JINIAN TECHNOLOGY CO.,LTD. |