CN206710543U - A kind of hand-held binary channels partial discharge detection device - Google Patents
A kind of hand-held binary channels partial discharge detection device Download PDFInfo
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- CN206710543U CN206710543U CN201720426356.0U CN201720426356U CN206710543U CN 206710543 U CN206710543 U CN 206710543U CN 201720426356 U CN201720426356 U CN 201720426356U CN 206710543 U CN206710543 U CN 206710543U
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Abstract
The utility model discloses a kind of hand-held binary channels partial discharge detection device, including central processing unit, ultrahigh-frequency signal input channel, ultrasonic signal input channel and synchronized signal input channel and signal output apparatus, ultrahigh-frequency signal input channel includes being used for the extra-high video sensor for gathering caused extra-high frequency electromagnetic waves during shelf depreciation, the output signal of extra-high video sensor is transmitted to the signal input part of signal condition unit, the signal output part of signal condition unit and inputted through A/D change-over circuits to central processing unit；Ultrasonic signal input channel includes being used for the ultrasonic sensor for gathering caused ultrasonic wave during shelf depreciation, the output signal of the signal output part of ultrasonic sensor is transmitted to the signal input part of signal condition unit, the signal output part of signal condition unit and inputted through A/D change-over circuits to central processing unit.It has the characteristics that easy to carry, measurement is quick, is easy to onsite application.
Description
Technical field
It the utility model is related to a kind of hand-held binary channels partial discharge detection device.
Background technology
With GIS extensive use, GIS device operational reliability causes the generally pass of international community and power department
Note.From the point of view of nearly 40 years operating experience, insulation fault is one of major reason for influenceing GIS reliabilities all the time, and shelf depreciation is
Cause GIS device insulation degradation until the main forms that arcing fault occurs.Once there is insulation fault, pole inside GIS
Equipment fault is easily caused, power system normal operation will be destroyed, had undesirable effect to national economy and social normal order.It is existing
It is big with the presence of partial discharge detection instrument volume, not readily portable, only single Measurement channel, poor anti jamming capability, measurement result essence
The shortcomings of degree is not high.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of hand-held binary channels partial discharge detection device, and it, which has, takes
Band is convenient, measurement is quick, is easy to the features such as onsite application.
In order to solve the above technical problems, technical solution adopted in the utility model is：
A kind of hand-held binary channels partial discharge detection device, including central processing unit, ultrahigh-frequency signal input channel, ultrasonic wave
Signal input channel and synchronized signal input channel and signal output apparatus, ultrahigh-frequency signal input channel include being used to adopt
Collect shelf depreciation when caused extra-high frequency electromagnetic waves extra-high video sensor and signal condition unit, extra-high video sensor it is defeated
Go out signal transmit it is defeated through A/D change-over circuits to the signal input part of signal condition unit, the signal output part of signal condition unit
Enter to central processing unit；Ultrasonic signal input channel includes being used for the ultrasonic wave for gathering caused ultrasonic wave during shelf depreciation
Sensor and signal condition unit, the output signal of the signal output part of ultrasonic sensor are transmitted to the letter of signal condition unit
Number input, the signal output part of signal condition unit are inputted to central processing unit through A/D change-over circuits；Ultrahigh-frequency signal inputs
Passage is identical with the signal condition unit structure of ultrasonic signal input channel：By signal input part to signal output part successively by
Ac signal amplifiers, filter circuit are connected with logarithmic detector circuit；Synchronized signal input channel includes being used to receive
The wireless transmitter module of synchronized signal and the wireless receiving module being adapted with wireless transmitter module, wireless receiving module
Output signal is inputted to central processing unit.
The utility model further improvement is that：
Signal output apparatus includes at least one following equipment being connected respectively with central processing unit I/O output ports：Ear
Machine, External memory equipment, LCDs and RJ45 network interfaces.
It is using beneficial effect caused by above-mentioned technical proposal：
Equipment is designed using hand-held, Wince system developments, and equipment is light and handy, easy to carry, measurement is quick, is easy to scene
Use；Extra-high video sensor is attached to tank wall, and sonac is along the gap Scanning Detction on switch cubicle, to power equipment without appointing
What is damaged, and the operation to equipment has no effect；Dual channel detection makes testing result refer to mutually, improves testing result
The degree of accuracy；Analog filtering is combined with digital filtering, improves signal to noise ratio, is strengthened antijamming capability, is made measurement data more accurate；
Inside and outside two kinds of synchronous triggering modes can select, and external trigger uses wireless synchronization module, is stablized and phase of accurately discharging
Position；The device can carry out the observation of signal multicycle, and frequency identification is carried out to electric discharge, and be analyzed by various modes, can
Clearly judge whether switch cubicle breaks down.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The utility model is further elaborated below in conjunction with the drawings and specific embodiments.
Embodiment as shown in Figure 1 understands that the present embodiment includes central processing unit, ultrahigh-frequency signal input channel, ultrasound
Ripple signal input channel and synchronized signal input channel and signal output apparatus, ultrahigh-frequency signal input channel include being used for
The extra-high video sensor of caused extra-high frequency electromagnetic waves when gathering shelf depreciation, the output signal of extra-high video sensor transmit to
The signal input part of signal condition unit, the signal output part of signal condition unit are inputted to central processing through A/D change-over circuits
Device；Ultrasonic signal input channel includes being used for the ultrasonic sensor for gathering caused ultrasonic wave during shelf depreciation, ultrasound
The output signal of the signal output part of wave sensor is transmitted to the signal input part of signal condition unit, the letter of signal condition unit
Number output end is inputted to central processing unit through A/D change-over circuits；Ultrahigh-frequency signal input channel and ultrasonic signal input channel
Signal condition unit structure it is identical：By signal input part to signal output part successively by ac signal amplifiers, filter circuit
It is connected with logarithmic detector circuit；Synchronized signal input channel includes being used for the wireless transmission mould for receiving synchronized signal
Block and the wireless receiving module being adapted with wireless transmitter module, the output signal of wireless receiving module are inputted to central processing
Device.
Signal output apparatus includes earphone, External memory equipment, the liquid being connected respectively with central processing unit I/O output ports
Crystal display screen and RJ45 network interfaces.
In the present embodiment, A/D change-over circuits use AD7713, and the chip linearity is good, conversion accuracy is high, has calibration side
The features such as formula is more, low in energy consumption, it is very suitable for the application of high accuracy, low power consumption data acquisition system；Pair of signal condition unit
Log power detection chip AD8313 is selected in number detecting circuit, its bandwidth range covering 0.1GHz~2.5GHz, is had simultaneously
There is the features such as high accuracy, dynamic range are high, low in energy consumption；Central processing unit uses the band of Fei Ling embedded technologys Co., Ltd production
There are 210 flush bonding modules of wince6.0 systems, the internal memories of 512M Byte DDR II, 1G Byte SLC NAND Flash, 16
Parallel bus, it can directly collect the data of A/D change-over circuits；Wireless transmitter module and wireless receiving module are based on SX1212's
Wireless module, contain the integrated circuit of radio-frequency enabled and logic control function, have transmission range it is relatively remote, reception it is sensitive
Spend higher, the plurality of advantages such as operating power consumption is low.
Operation principle：
Extra-high video sensor/sonac is responsible for gathering the extra-high frequency electromagnetic waves/ultrasound supervened during shelf depreciation
Ripple signal, sensor collection result is transmitted by input to respective signal condition unit accordingly by coaxial cable, it is defeated
(i.e. amplified signal, suppresses interference signal, and compression is wide for amplification of the signal entered through signal conditioning circuit, filtering, logarithmic detector processing
Dynamic Signal of scope etc.) two-way A/D change-over circuits are transmitted to, the analog electrical signal received is converted into counting by A/D change-over circuits
Word signal is transferred to central processing unit and carries out analysis storage.Testing staff can by film key control central processing unit so as to
The operation setting to device is realized, ultrasonic filtered audio signal and oscillogram are exported by audible sound by earphone, pass through outside
Storage device exports to PC by data are detected and creates examining report, by RJ45 network interfaces (Ethernet interface) by test data
Host computer monitoring is transmitted in real time.
The shelf depreciation of test product typically occurs in 0~90 ° of test voltage, in 180 °~270 ° of phase range, with experiment
Voltage-phase has close ties.The signal that detects and power network are carried out effective synchronous, know the zero phase of test voltage,
Identification shelf depreciation and interference are very beneficial.It is in selection synchronous (wireless transmitter module and to be adapted with wireless transmitter module
Wireless receiving module is now invalid), exactly allow test system inside to produce the signal of a power frequency and carry out analogue synchronization signal, can
There is the phase information that reference ground provides partial discharge test signal, in situation many inconvenient or that actual synchronization signal can not be obtained
Under, can be with virtual phase to generate discharge spectrum；But selection internal synchronization mode is, it is necessary to which tester has the warp compared with horn of plenty
Test, in addition, power network frequency in itself and unstable, and interior is synchronously assigned frequency, has phase deviation therebetween, may be made
Electric discharge collection of illustrative plates loses referring to property completely.Now, outer synchronous triggering just has a not replaceable significance, wireless transmitter module from
220V experiment power supplies obtain with institute's making alive same frequency, the sine voltage signal of same-phase, and these information are passed through wireless
The mode of transmission is sent to wireless receiving module, and then is used for system synchronization.
Claims (2)
- A kind of 1. hand-held binary channels partial discharge detection device, it is characterised in that：It is logical including central processing unit, ultrahigh-frequency signal input Road, ultrasonic signal input channel and synchronized signal input channel and signal output apparatus, the ultrahigh-frequency signal input Passage includes being used for the extra-high video sensor and signal condition unit for gathering caused extra-high frequency electromagnetic waves during shelf depreciation, institute The output signal for stating extra-high video sensor is transmitted to the signal input part of signal condition unit, the signal of the signal condition unit Output end is inputted to central processing unit through A/D change-over circuits；The ultrasonic signal input channel includes being used to gather local put The ultrasonic sensor and signal condition unit of caused ultrasonic wave when electric, the signal output part of the ultrasonic sensor Output signal is transmitted to the signal input part of signal condition unit, the signal output part of the signal condition unit to be changed through A/D Circuit is inputted to central processing unit；The signal condition unit of the ultrahigh-frequency signal input channel and ultrasonic signal input channel Structure is identical：By signal input part to signal output part successively by ac signal amplifiers, filter circuit and logarithmic detector circuit It is connected；The synchronized signal input channel include be used for receive synchronized signal wireless transmitter module and with it is wireless The wireless receiving module that transmitter module is adapted, the output signal of the wireless receiving module are inputted to central processing unit.
- A kind of 2. hand-held binary channels partial discharge detection device according to claim 1, it is characterised in that：The signal output Device includes at least one following equipment being connected respectively with central processing unit I/O output ports：Earphone, External memory equipment, LCDs RJ45 network interfaces.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720426356.0U CN206710543U (en) | 2017-04-21 | 2017-04-21 | A kind of hand-held binary channels partial discharge detection device |
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| CN201720426356.0U CN206710543U (en) | 2017-04-21 | 2017-04-21 | A kind of hand-held binary channels partial discharge detection device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900972A (en) * | 2019-02-13 | 2019-06-18 | 济南爱我本克网络科技有限公司 | A kind of centimeter wave and ultrasonic directed radiation receive measuring device |
| CN110213909A (en) * | 2019-06-27 | 2019-09-06 | 安徽华东光电技术研究所有限公司 | A kind of production method of Ku band dual channel detection module |
| CN113625134A (en) * | 2021-08-06 | 2021-11-09 | 国网山西省电力公司太原供电公司 | Portable ultrahigh frequency and ultrasonic wave integrated monitoring device for transformer |
-
2017
- 2017-04-21 CN CN201720426356.0U patent/CN206710543U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900972A (en) * | 2019-02-13 | 2019-06-18 | 济南爱我本克网络科技有限公司 | A kind of centimeter wave and ultrasonic directed radiation receive measuring device |
| CN110213909A (en) * | 2019-06-27 | 2019-09-06 | 安徽华东光电技术研究所有限公司 | A kind of production method of Ku band dual channel detection module |
| CN113625134A (en) * | 2021-08-06 | 2021-11-09 | 国网山西省电力公司太原供电公司 | Portable ultrahigh frequency and ultrasonic wave integrated monitoring device for transformer |
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