CN108333458A - A kind of device measuring Zinc-Oxide Arrester electric property - Google Patents
A kind of device measuring Zinc-Oxide Arrester electric property Download PDFInfo
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- CN108333458A CN108333458A CN201810438712.XA CN201810438712A CN108333458A CN 108333458 A CN108333458 A CN 108333458A CN 201810438712 A CN201810438712 A CN 201810438712A CN 108333458 A CN108333458 A CN 108333458A
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- Prior art keywords
- module
- zinc
- oxide arrester
- wireless
- electric property
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The present invention relates to a kind of devices measuring Zinc-Oxide Arrester electric property, including wired measuring unit, wireless measurement unit, sensor assembly for measurement, signal processing module, main control module and power module, the wired measuring unit includes and the wired analog-to-digital conversion module being electrically connected of sensor assembly, wireless measurement unit includes wireless module, the wireless module obtains gathered data directly from sensor assembly by wireless signal and is transferred to signal processing module by wireless module, the signal processing module is used to calculate analysis and obtains the electric data of Zinc-Oxide Arrester and be transmitted to main control module；The power module is used to provide power supply to whole device；The device can combine live line measurement and on-line measurement two ways, and wiring is simple and convenient, and real-time operational analysis and display can be carried out to the data measured.
Description
Technical field
The present invention relates to charge control fields, more particularly, to a kind of device measuring Zinc-Oxide Arrester electric property.
Background technology
Zinc-Oxide Arrester be for protecting the electric equipment products that various electrical equipments are damaged from overvoltage in electric system,
With good protection performance.But Zinc-Oxide Arrester meeting aging, damage or failure, may cause large-scale power accident, cause
Power equipment damages, and supply line has a power failure.Therefore, seem to the Zinc-Oxide Arrester progress performance detection in circuit and very must
It wants.
Zinc-Oxide Arrester is mainly detected in the case of electrification at present, is carried out essentially according to following manner：First
The leakage current of Zinc-Oxide Arrester is taken off with sampling unit, calculates the peak value of electric current, virtual value, current in resistance property value,
Then collection voltages mutual inductor secondary side voltage, calculates phase angle between voltage fundamental and current first harmonics, and testing crew is according to letting out
The size of the size of leakage current, the size of current in resistance property and phase angle judges the performance of arrester.
At present measure Zinc-Oxide Arrester electric property mode substantially there are two types of, one is live line measurement, another kind is
On-line measurement.By the way of manual inspection, testing crew carries measuring instrument for live line measurement, and current measurement clip is placed
The leakage current of Zinc-Oxide Arrester is obtained in the upper and lower ends of arrester discharge counter, while using wired or wireless
Mode obtain the voltage signal of voltage transformer, to measure the relevant parameter of Zinc-Oxide Arrester, after measurement,
Testing crew closes instrument and lays down related line；On-line monitoring need in advance everywhere measurement point place monitoring unit, so
The measurement of data can be carried out on the host on backstage afterwards, monitoring unit is placed and needs to carry out in the event of a loss of power, Mei Gejian
It surveys between unit and host and is communicated using modes such as wireless, optical fiber or GPRS, after installation is complete, it is difficult to being torn open
Unload, thus whole system there is invest huge, system complex, verification is difficult the shortcomings of, moreover, having no idea be fitted without
It is monitored on the Zinc-Oxide Arrester of monitoring unit.
Invention content
The technical problem to be solved by the present invention is to for the prior art there are the problem of provide a kind of combination online and
The device of the measurement Zinc-Oxide Arrester electric property of two kinds of measurement methods of electrification.
Technical solution is used by the present invention solves above-mentioned technical problem：A kind of measurement Zinc-Oxide Arrester electric property
Device, it is characterised in that：Including wired measuring unit, wireless measurement unit, for the sensor assembly of measurement, signal processing
Module, main control module and power module, the wired measuring unit include and the wired analog-to-digital conversion being electrically connected of sensor assembly
Module, wireless measurement unit include wireless module, and the wireless module is directly obtained from sensor assembly by wireless signal
Gathered data is simultaneously transferred to signal processing module by wireless module, and the signal processing module obtains oxidation for calculating analysis
The electric data of zinc arrester is simultaneously transmitted to main control module；The power module is used to provide power supply to whole device.
Further, the sensor assembly includes the current transformer for the electric current of wired measuring Zinc-Oxide Arrester
With the voltage transformer for the wired or wireless voltage for measuring Zinc-Oxide Arrester, the current transformer uses split-core type meter.
Further, the split-core type meter be equipped with compensation circuit, the compensation circuit include bucking coil N, power amplifier and
First operational amplifier A, one end of bucking coil N connect the cathode of the first operational amplifier A, the other end of bucking coil N and
The anode of first operational amplifier A is electrically connected over the ground, is connected to after the output end Series power amplifier of the first operational amplifier A
With the positive terminal of split-core type meter itself coil N, the negative pole end of split-core type meter itself coil N is the output that split-core type meter measures, and split-core type meter itself coil N makees
For secondary coil, the coil N of Zinc-Oxide Arrester is as primary coil.
Further, the wireless module is binary channels interface, and a channel interface is the three of collection voltages mutual inductor simultaneously
Phase voltage signal, another channel interface are the synchronous voltage signal of the single-phase in collection voltages mutual inductor.
Further, the binary channels interface for wireless module being corresponded in the signal processing module is respectively equipped with different calculating
Analysis mode, the channel for corresponding to acquisition three-phase voltage signal use Fourier's calculation, correspond to acquisition phase synchronization electricity
Press signal that phase shift calculation, Fourier's calculation is used to be applied to wired measuring simultaneously.
Further, the power module includes power panel, the high-capacity lithium battery being electrically connected with power panel and charging
Mouthful, when being measured in a manner of wireless measurement mould, institute's electricity demand is provided by lithium battery, can be carried out within the electric quantity of lithium battery duration
Wireless measurement.
Further, further include the data memory module being electrically connected with main control module, for showing Zinc-Oxide Arrester electricity
The display module of gas performance data, the key-press module for debugging and operating, for the temperature sensing of subsidiary environment temperature
The PC interfaces at device module and the external ends PC.
Compared with prior art, beneficial effects of the present invention are as follows：The device can combine live line measurement and on-line measurement
Two ways is placed on and carries out several days, some months or long-term on-line monitoring work on tested Zinc-Oxide Arrester, needs group
Net, the data that user only need to regularly read system storage with PC machine can show that tested Zinc-Oxide Arrester is being supervised in PC machine
Data in shield period can also show the data such as busbar voltage, humiture, while can also be used as testing instrument for electrified,
And wiring is simple and convenient, and real-time operational analysis and display can be carried out to the data measured.
Description of the drawings
Fig. 1 is a kind of structure diagram for the device measuring Zinc-Oxide Arrester electric property of the present invention.
Fig. 2 is a kind of structure diagram for the device wired measuring unit measuring Zinc-Oxide Arrester electric property of the present invention.
Fig. 3 is a kind of structure diagram for the device wireless measurement unit measuring Zinc-Oxide Arrester electric property of the present invention.
Fig. 4 is the concrete structure block diagram of Fig. 1.
Fig. 5 is the circuit diagram of compensation circuit in a kind of device measuring Zinc-Oxide Arrester electric property of the present invention.
Specific implementation mode
Below in conjunction with attached drawing embodiment, present invention is further described in detail.
As shown in Figure 1 and Figure 4, a kind of device measuring Zinc-Oxide Arrester electric property, including wired measuring unit
100, wireless measurement unit 200, the sensor assembly 300 for measurement, signal processing module 400, main control module 500 and power supply
Module 600, wired measuring unit 100 include and the wired analog-to-digital conversion module 110 being electrically connected of sensor assembly 300, wireless survey
It includes wireless module 210 to measure unit 200, and wireless module 210 obtains acquisition by wireless signal directly from sensor assembly 300
Data are simultaneously transferred to signal processing module 400 by wireless module 210, which can be with optical fiber or GPRS etc., signal
Processing module 400 is used to calculate analysis and obtains the electric data of Zinc-Oxide Arrester and be transmitted to main control module 500；Power module
600 to whole device for providing power supply.
As shown in Fig. 2, in wired measuring unit 100, sensor assembly 300 measures obtained signal by amplifying, filtering
Etc. after processing of circuit by 110 conversion digital signal of analog-to-digital conversion module, signal processing module 400 is from analog-to-digital conversion module 110
From the digital signal for obtaining sampled data, is analyzed by Fourier's calculation of signal processing module 400, calculate zinc oxide
The data such as total current, fundamental harmonic resistant leakage current, the voltage and current fundamental signal phase angle of arrester.
As shown in figure 3, in wireless measurement unit 200, sensor assembly 300 measures obtained signal by amplifying, filtering
Etc. collected data are directly transmitted to by signal processing unit by wireless module 210 after processing of circuit, due to wireless module 210
For binary channels interface, a channel interface is the three-phase voltage signal of collection voltages mutual inductor simultaneously, and another channel interface is acquisition
The synchronous voltage signal of single-phase in voltage transformer, wireless module 210 is the individually synchronization in acquisition B phases in the present embodiment
Voltage signal, the difference of the gathered data of corresponding different channel interface, is transported in signal processing unit using different analyses
Calculation method, the channel that acquisition three-phase voltage signal is corresponded in the present embodiment use Fourier's calculation, it is single to correspond to acquisition
The voltage signal that is synchronised uses phase shift calculation.
Sensor assembly 300 includes 310 He of split-core type meter for the electric current of wired measuring Zinc-Oxide Arrester in the present embodiment
For the voltage transformer 320 of the wired or wireless voltage for measuring Zinc-Oxide Arrester, in order to solve existing split-core type meter on the market
It than difference and the big problem of angular difference, and then helps and improves the precision that split-core type meter measures, the present embodiment is equipped with compensation electricity to above-mentioned split-core type meter
Road 311, as shown in figure 5, secondary coil N1 represents the current measurement end of measured Zinc-Oxide Arrester, secondary coil N2 represents pincers
The coil of table itself, above-mentioned compensation circuit include bucking coil N3, power amplifier and the first operational amplifier A 1, bucking coil
One end of N3 connects the cathode of the first operational amplifier A 1, the anode of the other end of bucking coil N3 and the first operational amplifier A 1
It is electrically connected, is connected to after the output end Series power amplifier of the first operational amplifier A 1 with split-core type meter itself coil N2 just over the ground
Extremely, the negative pole end of coil N2 is the output that the split-core type meter after bucking coil N3 compensation measures, and coil N2 cathode, which are rectified, connects string
Join second operational amplifier A2, series resistance R2 on the output end of second operational amplifier A2, second operational amplifier A2 are to use
In the voltage signal for loading both ends with amiable amplification coil N2, resistance R2 is the electricity for switching to be not easy to be disturbed voltage signal
Stream signal promotes the precision of measurement in order to measure.
Above-mentioned power module 600 includes power supply 610, the high-capacity lithium battery 620 being electrically connected with power panel 610 and charging
Mouth 630 provides institute's electricity demand when being measured in a manner of wireless measurement mould by lithium battery 620, when 620 electricity of lithium battery continues
It is interior to carry out wireless measurement.
The device further includes the data memory module 700, display module 800, key-press module being electrically connected with main control module 500
900, data memory module 700 can store data for a long time, directly can read number by external card reader or data line
According to the data in memory module 700, display module 800 is for showing Zinc-Oxide Arrester electric property data, key-press module 900
Operation for debugging and operating the device is further equipped with for the temperature sensor 1100 of subsidiary environment temperature and outer
Connect the PC interfaces 1200 at the ends PC.
The interference of live electromagnetic field in order to prevent, a screen for having good shielding action to electromagnetic field has also been devised in we
Cover box (not shown), the material selection of the shielding box stainless iron with high conductance and magnetic conductivity, shielding box are using
When need to be grounded.
The foregoing is merely the preferred embodiment of the present invention, it is noted that for those of ordinary skills,
Under the premise of not departing from the principle of the present invention, a variety of remodeling or improvement can be carried out to the present invention, these are regarded as the present invention
Protection domain within.
Claims (7)
1. a kind of device measuring Zinc-Oxide Arrester electric property, it is characterised in that：Including wired measuring unit (100), nothing
Line measuring unit (200), the sensor assembly (300) for measurement, signal processing module (400), main control module (500) and electricity
Source module (600), the wired measuring unit (100) include and the wired analog-to-digital conversion mould being electrically connected of sensor assembly (300)
Block (110), wireless measurement unit (200) include wireless module (210), and the wireless module (210) is direct by wireless signal
Gathered data is obtained from sensor assembly (300) and signal processing module (400), institute are transferred to by wireless module (210)
State signal processing module (400) for calculates analyze obtain Zinc-Oxide Arrester electric data and be transmitted to main control module
(500)；The power module (600) is used to provide power supply to whole device.
2. a kind of device measuring Zinc-Oxide Arrester electric property as described in claim 1, it is characterised in that：The sensing
Device module (300) includes for the current transformer of the electric current of wired measuring Zinc-Oxide Arrester and for wired or wireless measurement
The voltage transformer of the voltage of Zinc-Oxide Arrester, the current transformer use split-core type meter.
3. a kind of device measuring Zinc-Oxide Arrester electric property as described in claim 1, it is characterised in that：The split-core type meter
Equipped with compensation circuit, the compensation circuit includes bucking coil N3, power amplifier and the first operational amplifier A 1, bucking coil
One end of N3 connects the cathode of the first operational amplifier A 1, the anode of the other end of bucking coil N3 and the first operational amplifier A 1
It is electrically connected, is connected to after the output end Series power amplifier of the first operational amplifier A 1 with split-core type meter itself coil N2 just over the ground
Extremely, the negative pole end of split-core type meter itself coil N2 is the output that split-core type meter measures, and split-core type meter itself coil N2 is as secondary coil, zinc oxide
The coil N1 of arrester is as primary coil.
4. a kind of device measuring Zinc-Oxide Arrester electric property as claimed in claim 2, it is characterised in that：It is described wireless
Module (210) is binary channels interface, and a channel interface is the three-phase voltage signal of collection voltages mutual inductor simultaneously, and another channel connects
Mouth is the synchronous voltage signal of the single-phase in collection voltages mutual inductor.
5. a kind of device measuring Zinc-Oxide Arrester electric property as claimed in claim 4, it is characterised in that：The signal
The binary channels interface that wireless module (210) is corresponded in processing module (400) is respectively equipped with different calculating analysis modes, corresponds to
The channel for acquiring three-phase voltage signal uses Fourier's calculation, corresponds to acquisition phase synchronization voltage signal and uses phase shift meter
Calculation mode, Fourier's calculation are applied to wired measuring simultaneously.
6. a kind of device measuring Zinc-Oxide Arrester electric property as described in claim 1, it is characterised in that：The power supply
Module (600) includes power panel (610), the high-capacity lithium battery (620) and charging interface that are electrically connected with power panel (610)
(630), when being measured in a manner of wireless measurement mould, institute's electricity demand is provided by lithium battery (620), electricity is held in lithium battery (620)
Wireless measurement can be carried out in the continuous time.
7. a kind of device measuring Zinc-Oxide Arrester electric property as described in claim 1, it is characterised in that：Further include with
The data memory module (700) of main control module (500) electrical connection, the display for showing Zinc-Oxide Arrester electric property data
Module (800), the key-press module (900) for debugging and operating, for the temperature sensor of subsidiary environment temperature
(1100) and the PC interfaces at the external ends PC (1200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810438712.XA CN108333458A (en) | 2018-05-09 | 2018-05-09 | A kind of device measuring Zinc-Oxide Arrester electric property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810438712.XA CN108333458A (en) | 2018-05-09 | 2018-05-09 | A kind of device measuring Zinc-Oxide Arrester electric property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108333458A true CN108333458A (en) | 2018-07-27 |
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ID=62934718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810438712.XA Pending CN108333458A (en) | 2018-05-09 | 2018-05-09 | A kind of device measuring Zinc-Oxide Arrester electric property |
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| Country | Link |
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| CN (1) | CN108333458A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108953A (en) * | 2018-12-19 | 2019-08-09 | 国网浙江省电力有限公司岱山县供电公司 | A kind of 10kV distribution transforming gear electrification capacity checking device |
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| CN204028194U (en) * | 2014-06-26 | 2014-12-17 | 镇江瑞清电子科技有限公司 | A kind of self compensation small current mutual inductor |
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| CN205786925U (en) * | 2016-07-01 | 2016-12-07 | 国网江苏省电力公司宿迁供电公司 | A kind of Zinc-Oxide Arrester on-line monitoring and the diagnostic equipment |
| EP3258278A1 (en) * | 2016-06-14 | 2017-12-20 | LSIS Co., Ltd. | Device for detecting partial discharges accounting for temperature and humidity |
| CN208350908U (en) * | 2018-05-09 | 2019-01-08 | 国家电网公司 | A kind of device measuring Zinc-Oxide Arrester electric property |
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2018
- 2018-05-09 CN CN201810438712.XA patent/CN108333458A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202196111U (en) * | 2011-07-11 | 2012-04-18 | 广东电网公司电力科学研究院 | Zinc oxide arrester monitoring device |
| CN202275122U (en) * | 2011-10-13 | 2012-06-13 | 王玉江 | Universal type detector of zinc oxide arrester |
| CN203084097U (en) * | 2012-12-17 | 2013-07-24 | 北京光耀电力自动化有限公司 | On-line zinc oxide lightning arrester state monitoring device |
| CN204028194U (en) * | 2014-06-26 | 2014-12-17 | 镇江瑞清电子科技有限公司 | A kind of self compensation small current mutual inductor |
| CN104678226A (en) * | 2015-03-17 | 2015-06-03 | 国家电网公司 | Zinc oxide arrester remote monitoring diagnosis system based on virtual instrument technique |
| EP3258278A1 (en) * | 2016-06-14 | 2017-12-20 | LSIS Co., Ltd. | Device for detecting partial discharges accounting for temperature and humidity |
| CN105929284A (en) * | 2016-06-24 | 2016-09-07 | 国网辽宁省电力有限公司抚顺供电公司 | Wireless tester and testing method for live-line measuring zinc oxide arrester |
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| CN208350908U (en) * | 2018-05-09 | 2019-01-08 | 国家电网公司 | A kind of device measuring Zinc-Oxide Arrester electric property |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108953A (en) * | 2018-12-19 | 2019-08-09 | 国网浙江省电力有限公司岱山县供电公司 | A kind of 10kV distribution transforming gear electrification capacity checking device |
| CN110108953B (en) * | 2018-12-19 | 2024-01-19 | 国网浙江省电力有限公司岱山县供电公司 | 10kV joins in marriage and changes gear electrified verifying device |
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Application publication date: 20180727 |