CN207832889U - A kind of zinc oxide lightning arrester block property current test system based on Zigbee - Google Patents
A kind of zinc oxide lightning arrester block property current test system based on Zigbee Download PDFInfo
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- CN207832889U CN207832889U CN201820315573.7U CN201820315573U CN207832889U CN 207832889 U CN207832889 U CN 207832889U CN 201820315573 U CN201820315573 U CN 201820315573U CN 207832889 U CN207832889 U CN 207832889U
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Abstract
This application discloses a kind of, and the zinc oxide lightning arrester block property current based on Zigbee tests system, system includes Zinc-Oxide Arrester, Zinc-Oxide Arrester pedestal, differential current sensor, Zigbee current in resistance property harvesters, voltage collector, TV secondary terminals case and testing current in resistance property instrument, wherein, Zinc-Oxide Arrester is fixed on Zinc-Oxide Arrester pedestal；One end of Zinc-Oxide Arrester is connect with high pressure drainage conducting wire；The other end of Zinc-Oxide Arrester is connected with down conductor；Down conductor is equipped with differential current sensor；Differential current sensor is connected with Zigbee current in resistance property harvesters；Voltage collector is connected with TV secondary terminals casees；Testing current in resistance property instrument and voltage collector, Zigbee current in resistance property harvesters are all made of communication connection.Test system provided by the present application can accurately and rapidly test arrester resistance current without using current signal shielding line.
Description
Technical field
It is the invention relates to technical field of electrical measurement, more particularly to a kind of without using current signal shielding line
In the case of accurately and rapidly test testing current in resistance property of lightning arrester system.
Background technology
Zinc-Oxide Arrester has good nonlinear wind vibration, makes the electricity that arrester is flowed through in normal working voltage
It flows minimum (microampere or milliampere grade)；When overvoltage acts on, resistance drastically declines, and the energy for overvoltage of releasing reaches protection
Effect.And Zinc-Oxide Arrester does not have to series gap, simple in structure, volume-diminished, and antifouling property is good, is avoided that because of porcelain
The outer filth of set keeps series gap discharge voltage unstable；The through-current capability of zinc oxide valve plate is very big, and operating duty ability is high
The advantages that obtain extensive use in the power system.
Zinc-Oxide Arrester be susceptible in use make moist, the failures such as aging, and Zinc-Oxide Arrester is resistive
Electric current can reflect its operation conditions, can judge oxidisability arrester according to the result of variations to current in resistance property and its harmonic component
Performance, therefore, being measured to the current in resistance property of running oxidisability arrester just seems particularly necessary.In the prior art,
Electrification (or online) measurement method is generally used to the arrester of working voltage 35kV or more, test arrester is in working voltage
Under the data such as total current, current in resistance property or power attenuation, it is general using wireless when to oxidisability testing current in resistance property of lightning arrester
Collection voltages signal is communicated, using current line short circuit in arrester discharge counter both ends and line access current in resistance property survey after tested
Instrument is tried to acquire current signal.
However, when the prior art is tested at the scene, current acquisition line is generally longer, is needed after one group of arrester test more
Current acquisition line could be linked on another group of arrester by people's cooperation, cause labor intensive, testing efficiency low；On the other hand,
Live arrester ground downlead overbrushing has paint, and poor contact may be caused in short circuit discharge counter repeatedly and causes to adopt
Collection is less than current signal, and acquisition stability is poor so that final test precision is not high.
Utility model content
This application provides a kind of, and the zinc oxide lightning arrester block property current based on Zigbee tests system, to solve existing skill
Test process in art is cumbersome, labor intensive and the low problem of measuring accuracy, and the test system of the application can be for multigroup
The current in resistance property of Zinc-Oxide Arrester or a plurality of circuit can switch rapidly in a short time to be tested, and testing efficiency is high.
This application provides a kind of, and the zinc oxide lightning arrester block property current based on Zigbee tests system, the current in resistance property
Test system includes Zinc-Oxide Arrester, Zinc-Oxide Arrester pedestal, differential current sensor, Zigbee current in resistance property acquisition dress
It sets, voltage collector, TV secondary terminals case and testing current in resistance property instrument, wherein
The Zinc-Oxide Arrester is fixed on the Zinc-Oxide Arrester pedestal；
One end of the Zinc-Oxide Arrester is connect with high pressure drainage conducting wire；
The other end of the Zinc-Oxide Arrester is connected with down conductor；
The down conductor is equipped with the differential current sensor；
The differential current sensor is connected with the Zigbee current in resistance property harvester；
The voltage collector is connected with the TV secondary terminals case；
The testing current in resistance property instrument and the voltage collector, the Zigbee current in resistance property harvester is all made of logical
Letter connection.
Optionally, the testing current in resistance property system further includes arrester discharge counter, and the lightning arrester discharge counts
Device is located on the down conductor.
Optionally, the differential current sensor is loop coil of the uniform winding on nonferromugnetic material, institute
State the hub of a spool that down conductor passes through the differential current sensor.
Optionally, the Zigbee current in resistance property harvester includes integrating circuit, chromacoder and communication module,
The output end of the integrating circuit is connected to the input terminal of the chromacoder, and the output end of the chromacoder connects
It is connected to the input terminal of the communication module.
By above technical scheme it is found that the embodiment of the present application provides a kind of zinc oxide lightning arrester block property based on Zigbee
Current detecting system, the system comprises Zinc-Oxide Arrester, Zinc-Oxide Arrester pedestal, differential current sensor, Zigbee
Current in resistance property harvester, voltage collector, TV secondary terminals case and testing current in resistance property instrument, wherein the zinc oxide is lightning-arrest
Device is fixed on the Zinc-Oxide Arrester pedestal；One end of the Zinc-Oxide Arrester is connect with high pressure drainage conducting wire；It is described
The other end of Zinc-Oxide Arrester is connected with down conductor；The down conductor is equipped with the differential current sensor；
The differential current sensor is connected with the Zigbee current in resistance property harvester；The voltage collector and the TV bis-
Secondary terminal box is connected；The testing current in resistance property instrument and the voltage collector, the Zigbee current in resistance property harvester
It is all made of communication connection.System and method provided by the embodiments of the present application are resistive by the way that differential current sensor and Zigbee is arranged
The current in resistance property of reduction is sent to testing current in resistance property instrument, in testing crew without using current signal by current collecting device
Accurately and rapidly arrester resistance current is tested in the case of shielding line, avoids inefficiency caused by manual operation.
Description of the drawings
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram that a kind of zinc oxide lightning arrester block property current based on Zigbee of the application tests system；
Fig. 2 is the resistive electricity of Zigbee in a kind of zinc oxide lightning arrester block property current test system based on Zigbee of the application
Flow the composition schematic diagram of harvester；
Wherein, 01- Zinc-Oxide Arresters, 02- high pressures drain conducting wire, 03- Zinc-Oxide Arrester pedestals, under 04- grounding leads
Line, 05- differential current sensors, 06-Zigbee current in resistance property harvesters, 061- integrating circuit, 062- chromacoders,
063- communication modules, 07- arrester discharge counters, 08- voltage collectors, 09- testing current in resistance property instrument, 10-TV secondary terminals
Sub- case.
Specific implementation mode
Referring to Fig. 1, show for a kind of structure that the zinc oxide lightning arrester block property current based on Zigbee tests system of the application
It is intended to.
As shown in Figure 1, a kind of zinc oxide lightning arrester block property current test based on Zigbee provided by the embodiments of the present application
System includes Zinc-Oxide Arrester 01, Zinc-Oxide Arrester pedestal 03, differential current sensor 05, the acquisition of Zigbee current in resistance property
Device 06, voltage collector 08, TV secondary terminals case 10 and testing current in resistance property instrument 09, wherein
The Zinc-Oxide Arrester 01 is fixed on the Zinc-Oxide Arrester pedestal 03；
One end of the Zinc-Oxide Arrester 01 is connect with high pressure drainage conducting wire 02；
The other end of the Zinc-Oxide Arrester 01 is connected with down conductor 04；
The down conductor 04 is equipped with the differential current sensor 05；
The differential current sensor 05 is connected with the Zigbee current in resistance property harvester 06；
The voltage collector 08 is connected with the TV secondary terminals case 10；
The testing current in resistance property instrument 09 and the voltage collector 08, the Zigbee current in resistance property harvester 06 are equal
Using communication connection.
By above technical scheme it is found that the embodiment of the present application provides a kind of zinc oxide lightning arrester block property based on Zigbee
Current detecting system is below illustrated the function of each critical piece in this system and effect respectively：
Zinc-Oxide Arrester 01：Zinc-Oxide Arrester is the arrester for having good protection performance.It is good using zinc oxide
Nonlinear wind vibration, keep the electric current for flowing through arrester in normal working voltage minimum (microampere or milliampere grade)；Electricity is served as
When pressure acts on, resistance drastically declines, and the energy for overvoltage of releasing achievees the effect that protection.This arrester and traditional lightning-arrest
The difference of device, which is it, does not have discharging gap, plays the role of aerial drainage using the nonlinear characteristic of zinc oxide and cut-offs.In this implementation
In example, electric current to be measured is directed into arrester by the high pressure drainage conducting wire 02 positioned at 01 top of the Zinc-Oxide Arrester.
Further, when testing at the scene, the Zinc-Oxide Arrester 01 is generally divided into A, B, C three-phase, is using process
In, the differential current sensor 05 need to be stuck in the grounding lead of A, B, C three-phase lightning protector connection of same interval
On offline, tested after this interval is tested into, then to next interval.
Differential current sensor 05：Acquisition, which is flowed through to surround, obtains the voltage signal that electric current is formed on coil in circumferential coils,
Obtain current signal, to reach the true electricity flowed through in the enclosed circumference of coil of reduction after again voltage signal being integrated by integrator
The purpose of stream.
Zigbee current in resistance property harvester 06：ZigBee is the low-power consumption LAN association based on IEEE802.15.4 standards
View.It is provided according to international standard, ZigBee technology is the wireless communication technique of a kind of short distance, low-power consumption.This title is (also known as
ZigBee protocol) from honeybee eight words wave, due to honeybee (bee) be by circle in the air and " drone " (zig) shake wing " wave
Step " carry out azimuth information where transmitting pollen with companion, that is to say, that and honeybee constitutes the communication in group by such mode
Network.Its main feature is that short distance, low complex degree, self-organizing, low-power consumption, low data rate.Be mainly suitable for for automatically controlling and
Remote control field can be embedded in various equipment.In brief, ZigBee is exactly a kind of cheap, the short distance nothing of low-power consumption
Line networking mechanics of communication.ZigBee is a kind of wireless network protocol of low speed short-distance transmission.Zigbee protocol divides from top to bottom
It Wei not physical layer (PHY), MAC layer (MAC), transport layer (TL), network layer (NWK), application layer (APL) etc..Wherein
Physical layer and MAC layer follow the regulation of IEEE 802.15.4 standards.In the present embodiment, the Zigbee is resistive
Current collecting device 06 can realize the output signal to the time after the differential current sensor 05 collects output signal
The function of input current is really restored after integral, and the analog signal of input current is converted into digital signal, it finally will be digital
Signal is sent to the testing current in resistance property instrument 09 in real time.
Testing current in resistance property instrument 09：Every electrical characteristic of the complete detection Zinc-Oxide Arrester in Operation of Electric Systems
Special instrument.It is the special instrument for detecting Zinc-Oxide Arrester electric property, is suitable for the zinc oxide of various voltage class
The electrification of arrester or the detection that has a power failure, so that timely discovering device built-in electrical insulation makes moist and the dangerous defects such as valve block aging；At this
In embodiment, the testing current in resistance property instrument 09, the number letter that the Zigbee current in resistance property harvester 06 can be sent to
After number being converted into analog signal, calculating ratio pair is carried out with the voltage signal that the voltage collector 08 sends over, obtains voltage
Fundamental wave Ux, total current virtual value Ix, the phase difference Ф of the advanced fundamental voltage of fundamental current, current in resistance property virtual value Ir, resistive electricity
Stream peak value Irp, resistance current fundamental peak Ir1p, current in resistance property triple-frequency harmonics peak I r3p, current in resistance property quintuple harmonics peak value
Ir5p, current in resistance property the seventh harmonic peak I r7p, capacity current fundamental wave peak I c1p, the measurement results such as active-power P, to real
The test of existing arrester resistance current, wherein the current first harmonics peak I r1p and the advanced fundamental voltage of the fundamental current
Phase difference Φ can intuitively weigh the performance of Zinc-Oxide Arrester.
Voltage collector 08：It will be sent to the current in resistance property from the 10 collected voltage signal of TV secondary terminals case
Tester 09.
By above technical scheme it is found that a kind of zinc oxide lightning arrester block property based on Zigbee provided by the embodiments of the present application
The general work process of current detecting system is：
One, three differential current sensors are stuck in the grounding lead of A, B, C three-phase lightning protector in same interval
On offline, and open test power supply；
Two, testing current in resistance property instrument is opened, and establishes testing current in resistance property instrument and voltage collector, Zigbee current in resistance property
Communication connection between harvester；
Three, Zigbee current in resistance property harvester acquires current signal and is sent to testing current in resistance property instrument；Meanwhile voltage
Collector collection voltages signal is sent to testing current in resistance property instrument；
Four, the current signal received, voltage signal are compared testing current in resistance property instrument through processing, obtain test knot
Fruit.
By above technical scheme it is found that a kind of zinc oxide lightning arrester block property current based on Zigbee provided in this embodiment
Test system includes Zinc-Oxide Arrester 01, Zinc-Oxide Arrester pedestal 03, differential current sensor 05, Zigbee current in resistance property
Harvester 06, voltage collector 08, TV secondary terminals case 10 and testing current in resistance property instrument 09, wherein the zinc oxide is lightning-arrest
Device 01 is fixed on the Zinc-Oxide Arrester pedestal 03；One end of the Zinc-Oxide Arrester 01 connects with high pressure drainage conducting wire 02
It connects；The other end of the Zinc-Oxide Arrester 01 is connected with down conductor 04；The down conductor 04 is equipped with described micro-
Divide current sensor 05；The differential current sensor 05 is connected with the Zigbee current in resistance property harvester 06；It is described
Voltage collector 08 is connected with the TV secondary terminals case 10；The testing current in resistance property instrument 09 and the voltage collector
08, the Zigbee current in resistance property harvester 06 is all made of communication connection.System provided by the embodiments of the present application passes through setting
Differential current sensor and Zigbee current in resistance property harvesters, testing current in resistance property instrument is sent to by the current in resistance property of reduction,
In testing crew without using accurately and rapidly being tested arrester resistance current in the case of current signal shielding line,
Inefficiency caused by avoiding manual operation.
Optionally, the testing current in resistance property system further includes arrester discharge counter 07, the lightning arrester discharge meter
Number device 07 is located on the down conductor 04.
Electricity discharigng counter for arrester is a kind of High-Voltage Electrical Appliances for monitoring lightning arrester discharge action, is constructed by non-thread
Property resistance, message register and some electronic components composition.Under normal operating voltage, the leakage current of counter is flowed through very
Small, counter is failure to actuate.When arrester is by lightning wave, operation wave and when power-frequency overvoltage, powerful operating current is from counting
The nonlinear resistance of device passes through, and by DC converting, discharges electromagnetic coil and so that counter is inhaled and move once, to realize that measurement is kept away
The device of thunder device action frequency.Resistor disc pressure, electromagnetic coil action, counter is used to show in structure, transparent glass cover,
Sealed rubber pad, negative and flange etc. carry out clamping sealing, and high-voltage terminal end is drawn from bottom plate center.It uses and keeps away in the present embodiment
Thunder device discharge counter can accurately calculate effective discharge time, reflect the action frequency of arrester.
Optionally, the differential current sensor 05 is loop coil of the uniform winding on nonferromugnetic material,
The down conductor 04 passes through the hub of a spool of the differential current sensor 05.
It is Zigbee in a kind of zinc oxide lightning arrester block property current test system based on Zigbee of the application referring to Fig. 2
The composition schematic diagram of current in resistance property harvester.
Optionally, the Zigbee current in resistance property harvester 06 includes integrating circuit 061,062 He of chromacoder
Communication module 063, the output end of the integrating circuit 061 are connected to the input terminal of the chromacoder 062, the signal
The output end of conversion equipment 062 is connected to the input terminal of the communication module 063.
Further, the integrating circuit 061 can be by collected signal to time integral operation, really to be restored
Input current；The analog signal of input is converted into digital signal by the chromacoder 062, makes it can be by the communication
Module 063 is sent out.
In conclusion the embodiment of the present application provides a kind of zinc oxide lightning arrester block property current test system based on Zigbee
System, the system comprises Zinc-Oxide Arresters 01, Zinc-Oxide Arrester pedestal 03, and differential current sensor 05, Zigbee is resistive
Current collecting device 06, voltage collector 08, TV secondary terminals case 10 and testing current in resistance property instrument 09, wherein the zinc oxide
Arrester 01 is fixed on the Zinc-Oxide Arrester pedestal 03；One end of the Zinc-Oxide Arrester 01 drains conducting wire with high pressure
02 connection；The other end of the Zinc-Oxide Arrester 01 is connected with down conductor 04；The down conductor 04 is equipped with institute
State differential current sensor 05；The differential current sensor 05 is connected with the Zigbee current in resistance property harvester 06；
The voltage collector 08 is connected with the TV secondary terminals case 10；The testing current in resistance property instrument 09 and the voltage acquisition
Device 08, the Zigbee current in resistance property harvester 06 are all made of communication connection；Test system provided by the embodiments of the present application is logical
Setting differential current sensor and Zigbee current in resistance property harvesters are crossed, the current in resistance property of reduction, which is sent to current in resistance property, to be surveyed
Instrument is tried, accurately and rapidly arrester resistance current is carried out in the case where testing crew is without using current signal shielding line
Test, avoids inefficiency caused by manual operation.
Those skilled in the art will readily occur to this practicality after considering specification and putting into practice utility model disclosed herein
Novel other embodiments.This application is intended to cover any variations, uses, or adaptations of the utility model, these
Variations, uses, or adaptations follow the general principle of the utility model and include undocumented skill of the utility model
Common knowledge in art field or conventional techniques.The description and examples are only to be considered as illustrative, the utility model
True scope and spirit are indicated by the following claims.
It should be understood that the utility model is not limited to the accurate knot for being described above and being shown in the accompanying drawings
Structure, and various modifications and changes may be made without departing from the scope thereof.The scope of the utility model is only wanted by appended right
It asks to limit.
Claims (4)
1. a kind of zinc oxide lightning arrester block property current based on Zigbee tests system, which is characterized in that the current in resistance property is surveyed
Test system includes Zinc-Oxide Arrester (01), and Zinc-Oxide Arrester pedestal (03), differential current sensor (05), Zigbee is resistive
Current collecting device (06), voltage collector (08), TV secondary terminals case (10) and testing current in resistance property instrument (09), wherein
The Zinc-Oxide Arrester (01) is fixed on the Zinc-Oxide Arrester pedestal (03)；
One end of the Zinc-Oxide Arrester (01) is connect with high pressure drainage conducting wire (02)；
The other end of the Zinc-Oxide Arrester (01) is connected with down conductor (04)；
The down conductor (04) is equipped with the differential current sensor (05)；
The differential current sensor (05) is connected with the Zigbee current in resistance property harvester (06)；
The voltage collector (08) is connected with the TV secondary terminals case (10)；
The testing current in resistance property instrument (09) and the voltage collector (08), the Zigbee current in resistance property harvester (06)
It is all made of communication connection.
2. a kind of zinc oxide lightning arrester block property current based on Zigbee according to claim 1 tests system, feature
It is, the testing current in resistance property system further includes arrester discharge counter (07), the arrester discharge counter (07)
On the down conductor (04).
3. a kind of zinc oxide lightning arrester block property current based on Zigbee according to claim 1 tests system, feature
It is, the differential current sensor (05) is loop coil of the uniform winding on nonferromugnetic material, the ground connection
Downlead (04) passes through the hub of a spool of the differential current sensor (05).
4. a kind of zinc oxide lightning arrester block property current based on Zigbee according to claim 1 tests system, feature
It is, the Zigbee current in resistance property harvester (06) includes integrating circuit (061), chromacoder (062) and communication
The output end of module (063), the integrating circuit (061) is connected to the input terminal of the chromacoder (062), the letter
The output end of number conversion equipment (062) is connected to the input terminal of the communication module (063).
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| CN201820315573.7U CN207832889U (en) | 2018-03-08 | 2018-03-08 | A kind of zinc oxide lightning arrester block property current test system based on Zigbee |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108226625A (en) * | 2018-03-08 | 2018-06-29 | 云南电网有限责任公司电力科学研究院 | A kind of zinc oxide lightning arrester block property current test system and test method based on Zigbee |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226625A (en) * | 2018-03-08 | 2018-06-29 | 云南电网有限责任公司电力科学研究院 | A kind of zinc oxide lightning arrester block property current test system and test method based on Zigbee |
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