CN108680604A - A kind of suspension insulator pollution degree monitoring system and method - Google Patents
A kind of suspension insulator pollution degree monitoring system and method Download PDFInfo
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- CN108680604A CN108680604A CN201810483327.7A CN201810483327A CN108680604A CN 108680604 A CN108680604 A CN 108680604A CN 201810483327 A CN201810483327 A CN 201810483327A CN 108680604 A CN108680604 A CN 108680604A
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
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- 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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1245—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of line insulators or spacers, e.g. ceramic overhead line cap insulators; of insulators in HV bushings
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Abstract
This application provides a kind of suspension insulator pollution degrees to monitor system and method, which includes：Taking can divider, noninductive resistance, leakage current monitoring modular, humidity collection module, processor, sampling suspension insulator.It takes energy divider to be connect by disconnecting switch with sampling suspension insulator, energy divider is taken to be connect with leakage current monitoring modular and humidity collection module, noninductive resistance is connect with sampling suspension insulator, and humidity collection module is connect with leakage current monitoring modular.Leakage current signal and air humidity data are compared by processor with the pollution degree judgment curves pre-established, obtain the pollution degree of sampling suspension insulator；Then it compared with preset pollution degree alarming value, alarms if the pollution degree of sampling suspension insulator is more than preset pollution degree alarming value, it is on the contrary then do not alarm.The real-time monitoring and alarm of the sub- operating condition of analog insulation are realized, it is easy to operate, time-consuming short, efficient, and be live monitoring, reduce the influence brought by power failure.
Description
Technical field
This application involves electric measurement fields more particularly to a kind of suspension insulator pollution degree to monitor system and method.
Background technology
Insulator is a kind of special insulation control, and important potential isolation can be played in overhead transmission line and is made
With.Insulator is chiefly used in electric pole between one's early years, and the one end for being slowly developed in high type high-tension bus-bar connection tower has hung many plate-likes
Insulator, it is just to be insulator to increase creepage distance, be usually made of glass or ceramics.
In the process of running, the various particles such as dust, saline and alkaline, industrial fumes in air or birds droppings are all for overhead transmission line
Outer surface of insulator can be deposited in and form pollution layer.In recent years, China's industrial and agricultural production rapidly develops, atmosphere pollution aggravation, defeated
Electric line pollution flashover problem is on the rise.According to statistics, in the total accident number of electric system, pollution flashover accident number is only second to damage to crops caused by thunder, position
Second is occupied, and the loss caused by pollution flashover accident is 10 times of lightning strike accident.Excessive face nearly all occurs for national six bulk power grids
Contamination is dodged, and prodigious economic loss is caused.
In terms of pollution flashover prevention, power department, which has been formulated, a series of such as to be increased creepage distances, applies dirt resistance coatings, using having
Machine composite insulator periodically cleans, replaces the Flash Decontamination Measurements such as bad or zero resistance insulator, achieves certain effect.On but
The prevention for stating Flash Decontamination Measurements substantially and be passive-type, effectively assesses insulator dirty degree due to lacking, leads to pollution flashover
Control effect is less desirable.The prior art to the assessment of insulator dirty degree is sampled by periodical power failure, by artificial
The pollution degree of periodic measurement insulator surface, such method method need line outage, and when working at height field sampling work
Make danger level height, and height is required to the working experience of operating personnel, is otherwise easy to get the larger data of error.Therefore lead to this
Kind method measurement insulator dirty degree is cumbersome, time-consuming, efficiency is low, and coverage is big.
Also there is fractional unit to use the suspension sampling insulator chain sample on shaft tower at present, and periodically sampling carries out pollution degree
Measurement, but sample insulator do not charge, can not real simulation insulator actual operating mode.
In conclusion in the prior art when carrying out operation transmission circuit insulator string pollution degree test, cumbersome, consumption
Duration, efficiency are low, and coverage is big, influence the safe operation of electric system.
Invention content
This application provides a kind of suspension insulator pollution degrees to monitor system and method, dirty to solve existing detection insulator
It is dirty when spending it is cumbersome, time-consuming, efficiency is low, the big problem of coverage.
In a first aspect, this application provides a kind of suspension insulator pollution degrees to monitor system, which includes：Taking can divide
Device, noninductive resistance, leakage current monitoring modular, humidity collection module, processor, sampling suspension insulator；
Described that energy divider one end is taken to be connect with the transmission pressure in electric system, the cross-arm of the other end and electric force pole tower connects
It connects；
First output end for taking energy divider is connect with the sampling suspension insulator by disconnecting switch；
It is described take can divider second output terminal respectively with the leakage current monitoring modular and the humidity collection mould
Block connects, for giving the leakage current monitoring modular and the humidity collection module for power supply respectively；
Described sampling suspension insulator one end is connect with first output end, and the other end is connect with the noninductive resistance；
Described noninductive resistance one end is connect with the sampling suspension insulator, and the other end is connect with the cross-arm；
The humidity collection module is connect with the leakage current monitoring modular, and collected humidity data is transferred to institute
State leakage current monitoring modular；
The leakage current monitoring modular includes sequentially connected voltage acquisition unit, converting unit, communication unit；It is described
Voltage acquisition unit acquires the voltage signal at the noninductive resistance both ends；The voltage signal is converted into letting out by the converting unit
Leakage current signal；The leakage current signal and the humidity data are transferred to the processor by the communication unit；
The processor is used for the leakage current signal, air humidity data and the pollution degree judgement song pre-established
Line is compared, and obtains sampling suspension insulator pollution degree；The processor is additionally operable to judge that the sampling suspension insulator is dirty
Whether dirty degree, if be less than, does not alarm more than preset pollution degree alarming value if it does, then alarming.
Preferably, it is described take can divider include the first capacitance, the second capacitance, third capacitance being sequentially connected in series；
Connection line connection between one end of first output end and first capacitance and second capacitance；Institute
State second output terminal one end and second capacitance described in connection line between third capacitance connect.
Preferably, the voltage of first output end is calculated according to following formula,
Wherein, U is the voltage of first output end, and Urph is the specified phase voltage of transmission line of electricity, and n is that the sampling is outstanding
Formula insulator dirty degree monitors the insulator the piece number of the suspension insulator string at system mounting location.
Preferably, first capacitance, the second capacitance, third capacitance value meet following formula,
C2C3=n × (C1C2+C1C3+C2C3)
Wherein, C1 is the value of first capacitance, and C2 is the value of first capacitance, and C3 is the value of first capacitance.
Preferably, the noninductive resistance is connect with the leakage current monitoring modular using shielded cable.
Preferably, the value range of noninductive resistance is 10-100k Ω.
Preferably, the voltage value range of the second output terminal is 198-242V.
Second aspect, this application provides a kind of suspension insulator pollution degree monitoring methods, and it is dirty to be applied to suspension insulator
Dirty degree monitoring system, the sampling suspension insulator pollution degree monitoring system include：Taking can divider, noninductive resistance, leakage electricity
Flow monitoring modular, humidity collection module, processor, sampling suspension insulator；
Described that energy divider one end is taken to be connect with the transmission pressure in electric system, the cross-arm of the other end and electric force pole tower connects
It connects；
First output end for taking energy divider is connect with the sampling suspension insulator by disconnecting switch；
It is described take can divider second output terminal respectively with the leakage current monitoring modular and the humidity collection mould
Block connects, for giving the leakage current monitoring modular and the humidity collection module for power supply respectively；
Described sampling suspension insulator one end is connect with first output end, and the other end is connect with the noninductive resistance；
Described noninductive resistance one end is connect with the sampling suspension insulator, and the other end is connect with the cross-arm；
The humidity collection module is connect with the leakage current monitoring modular, and collected humidity data is transferred to institute
State leakage current monitoring modular；
The leakage current monitoring modular includes sequentially connected voltage acquisition unit, converting unit, communication unit；It is described
Voltage acquisition unit acquires the voltage signal at the noninductive resistance both ends；The voltage signal is converted into letting out by the converting unit
Leakage current signal；The leakage current signal and the humidity data are transferred to the processor by the communication unit；
The processor is used for the leakage current signal, air humidity data and the pollution degree judgement song pre-established
Line is compared, and obtains sampling suspension insulator pollution degree；The processor is additionally operable to judge that the sampling suspension insulator is dirty
Whether dirty degree, if be less than, does not alarm more than preset pollution degree alarming value if it does, then alarming；
The method includes：
Acquisition air humidity data are simultaneously transferred to the leakage current monitoring modular；
The voltage signal at noninductive resistance both ends is acquired, and the voltage signal at the noninductive resistance both ends is converted into leakage electricity
Flow signal；
The leakage current signal, air humidity data are compared with the pollution degree judgment curves pre-established, are obtained
To sampling suspension insulator pollution degree.
Preferably, the method further includes：The historical data for obtaining sampling suspension insulator, established by processor described in
Sample suspension insulator pollution degree judgment curves.
Preferably, the method further includes：Judge whether the sampling suspension insulator pollution degree is more than preset filth
Degree alarming value, if be less than, is not alarmed if it does, then alarming.
It is described by above technical scheme it is found that in suspension insulator pollution degree provided by the present application monitoring system and method
Take can the first output end of divider connect by disconnecting switch with the sampling suspension insulator, it is described to take the of energy divider
Two output ends are connect with the leakage current monitoring modular and the humidity collection module respectively, and the noninductive resistance takes with described
Sample suspension insulator connects, and the humidity collection module is connect with the leakage current monitoring modular.The processor will be described
Leakage current signal and humidity data are compared with the pollution degree judgment curves pre-established, obtain sampling suspension insulator
Pollution degree；Then the pollution degree of suspension insulator will be sampled compared with preset pollution degree alarming value, if sampling suspension insulator
The pollution degree of son is then alarmed more than the preset pollution degree alarming value, on the contrary then do not alarm.Sample suspension insulator surface
Pollution degree is approximately equal to the pollution degree of installation place suspension insulator string, it is achieved that the filth to sampling suspension insulator surface
The real-time monitoring and alarm of degree can reduce artificial participation, easy to operate, time-consuming short, efficient, and be live monitorings,
Reduce the influence brought by power failure.
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 suspension insulator pollution degree provided by the invention monitors system；
Fig. 2 is that provided by the invention take can divider scheme of installation；
Fig. 3 is disconnecting switch scheme of installation provided by the invention；
Fig. 4 is the scheme of installation of noninductive resistance provided by the invention and sampling suspension insulator；
Fig. 5 is the flow diagram for the suspension insulator pollution degree monitoring method that invention provides.
It illustrates：
Wherein, 1- shaft towers；2- transmission pressures；3- cross-arms；The first capacitors of 4-；The second capacitors of 5-；6- third capacitors；
7- disconnecting switch；8- samples suspension insulator；9- noninductive resistances；10- leakage current monitoring modulars；11- processors；12- humidity
Instrument；21- load insulating bars；22- insulating cylinders；23- connection conductor plates；24- disconnecting switch moving contacts；25- static contact isolation switches；
26- isolation switch insulation operating levers.
Specific implementation mode
With reference to the attached drawing in the application, technical solutions in the embodiments of the present application is clearly and completely described,
Obviously, described embodiment is only a part of the embodiment of the application, instead of all the embodiments.Based in the application
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts,
It shall fall within the protection scope of the present invention.
Many details are elaborated in the following description in order to fully understand the application, but the application can be with
It is different from the other modes that describe again using other to implement, those skilled in the art can be without prejudice to the application intension
In the case of do similar popularization, therefore the application is not limited by following public specific embodiment.
In a first aspect, referring to Fig. 1, the structural schematic diagram of system is monitored for suspension insulator pollution degree provided by the invention.
Suspension insulator pollution degree monitoring system provided by the present application includes taking energy divider, noninductive resistance 9, leakage current monitoring modular
10, humidity collection module 12, processor 11, sampling suspension insulator 8；
It is described that energy divider one end is taken to be connect with the transmission pressure 2 in electric system, the cross-arm of the other end and electric force pole tower 1
3 connections；
First output end for taking energy divider is connect with the sampling suspension insulator 8 by disconnecting switch 7；
It is described take can divider second output terminal respectively with the leakage current monitoring modular 10 and the humidity collection
Module 12 connects, for giving the leakage current monitoring modular 10 and the humidity collection module 12 to power respectively；
Described 8 one end of sampling suspension insulator is connect with first output end, and the other end connects with the noninductive resistance 9
It connects；
9 one end of the noninductive resistance is connect with the sampling suspension insulator 8, and the other end is connect with the cross-arm 3；
The humidity collection module 12 is connect with the leakage current monitoring modular 10, and collected humidity data is transmitted
To the leakage current monitoring modular 10；
The leakage current monitoring modular 10 includes sequentially connected voltage acquisition unit, converting unit, communication unit；Institute
State the voltage signal that voltage acquisition unit acquires 9 both ends of the noninductive resistance；The converting unit converts the voltage signal
At leakage current signal；The leakage current signal and the humidity data are transferred to the processor by the communication unit
11；
The processor 11 is used for the leakage current signal, air humidity data and the pollution degree judgement pre-established
Curve is compared, and obtains the pollution degree of sampling suspension insulator 8；The processor 11 is additionally operable to judge that the sampling suspension type is exhausted
Whether edge pollution degree, if be less than, does not alarm more than preset pollution degree alarming value if it does, then alarming.
It, can divider scheme of installation for provided by the invention take referring to Fig. 2.Provided in an embodiment of the present invention take can divide
Device includes the first capacitance 4, the second capacitance 5, third capacitance 6, load insulating bar 21, insulating cylinder 22, connection conductor plate 23.First electricity
The 4, second capacitance 5 of appearance, third capacitance 6 are packaged in insulating cylinder 22, and upper and lower ends are drawn by connection conductor plate 23, and pass through connection
Conductor plate 23 is parallel to the both ends of load insulating bar 21, and the upper end of load insulating bar 21 is by connecting conductor plate 23 and shaft tower 1
Cross-arm 3 is connected, and lower end is connected by connecting conductor plate 23 with the upper end of the first capacitance 4.
It is shown in Figure 3, it is 7 basic structure schematic diagram of disconnecting switch provided by the invention.Including load insulating bar 21, every
From switch movable contact 24, static contact isolation switch 25, isolation switch insulation operating lever 26.7 integral hanging of disconnecting switch is in shaft tower 1
The lower section of cross-arm 3, when work, which can stand on cross-arm 3, to be operated on it.Under normal circumstances, disconnecting switch 7, which is in, is closed
State opens disconnecting switch 7 when needing to carry out manual sampling on the insulator or replace insulator, and high potential is isolated.
Referring to Fig. 4, for the scheme of installation of noninductive resistance 9 provided by the invention and sampling suspension insulator 8.Including sampling
Suspension insulator 8, noninductive resistance 9 and load insulating bar 21, connection conductor plate 23, noninductive resistance 9 is by connecting conductor plate 23 simultaneously
It is coupled to the both ends of load insulating bar 21, the upper end of load insulating bar 21 is connected by connecting conductor plate 23 with the cross-arm 3 of shaft tower 1,
Lower end is connected by connecting conductor plate 23 with the upper end for sampling suspension insulator 8.
By above technical scheme it is found that suspension insulator pollution degree provided by the present application monitors system, described take can divide
First output end of device is connect with the sampling suspension insulator 8 by disconnecting switch 7, second output for taking energy divider
End is connect with the leakage current monitoring modular 10 and the humidity collection module 12 respectively, and the noninductive resistance 9 takes with described
Sample suspension insulator 8 connects, and the humidity collection module 12 is connect with the leakage current monitoring modular 10.The processor 11
The leakage current signal and air humidity data are compared with the pollution degree judgment curves pre-established, it is outstanding to obtain sampling
The pollution degree of formula insulator 8；Then by the pollution degree of sampling suspension insulator 8 compared with preset pollution degree alarming value, if
The pollution degree of sampling suspension insulator 8 is then alarmed more than the preset pollution degree alarming value, on the contrary then do not alarm.Sample suspension type
The pollution degree of insulator surface is approximately equal to the pollution degree of installation place suspension insulator string.
By taking energy from electric force pole tower 1, insulator both ends are then applied to, and give leakage current monitoring modular 10 and temperature
Acquisition module 12 is spent to power.The voltage on noninductive resistance 9 is acquired using leakage current monitoring modular 10, is then converted into leakage electricity
Signal is flowed, and processor 11 is sent to by wireless network；Processor 11 receives the transmission of leakage current monitoring modular 10 simultaneously
The leakage current signal and air humidity data to come over, is compared with the pollution degree judgment curves pre-established, is sampled
The pollution degree of suspension insulator 8.
Suspension insulator pollution degree monitoring system provided by the present application realizes the filth to 8 surface of sampling suspension insulator
Degree monitor and alarm in real time, and the pollution degree on 8 surface of sampling suspension insulator is approximately equal to installation place suspension insulator string
Pollution degree, can reduce artificial participation, it is easy to operate, take short, efficient, and be live monitoring, reduce because of power failure band
The influence come.
Optionally, it is described take can divider include the first capacitance 4, the second capacitance 5, third capacitance 6 being sequentially connected in series；
Connection line connection between one end of first output end and first capacitance 4 and second capacitance 5；
Connection line connection between third capacitance 6 described in one end of the second output terminal and second capacitance 5.
Optionally, the voltage of first output end is calculated according to following formula,
Wherein, U is the voltage of first output end, and Urph is the specified phase voltage of transmission line of electricity, and n is that the sampling is outstanding
Formula insulator dirty degree monitors the insulator the piece number of the suspension insulator string at system mounting location.
Optionally, first capacitance 4, the second capacitance 5, third capacitance 6 value meet following formula,
C2C3=n × (C1C2+C1C3+C2C3)
Wherein, C1 is the value of first capacitance 4, and C2 is the value of first capacitance 4, and C3 is first capacitance 4
Value.
Optionally, the noninductive resistance 9 is connect with the leakage current monitoring modular 10 using shielded cable.Use nothing
Sensing resistor 9 can solve under strong electromagnetic, and the voltage at resistance both ends can not survey accurate problem, while use shielded cable
Noninductive resistance 9 and the leakage current monitoring modular 10 are connected, electromagnetic interference of the voltage signal in transmission process can be reduced.
Optionally, the value range of noninductive resistance 9 is 10-100k Ω.
Optionally, the voltage value range of the second output terminal is 198-242V.
Second aspect, it is shown in Figure 5, to invent the flow signal of the suspension insulator pollution degree monitoring method provided
Figure.This application provides a kind of suspension insulator pollution degree monitoring methods, are applied to sampling suspension insulator pollution degree monitoring system
System, the sampling suspension insulator pollution degree monitoring system include：Taking can divider, noninductive resistance 9, leakage current monitoring modular
10, humidity collection module 12, processor 11, sampling suspension insulator 8；
It is described that energy divider one end is taken to be connect with the transmission pressure 2 in electric system, the cross-arm of the other end and electric force pole tower 1
3 connections；
First output end for taking energy divider is connect with the sampling suspension insulator 8 by disconnecting switch 7；
It is described take can divider second output terminal respectively with the leakage current monitoring modular 10 and the humidity collection
Module 12 connects, for giving the leakage current monitoring modular 10 and the humidity collection module 12 to power respectively；
Described 8 one end of sampling suspension insulator is connect with first output end, and the other end connects with the noninductive resistance 9
It connects；
9 one end of the noninductive resistance is connect with the sampling suspension insulator 8, and the other end is connect with the cross-arm 3；
The humidity collection module 12 is connect with the leakage current monitoring modular 10, and collected humidity data is transmitted
To the leakage current monitoring modular 10；
The leakage current monitoring modular 10 includes sequentially connected voltage acquisition unit, converting unit, communication unit；Institute
State the voltage signal that voltage acquisition unit acquires 9 both ends of the noninductive resistance；The converting unit converts the voltage signal
At leakage current signal；The leakage current signal and the humidity data are transferred to the processor by the communication unit
11；
The processor 11 is used for the leakage current signal, air humidity data and the pollution degree judgement pre-established
Curve is compared, and obtains sampling 8 pollution degree of suspension insulator；The processor 11 is additionally operable to judge the field sampling suspension type
Whether insulator dirty degree, if be less than, does not alarm more than preset pollution degree alarming value if it does, then alarming；
The method includes：
Step S1, the historical data for obtaining sampling suspension insulator, the sampling suspension insulator is established by processor
Pollution degree judgment curves；
Step S2, air humidity data are acquired and are transferred to the leakage current monitoring modular；
Step S3, the voltage signal at acquisition noninductive resistance both ends, and the voltage signal at the noninductive resistance both ends is converted
At leakage current signal；
Step S4, by the leakage current signal, air humidity data and the pollution degree judgment curves progress pre-established
Compare, obtains sampling suspension insulator pollution degree.
Step S5, judge whether the sampling suspension insulator pollution degree is more than preset pollution degree alarming value, if super
It crosses, then alarms, if be less than, do not alarm.
It is described to take by above technical scheme it is found that suspension insulator pollution degree provided by the present application monitors system and method
Can the first output end of divider connect by disconnecting switch 7 with the sampling suspension insulator 8, it is described to take the of energy divider
Two output ends are connect with the leakage current monitoring modular 10 and the humidity collection module 12 respectively, the noninductive resistance 9 with
The sampling suspension insulator 8 connects, and the humidity collection module 12 is connect with the leakage current monitoring modular 10.The place
The leakage current signal and humidity data are compared by reason device 11 with the pollution degree judgment curves pre-established, are sampled
The pollution degree of suspension insulator 8；Then by the pollution degree of sampling suspension insulator 8 compared with preset pollution degree alarming value, such as
The pollution degree of fruit sampling suspension insulator 8 is then alarmed more than the preset pollution degree alarming value, on the contrary then do not alarm, described to take
The pollution degree on 8 surface of sample suspension insulator is the pollution degree of installation place suspension insulator string.
By taken from electric force pole tower 1 can, be then applied to insulator both ends, and to leakage current monitoring modular 10 and wet
Acquisition module 12 is spent to power.The voltage on noninductive resistance 9 is acquired using leakage current monitoring modular 10, is then converted into leakage electricity
Signal is flowed, and processor 11 is sent to by wireless network；Processor 11 receives the transmission of leakage current monitoring modular 10 simultaneously
The leakage current signal and air humidity data to come over, is compared with the pollution degree judgment curves pre-established, is sampled
The pollution degree of suspension insulator 8.
Suspension insulator pollution degree monitoring system provided by the present application realizes the filth to 8 surface of sampling suspension insulator
Degree monitor and alarm in real time, can reduce artificial participation, easy to operate, time-consuming short, efficient, and is electrification prison
It surveys, reduces the influence brought by power failure.
It the above is only the specific implementation mode of the application, it is noted that those skilled in the art are come
It says, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as
The protection domain of the application.
Claims (10)
1. a kind of suspension insulator pollution degree monitors system, which is characterized in that including：Taking can divider, noninductive resistance, leakage electricity
Flow monitoring modular, humidity collection module, processor, sampling suspension insulator；
It is described that energy divider one end is taken to be connect with the transmission pressure in electric system, the cross-arm connection of the other end and electric force pole tower；
First output end for taking energy divider is connect with the sampling suspension insulator by disconnecting switch；
The second output terminal for taking energy divider connects with the leakage current monitoring modular and the humidity collection module respectively
It connects, for giving the leakage current monitoring modular and the humidity collection module for power supply respectively；
Described sampling suspension insulator one end is connect with first output end, and the other end is connect with the noninductive resistance；
Described noninductive resistance one end is connect with the sampling suspension insulator, and the other end is connect with the cross-arm；
The humidity collection module is connect with the leakage current monitoring modular, and collected humidity data is transferred to described let out
Leakage current monitoring module；
The leakage current monitoring modular includes sequentially connected voltage acquisition unit, converting unit, communication unit；The voltage
Collecting unit acquires the voltage signal at the noninductive resistance both ends；The voltage signal is converted into leakage electricity by the converting unit
Flow signal；The leakage current signal and the humidity data are transferred to the processor by the communication unit；
The processor be used for by the leakage current signal, air humidity data and the pollution degree judgment curves that pre-establish into
Row compares, and obtains sampling suspension insulator pollution degree；The processor is additionally operable to judge the sampling suspension insulator pollution degree
Whether, if be less than, do not alarmed more than preset pollution degree alarming value if it does, then alarming.
2. suspension insulator pollution degree according to claim 1 monitors system, which is characterized in that described take can divider packet
Include the first capacitance, the second capacitance, third capacitance being sequentially connected in series；
Connection line connection between one end of first output end and first capacitance and second capacitance；Described
Connection line connection between third capacitance described in one end of two output ends and second capacitance.
3. suspension insulator pollution degree according to claim 2 monitors system, which is characterized in that first output end
Voltage is calculated according to following formula,
Wherein, U is the voltage of first output end, and Urph is the specified phase voltage of transmission line of electricity, and n is the suspension insulator
Pollution degree monitors the insulator the piece number of the suspension insulator string at system mounting location.
4. suspension insulator pollution degree according to claim 3 monitors system, which is characterized in that first capacitance, the
Two capacitances, third capacitance value meet following formula,
C2C3=n × (C1C2+C1C3+C2C3)
Wherein, C1 is the value of first capacitance, and C2 is the value of first capacitance, and C3 is the value of first capacitance.
5. suspension insulator pollution degree according to claim 1 monitors system, which is characterized in that the noninductive resistance and institute
Leakage current monitoring modular is stated to connect using shielded cable.
6. suspension insulator pollution degree according to claim 1 monitors system, which is characterized in that the noninductive resistance takes
It is worth ranging from 10-100k Ω.
7. suspension insulator pollution degree according to claim 1 monitors system, which is characterized in that the second output terminal
Voltage value range is 198-242V.
8. a kind of suspension insulator pollution degree monitoring method is applied to suspension insulator pollution degree and monitors system, which is characterized in that
The suspension insulator pollution degree monitors system：Energy divider, noninductive resistance, leakage current monitoring modular, humidity is taken to adopt
Collect module, processor, sampling suspension insulator；
It is described that energy divider one end is taken to be connect with the transmission pressure in electric system, the cross-arm connection of the other end and electric force pole tower；
First output end for taking energy divider is connect with the sampling suspension insulator by disconnecting switch；
The second output terminal for taking energy divider connects with the leakage current monitoring modular and the humidity collection module respectively
It connects, for giving the leakage current monitoring modular and the humidity collection module for power supply respectively；
Described sampling suspension insulator one end is connect with first output end, and the other end is connect with the noninductive resistance；
Described noninductive resistance one end is connect with the sampling suspension insulator, and the other end is connect with the cross-arm；
The humidity collection module is connect with the leakage current monitoring modular, and collected humidity data is transferred to described let out
Leakage current monitoring module；
The leakage current monitoring modular includes sequentially connected voltage acquisition unit, converting unit, communication unit；The voltage
Collecting unit acquires the voltage signal at the noninductive resistance both ends；The voltage signal is converted into leakage electricity by the converting unit
Flow signal；The leakage current signal and the humidity data are transferred to the processor by the communication unit；
The processor be used for by the leakage current signal, air humidity data and the pollution degree judgment curves that pre-establish into
Row compares, and obtains sampling suspension insulator pollution degree；The processor is additionally operable to judge the sampling suspension insulator pollution degree
Whether, if be less than, do not alarmed more than preset pollution degree alarming value if it does, then alarming；
The method includes：
Acquisition air humidity data are simultaneously transferred to the leakage current monitoring modular；
The voltage signal at noninductive resistance both ends is acquired, and the voltage signal at the noninductive resistance both ends is converted into leakage current letter
Number；
The leakage current signal, air humidity data are compared with the pollution degree judgment curves pre-established, are taken
Sample suspension insulator pollution degree.
9. suspension insulator pollution degree monitoring method according to claim 8, which is characterized in that the method further includes：
The historical data for obtaining sampling suspension insulator, the sampling suspension insulator pollution degree judgment curves are established by processor.
10. suspension insulator pollution degree monitoring method according to claim 8, which is characterized in that the method further includes：
Judge whether the sampling suspension insulator pollution degree is more than preset pollution degree alarming value, if it does, then alarming, if not
It is more than not alarm then.
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| CN109696596A (en) * | 2019-01-28 | 2019-04-30 | 西安工程大学 | A kind of wet dirty remote supervision system of insulator |
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| CN112179953A (en) * | 2020-09-26 | 2021-01-05 | 国网山东省电力公司电力科学研究院 | Multi-mode online monitoring device and method for insulator dirt accumulation amount |
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| CN112834885A (en) * | 2021-01-07 | 2021-05-25 | 国家电网有限公司 | Power supply line insulation state assessment based on power supply line leakage current and humidity relation identification |
| CN113083791A (en) * | 2019-12-23 | 2021-07-09 | 中车大连电力牵引研发中心有限公司 | Insulator cleaning device and cleaning method |
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