CN205539234U - Arrester performance monitoring system - Google Patents
Arrester performance monitoring system Download PDFInfo
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- CN205539234U CN205539234U CN201620067461.5U CN201620067461U CN205539234U CN 205539234 U CN205539234 U CN 205539234U CN 201620067461 U CN201620067461 U CN 201620067461U CN 205539234 U CN205539234 U CN 205539234U
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Abstract
The utility model relates to an arrester online monitoring technology field, concretely relates to arrester performance monitoring system. It includes current sensor, filter module, a power module, processing module, first communication module, second communication module, control module, display module, alarm module, input module, the 2nd power module, the 3rd filter module 0 and host computer. The utility model discloses can be better monitor the multinomial performance parameter of a plurality of arresters in the same region to can concentrate, carry out real -time monitoring, detection to a plurality of arresters more accurately.
Description
Technical field
This utility model relates to spark gap on-line monitoring technique field, specifically, relating to a kind of spark gap
System can be monitored.
Background technology
Spark gap is a kind of overvoltage limiter, and it is actually the absorber of overvoltage energy, it with protected
Protecting equipment parallel running, after applied voltage exceedes certain amplitude, spark gap always first action, releases a large amount of
Energy, over-voltage, protect electrical equipment.China's power system popularity application is that zinc oxide is taken shelter from the thunder
Device, although Zinc-Oxide Arrester has lot of advantages but there is also that valve block is aging, makes moist or built-in electrical insulation support
The problems such as insulating properties are bad, therefore Zinc-Oxide Arrester need to be carried out periodic detection.
The existing detection method for Zinc-Oxide Arrester mainly has two kinds: 1, periodically has a power failure at run duration and does
Insulation preventive trial, this test be various Zinc-Oxide Arrester must do project, be mainly used in judging lightning-arrest
Whether device valve block makes moist, and inner body assembling is the most qualified, should be cleaned by arrestor porcelain bushing pipe before test, uses
The insulation resistance that 2500V megger is measured should be greater than 1000M Ω；2, live detection, under alternating voltage, keeps away
Total leakage current of thunder device comprises current in resistance property (real component) and capacity current (idle component), normally
Flowing through the predominantly capacity current of spark gap under ruuning situation, current in resistance property only accounts for very small part, accounts for
5%～20%, but when resistor disc is aging, spark gap makes moist, built-in electrical insulation parts are impaired or surface pollution severity
Time, capacity current change is little, and current in resistance property is greatly increased, so live testing mainly detection leakage electricity
Stream and resistive component thereof.Wherein, run duration periodically have a power failure do insulation preventive trial also exist test electricity
The shortcomings such as force down, cycle length, equipment are heavy, it is impossible to the insulation status that true reflection equipment is actual, because of
And defect and fault cannot be found in time；Live detection also exists scene and is difficult to safely and effectively choose reference voltage,
The problems such as interphase interference and system harmonics are difficult to eliminate, test interval length, thus cannot send out timely and accurately
The hidden danger of existing spark gap, it is impossible to reply emergency case.
In sum, the monitoring system testing program of application traditional measurement method is complicated, and automatization level is low,
Poor anti jamming capability, is affected by human factors big, all can not be very in terms of accuracy, reliability and operability
The good requirement meeting power system.Therefore the development trend of home and abroad spark gap on-line monitoring technique is complied with,
Research and develop a kind of transformer substation arrester wide area life-span on-line monitoring system gesture integrating soft and hardware must
OK, thus realize full station and monitor simultaneously and forecast relatively accurate requirement, reduce the loss that has a power failure or stop transport, in advance
Survey existing potential faults to the impact of Zinc-Oxide Arrester parts and effect, eliminate Zinc-Oxide Arrester existing
The Secondary damage of failure induction.
Utility model content
Content of the present utility model is to provide a kind of spark gap performance monitoring system, and it can overcome prior art
Certain or some defect.
According to spark gap performance monitoring system of the present utility model, comprising:
Current sensor, it is for gathering the loop current of spark gap and generating loop current signals accordingly；
Filtration module, it is for being filtered shaping to loop current signals；
Processing module, it is used for processing the loop current signals after filtered shaping to obtain processing number
According to and accordingly generation process signal, process signal include the current in resistance property signal corresponding with current in resistance property；
Control module, it is for carrying out data interaction with processing module, and control module is receiving process signal
Rear corresponding generation shows signal and generates alarm signal when current in resistance property is more than setting value；
Display module, it is used for receiving display signal and processes data with display；
Alarm module, it is used for receiving alarm signal to report to the police；
Input module, it is for inputting control instruction to control module；And
Third communication module, it is for realizing the data interaction between control module and peripheral apparatus.
This utility model only needs that loop current carries out detection and preferably can be monitored spark gap performance,
Compared with prior art need not choose reference voltage, thus avoid use and the wiring of voltage transformer,
Make monitoring operation easier, enhance the on-line testing safety of power system.Relatively conventional art, passes through
This utility model can carry out high voltage, micro-electric current, low-angle accurate measurement, and this utility model has relatively
High sensitivity, accuracy and stronger capacity of resisting disturbance and the good ratio of performance to price.
It addition, can be provided with filtration module in this utility model, loop current signals can be entered by filtration module
Row processes such that it is able to preferably increase the accuracy at processing module processed data.
The process data of processing module can control module can be analyzed by this utility model, and energy
Enough data (leakage current, higher harmonic content, current in resistance property, number of lightning strokes etc.) that will process are showing in real time
Show and show, so that monitored spark gap can be understood by monitoring personnel the most intuitively at module.
Report to the police it addition, control module can also control alarm module when current in resistance property accounting is excessive, thus
Monitoring personnel can be pinpointed the problems the most in time.
It addition, the control module in this utility model can be carried out far by third communication module and peripheral apparatus
Journey data interaction, so that, this utility model is possible not only to perfect the safe operation early warning system of spark gap,
Find as early as possible and fix a breakdown, it is to avoid major accident occurs；Simultaneously, additionally it is possible to leakage current of an arrester and
Action frequency carries out adding up and realizing data remote, thus effectively monitor district's device within the domain run shape continuously
Condition, preferably reply occasionality factor and the impact of emergency situations, detect in time spark gap valve body make moist,
The internal flaws such as component ageing, stop potential faults.
As preferably, also include that first communication module and second communication module, processing module and control module are logical
Cross first communication module and second communication module carries out data interaction.
As preferably, between first communication module and second communication module, use communication.
In this utility model, processing module and control module can be communicated mould by first communication module and second
Block communicates, and first communication module and second communication module can use communication, compared to
Using the communication mode of fieldbus, this utility model can preferably avoid numerous and diverse wiring so that this reality
Various working environments is can adapt to novel.
As preferably, current sensor uses capacitive battery current transformer.
As preferably, also including the first power module, the first power module is for powering to processing module.
As preferably, also including second source module, second source module is for powering to control module.
In this utility model, the first power module and second source module can be all independent power module,
Using the loop current of spark gap to be powered in compared to existing technology, this utility model is to the detection of data more
Add accurately, and independent power module can preferably reduce detection interference.
As preferably, processing module includes algorithm unit, logical block and subtrator；Algorithm unit is used for
The loop current signals received is processed, to obtain total Leakage Current and to generate total Leakage Current accordingly
Signal；Logical block is for processing total Leakage Current signal, the most corresponding to obtain capacity current initial value
Generate capacity current initial value signal；Subtrator is at total Leakage Current signal and capacity current initial value signal
Between carry out computing, with obtain current in resistance property and accordingly generate current in resistance property signal.
As preferably, algorithm unit uses higher hamonic wave algorithm to process data.
In this utility model, processing module can include algorithm unit, logical block and subtrator, thus
Preferably loop current signals can be processed such that it is able to be more accurately obtained and include always revealing electricity
Stream, higher harmonic content, the process data of current in resistance property so that this utility model can be preferably to lightning-arrest
The multiple parameters of device is monitored.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of a kind of spark gap performance monitoring system in embodiment 1.
Detailed description of the invention
For further appreciating that content of the present utility model, in conjunction with the accompanying drawings and embodiments this utility model is made in detail
Describe.It should be appreciated that embodiment be only this utility model explained and and non-limiting.
Embodiment 1
As it is shown in figure 1, provide a kind of spark gap performance monitoring system in the present embodiment, it includes that electric current passes
Sensor, filtration module, the first power module, processing module, first communication module, second communication module,
Control module, display module, alarm module, input module, second source module, third communication module and
Host computer.
In the present embodiment, current sensor uses capacitive battery current transformer, and capacitive battery current transformer concatenates
In the discharge loop of spark gap, thus the loop current of spark gap is acquired and generates loop electricity accordingly
Stream signal；After loop current signals filtered module filtered shaping, it is sent to processing module.
Processing module includes algorithm unit, logical block and subtrator, and algorithm unit uses higher hamonic wave to calculate
Loop current signals is processed by method, thus obtains the total Leakage Current signal corresponding with total Leakage Current.
Total Leakage Current signal is simultaneously sent at logical block and subtrator, and total leakage current is believed by logical block
Number be analyzed, thus draw the phase contrast of capacity current and current in resistance property, thus obtain with capacity current at the beginning of
The capacity current initial value signal that value is corresponding.Capacity current initial value signal sends to subtrator and always reveals electricity
Stream signal carries out calculus of differences, uses usual penalty method to process afterwards, thus analyzes current in resistance property
And generate current in resistance property signal accordingly.
Process data are sent to control module by first communication module and second communication module by processing module,
Control module is corresponding after receiving process data to be generated display signal and is sent to display module, so that
Process data can be processed by display module in real time.
Input module is for inputting warning preset value to control module, so that it is excessive to work as current in resistance property accounting
Time (during more than 20%), control module produces alarm signal and is also sent to alarm module, so that report to the police
Module can be reported to the police in time.In the present embodiment, alarm module uses audible-visual annunciator.
It addition, first communication module is connected with processing module, second communication module is attached with control module,
First communication module and second communication module can use the most known communication.In the present embodiment,
Blue-tooth communication method is used between first communication module and second communication module.
First power module is for powering to processing module, and second source module is for powering to control module.
In the present embodiment, control module carries out data interaction, host computer by third communication module and host computer
Simultaneously can carry out data interaction with multiple control modules and (Fig. 1 only illustrate host computer and a control module
Between carry out communication), and any control module all can carry out communication with processing module one to one so that
Multiple spark gaps in the same area can must be monitored by same host computer.It addition, upper function
Enough control module is managed, and processing module can be managed by control module, thus preferably real
Show the long-range monitoring to spark gap performance.It addition, in the present embodiment, control module is led to host computer
Cross the Internet (Internet) and carry out communication.
Schematically being described this utility model and embodiment thereof above, this description does not has restricted,
Shown in accompanying drawing is also one of embodiment of the present utility model, and actual structure is not limited thereto.
So, if those of ordinary skill in the art is enlightened by it, creating objective without departing from this utility model
In the case of, design the frame mode similar to this technical scheme and embodiment without creative, all should belong to
In protection domain of the present utility model.
Claims (8)
1. spark gap performance monitoring system, it is characterised in that: include,
Current sensor, it is for gathering the loop current of spark gap and generating loop current signals accordingly；
Filtration module, it is for being filtered shaping to loop current signals；
Processing module, it is used for processing the loop current signals after filtered shaping to obtain processing number
According to and accordingly generation process signal, process signal include the current in resistance property signal corresponding with current in resistance property；
Control module, it is for carrying out data interaction with processing module, and control module is receiving process signal
Rear corresponding generation shows signal and generates alarm signal when current in resistance property is more than setting value；
Display module, it is used for receiving display signal and processes data with display；
Alarm module, it is used for receiving alarm signal to report to the police；
Input module, it is for inputting control instruction to control module；And
Third communication module, it is for realizing the data interaction between control module and peripheral apparatus.
Spark gap performance monitoring system the most according to claim 1, it is characterised in that: also include first
Communication module and second communication module, processing module and control module are communicated by first communication module and second
Module carries out data interaction.
Spark gap performance monitoring system the most according to claim 2, it is characterised in that: the first communication mould
Communication is used between block and second communication module.
Spark gap performance monitoring system the most according to claim 3, it is characterised in that: current sensor
Use capacitive battery current transformer.
Spark gap performance monitoring system the most according to claim 4, it is characterised in that: also include first
Power module, the first power module is for powering to processing module.
Spark gap performance monitoring system the most according to claim 5, it is characterised in that: also include second
Power module, second source module is for powering to control module.
7. according to the spark gap performance monitoring system according to any one of claim 1～6, it is characterised in that:
Processing module includes algorithm unit, logical block and subtrator；Algorithm unit is for the loop received
Current signal processes, to obtain total Leakage Current and to generate total Leakage Current signal accordingly；Logical block
For total Leakage Current signal is processed, to obtain capacity current initial value and to generate accordingly at the beginning of capacity current
Value signal；Subtrator is used for carrying out computing between total Leakage Current signal and capacity current initial value signal, with
Obtain current in resistance property and generate current in resistance property signal accordingly.
8. according to the spark gap performance monitoring system described in claim 7, it is characterised in that: algorithm unit
Use higher hamonic wave algorithm that data are processed.
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| CN201620067461.5U CN205539234U (en) | 2016-01-22 | 2016-01-22 | Arrester performance monitoring system |
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| CN201620067461.5U CN205539234U (en) | 2016-01-22 | 2016-01-22 | Arrester performance monitoring system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646058A (en) * | 2016-12-29 | 2017-05-10 | 郑州职业技术学院 | Online monitoring system for lightning arrester |
| CN106771535A (en) * | 2016-09-30 | 2017-05-31 | 南京信息工程大学 | A kind of metal oxide arrester leakage current denoising system and denoising method |
| CN108594030A (en) * | 2017-12-01 | 2018-09-28 | 国网北京市电力公司 | Arrester performance determines method and device |
| CN108761249A (en) * | 2018-07-26 | 2018-11-06 | 云南电网有限责任公司曲靖供电局 | Arrester online monitoring system |
| CN109900984A (en) * | 2019-03-01 | 2019-06-18 | 安徽天玄智能科技有限公司 | Monitoring method, system and the device of surge protector based on current in resistance property |
| CN112904230A (en) * | 2021-01-25 | 2021-06-04 | 国网河南省电力公司邓州市供电公司 | Lightning arrester fault alarm system based on big data analysis and use method thereof |
| CN114113835A (en) * | 2021-11-10 | 2022-03-01 | 西南交通大学 | Method for evaluating energy absorption performance of porcelain-sheathed lightning arrester under multiple lightning strike discharge |
-
2016
- 2016-01-22 CN CN201620067461.5U patent/CN205539234U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771535A (en) * | 2016-09-30 | 2017-05-31 | 南京信息工程大学 | A kind of metal oxide arrester leakage current denoising system and denoising method |
| CN106646058A (en) * | 2016-12-29 | 2017-05-10 | 郑州职业技术学院 | Online monitoring system for lightning arrester |
| CN108594030A (en) * | 2017-12-01 | 2018-09-28 | 国网北京市电力公司 | Arrester performance determines method and device |
| CN108761249A (en) * | 2018-07-26 | 2018-11-06 | 云南电网有限责任公司曲靖供电局 | Arrester online monitoring system |
| CN109900984A (en) * | 2019-03-01 | 2019-06-18 | 安徽天玄智能科技有限公司 | Monitoring method, system and the device of surge protector based on current in resistance property |
| CN112904230A (en) * | 2021-01-25 | 2021-06-04 | 国网河南省电力公司邓州市供电公司 | Lightning arrester fault alarm system based on big data analysis and use method thereof |
| CN114113835A (en) * | 2021-11-10 | 2022-03-01 | 西南交通大学 | Method for evaluating energy absorption performance of porcelain-sheathed lightning arrester under multiple lightning strike discharge |
| CN114113835B (en) * | 2021-11-10 | 2022-08-26 | 西南交通大学 | Method for evaluating energy absorption performance of porcelain-sheathed lightning arrester under multiple lightning strike discharge |
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