CN105974305A - Online monitoring system for mechanical characteristic of circuit breaker - Google Patents
Online monitoring system for mechanical characteristic of circuit breaker Download PDFInfo
- Publication number
- CN105974305A CN105974305A CN201610412586.1A CN201610412586A CN105974305A CN 105974305 A CN105974305 A CN 105974305A CN 201610412586 A CN201610412586 A CN 201610412586A CN 105974305 A CN105974305 A CN 105974305A
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- Prior art keywords
- module
- monitoring system
- line monitoring
- breaker
- mechanic property
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Classifications
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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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Breakers (AREA)
Abstract
The invention relates to an online monitoring system for mechanical characteristic of a circuit breaker. The online monitoring system comprises a CPU module, a displacement sensor which is used for acquiring a contact stroke, a pressure sensor which is used for acquiring contact pressure, and a current sensor which is used for acquiring coil current. The CPU module is connected with the displacement sensor, the pressure sensor and the current sensor for sampling. The online monitoring system further comprises at least one wireless temperature measuring module which is mounted on at least one preset position on the contact. The wireless temperature measuring module is in wireless communication connection with one temperature receiving module. The CPU module is connected with the temperature receiving module. Because measurement for contact temperature is added, more parameters for testing are realized. Easier false discarding and true retaining is realized in comparison with other parameters. Interactive confirmation is realized, and testing for mechanical performance of the circuit breaker is further improved.
Description
Technical field
The present invention relates to a kind of breaker mechanic property on-line monitoring system, it is simple to more preferably safeguard indoor HVAC vacuum
Chopper runs.
Background technology
Vacuum circuit breaker is little with its volume, life-span length, arc extinction performance are good, be suitable to frequent operation, maintenance workload is little, safety
Property advantages of higher, is widely used in medium voltage distribution network.Along with increasing sharply of usage amount, relevant maintenance amount and taking
With increasing the most year by year, and overwhelming majority maintenance cost consumption is in chopper periodic inspection.Frequent operation with excessively overhaul dismounting
Can reduce breaker actuation reliability, therefore, it is imperative for reducing overhaul of line breaker number of times as far as possible.Circuit-breaker status is entered
Row real time on-line monitoring, can understand working state of circuit breaker, rejected region etc. in time, reduce too early or unnecessary maintenance,
Thus reduce maintenance and cost of overhaul use.Make scientific and reasonable repair schedule according to the change of online monitoring data, finally improve
The reliability of electric power system and economy.
Currently for the measurement of breaker mechanic property, it is mostly and utilizes mechanical property when producer's delivery test
Tester is carried out.Although ensure that breaker mechanic property parameter is in the reasonable scope when dispatching from the factory, but throw chopper is actual
Entering after running, along with continuous mechanically actuated, its performance data can change, but user is difficult to grasp in real time its characteristic
Data situation.Can only measure by periodically or non-periodically overhauling, on the one hand waste substantial amounts of human and material resources and
Financial resources, on the other hand, frequent maintenance can reduce operation of power networks efficiency.Therefore, chopper on-line monitoring technique is carried out research with
Application, it appears the most necessary.
For monitoring breaker mechanical property, technology in early days judges to break typically by detection coil current indirectly
Road device mechanical performance.This scheme reliability is poor.
Notification number is the testing mechanical characteristic that the Chinese patent application of CN203518937U discloses a kind of primary cut-out
Instrument.Including linear displacement transducer, angular displacement sensor, Hall current sensor, dsp processor etc..Linear displacement transducer,
Angular displacement sensor, Hall current sensor detection data circuit after filtering and A/D convertor circuit send into dsp processor, DSP
Processor connects three-phase port switching value unit also by photoelectrical coupler and coil triggers signal, and dsp processor also connects
It is connected to LCD display, keyboard and the equipment such as USB flash disk, printer.
Such scheme is special to breaker mechanical by many kinds of parameters such as detection contact stroke, coil current, on-off model
Property carry out comprehensive descision, owing to also introducing contact travel parameter, it is possible to by the different data of comparison from different perspectives to touching
Head action is studied, and compares the scheme only measuring electric current in early days, and testing reliability is higher, it is possible to relatively accurately obtain disconnected
The mechanical property of road device.
Owing to primary cut-out is the fairly expensive equipment of a kind of cost, and significant to power system security,
Only rely on above-mentioned parameter and be still not able to comprehensively investigate breaker mechanic property.Such as, Application No. 201320825165.3
The scheme that discloses of Chinese patent application, also apply pressure transducer to measure contact pressure, more comprehensive to obtaining
Monitoring result.
In order to improve the monitoring of mechanical property further, this area also needs to more perfect scheme.
Summary of the invention
It is an object of the invention to provide a kind of breaker mechanic property monitoring system, in order to solve the monitoring system of prior art
Unite the most perfect problem.
For achieving the above object, the solution of the present invention includes:
A kind of breaker mechanic property on-line monitoring system, including CPU module, for gathering the displacement transducer of contact travel,
For gathering the pressure transducer of contact pressure and for the current sensor of gathering line loop current, the sampling of described CPU module is even
Connect institute's displacement sensors, pressure transducer and current sensor；Also include for being arranged on contact at least one setting position
At least one wireless temperature measure module put, wireless temperature measure module and temperature reception module wireless telecommunications connect, described CPU mould
Block connects described temperature reception module.
Further, described CPU module is also associated with wireless communication module and/or serial communication module, for upper
Machine carries out communication.
Further, described serial communication module is 485 communication modules.
Further, described CPU module is connected with described temperature reception module by RS232 universal serial bus.
Further, described current sensor is the Hall sealing in sub-gate circuit, closing circuit and tank circuit respectively
Current sensor.
Further, described CPU module is also sampled and is connected to connect the switching value unit of auxiliary contacts of circuit breaker.
Further, institute's displacement sensors, pressure transducer, current sensor and switching value unit pass through signal condition
Module connects described CPU module.
Further, described CPU module is also associated with exporting memory module.
Displacement transducer, is used for gathering moving contact stroke delta data during circuit-breaker switching on-off, and its slide block passes through ten thousand
It is connected with moving contact to joint, can accurately reflect moving contact change in displacement during divide-shut brake；Pressure transducer, for collection deciliter
Insulated tension pole pressure changing during lock, as judging firm point, the foundation of firm chalaza；Wireless temperature measure module, in real time
The temperature variations of the upper and lower contact of monitoring breaker, and wirelessly temperature data is mail to temperature reception module；Temperature
Receiver module, each temperature data sent for real-time reception wireless temperature measure module；CPU module, to through signal condition mould
Each sensor die analog quantity that block processes is acquired and processes.Owing to adding the measurement to contact temperature, detection is made to be depended on
According to parameter more diversification, with the comparison of other parameters in be easier to eliminate the false and retain the true, confirm alternately, improve open circuit further
The detection of device mechanical performance.
485 communication modules, carry out 485 communications with host computer；Wireless communication module, wirelessly leads to host computer
Letter.
Switching value unit, is used for gathering chopper and divides, closes position and energy storage state；Hall current sensor, is used for gathering
Point, closing coil and energy storage motor coil current data；Signal-regulated kinase, for the analog quantity to each sensor acquisition
Carry out nursing one's health, filtering etc. processes so that it is meet the A/D conversion range of CPU module.
The sensing data of each action is preserved by CPU module, and shows the relevant of each action on a display screen
Stroke curve, pressure curve, current curve and through characterisitic parameters such as calculated stroke, the excess of stroke, divide-shut brake speed.
CPU module reads temperature data from temperature reception module in the way of 232 communications, and shows each temperature at liquid crystal display screen
Degree.When receiving the data calling order that host computer sends, communicate with 485 or communication is by storage in memory module
Action data is sent to host computer；Human-machine interface unit, provides the operation interfaces such as display screen, button, display lamp for device；Data
Memory module, for preserving the sensing data of each action；Power module, provides required power supply for whole system.
Accompanying drawing explanation
Fig. 1 is the breaker mechanic property on-line monitoring system composition schematic diagram of embodiment；1, displacement transducer (A, B, C
Three-phase) 2, pressure transducer (A, B, C three-phase) 3, switching value unit 4, Hall current sensor (switching winding, closing line
Circle, energy storage motor coil) 5, wireless temperature measure module 6, Signal-regulated kinase 7, temperature reception module 8, CPU module 9, people
Machine interface unit 10, data memory module 11,485 communication module 12, wireless communication module 13, power module.
Detailed description of the invention
The present invention will be further described in detail below in conjunction with the accompanying drawings.
Such as a kind of breaker mechanic property on-line monitoring system of Fig. 1, including displacement transducer 1, pressure transducer 2, open
Pass amount unit 3, Hall current sensor 4, wireless temperature measure module 5, Signal-regulated kinase 6, temperature reception module 7, CPU module 8,
Human-machine interface unit 9, data memory module 10,485 communication module 11, wireless communication module 12 and power module 13.
The concrete principle that native system is operated is as follows: be separately mounted to bottom circuit breaker frame by displacement transducer 1, logical
Cross universal joint to be connected with moving contact of breaker bottom.Be connected pressure transducer 2 upper end fixing respectively with insulated tension pole, lower end leads to
Crossing pin phase every with chopper connecting lever and be connected fixing, pressure transducer, again can be intactly both as a part for breaker mechanism
The change of power in reflection circuit-breaker switching on-off course of action.The external auxiliary contacts of circuit breaker of switching value unit 3, can accurately reflect disconnected
Road device current state.Hall current sensor 4 seals in sub-gate circuit, closing circuit and tank circuit respectively, grasps divide-shut brake
Transient current when making quickly responds, and exports relevant voltage signal.It is upper and lower that wireless temperature measure module 5 is separately mounted to chopper
Contact relevant position, to measure relevant temperature.
Displacement transducer, is used for gathering moving contact stroke delta data during circuit-breaker switching on-off, and its slide block passes through ten thousand
It is connected with moving contact to joint, can accurately reflect moving contact change in displacement during divide-shut brake；Pressure transducer, for collection deciliter
Insulated tension pole pressure changing during lock, as judging firm point, the foundation of firm chalaza；Wireless temperature measure module, in real time
The temperature variations of the upper and lower contact of monitoring breaker, and wirelessly temperature data is mail to temperature reception module；Temperature
Receiver module, each temperature data sent for real-time reception wireless temperature measure module；CPU module, to through signal condition mould
Each sensor die analog quantity that block processes is acquired and processes.The quantity of wireless temperature measure module can be one or more, institute
The position disposed can also be adjusted in breaker chamber.
Run when big electric current, high voltage and high load capacity for a long time due to chopper, contact meeting in course of action
Produce heat.Therefore, also be able to obtain about the information of contact action by monitoring contact temperature, these information can with pass through
The information that displacement transducer, pressure transducer etc. obtain compares checking, improves the inspection to breaker mechanical performance further
Survey.Further, since heat dispersion impact, cause contact temperature the most overheated, affect service life, even produce short circuit, cause
The accidents such as blast, fire.Add the monitoring to contact temperature, the operation situation of power system can be grasped in real time, find in time
Extremely and safeguard in advance, it is to avoid accident occurs.
As other embodiments, during parameter required for selected detection breaker mechanic property, it is also possible to taken
House, such as, is added without switching value unit.Choose externally export time, wireless communication module, 485 communication modules can also be chosen
One of which.
Signal-regulated kinase 6 to displacement transducer 1, pressure transducer 2, Hall current sensor 4 output signal at
Reason, sends into CPU module afterwards.As other embodiments, Signal-regulated kinase 6 can also be with CPU module Integrated design.
Temperature reception module 7 receives the real time temperature data of wireless temperature measure module 5, and data is sent out with 232 communication modes
Give CPU module 8.When chopper carry out point/closing operation time, CPU module 8 is by exporting corresponding Hall current sensor 4
The judgement of signal, identifies current action type, and triggers each corresponding displacement of collecting sensor signal channel acquisition, pressure sensing
Device data are also saved to data memory module 10, three-phase displacement data is respectively adopted algorithm simultaneously and calculates corresponding row
Journey, finds firm point, firm chalaza by pressure data, accurately to calculate the parameter such as the excess of stroke, speed.Temperature is read by 232 communications
The temperature data that receiver module 7 receives, corresponding sensing data curve and mechanical property parameter, real time temperature etc. can be people
The display screen of machine interface unit 9 is intuitively checked.Memory module 10 uses massive store chip, can store up to 10000
Secondary action data, and be automatically updated covering.485 communication modules 11 and wireless communication module 12 are for carrying out with host computer
Data communication, so that the sensing data of storage in data memory module 10 is mail to host computer in real time, transfers for host computer and locates
Reason.Whole system needs peripheral 220V AC/DC power supply to power to power module 13, then gives the whole series system by power module 13
System provides power supply, to ensure the reliability service of system.
The present embodiment have in real time monitoring, locally displayed, massive store, alarm threshold value are arranged, local report to the police,
The functions such as 485 telecommunications, wireless near field communication, it is possible to well monitoring breaker running status, improve circuit breaker failure
The specific aim of maintenance, greatly reduces unnecessary interruption maintenance and periodic inspection etc., thus saves the relevant cost of overhaul and use.With existing
Having monitoring device to compare, compact of the present invention, integrated level are high, it is convenient within being installed on circuit breaker frame, and use position
Move the algorithm estimated performance data be combineding with each other with pressure data, improve computational accuracy.Have temperature-monitoring function concurrently, simultaneously can
Related data is mail to background management system with 485 communications or communication, it is simple to Centralizing inspection and management.Can exist in real time
The information such as line monitoring breaker mechanical property and contact temperature, possess massive store, parameter Threshold Crossing Alert, 485 communication with
And the function such as radio communication.It is very easy to the operation maintenance personnel maintenance to chopper, improves maintenance specific aim, reduce chopper
Maintenance cost.
It is presented above the detailed description of the invention that the present invention relates to, but the present invention is not limited to described embodiment.
Under the thinking that the present invention provides, use the mode being readily apparent that to those skilled in the art to the skill in above-described embodiment
Art means carry out converting, replace, revise, and the effect played is essentially identical with the relevant art means in the present invention, realize
Goal of the invention the most essentially identical, so formed technical scheme above-described embodiment is finely adjusted formation, this technology
Scheme still falls within protection scope of the present invention.
Claims (9)
1. a breaker mechanic property on-line monitoring system, including CPU module, for gathering the displacement sensing of contact travel
Device, is used for gathering the pressure transducer of contact pressure and the current sensor for gathering line loop current, and described CPU module is sampled
Connect institute's displacement sensors, pressure transducer and current sensor；It is characterized in that, also include for being arranged on contact up to
At least one wireless temperature measure module of a few setting position, wireless temperature measure module and temperature reception module wireless telecommunications are even
Connecing, described CPU module connects described temperature reception module.
A kind of breaker mechanic property on-line monitoring system the most according to claim 1, it is characterised in that described CPU mould
Block is also associated with wireless communication module and/or serial communication module, for carrying out communication with host computer.
A kind of breaker mechanic property on-line monitoring system the most according to claim 1, it is characterised in that described CPU mould
Block is also sampled and is connected to connect the switching value unit of auxiliary contacts of circuit breaker.
A kind of breaker mechanic property on-line monitoring system the most according to claim 2, it is characterised in that described serial is led to
News module is 485 communication modules.
A kind of breaker mechanic property on-line monitoring system the most according to claim 3, it is characterised in that described displacement passes
Sensor, pressure transducer, current sensor and switching value unit connect described CPU module by Signal-regulated kinase.
A kind of breaker mechanic property on-line monitoring system the most according to claim 1, it is characterised in that described CPU mould
Block is connected with described temperature reception module by RS232 universal serial bus.
A kind of breaker mechanic property on-line monitoring system the most according to claim 1, it is characterised in that described electric current passes
Sensor is the Hall current sensor sealing in sub-gate circuit, closing circuit and tank circuit respectively.
8. according to a kind of breaker mechanic property on-line monitoring system according to any one of claim 1-5, it is characterised in that
Described CPU module is also associated with exporting memory module.
9. according to a kind of breaker mechanic property on-line monitoring system according to any one of claim 1-5, it is characterised in that
Described CPU module is also associated with human-machine interface unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610412586.1A CN105974305A (en) | 2016-06-12 | 2016-06-12 | Online monitoring system for mechanical characteristic of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610412586.1A CN105974305A (en) | 2016-06-12 | 2016-06-12 | Online monitoring system for mechanical characteristic of circuit breaker |
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| Publication Number | Publication Date |
|---|---|
| CN105974305A true CN105974305A (en) | 2016-09-28 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610412586.1A Pending CN105974305A (en) | 2016-06-12 | 2016-06-12 | Online monitoring system for mechanical characteristic of circuit breaker |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772004A (en) * | 2016-12-01 | 2017-05-31 | 武汉市欧睿科技有限公司 | A kind of high voltage switch dynamic characteristics tester |
| CN106959637A (en) * | 2017-03-23 | 2017-07-18 | 国家电网公司 | A kind of high-tension switch gear and its mechanical property monitoring device |
| CN107450017A (en) * | 2017-08-04 | 2017-12-08 | 内蒙古电力(集团)有限责任公司包头供电局 | A kind of switchgear defect intelligent checking system |
| CN107515372A (en) * | 2017-08-21 | 2017-12-26 | 国网上海市电力公司 | A kind of switchgear defect intelligent detection and analysis system |
| CN108158566A (en) * | 2018-02-10 | 2018-06-15 | 广州百家医道健康管理股份有限公司 | A kind of medical sphygmomanometer remote collecting device |
| CN109143054A (en) * | 2018-08-27 | 2019-01-04 | 国网河南省电力公司电力科学研究院 | A kind of high-voltage circuit-breaker switching on-off imitative experimental appliance |
| CN109470463A (en) * | 2018-11-21 | 2019-03-15 | 国网陕西省电力公司咸阳供电公司 | A kind of ring network cabinet breaker mechanic property on-line monitoring system and method |
| CN115459206A (en) * | 2022-09-05 | 2022-12-09 | 国网湖北省电力有限公司宜昌供电公司 | High tension switchgear secondary circuit real-time monitoring and fault diagnosis system |
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| CN204116558U (en) * | 2014-10-17 | 2015-01-21 | 浙江开关厂有限公司 | A kind of isolating switch on-Line Monitor Device |
| CN204462331U (en) * | 2015-02-26 | 2015-07-08 | 厦门华电开关有限公司 | Vacuum breaker mechanical features on-line monitoring system |
| CN205691734U (en) * | 2016-06-12 | 2016-11-16 | 河南森源电气股份有限公司 | Breaker mechanic property on-line monitoring system |
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| JPS59180376A (en) * | 1983-03-30 | 1984-10-13 | Shikoku Electric Power Co Inc | Switching time analyzer for breaker for electric power |
| CN201477189U (en) * | 2009-04-23 | 2010-05-19 | 南京因泰莱配电自动化设备有限公司 | Device for online detecting mechanical characteristics of 24 kV high-voltage vacuum circuit breaker |
| CN201681143U (en) * | 2010-03-23 | 2010-12-22 | 西安工程大学 | Online monitoring device for mechanical characteristic of high-voltage circuit breaker |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772004A (en) * | 2016-12-01 | 2017-05-31 | 武汉市欧睿科技有限公司 | A kind of high voltage switch dynamic characteristics tester |
| CN106959637A (en) * | 2017-03-23 | 2017-07-18 | 国家电网公司 | A kind of high-tension switch gear and its mechanical property monitoring device |
| CN106959637B (en) * | 2017-03-23 | 2019-12-27 | 国家电网公司 | High-voltage switch equipment and mechanical characteristic monitoring device thereof |
| CN107450017A (en) * | 2017-08-04 | 2017-12-08 | 内蒙古电力(集团)有限责任公司包头供电局 | A kind of switchgear defect intelligent checking system |
| CN107450017B (en) * | 2017-08-04 | 2020-04-28 | 内蒙古电力(集团)有限责任公司包头供电局 | Intelligent detection system for defects of switch equipment |
| CN107515372A (en) * | 2017-08-21 | 2017-12-26 | 国网上海市电力公司 | A kind of switchgear defect intelligent detection and analysis system |
| CN108158566A (en) * | 2018-02-10 | 2018-06-15 | 广州百家医道健康管理股份有限公司 | A kind of medical sphygmomanometer remote collecting device |
| CN109143054A (en) * | 2018-08-27 | 2019-01-04 | 国网河南省电力公司电力科学研究院 | A kind of high-voltage circuit-breaker switching on-off imitative experimental appliance |
| CN109470463A (en) * | 2018-11-21 | 2019-03-15 | 国网陕西省电力公司咸阳供电公司 | A kind of ring network cabinet breaker mechanic property on-line monitoring system and method |
| CN115459206A (en) * | 2022-09-05 | 2022-12-09 | 国网湖北省电力有限公司宜昌供电公司 | High tension switchgear secondary circuit real-time monitoring and fault diagnosis system |
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Application publication date: 20160928 |
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