CN105974305A - Online monitoring system for mechanical characteristic of circuit breaker - Google Patents

Online monitoring system for mechanical characteristic of circuit breaker Download PDF

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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
Authority
CN
China
Prior art keywords
module
line monitoring
cpu
breaker
mechanic property
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610412586.1A
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Chinese (zh)
Inventor
潘亚培
王卓
刘洋
杨昭
范冠鹏
李金辉
张英杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan Senyuan Electric Co Ltd
Original Assignee
Henan Senyuan Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henan Senyuan Electric Co Ltd filed Critical Henan Senyuan Electric Co Ltd
Priority to CN201610412586.1A priority Critical patent/CN105974305A/en
Publication of CN105974305A publication Critical patent/CN105974305A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/327Testing of circuit interrupters, switches or circuit-breakers
    • G01R31/3271Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices

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

A kind of breaker mechanic property on-line monitoring system
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.
CN201610412586.1A 2016-06-12 2016-06-12 Online monitoring system for mechanical characteristic of circuit breaker Pending CN105974305A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
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
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

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JPS59180376A (en) * 1983-03-30 1984-10-13 Hitachi Ltd 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
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CN203522137U (en) * 2013-10-26 2014-04-02 安徽龙波电气有限公司 Intelligent electrified on-line monitoring and protection device for high-voltage vacuum circuit breaker
CN203732254U (en) * 2014-01-10 2014-07-23 常州太平洋电力设备(集团)有限公司 Circuit breaker mechanical characteristic online monitoring device
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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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59180376A (en) * 1983-03-30 1984-10-13 Hitachi Ltd 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
CN103018666A (en) * 2012-12-06 2013-04-03 常州森隆电力科技有限公司 On-line monitoring/diagnostic system and method of intelligent circuit breaker
CN203522137U (en) * 2013-10-26 2014-04-02 安徽龙波电气有限公司 Intelligent electrified on-line monitoring and protection device for high-voltage vacuum circuit breaker
CN203732254U (en) * 2014-01-10 2014-07-23 常州太平洋电力设备(集团)有限公司 Circuit breaker mechanical characteristic online monitoring device
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
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Cited By (8)

* Cited by examiner, † Cited by third party
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
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

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Application publication date: 20160928