CN202159104U - Metal oxide lightning arrester on-line detection system - Google Patents

Metal oxide lightning arrester on-line detection system Download PDF

Info

Publication number
CN202159104U
CN202159104U CN2011202309276U CN201120230927U CN202159104U CN 202159104 U CN202159104 U CN 202159104U CN 2011202309276 U CN2011202309276 U CN 2011202309276U CN 201120230927 U CN201120230927 U CN 201120230927U CN 202159104 U CN202159104 U CN 202159104U
Authority
CN
China
Prior art keywords
microprocessor
lightning arrester
metal oxide
arrester
links
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.)
Expired - Lifetime
Application number
CN2011202309276U
Other languages
Chinese (zh)
Inventor
刘桂梅
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.)
Nanjing Zhuoshi Electric Co Ltd
Original Assignee
Nanjing Zhuoshi 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 Nanjing Zhuoshi Electric Co Ltd filed Critical Nanjing Zhuoshi Electric Co Ltd
Priority to CN2011202309276U priority Critical patent/CN202159104U/en
Application granted granted Critical
Publication of CN202159104U publication Critical patent/CN202159104U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

The utility model discloses a metal oxide lightning arrester on-line detection system, comprising a microprocessor, wherein a leakage current sampling module is connected with the microprocessor through an A/D conversion module, a lightning stroke counting module is connected with the microprocessor through a counter, and the microprocessor is respectively connected with a storage device, a liquid crystal display and a communication module. The metal oxide lightning arrester on-line detection system can reliably and accurately realize centralized monitoring and accurately and timely report the operation condition; if the leakage occurs, the on-line detection system can automatically emit an alarm signal to enable the operators to timely master and process the accident hidden trouble in advance, thereby ensuring the safe operation of the system. The metal oxide lightning arrester on-line detection system works under the operation state of a lightning arrester, and on one hand can ensure the safe operation early warning system of the transformer station lightning arrester and enable the failure lightning arrester to be early discovered and eliminated in order to avoid the explosion of the arrester, on the other hand can transmit the leakage current and motion frequency data of the arrester remotely, thereby dispensing with the trouble of manual recording and meter reading, and reducing the workload.

Description

The metal oxide arrester on-line detecting system
Technical field
The utility model relates to a kind of detection alarm system, is a kind of metal oxide arrester on-line detecting system specifically.
Background technology
Metal oxide arrester (hereinafter to be referred as MOA) is mainly used in restriction electrical network atmospheric over-voltage or by the internal overvoltage that operation causes, is one of important protection equipment that guarantees safe operation of power system.MOA is little, in light weight owing to having excellent non-linear volt-ampere characteristic, volume; And discharge capacity is big, is a kind of novel lightning arrester that electric system is applied, and can significantly reduce by the insulating Design level of protection equipment behind the employing MOA; Obviously reduce equipment investment, improve power supply reliability; But it does not have series gap owing to MOA, and valve block is in operation and bears working voltage, and the real component in the leakage current will cause the inner member nonlinear characteristic to reduce; Increase aging speed, the lightning arrester life-span is reduced.Simultaneously; The oxide lightning arrester is in operation and also can runs into like: filth, watered and wetting, bears factor effects such as power-frequency voltage, surge voltage for a long time; Thermal runaway in the MOA hanging net operation; Even the accident of blasting happens occasionally, thereby guarantees that lightning arrester normally plays a role, and need carry out state monitoring and management to lightning arrester.
The management of metal current oxide lightning arrester running status is the basis with regular prophylactic tria, and the lightning arrester performance state is detected at the scene on the spot, judges its running status quality, and this way can't accurately be grasped the MOA running status.
Summary of the invention
Goal of the invention: the purpose of the utility model is to overcome the deficiency of prior art, and providing a kind of can onlinely detect, and detects metal oxide arrester on-line detecting system accurately.
In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme: a kind of metal oxide arrester on-line detecting system, and it comprises microprocessor, said leakage current sampling module links to each other with microprocessor through the A/D modular converter; The counting thunder module links to each other with microprocessor through counter; Described microprocessor also links to each other with storer, LCD and communication module respectively.
Wherein, described leakage current sampling module comprises sensor, filtering circuit and the amplifying circuit that connects successively, and described sensor links to each other with oxide lightning arrester to be detected, and described amplifying circuit links to each other with the A/D modular converter.
Wherein, described sensor is the induction by current sensor; Described A/D converting unit links to each other with microprocessor through input/output interface; Described communication module links to each other with microprocessor through serial communication interface.
The leakage current of operating lightning arrester is through lightning arrester operational factor collector; Deliver to the A/D modular converter to leakage current and lightning arrester action current number of times signal value that isolation induces; The digital signal that generates after the A/D module processing sends to microprocessor; The leakage current of the lightning arrester of A, B, C three-phase shows (can select and show effective value or peak value) in the LCD of this device (LCD) cocycle, show the action frequency of corresponding lightning arrester simultaneously; Can also set timing or instant printing and respectively organize the leakage current and the action frequency of lightning arrester, substitute loaded down with trivial details manual metering work fully.Exceed standard in case leak, microprocessor promptly has a pair of warning contact action output; Alerting signal and leakage current can also be uploaded to the computing machine on the LAN through LAN, reach the purpose of the automatic detection alarm of unattended operation transformer station lightning arrester fault current.
Beneficial effect: the utility model has been realized concentrated monitoring reliably, exactly, accurately, notify operation conditions at once, if there is leakage situation capable of automatic alarm, the operations staff is in time grasped and advanced processing accident potential, for system safety operation provides assurance; Owing to adopt induction mode intercepting leakage current and lightning arrester action current signal, therefore well realized isolating fully to high-tension; But the size of the leakage current of pulpit Direct observation lightning arrester and the action current number of times of lightning arrester, and can upload the operational factor of lightning arrester in real time through the ethernet local area network of electric system; The utility model is the on-line monitoring system under the lightning arrester running status, and this system can guarantee the safe operation early warning system of transformer station's lightning arrester on the one hand, and the lightning arrester of finding early and fix a breakdown avoids taking place Explosion of on Arrester; On the other hand, can carry out data remote to leakage current of an arrester and action frequency, exempt manual record, check meter numerous and diverse, reduce workload.
Description of drawings
Be illustrated as the structural representation of the utility model.
Embodiment:
Below in conjunction with accompanying drawing the utility model is done explanation further.
As shown in the figure, a kind of metal oxide arrester on-line detecting system of the utility model comprises microprocessor 1, and the model of described microprocessor 1 is the mip processor.Said leakage current sampling module 2 links to each other with microprocessor 1 through A/D modular converter 3; Described leakage current sampling module 2 comprises sensor, filtering circuit and the amplifying circuit that connects successively, and described sensor links to each other with oxide lightning arrester to be detected, and described amplifying circuit links to each other with A/D modular converter 3; Described sensor is the induction by current sensor.Described A/D converting unit 3 links to each other with microprocessor 1 through input/output interface, and described communication module 8 links to each other with microprocessor 1 through serial communication interface.
Counting thunder module 4 links to each other with microprocessor 1 through counter 5; Described counting thunder module 4 is a 1cm type lightning stroke counter; Described microprocessor 1 also links to each other with storer 6, LCD 7 respectively.
The measuring process of the utility model: the induction by current sensor records the current signal of the MOA that flows through; Then through after filtering, amplifying; Get into A/D modular converter 3 and carry out analog to digital conversion; A/D conversion makes electric current become only to contain than low-order harmonic and sizeable digital signal that this digital signal gets into microprocessor 1 and handles; Send to microprocessor 1 behind the thunderbolt number of times process counter 5 that counting thunder module 4 will be collected simultaneously and carry out aggregation process; Microprocessor 1 is presented at the information of handling well on the LCD 7, and the information of handling well simultaneously can also be stored in the storer 6, and the information via communication module of handling well 8 can be transferred to central control room at a distance, realizes detecting at a distance.
The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.

Claims (5)

1. metal oxide arrester on-line detecting system, it is characterized in that: it comprises microprocessor (1), said leakage current sampling module (2) links to each other with microprocessor (1) through A/D modular converter (3); Counting thunder module (4) links to each other with microprocessor (1) through counter (5); Described microprocessor (1) also links to each other with storer (6), LCD (7) and communication module (8) respectively.
2. a kind of metal oxide arrester on-line detecting system according to claim 1; It is characterized in that: described leakage current sampling module (2) comprises sensor, filtering circuit and the amplifying circuit that connects successively; Described sensor links to each other with oxide lightning arrester to be detected, and described amplifying circuit links to each other with A/D modular converter (3).
3. a kind of metal oxide arrester on-line detecting system according to claim 2 is characterized in that: described sensor is the induction by current sensor.
4. a kind of metal oxide arrester on-line detecting system according to claim 1 is characterized in that: described A/D converting unit (3) links to each other with microprocessor (1) through input/output interface.
5. a kind of metal oxide arrester on-line detecting system according to claim 1 is characterized in that: described communication module (8) links to each other with microprocessor (1) through serial communication interface.
CN2011202309276U 2011-07-01 2011-07-01 Metal oxide lightning arrester on-line detection system Expired - Lifetime CN202159104U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202309276U CN202159104U (en) 2011-07-01 2011-07-01 Metal oxide lightning arrester on-line detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202309276U CN202159104U (en) 2011-07-01 2011-07-01 Metal oxide lightning arrester on-line detection system

Publications (1)

Publication Number Publication Date
CN202159104U true CN202159104U (en) 2012-03-07

Family

ID=45766736

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011202309276U Expired - Lifetime CN202159104U (en) 2011-07-01 2011-07-01 Metal oxide lightning arrester on-line detection system

Country Status (1)

Country Link
CN (1) CN202159104U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102955089A (en) * 2012-11-16 2013-03-06 四川电力科学研究院 Online monitoring device applied to voltage limiter in series compensation capacitor and method thereof
CN103901302A (en) * 2014-03-25 2014-07-02 国网吉林省电力有限公司电力科学研究院 Method and device for online detection of state of leakage conductor with series gap
CN104655969A (en) * 2015-03-19 2015-05-27 国网上海市电力公司 Zinc oxide arrester online monitoring system
CN105021878A (en) * 2014-04-30 2015-11-04 长沙群瑞电子科技有限公司 Lightning arrester lightning monitoring recorder
CN105954571A (en) * 2016-07-22 2016-09-21 安徽亚辉电气自动化有限公司 Counting system for three-phase combined type overvoltage protector
CN109030924A (en) * 2018-06-13 2018-12-18 国网福建省电力有限公司龙岩供电公司 Suitable for the three-phase lightning protector leakage current wireless monitoring device in switchgear

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102955089A (en) * 2012-11-16 2013-03-06 四川电力科学研究院 Online monitoring device applied to voltage limiter in series compensation capacitor and method thereof
CN102955089B (en) * 2012-11-16 2016-04-06 国网四川省电力公司电力科学研究院 For on-Line Monitor Device and the method thereof of voltage limiter in series capacitor compensation
CN103901302A (en) * 2014-03-25 2014-07-02 国网吉林省电力有限公司电力科学研究院 Method and device for online detection of state of leakage conductor with series gap
CN105021878A (en) * 2014-04-30 2015-11-04 长沙群瑞电子科技有限公司 Lightning arrester lightning monitoring recorder
CN104655969A (en) * 2015-03-19 2015-05-27 国网上海市电力公司 Zinc oxide arrester online monitoring system
CN105954571A (en) * 2016-07-22 2016-09-21 安徽亚辉电气自动化有限公司 Counting system for three-phase combined type overvoltage protector
CN109030924A (en) * 2018-06-13 2018-12-18 国网福建省电力有限公司龙岩供电公司 Suitable for the three-phase lightning protector leakage current wireless monitoring device in switchgear

Similar Documents

Publication Publication Date Title
CN202159104U (en) Metal oxide lightning arrester on-line detection system
CN203084097U (en) On-line zinc oxide lightning arrester state monitoring device
CN104655969A (en) Zinc oxide arrester online monitoring system
CN207780137U (en) A kind of switchgear Zinc oxide arrester monitoring device
CN204142842U (en) Lightning arrester on-Line Monitor Device
CN203444063U (en) Inspection and alarm apparatus for AC mixing and DC grounding
CN103235217B (en) Dual protection act consistance monitoring device and monitoring method
CN104360138A (en) Wireless remote transmission system for online monitoring of electric transmission line arrester
CN205958658U (en) Arrester on -line monitor
CN201489065U (en) Online detection device for lightning arrester
CN207301194U (en) A kind of Surge Protector on-line monitoring system
CN203800700U (en) Power distribution network monitoring system
CN203069713U (en) Alternating-current-into-direct-current monitoring device
CN202814597U (en) High-voltage power transmission line temperature measuring system
CN105467197B (en) Integrated arrester on-Line Monitor Device
CN202676797U (en) Arc extinction resonance extinction and overvoltage protection device on-line monitoring system
CN204256037U (en) External overvoltage intelligent monitor system in a kind of 110kV transformer station
CN203535127U (en) Zinc oxide lightning arrester on-line monitor
CN204087414U (en) Electric fire monitoring system
CN202486229U (en) Lightning arrester on-line monitoring system
CN204928348U (en) Embedded dual supply automatic transfer equipment of protocol conversion ware
CN203720255U (en) Wave-recording device for direct current bus voltages
CN108183491B (en) Intelligent control device, method and system for user transformer
CN204129140U (en) Electrical leakage, discharge monitor for lightning arrester
CN203151100U (en) Reactive power compensation devicec

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20120307