CN103197169A - Lightning arrester comprehensive performance detection circuit - Google Patents
Lightning arrester comprehensive performance detection circuit Download PDFInfo
- Publication number
- CN103197169A CN103197169A CN2013100577527A CN201310057752A CN103197169A CN 103197169 A CN103197169 A CN 103197169A CN 2013100577527 A CN2013100577527 A CN 2013100577527A CN 201310057752 A CN201310057752 A CN 201310057752A CN 103197169 A CN103197169 A CN 103197169A
- Authority
- CN
- China
- Prior art keywords
- circuit
- lightning arrester
- current
- microprocessor
- combination 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
Links
Images
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Thermistors And Varistors (AREA)
Abstract
The invention discloses a lightning arrester comprehensive performance detection circuit. The lightning arrester comprehensive performance detection circuit comprises a current collecting circuit, a voltage collecting circuit, an electric energy quality collection circuit, a microprocessor, an addressing circuit, a lightning counting circuit and a power circuit. According to the lightning arrester comprehensive performance detection circuit, a current transformer is used for acquiring a leaked current signal in an electric field induction mode, an induction type capacitance sensor is used for acquiring a voltage phase signal in a non-contact mode, by means of the electric energy quality collection circuit, the purpose of using comprehensive methods such as total current, resistive current and phase difference to detect the performances of a lightning arrester is achieved, and the lightning arrester comprehensive performance detection circuit has the advantages of being high in detection precision, stable in performance and the like.
Description
Technical field
The present invention relates to a kind of circuit that utilizes integrated approachs such as total current, current in resistance property, phase differential that the lightning arrester performance is detected.
Background technology
Metal zinc oxide lightning arrester (be called for short MOA) is an outstanding achievement aspect overvoltage protection in recent decades.Good because of its overvoltage protection characteristic, the circulation capacity is big, movement response is fast, simple in structure, volume is little, advantage such as in light weight has progressively replaced old valve arrester, has obtained widespread use in electric system.But because lightning arrester will bear system's working voltage effect for a long time; the catabiosis that the MOA valve block will occur; and the effect of factors such as aging, moist, filth and superpotential can cause the increase of current in resistance property and lightning arrester power; valve block can aggravate deterioration gradually; cause the MOA insulation characterisitic to be destroyed, lose protective effect and cause thermal runaway, when serious even also can blast; and in a single day the MOA accident takes place, can lead to grave consequences.Therefore, reliable detection, the judgement to MOA performance quality become a noticeable problem.In order to find in time that MOA makes moist, aging and other hidden danger, avoid will improving the MOA product reliability on the one hand because accident causes the tremendous economic loss, strengthen quality control, to carry out simultaneously that effective performance is good and bad to be detected and condition diagnosing to MOA.
At present, the mode of detection MOA mainly contains periodically have a power failure prerun and online live testing and monitoring etc.Periodically prophylactic tria generally carries out under power down mode, is the comparatively general detection means that electric system is used the earliest.At present for the periodicity prophylactic tria, main pilot project is the leakage current of measuring under the U1mA of reference voltage U1mA under the lightning arrester direct current 1mA and 75%.The advantage of this method of testing be the result that measures comparatively accurately and reliably, shortcoming must make the lightning arrester test that has a power failure exactly, process is trouble comparatively also, not only influences normal power supply but also waste time and energy, so online charged detection method occurred in conjunction with actual demand.Online charged detection MOA can understand the runnability of MOA at any time under situation about not having a power failure, the phenomenon that in time notes abnormalities and accident potential, to take effective preventive measure, the accident that prevents takes place or enlarges to cause bigger economic loss, guarantees that it moves under good state.The online charged detection of MOA has been the important topic of research of going together both at home and abroad in recent years, the further breakthrough of its achievement in research will have profound significance to the safe operation of electric system, the present invention is on the basis of analyzing the MOA principle of work, and propose to judge MOA performance qualities with integrated approachs such as total current, current in resistance property, phase differential that this method can be more clear, accurately and easily the performance quality to MOA detects judgement according to practical experience.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of lightning arrester combination property testing circuit, based on the electric field induction technology, utilize the capacitive transducer noncontact to obtain voltage phase signal, and by special-purpose quality of power supply chip, realize utilizing integrated approachs such as total current, current in resistance property, phase differential that the lightning arrester performance is detected.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
Lightning arrester combination property testing circuit comprises current acquisition circuit, voltage collection circuit, quality of power supply acquisition chip, microprocessor, addressing circuit, counting thunder circuit and power circuit: described power circuit provides electric energy for quality of power supply acquisition chip and microprocessor; Described addressing circuit is used for selecting the lightning arrester that needs detection; Described counting thunder circuit is used for the thunderbolt number of times of lightning arrester is counted, and count results is sent to microprocessor; Described current acquisition circuit is gathered the Leakage Current signal of lightning arrester by current transformer in the electric field induction mode, and will gather signal and send to quality of power supply acquisition chip; Described voltage collection circuit is gathered the operating voltage signal of lightning arrester by the induction type capacitive transducer in the noncontact mode, and will gather signal and send to quality of power supply acquisition chip; Described quality of power supply acquisition chip obtains the effective value of electric current, the phase difference value of voltage and current according to the signal that receives, and the value of obtaining sends to microprocessor; The current in resistance property of the calculated signals lightning arrester that described microprocessor sends according to quality of power supply acquisition chip, and obtain the combination property of lightning arrester in conjunction with the signal that the counting thunder circuit sends.
Preferably, also comprise display circuit, described display circuit is used for showing the information of microprocessor, such as information such as current in resistance property, total current, phase differential, thunderbolt number of times.
Preferably, also comprise communication interface circuit, described communication interface circuit is used for the information of unofficial biography microprocessor; Described communication interface circuit can adopt 485 interfaces etc.
Preferably, the current transformer that uses in the described current acquisition circuit is that winding and Secondary Winding turn ratio are current transformer 1:1, that can collect microampere order lightning arrester Leakage Current, is a kind of high-performance current transformer.
Preferably, the induction type capacitive transducer that uses in the described voltage collection circuit for electric pressure is the induction type capacitive transducer of 10 ~ 220kV, during use, gets final product near the lightning arrester placement.
Preferably, described quality of power supply acquisition chip is the IDT-90E36 chip, is a kind of special-purpose quality of power supply acquisition chip, can directly obtain the effective value of electric current, the phase difference value of voltage and current; Can certainly adopt other quality of power supply acquisition chip.
Preferably, described addressing circuit is toggle switch; General lightning arrester is three to be used simultaneously, and the combination property of lightning arrester is detected and need carry out one by one, selects the lightning arrester that need detect by address selector.
Preferably, described counting thunder circuit comprises diode, electric capacity and relay, when thunder-strike current enters the counting thunder circuit, at first pass through diode, pass through capacitance energy storage then, when electric capacity both end voltage during greater than setting value, then drive relay work, by the relay working signal thunderbolt number of times is counted.
Preferably, described microprocessor is chips such as PIC series or AVR series.
Preferably, described power circuit is battery, sun power or civil power.
Beneficial effect: lightning arrester combination property testing circuit provided by the invention, utilize current transformer with the electric field induction mode obtain the Leakage Current signal, utilize the induction type capacitive transducer with the noncontact mode obtain voltage phase signal, by quality of power supply chip, the purpose that realization utilizes integrated approachs such as total current, current in resistance property, phase differential that the lightning arrester performance is detected has characteristics such as accuracy of detection height, stable performance.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further explanation.
Be illustrated in figure 1 as a kind of lightning arrester combination property testing circuit, comprise current acquisition circuit 1, voltage collection circuit 2, quality of power supply acquisition chip 3, microprocessor 4, addressing circuit 5, counting thunder circuit 6, communication interface circuit 7, display circuit 8 and power circuit 9.
Described power circuit 9 provides electric energy for quality of power supply acquisition chip 3 and microprocessor 4, is battery, or sun power or civil power.
Described addressing circuit 5 adopts toggle switch, is used for selecting the lightning arrester that needs detection.
Described counting thunder circuit 6 is used for the thunderbolt number of times of lightning arrester is counted, and count results is sent to microprocessor 4; Described counting thunder circuit 6 comprises diode, electric capacity and relay, when thunder-strike current enters counting thunder circuit 6, at first pass through diode, pass through capacitance energy storage then, when electric capacity both end voltage during greater than setting value, then drive relay work, by the relay working signal thunderbolt number of times is counted.
Described current acquisition circuit 1 is gathered the Leakage Current signal of lightning arrester by current transformer in the electric field induction mode, and will gather signal and send to quality of power supply acquisition chip 3; Current transformer used herein is that winding and Secondary Winding turn ratio are high-performance current transformer 1:1, that can collect microampere order lightning arrester Leakage Current.
Described voltage collection circuit 2 is gathered the operating voltage signal of lightning arrester by the induction type capacitive transducer in the noncontact mode, and will gather signal and send to quality of power supply acquisition chip 3; Capacitive transducer used herein for electric pressure is the induction type capacitive transducer of 10 ~ 220kV, during use, gets final product near the lightning arrester placement.
Described quality of power supply acquisition chip 3 adopts the IDT-90E36 chip, directly obtain the effective value of electric current, the phase difference value of voltage and current according to the signal that receives, and the value of obtaining sends to microprocessor 4.
Described microprocessor 4 adopts PIC series or AVR family chips, the current in resistance property of the calculated signals lightning arrester that sends according to quality of power supply acquisition chip 3, and obtain the combination property of lightning arrester in conjunction with the signal that counting thunder circuit 6 sends.
Described display circuit 8 is used for showing the information of microprocessor 4, comprises information such as current in resistance property, total current, phase differential, thunderbolt number of times.
Described communication interface circuit 7 is used for the information of unofficial biography microprocessor 4, adopts 485 interfaces.
The above only is preferred implementation of the present invention; be noted that for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. lightning arrester combination property testing circuit, it is characterized in that: comprise current acquisition circuit (1), voltage collection circuit (2), quality of power supply acquisition chip (3), microprocessor (4), addressing circuit (5), counting thunder circuit (6) and power circuit (9)
Described power circuit (9) provides electric energy for quality of power supply acquisition chip (3) and microprocessor (4);
Described addressing circuit (5) is used for selecting the lightning arrester that needs detection;
Described counting thunder circuit (6) is used for the thunderbolt number of times of lightning arrester is counted, and count results is sent to microprocessor (4);
Described current acquisition circuit (1) is gathered the Leakage Current signal of lightning arrester by current transformer in the electric field induction mode, and will gather signal and send to quality of power supply acquisition chip (3);
Described voltage collection circuit (2) is gathered the operating voltage signal of lightning arrester by the induction type capacitive transducer in the noncontact mode, and will gather signal and send to quality of power supply acquisition chip (3);
Described quality of power supply acquisition chip (3) obtains the effective value of electric current, the phase difference value of voltage and current according to the signal that receives, and the value of obtaining sends to microprocessor (4);
The current in resistance property of the calculated signals lightning arrester that described microprocessor (4) sends according to quality of power supply acquisition chip (3), and obtain the combination property of lightning arrester in conjunction with the signal that counting thunder circuit (6) sends.
2. lightning arrester combination property testing circuit according to claim 1 is characterized in that: also comprise display circuit (8), described display circuit (8) is used for showing the information of microprocessor (4).
3. lightning arrester combination property testing circuit according to claim 1 is characterized in that: also comprise communication interface circuit (7), described communication interface circuit (7) is used for the information of unofficial biography microprocessor (4).
4. lightning arrester combination property testing circuit according to claim 1, it is characterized in that: the current transformer that uses in the described current acquisition circuit (1) is that winding and Secondary Winding turn ratio are current transformer 1:1, that can collect microampere order lightning arrester Leakage Current.
5. lightning arrester combination property testing circuit according to claim 1 is characterized in that: the induction type capacitive transducer that uses in the described voltage collection circuit (2) is the induction type capacitive transducer of 10 ~ 220kV for electric pressure.
6. lightning arrester combination property testing circuit according to claim 1, it is characterized in that: described quality of power supply acquisition chip (3) is the IDT-90E36 chip.
7. lightning arrester combination property testing circuit according to claim 1, it is characterized in that: described addressing circuit (5) is toggle switch.
8. lightning arrester combination property testing circuit according to claim 1, it is characterized in that: described counting thunder circuit (6) comprises diode, electric capacity and relay, when thunder-strike current enters counting thunder circuit (6), at first pass through diode, pass through capacitance energy storage then, when electric capacity both end voltage during greater than setting value, then drive relay work, by the relay working signal thunderbolt number of times is counted.
9. lightning arrester combination property testing circuit according to claim 1, it is characterized in that: described microprocessor (4) is PIC series or AVR family chip.
10. lightning arrester combination property testing circuit according to claim 1, it is characterized in that: described power circuit (9) is battery, sun power or civil power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100577527A CN103197169A (en) | 2013-02-25 | 2013-02-25 | Lightning arrester comprehensive performance detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100577527A CN103197169A (en) | 2013-02-25 | 2013-02-25 | Lightning arrester comprehensive performance detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103197169A true CN103197169A (en) | 2013-07-10 |
Family
ID=48719852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100577527A Pending CN103197169A (en) | 2013-02-25 | 2013-02-25 | Lightning arrester comprehensive performance detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103197169A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630769A (en) * | 2013-07-11 | 2014-03-12 | 保定市超人电子有限公司 | Online zinc oxide arrester monitoring instrument |
| CN103630729A (en) * | 2013-11-13 | 2014-03-12 | 国家电网公司 | One-step wiring device and method for testing 1000kV lightning arrester reference voltage and leakage current |
| CN104360138A (en) * | 2014-11-21 | 2015-02-18 | 国家电网公司 | Wireless remote transmission system for online monitoring of electric transmission line arrester |
| CN104505939A (en) * | 2014-12-17 | 2015-04-08 | 张远海 | Photovoltaic cell lightning arrester with photovoltaic cell damage detecting and monitoring function |
| CN108303608A (en) * | 2018-01-09 | 2018-07-20 | 国网安徽省电力公司阜阳供电公司 | Arrester routine test comprehensive test device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2376681Y (en) * | 1999-05-28 | 2000-05-03 | 黄建国 | Electricity discharigng counter for arrester |
| CN101581748A (en) * | 2009-06-24 | 2009-11-18 | 西安工程大学 | Zinc oxide arrester on-line monitoring system |
| CN101655532A (en) * | 2008-12-16 | 2010-02-24 | 河海大学常州校区 | GPRS-based wireless remote online monitoring system of distributed arrester |
| CN102323508A (en) * | 2011-09-20 | 2012-01-18 | 河海大学常州校区 | Performance online detection device of induction type oxide arrester |
| CN203054139U (en) * | 2013-02-03 | 2013-07-10 | 四川得丰电气有限公司 | Lightning arrester performance online detection device |
-
2013
- 2013-02-25 CN CN2013100577527A patent/CN103197169A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2376681Y (en) * | 1999-05-28 | 2000-05-03 | 黄建国 | Electricity discharigng counter for arrester |
| CN101655532A (en) * | 2008-12-16 | 2010-02-24 | 河海大学常州校区 | GPRS-based wireless remote online monitoring system of distributed arrester |
| CN101581748A (en) * | 2009-06-24 | 2009-11-18 | 西安工程大学 | Zinc oxide arrester on-line monitoring system |
| CN102323508A (en) * | 2011-09-20 | 2012-01-18 | 河海大学常州校区 | Performance online detection device of induction type oxide arrester |
| CN203054139U (en) * | 2013-02-03 | 2013-07-10 | 四川得丰电气有限公司 | Lightning arrester performance online detection device |
Non-Patent Citations (1)
| Title |
|---|
| 曹晖等: "MOA老化试验监控系统的设计", 《电瓷避雷器》, no. 1, 31 December 2004 (2004-12-31) * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630769A (en) * | 2013-07-11 | 2014-03-12 | 保定市超人电子有限公司 | Online zinc oxide arrester monitoring instrument |
| CN103630729A (en) * | 2013-11-13 | 2014-03-12 | 国家电网公司 | One-step wiring device and method for testing 1000kV lightning arrester reference voltage and leakage current |
| CN103630729B (en) * | 2013-11-13 | 2015-12-30 | 国家电网公司 | The primary connection device and method of test 1000kV lightning arrester reference voltage and leakage current |
| CN104360138A (en) * | 2014-11-21 | 2015-02-18 | 国家电网公司 | Wireless remote transmission system for online monitoring of electric transmission line arrester |
| CN104505939A (en) * | 2014-12-17 | 2015-04-08 | 张远海 | Photovoltaic cell lightning arrester with photovoltaic cell damage detecting and monitoring function |
| CN108303608A (en) * | 2018-01-09 | 2018-07-20 | 国网安徽省电力公司阜阳供电公司 | Arrester routine test comprehensive test device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103197169A (en) | Lightning arrester comprehensive performance detection circuit | |
| CN101776435A (en) | Dielectric-capacitance testing method of deformation degree of transformer winding | |
| CN201788245U (en) | Online monitor device for service life of arrester with gaps | |
| CN106168638A (en) | A kind of method utilizing protective relaying device to realize high-voltage parallel capacitor on-line monitoring | |
| CN101446619B (en) | Alarm for detecting faults of overhead lines of distribution network | |
| CN108225580A (en) | A kind of power cable temperature-measurindevice device and temp measuring method | |
| CN211905534U (en) | Lightning arrester on-line monitoring remote transmission system | |
| CN102323508A (en) | Performance online detection device of induction type oxide arrester | |
| CN101701997A (en) | Solar energy dual intelligent high voltage power circuit real-time failure detection method and device | |
| CN112904236A (en) | Overhead line short circuit grounding fault detection sensor | |
| CN204091111U (en) | Early-warning for high pressure insulating boot | |
| CN103308753A (en) | On-line overvoltage monitoring system based on switching surge current of lightning arrester | |
| CN103560484B (en) | Three current transformer on-line monitoring multipoint earthing of clamping piece of transformer current control devices | |
| CN201314941Y (en) | Trolly wire fault alarm | |
| CN205027882U (en) | Battery cell's voltage diagnosis collection system | |
| CN212514768U (en) | Lightning arrester on-line monitor adopting leakage current for power supply | |
| CN211554134U (en) | Device for judging small current variable by apparent power | |
| CN201050358Y (en) | Device for monitoring oil well pumping unit start-stop and collecting up and down stroke electric current and punching number | |
| CN103245836A (en) | Novel intelligent tramegger with self-discharge function | |
| CN203630208U (en) | Double-current-transformer online monitoring transformer clamp multipoint grounding current control device | |
| CN202815110U (en) | Optical fiber oxide lightning arrester performance on-line detection device | |
| CN110133358B (en) | Suppression management system of overvoltage | |
| CN202797939U (en) | Line voltage change anti ferroresonance device | |
| CN203562840U (en) | Power distribution equipment on-line monitoring early-warning terminal | |
| CN205581193U (en) | Distribution lines voltage monitoring devices and monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130710 |