CN103389433A - Arrester detecting device - Google Patents
Arrester detecting device Download PDFInfo
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- CN103389433A CN103389433A CN2013103607007A CN201310360700A CN103389433A CN 103389433 A CN103389433 A CN 103389433A CN 2013103607007 A CN2013103607007 A CN 2013103607007A CN 201310360700 A CN201310360700 A CN 201310360700A CN 103389433 A CN103389433 A CN 103389433A
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- arrester
- wiring terminal
- electrically connected
- detecting device
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Abstract
The invention discloses an arrester detecting device which comprises an adjustable DC (direct current) stabilized power supply, a DC ammeter, a to-be-detected arrester wiring terminal, a to-be-detected counter wiring terminal, a counting/charging transfer switch and a megameter wiring terminal, wherein the adjustable DC stabilized power supply is electrically connected with the DC ammeter through the to-be-detected arrester wiring terminal in series; and the to-be-detected counter wiring terminal is electrically connected with a group of terminals of the counting/charging transfer switch, and the other group of terminals of the counting/charging transfer switch are electrically connected with the megameter wiring terminal. The arrester detecting device has the benefits as follows: a ZnO arrester detecting device is a special instrument used for comprehensively detecting various electrical characteristics of a ZnO arrester during electric power system operation, is suitable for power failure detection of various voltage classes of ZnO arresters and capable of timely finding dangerous defects such as internal insulation dampness of the device, aging of a valve block and the like, and can save time and reduce unnecessary waste. The whole detecting device is small in size, light, convenient to carry and easy to operate and use by a field worker.
Description
Technical field
The present invention relates to a kind of electric appliance checking device technical field; The pick-up unit that particularly relates to a kind of lightning arrester monitor.
Background technology
In order to protect the equipment in transformer station; ZnO arrester has been installed usually in transformer station; and the quality of ZnO arrester and action frequency; need to judge by lightning arrester monitor; this will the electric staff who moves of changes persuing carry out periodicity tour and special tour to lightning arrester, find in tour how abnormal this of monitor is processed? replacing is fast method, but lightning arrester, counter under changing are bad; can not effectively judge, cause the waste of material.
Summary of the invention
Can technical matters to be solved by this invention be, the arrester detecting device that provides a kind of quick judgement lightning arrester, monitor work.
The technical solution adopted in the present invention is, a kind of arrester detecting device, comprise, can regulate D.C. regulated power supply, DC ammeter, leakage current of an arrester connection terminal to be measured, counter connection terminal to be measured, capacitor charging/discharging change-over switch and megger connection terminal, the described D.C. regulated power supply of regulating is electrically connected in series by counter of lightning arrester connection terminal to be measured and DC ammeter; Described counter connection terminal to be measured is electrically connected to the discharge terminal of capacitor charging/discharging change-over switch, and described capacitor charging/discharging change-over switch charging terminal is electrically connected to the megger connection terminal.
The described output voltage of regulating D.C. regulated power supply is+12V, the range of DC ammeter is 10mA, the charge/discharge change-over switch is the double-point double-throw switch with central point, and the central point of double-point double-throw switch is electrically connected to storage capacitor, and the specification of storage capacitor is 6uF/600V.
The invention has the beneficial effects as follows, the ZnO arrester pick-up unit is the instrumentation of the every electrical specification of complete detection ZnO arrester in Operation of Electric Systems.The power failure that is applicable to the ZnO arrester of various electric pressures detects, and in time the discovering device built-in electrical insulation makes moist and the dangerous defect such as valve block is aging, can save time, and reduces unnecessary waste.The whole detection device volume is little, and is lightweight, is easy to carry, and the field staff easily operates and uses.
Description of drawings
Fig. 1 is the detection electrical schematic diagram of arrester detecting device of the present invention;
Fig. 2 is that the counter of arrester detecting device of the present invention detects principle schematic.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
As shown in Figure 2 in Fig. 1, arrester detecting device of the present invention, comprise, can regulate D.C. regulated power supply, DC ammeter, leakage current of an arrester connection terminal to be measured, counter connection terminal to be measured, capacitor charging/discharging change-over switch and megger connection terminal, the described D.C. regulated power supply of regulating is electrically connected in series by counter of lightning arrester connection terminal to be measured and DC ammeter; Described counter connection terminal to be measured is electrically connected to the discharge terminal of capacitor charging/discharging change-over switch, and described capacitor charging/discharging change-over switch charging terminal is electrically connected to the megger connection terminal.
The described output voltage of regulating D.C. regulated power supply is+12V, the range of DC ammeter is 10mA, the charge/discharge change-over switch is the double-point double-throw switch with central point, and the central point of double-point double-throw switch is electrically connected to storage capacitor, and the specification of storage capacitor is 6uF/600V.
The principle of work of arrester detecting device, utilize the resistive composition of the continuous release electric current of lightning arrester can well judge its state, so measure the leakage current of arrester ground end.It may be that humidity people because sealing problem causes invades or the premature aging of ZnO varistor valve block that current in resistance property increases considerably, and it is the main cause that the interim rising by the voltage dependent resistor (VDR) actuator temperature causes that the transient state of resistive leakage current rises.This moment, the current in resistance property composition started to play a major role, and the current in resistance property that detects lightning arrester this moment can well judge the state of lightning arrester.The making of arrester detecting device, can regulate D.C. regulated power supply and adjust to the output minimum, and lightning arrester is accessed in lightning arrester connection terminal to be measured, switch on power,, according to institute's detection lightning arrester specification, slowly adjust voltage, detect the size of its leakage current values, can judge whether lightning arrester is non-defective unit.
The detection principle of counter is used the double-point double-throw switch with central point, use the distant table of 500V to carry out charging energy-storing to the storage capacitor of the central point of access double-point double-throw switch, then, the counter of holding to another group of access double-point double-throw switch discharges, counter should record once, if the counter action is counted, this counter is non-defective unit, otherwise counter is defective products.Answer Disintegration overhaul or replacing.To register follow-on test 3～5 times, answer regular event at every turn, each time interval is no less than 30s.After test, register should be transferred to 0.After finding to install according to above-mentioned element in experiment, counter can action message, and discharge too loudly,, according to the test to each capacity capacitor, selects 6 micro farad capacitor proper.
For example, finding that there is 6 lightning arrester monitor conduction currents in tour does not start, after using pick-up unit of the present invention to detect, judge that lightning arrester monitor is normal, wherein, because lightning arrester and monitor be connected that poor wire connection causes have 5, change connect wire or surface of contact is processed after normal, have 1 for no other reason than that surge arrester failure cause.
The present invention, the ZnO arrester pick-up unit is the instrumentation of the every electrical specification of complete detection ZnO arrester in Operation of Electric Systems.The power failure that is applicable to the ZnO arrester of various electric pressures detects, and in time the discovering device built-in electrical insulation makes moist and the dangerous defect such as valve block is aging, can save time, and reduces unnecessary waste.The whole detection device volume is little, and is lightweight, is easy to carry, and the field staff easily operates and uses, and thoroughly solved the practical problems in producing, and improved the reliability to customer power supply, saved cost.
It is worthy of note; protection scope of the present invention is not limited to above-mentioned instantiation mode; according to basic fundamental design of the present invention; also available essentially identical structure; can realize purpose of the present invention; as long as those of ordinary skills need not through creative work, the embodiment that can associate, all belong to protection scope of the present invention.
Claims (2)
1. the pick-up unit of a lightning arrester, it is characterized in that, comprise, can regulate D.C. regulated power supply, DC ammeter, leakage current of an arrester connection terminal to be measured, counter connection terminal to be measured, capacitor charging/discharging change-over switch and megger connection terminal, the described D.C. regulated power supply of regulating is electrically connected in series by counter of lightning arrester connection terminal to be measured and DC ammeter; Described counter connection terminal to be measured is electrically connected to the discharge terminal of capacitor charging/discharging change-over switch, and described capacitor charging/discharging change-over switch charging terminal is electrically connected to the megger connection terminal.
2. the pick-up unit of a kind of lightning arrester according to claim 1, it is characterized in that, the described output voltage of regulating D.C. regulated power supply is+12V, the range of DC ammeter is 10mA, the charge/discharge change-over switch is the double-point double-throw switch with central point, the central point of double-point double-throw switch is electrically connected to storage capacitor, and the specification of storage capacitor is 6uF/600V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103607007A CN103389433A (en) | 2013-08-19 | 2013-08-19 | Arrester detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103607007A CN103389433A (en) | 2013-08-19 | 2013-08-19 | Arrester detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103389433A true CN103389433A (en) | 2013-11-13 |
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| CN2013103607007A Pending CN103389433A (en) | 2013-08-19 | 2013-08-19 | Arrester detecting device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104820150A (en) * | 2015-05-08 | 2015-08-05 | 宁夏中科天际防雷科技有限公司 | Switching type lightning grounding test system |
| CN104931909A (en) * | 2015-05-19 | 2015-09-23 | 国家电网公司 | Lightning arrester counter live-line test tool, system and method |
| CN106154195A (en) * | 2015-03-23 | 2016-11-23 | 国网甘肃省电力公司白银供电公司 | Once-through type spark gap on-Line Monitor Device detector |
| CN106154194A (en) * | 2015-03-23 | 2016-11-23 | 国网甘肃省电力公司白银供电公司 | AC type spark gap on-Line Monitor Device detector |
| CN107894519A (en) * | 2017-12-01 | 2018-04-10 | 国网黑龙江省电力有限公司大庆供电公司 | 220kV and above more piece Zinc-Oxide Arrester integration test case |
| CN108233235A (en) * | 2018-03-21 | 2018-06-29 | 山东电力设备有限公司 | A kind of device and its application method for handling transformer core virtual connection |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04148879A (en) * | 1990-10-12 | 1992-05-21 | Meidensha Corp | Device for detecting deterioration of lightning arrester |
| JPH09196988A (en) * | 1996-01-19 | 1997-07-31 | Mitsubishi Electric Corp | Deterioration detector for zinc oxide type lightning arrester |
| CN2896300Y (en) * | 2006-05-11 | 2007-05-02 | 中国石化集团胜利石油管理局电力管理总公司 | Passive thunder-and-lightning counter tester |
| CN201251608Y (en) * | 2008-07-10 | 2009-06-03 | 哈尔滨电业局 | Lightning arrester action counter detector |
| CN201532453U (en) * | 2009-06-17 | 2010-07-21 | 河南省电力公司商丘供电公司 | Tester of lightning arrester monitor |
| CN201903637U (en) * | 2010-11-29 | 2011-07-20 | 江苏省电力公司苏州供电公司 | Checking instrument for monitoring discharge counter on line |
-
2013
- 2013-08-19 CN CN2013103607007A patent/CN103389433A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04148879A (en) * | 1990-10-12 | 1992-05-21 | Meidensha Corp | Device for detecting deterioration of lightning arrester |
| JPH09196988A (en) * | 1996-01-19 | 1997-07-31 | Mitsubishi Electric Corp | Deterioration detector for zinc oxide type lightning arrester |
| CN2896300Y (en) * | 2006-05-11 | 2007-05-02 | 中国石化集团胜利石油管理局电力管理总公司 | Passive thunder-and-lightning counter tester |
| CN201251608Y (en) * | 2008-07-10 | 2009-06-03 | 哈尔滨电业局 | Lightning arrester action counter detector |
| CN201532453U (en) * | 2009-06-17 | 2010-07-21 | 河南省电力公司商丘供电公司 | Tester of lightning arrester monitor |
| CN201903637U (en) * | 2010-11-29 | 2011-07-20 | 江苏省电力公司苏州供电公司 | Checking instrument for monitoring discharge counter on line |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154195A (en) * | 2015-03-23 | 2016-11-23 | 国网甘肃省电力公司白银供电公司 | Once-through type spark gap on-Line Monitor Device detector |
| CN106154194A (en) * | 2015-03-23 | 2016-11-23 | 国网甘肃省电力公司白银供电公司 | AC type spark gap on-Line Monitor Device detector |
| CN104820150A (en) * | 2015-05-08 | 2015-08-05 | 宁夏中科天际防雷科技有限公司 | Switching type lightning grounding test system |
| CN104931909A (en) * | 2015-05-19 | 2015-09-23 | 国家电网公司 | Lightning arrester counter live-line test tool, system and method |
| CN107894519A (en) * | 2017-12-01 | 2018-04-10 | 国网黑龙江省电力有限公司大庆供电公司 | 220kV and above more piece Zinc-Oxide Arrester integration test case |
| CN107894519B (en) * | 2017-12-01 | 2023-08-04 | 国网黑龙江省电力有限公司大庆供电公司 | 220kV and above voltage class multisection zinc oxide arrester comprehensive test box |
| CN108233235A (en) * | 2018-03-21 | 2018-06-29 | 山东电力设备有限公司 | A kind of device and its application method for handling transformer core virtual connection |
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Application publication date: 20131113 |
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