CN203772990U - On-line detection device of state of lightning arrester with series gap line - Google Patents
On-line detection device of state of lightning arrester with series gap line Download PDFInfo
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- CN203772990U CN203772990U CN201420138717.8U CN201420138717U CN203772990U CN 203772990 U CN203772990 U CN 203772990U CN 201420138717 U CN201420138717 U CN 201420138717U CN 203772990 U CN203772990 U CN 203772990U
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- lightning arrester
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- leakage conductor
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- 238000001514 detection method Methods 0.000 title abstract description 5
- 230000033001 locomotion Effects 0.000 claims abstract description 11
- 239000004020 conductor Substances 0.000 claims description 34
- 230000009471 action Effects 0.000 claims description 19
- 230000001681 protective effect Effects 0.000 claims description 7
- 230000001052 transient effect Effects 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 abstract description 10
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000007600 charging Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
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- 230000007257 malfunction Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
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- 239000012467 final product Substances 0.000 description 1
- 230000002431 foraging effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical group 0.000 description 1
- 230000000069 prophylactic effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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Abstract
The utility model relates to an on-line detection device of a state of a lightning arrester with a series gap line and belongs to the on-line detection device of the lightning arrester with the series gap used for a power system transmission line. A lightning arrester motion current collector is connected in series in a line lightning arrester grounding wire. A lightning arrester motion power frequency current collector is connected to a data processor. A counting indicator is connected to the lightning arrester motion power frequency current collector and the data processor respectively. The data processor is connected to a fault alarm indicator. When an alarm threshold is reached or exceeded, state abnormity of the lightning arrester with the series gap line is alarmed. Therefore, state monitoring of the lightning arrester with the series gap line is realized. The device adopts a passive monitoring mode. The structure is simple. Lightning arrester state information is timely provided for operation and maintenance personnel and operation reliability of the lightning arrester with the gap line is increased.
Description
Technical field
The utility model relates to series gap lightning arrester on-line measuring device for power system transmission line, belongs to the supporting auxiliary device of transmission line of electricity thunder resisting equipment, is applicable to transmission line of electricity series gap lightning arrester condition monitoring.
Background technology
Leakage conductor is mainly used in limiting atmospheric over-voltage and causes shaft tower insulator arc-over; one of important protection equipment guaranteeing safe operation of power system; it is a kind of thunder resisting equipment that electric system is applied; running environment badly tend to run into as: filth, watered and wetting, subject to heavy current impact; heavy current impact; these will directly affect the serviceable life of leakage conductor; be in operation and there will be thermal runaway; the accident of even blasting; in order to ensure leakage conductor, normally play a role, leakage conductor need to carry out on-line monitoring to running status.
Leakage conductor mainly contains gapless and the large class leakage conductor of series gap two at present, gapless leakage conductor can adopt conventional sense to carry out effective monitoring to present situation, for series gap because buffer action is played in gap, during normal operation, there is not leakage current, adopt conventional sense and counter type effectively not to monitor deteriorated the making directly of lightning arrester, in recent years domestic disclosed patent " failure indicator for circuit lightning arrester " patent No. 2005220078602.5 for example, " line arrester positioning indicator " patent No. 200720087637.4 and " status indicator of arrester with gap line " patent No. 200810046846.3 are all for detecting lightning arrestor movement number of times, by recording cumulative number, the display action situations such as sign, can only safeguard reference is provided as equipment prophylactic repair, can not make direct judgement to lightning arrester deteriorated, in order to guarantee line arrester with gaps safe operation, need to solve a leakage conductor running status on-line monitoring difficult problem, realize line arrester with gaps on-line monitoring, improve line arrester with gaps peace operational reliability.
Summary of the invention
It is a kind of to series gap leakage conductor state on-line detector that the utility model provides, and can not make direct judgement to lightning arrester deteriorated, can not carry out to leakage conductor running status the problem of on-line monitoring to solve at present.
The technical scheme that the utility model is taked is: arrester action current collector is connected in leakage conductor ground wire, lightning arrester is started building frequently to make current collector and is connected with data processor, counting indicator is connected with lightning arrestor movement power current collector, data processor respectively, and this data processor is connected with fault alarm indicator;
Described arrester action current collector by Rogowsky coil current sensor with transient voltage suppressor, pressure-sensitive protective resistance is in parallel forms, transient voltage suppressor and pressure-sensitive protective resistance are also connected to coil output;
Described data processor consists of circuit-closing contacts, current-to-voltage converter, resistive divider and the RC timer of counting indicator;
Described counting indicator reason current-to-voltage converter, electric capacity, pointer electromagnetic formula counter and circuit-closing contacts form;
Described fault alarm indicator is by protecting diode, solenoid and indicating fault mechanism to form.
The utility model is by detecting series gap leakage conductor gap actuation time arcing power frequency continued flow time, power frequency continued flow amplitude, according to detecting data difference to the assessment of lightning arrester deterioration state and the indication of reporting to the police, realize series gap leakage conductor state and detect online.
The body Primary Component of series gap leakage conductor is metal oxide varistors valve block, its resistor disc has very superior nonlinear characteristic, under normal working voltage, its resistance value is very high, in fact be equivalent to an insulator, and the resistance of resistor disc is very little under superpotential effect, residual voltage is very low, the ability of accumulation is discharged fast, line voltage distribution rising is limited in to certain amplitude and prevents shaft tower insulator arc-over, served as after loss of voltage, it returns to normal again automatically, cut off power frequency continued flow, the power current that gap and body do not occur to flow through when aging leakage conductor body gets final product blow-out in general 1～2 cycle, power current amplitude is less than 2A, consider that lightning arrester otherness and actual operating mode comprise filth, the severe running environment influence factor such as humidity, the power frequency continued flow time that leakage conductor action gap is passed through is not more than the several seconds, current value is not more than number peace, detect above-mentioned parameter and can directly reflect the degree that lightning arrester is deteriorated, leakage conductor state is detected.
The beneficial effects of the utility model are:
(1) running status of line arrester with gaps is directly monitored, circuit is dismantled test without regularly having a power failure to leakage conductor and is detected, and has reduced operating maintenance cost, has realized series gap leakage conductor repair based on condition of component.
(2) adopt passive monitoring mode to detect leakage conductor, apparatus structure is simple, reports to the police indication obviously, and operating maintenance personnel can change fault lightning arrester in time, have improved the reliability of line powering.
(3) the movement counting correlation parameter of the utility model device meets national standard requirement, is applicable to the on-line monitoring of transmission line of electricity arrester with gaps.
(4) the utility model device is reusable, does not bear voltage while not working, and components and parts are difficult for aging, long service life.
Accompanying drawing explanation
Fig. 1 is the utility model schematic diagram, and figure comprises series gap leakage conductor 5, power transmission line 6;
Fig. 2 is the utility model arrester action current Acquisition Circuit schematic diagram;
Fig. 3 is the utility model data processor circuit schematic diagram;
Fig. 4 is the utility model counting indicator circuit theory diagrams;
Fig. 5 is the utility model fault alarm indicator circuit schematic diagram.
Embodiment
Arrester action current collector 1 is connected in leakage conductor ground wire, lightning arrester is started building frequently to make current collector 1 and is connected with data processor 2, counting indicator 3 is connected with lightning arrestor movement power current collector 1, data processor 2 respectively, and this data processor 2 is connected with fault alarm indicator 4.
Arrester action current collector 1 is by Rogowsky coil current sensor 101 and transient voltage suppressor 102, pressure-sensitive protective resistance 103 is in parallel to be formed, arrester action current passes through by Rogowsky coil the lightning current that magnetic coupling collect leakage conductor when action and impacts and power frequency continued flow signal, tested electric major loop only links together by magnetic coupling, and realize high without the tieline circle on circuit, low-voltage isolation, transient voltage suppressor 102 and pressure-sensitive protective resistance 103 are also connected to coil output, not only can suppress transient high voltage plays a protective role, and can improve the antijamming capability of whole device.
Data processor 2 forms 203 by circuit-closing contacts 301, current-to-voltage converter 201, resistive divider 202 and the RC timer of counting indicator 3, the arrester action current signal that arrester action current collector 1 gathers is greater than 50A, counting indicator 3 counting and closed circuit-closing contacts 301, current signal is input to current-to-voltage converter 201 through circuit-closing contacts 301, current signal is converted to voltage signal, voltage signal is by the R1 in resistive divider 202 circuit, R2 carries out second divided voltage, by adjusting intrinsic standoff ratio, by adjusting intrinsic standoff ratio, when between detection zone, action current is greater than certain value, as possessing one of the abnormal operation of startup warning indicator condition, leakage conductor duration T adopts RC charging modes to detect, 3 pairs of capacitor C chargings of the 3rd resistance R in RC timer circuit 203, the duration of charging of capacitor C is according to R, C charging constant is default, slowly rise to scheduled voltage, when magnitude of voltage and duration threshold value reach alarming value, can the indication of driving malfunction indicator motion.
Counting indicator 3 reason current-to-voltage converters 302, electric capacity 303, pointer electromagnetic formula counter 304 and circuit-closing contacts 301 form; When carrying out leakage conductor action, record lightning impulse number of times, and circuit-closing contacts 301 closures, when wherein leakage conductor lightning impulse movement counting surpasses 50A according to the lightning impulse current of the settled 8/20 μ S of master gauge, this counter accumulated counts and maintenance.
Fault alarm indicator 4 is comprised of protection diode 401, solenoid 402He indicating fault mechanism 403; protection diode 401 suppresses instantaneous large-current and realizes overvoltage protection; prevent that solenoid 402 from being punctured by large electric current; power frequency continued flow amplitude, duration by gap when lightning arrestor movement surpass early warning value; solenoid 402 will move, 403 indications of driving malfunction indicating mechanism and maintenance.
Described arrester action current collector gathers leakage conductor action current signal, rolling counters forward and closed its circuit-closing contacts, power frequency continued flow signal is input to current-to-voltage converter through circuit-closing contacts, current signal is converted to voltage signal, voltage signal carries out second divided voltage by the first resistance R 1, the second resistance R 2 in resistive divider circuit, by adjusting intrinsic standoff ratio, when action current is greater than setting value between detection zone, start abnormal operation warning indicator.
Claims (5)
1. one kind to series gap leakage conductor state on-line detector, it is characterized in that: arrester action current collector is connected in leakage conductor ground wire, lightning arrester is started building frequently to make current collector and is connected with data processor, counting indicator is connected with lightning arrestor movement power current collector, data processor respectively, and this data processor is connected with fault alarm indicator.
2. according to claim 1 a kind of to series gap leakage conductor state on-line detector; it is characterized in that: arrester action current collector by Rogowsky coil current sensor with transient voltage suppressor, pressure-sensitive protective resistance is in parallel forms, transient voltage suppressor and pressure-sensitive protective resistance are also connected to the coil output of Rogowsky coil current sensor.
3. according to claim 1 a kind of to series gap leakage conductor state on-line detector, it is characterized in that: data processor consists of circuit-closing contacts, current-to-voltage converter, resistive divider and the RC timer of counting indicator.
4. according to claim 1 a kind of to series gap leakage conductor state on-line detector, it is characterized in that: counting indicator reason current-to-voltage converter, electric capacity, pointer electromagnetic formula counter and circuit-closing contacts form.
5. according to claim 1 a kind of to series gap leakage conductor state on-line detector, it is characterized in that: fault alarm indicator is by protecting diode, solenoid and indicating fault mechanism to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420138717.8U CN203772990U (en) | 2014-03-25 | 2014-03-25 | On-line detection device of state of lightning arrester with series gap line |
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| CN201420138717.8U CN203772990U (en) | 2014-03-25 | 2014-03-25 | On-line detection device of state of lightning arrester with series gap line |
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| CN203772990U true CN203772990U (en) | 2014-08-13 |
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| CN201420138717.8U Expired - Fee Related CN203772990U (en) | 2014-03-25 | 2014-03-25 | On-line detection device of state of lightning arrester with series gap line |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105223446A (en) * | 2015-10-28 | 2016-01-06 | 河南开启电力实业有限公司 | Lightning arrester remote online monitoring device |
| CN105277854A (en) * | 2015-11-18 | 2016-01-27 | 国网冀北电力有限公司唐山供电公司 | Lightning arrester grounding indicator and lightning arrester grounding indication method |
| CN107677881A (en) * | 2017-10-18 | 2018-02-09 | 南阳金牛电气有限公司 | A kind of operation counter for multi-chamber arc extinguishing lightning protection device of connecting |
| CN110308373A (en) * | 2019-05-21 | 2019-10-08 | 广西电网有限责任公司电力科学研究院 | A kind of series gap arrester percussion action attribute testing platform |
| CN112415261A (en) * | 2020-11-12 | 2021-02-26 | 广东电网有限责任公司湛江供电局 | Online monitoring system and method for line arrester |
| CN112630554A (en) * | 2020-10-26 | 2021-04-09 | 国网电力科学研究院武汉南瑞有限责任公司 | Online monitoring device and method for line arrester with series gap |
-
2014
- 2014-03-25 CN CN201420138717.8U patent/CN203772990U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105223446A (en) * | 2015-10-28 | 2016-01-06 | 河南开启电力实业有限公司 | Lightning arrester remote online monitoring device |
| CN105277854A (en) * | 2015-11-18 | 2016-01-27 | 国网冀北电力有限公司唐山供电公司 | Lightning arrester grounding indicator and lightning arrester grounding indication method |
| CN105277854B (en) * | 2015-11-18 | 2017-07-04 | 国网冀北电力有限公司唐山供电公司 | A kind of arrester ground indicator |
| CN107677881A (en) * | 2017-10-18 | 2018-02-09 | 南阳金牛电气有限公司 | A kind of operation counter for multi-chamber arc extinguishing lightning protection device of connecting |
| CN110308373A (en) * | 2019-05-21 | 2019-10-08 | 广西电网有限责任公司电力科学研究院 | A kind of series gap arrester percussion action attribute testing platform |
| CN110308373B (en) * | 2019-05-21 | 2024-05-28 | 广西电网有限责任公司电力科学研究院 | Impact action characteristic test platform with series gap lightning arrester |
| CN112630554A (en) * | 2020-10-26 | 2021-04-09 | 国网电力科学研究院武汉南瑞有限责任公司 | Online monitoring device and method for line arrester with series gap |
| CN112415261A (en) * | 2020-11-12 | 2021-02-26 | 广东电网有限责任公司湛江供电局 | Online monitoring system and method for line arrester |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20210325 |
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| CF01 | Termination of patent right due to non-payment of annual fee |