CN205562672U - Integration arrester on -line monitoring device - Google Patents
Integration arrester on -line monitoring device Download PDFInfo
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- CN205562672U CN205562672U CN201521112526.5U CN201521112526U CN205562672U CN 205562672 U CN205562672 U CN 205562672U CN 201521112526 U CN201521112526 U CN 201521112526U CN 205562672 U CN205562672 U CN 205562672U
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 33
- 230000010354 integration Effects 0.000 title claims abstract description 23
- 238000004891 communication Methods 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims abstract description 12
- 230000003750 conditioning effect Effects 0.000 claims description 23
- 239000005357 flat glass Substances 0.000 claims description 10
- 239000011257 shell material Substances 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000005336 safety glass Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 8
- 238000005259 measurement Methods 0.000 abstract description 4
- 229910044991 metal oxide Inorganic materials 0.000 abstract description 4
- 150000004706 metal oxides Chemical class 0.000 abstract description 4
- 238000011161 development Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000007689 inspection Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 11
- 238000004458 analytical method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000000192 social effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Abstract
The utility model relates to an arrester online monitoring technology field especially relates to integration arrester on -line monitoring device, specifically is to zero clearance metal oxide lightning arrester, with arrester monitoring devices and the methods of measurement of mechanical type arrester monitoring devices with the integration of the online monitoring devices of electronic type arrester. The utility model discloses an it constitutes whole and resistance card parallel connection after the series connection to be established ties by mechanical type arrester monitoring devices and the online monitoring devices of electronic type arrester. Can on -line monitoring arrester total current, the time isoparametric that takes place of resistive current, action time and action to have local mechanical ampere meter, count table demonstration, remote communications, functions such as data local storage. Having improved the data measurement precision, having realized the data teletransmission, also made things convenient for the maintainer to witnessed inspections, maintenance and installation, accorded with intelligent substation's demand for development, on -line monitoring provides the new method for the arrester state of insulation, is applicable to the on -line monitoring of each electric pressure arrester, and its application prospect is wide.
Description
Technical field
The utility model relates to arrester on-line monitoring technique field, particularly relate to integration arrester on-Line Monitor Device, it is particularly directed to gapless metal-oxide lighting arrester, the lightning arrester monitoring device integrated with electronic type arrester on-Line Monitor Device by mechanical type lightning arrester monitoring device and measuring method.
Background technology
In power system, arrester is widely used as the protection device of transformer station.Traditional arrester monitoring mode is to use mechanical type ammeter and count table to monitor arrester running status, measure inaccurate and can not teletransmission, operations staff can only arrive dam site investigation data, and the most not only workload is big, efficiency is low but also can not find the operation troubles of arrester in time.In order to solve these problems, domestic occur in that electronic type arrester on-Line Monitor Device successively, possess Monitoring Data and data remote function.
At present, although electronic type arrester on-Line Monitor Device is applied on-the-spot, but traditional arrester count table still needs to retain, because maintainer needs to utilize tradition count table to draw measures point, to use testing current in resistance property instrument, and electronic type arrester on-Line Monitor Device uses transformer to measure, measurement point cannot be drawn, the most just cannot use resistive current tester, so mechanical type lightning arrester monitoring device and electronic type arrester on-Line Monitor Device are mostly simultaneously attached on lightning arrester body by scene, it is complicated that this results in monitoring device structure, integrated level is low, install loaded down with trivial details, troublesome maintenance, the problems such as cost increase.
Summary of the invention
The utility model is for above-mentioned problems of the prior art, it is provided that integration arrester on-Line Monitor Device is the integrated on-line monitoring method for gapless metal-oxide lighting arrester and have developed monitoring device on this basis.Purpose is integrated with mechanical type monitoring device in order to realize the on-Line Monitor Device of each electric pressure arrester, meets intelligent substation demand for development, provides new method for arrester on-line monitoring.
For technical problem present in above-mentioned prior art, the utility model adopts the following technical scheme that realization:
Integration arrester on-Line Monitor Device, including housing, ammeter and count table；It is in series by the mechanical type lightning arrester monitoring device being arranged in housing and electronic type arrester on-Line Monitor Device, and the entirety after series connection is connected in parallel with resistor disc.
Described shell material is that cast aluminium material is constituted.
Described electronic type arrester on-Line Monitor Device includes: transformer and signal conditioning circuit, lightning strike signals triggering circuit, central processor circuit, communication and protection circuit, clock circuit, storage circuit, power supply and protection circuit；Electronic type arrester on-Line Monitor Device enter end be exactly transformer and signal conditioning circuit enter end, electronic type arrester on-Line Monitor Device go out end be exactly lightning strike signals trigger circuit go out end；
Described mechanical type lightning arrester monitoring device includes: ammeter, count table, ammeter drive circuit, count table drive circuit；Mechanical type lightning arrester monitoring device enter end be exactly ammeter drive circuit enter end, mechanical type lightning arrester monitoring device go out end be exactly count table drive circuit go out end；
The end that goes out of mechanical type lightning arrester monitoring device is connected by the wire on printed circuit board (PCB) with the end that enters of electronic type arrester on-Line Monitor Device, thus defines cascaded structure；The end that enters of mechanical type lightning arrester monitoring device is connected with one end of resistor disc, and the end that goes out of electronic type arrester on-Line Monitor Device is connected with the other end of resistor disc, thus forms parallel-connection structure.
Described housing is to be connected and composed by case top lid and lower house lower cover, and case top lid has window, and window is sealedly connected with window glass, and ammeter, count table are installed in case top lid, show from window glass 4；Cover under housing and be provided with aviation plug and projection；Insulating press boards is arranged under housing and covers, and is used for fixing resistor disc；Cold pressing connection terminal is arranged under housing and covers, for connecting integration arrester on-Line Monitor Device and on-the-spot tie-in line；Being provided with resistor disc in the middle of housing lower cover, resistor disc is in parallel with circuit board；Housing lower cover top is incorporated on circuit board by insulation column equipped with insulation column, leakage current of an arrester.
Described projection is provided with fixing bolt, for connecting integration arrester on-Line Monitor Device and site grounding wire.
Described window glass is safety glass.
Described internal circuit board includes: ammeter drive circuit, count table drive circuit, transformer and signal conditioning circuit, lightning strike signals trigger circuit, central processor circuit, communication and protection circuit, clock circuit, storage circuit and power supply and protection circuit；Wherein ammeter drive circuit is connected with count table drive circuit, count table drive circuit is connected with transformer and signal conditioning circuit, transformer and signal conditioning circuit trigger circuit with lightning strike signals and are connected, and this four partial circuit has just been concatenated into the circulation path of leakage current；
Transformer and signal conditioning circuit are connected with central processor circuit, obtain total current value and current in resistance property value for central processor circuit；Lightning strike signals triggers circuit and is connected with central processor circuit, obtains action frequency for central processor circuit；Communication and protection circuit are connected with central processor circuit, it is achieved telecommunication；Clock circuit is connected with central processor circuit, provides the time for device；Storage circuit is connected with central processor circuit, is used for storing data；Power supply and protection circuit provide dc source for all of circuit.
Described leakage current of an arrester is incorporated on circuit board by insulation column, the most on circuit boards to flow through path as follows: leakage current flows through ammeter drive circuit, count table drive circuit, transformer and signal conditioning circuit successively, lightning strike signals triggers circuit, flows into the earth finally by shell；
When there is no overvoltage on circuit; Analyse of Reject-acting Arrester; leakage current is the least; now, count table drive circuit and lightning strike signals trigger circuit all will not action, count table does not counts; central processing unit does not counts; ammeter drive circuit normally works, and ammeter can normally indicate total current value, and central processing unit can normally obtain total current value and current in resistance property value；When overvoltage occurs on circuit; lightning arrestor movement, electric current is very big, and resistor disc transient switching is released big electric current; now; count table drive circuit and lightning strike signals trigger circuit all can action, count table counts 1 time, and central processing unit also counts 1 time; ammeter drive circuit is in by guard mode; ammeter reading is meaningless, and total current value and current in resistance property value that central processing unit obtains are the most meaningless, and after overvoltage occurs, device recovers normal.
Equipped with two resistor discs in parallel in the middle of described housing lower cover.
The utility model has the advantage that and beneficial effect:
The utility model is integrated with electronic type arrester on-Line Monitor Device by mechanical type lightning arrester monitoring device, can the parameter such as time of occurring of on-line monitoring arrester total current, current in resistance property, action frequency and action, and there is local machinery ammeter, count table shows, telecommunication, the functions such as data are locally stored.Improve DATA REASONING precision, achieve data remote, remain the interface of site examining and repairing for maintainer simultaneously, allow field operator pass through the ammeter in device window, count table and read leakage current of an arrester and action frequency more intuitively, conveniently check the various running statuses of arrester, also simplify the structure of monitoring device on lightning arrester body simultaneously.The utility model combines owing to using resistor disc and two kinds of employing modes of transformer, both the function of tradition mechanical counter had been retained, also possess all functions of electronic type on-line monitoring, it is more readily maintained and installs, meet the demand for development of intelligent substation, provide new method for lightning arrester insulation state on_line monitoring.
This device also has telecommunications functions, uses MODBUS-RTU agreement, standard RS485 communication interface, messaging parameter flexibly configurable, it is possible to comprehensive state monitoring means (main IED) slitless connection.The Monitoring Data such as total current, current in resistance property and the action frequency with timestamp can be device storage inside more than 1 year.When the arrester current value that device is monitored exceedes user's setting value, by output alarm signal, find that in time arrester is aging or problem of making moist, prevent the generation of fault.
What the utility model was reached has the technical effect that 1. realization remotely monitors and failure predication；2. speed and precision that arrester operating mode judges are accelerated；3. monitoring expense is reduced.Arrester remote online monitoring has bigger economic benefit and social effect.Both met the use of testing current in resistance property instrument, the intelligent demand of transformer substation arrester state of insulation on-line monitoring can have been met again simultaneously.This device is applicable to the on-line monitoring of each electric pressure arrester, and it has a extensive future.
With specific embodiment, the utility model is described in detail below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 and Fig. 2 is external structure schematic diagram of the present utility model；
Fig. 3 is internal structure schematic diagram of the present utility model；
Fig. 4 is board structure of circuit block diagram of the present utility model.
In figure: case top lid 1; circuit board 2, ammeter, count table 3, window glass 4; aviation plug 5; protruding 6, fixing bolt 7, housing lower cover 8; insulating press boards 9; resistor disc 10, cold pressing connection terminal 11, ammeter drive circuit 12, count table drive circuit 13, transformer and signal conditioning circuit 14, lightning strike signals trigger circuit 15, central processor circuit 16, communication and protection circuit 17, clock circuit 18, storage circuit 19, power supply and protection circuit 20.
Detailed description of the invention
The utility model is integration arrester on-Line Monitor Device; it it is the integrated on-Line Monitor Device for gapless metal-oxide lighting arrester; in series by mechanical type lightning arrester monitoring device and electronic type arrester on-Line Monitor Device; entirety after series connection is in parallel with resistor disc, and resistor disc plays the effect of pressure limiting, protection.
As shown in Figure 1-Figure 3, wherein mechanical type lightning arrester monitoring device includes: ammeter, count table 3, ammeter drive circuit 12, count table drive circuit 13.
As shown in Figure 4, electronic type arrester on-Line Monitor Device includes: transformer and signal conditioning circuit 14, lightning strike signals triggering circuit 15, central processor circuit 16, communication and protection circuit 17, clock circuit 18, storage circuit 19, power supply and protection circuit 20.
Mechanical type lightning arrester monitoring device enter end be exactly ammeter drive circuit 12 enter end, mechanical type lightning arrester monitoring device go out end be exactly count table drive circuit 13 go out end；Electronic type arrester on-Line Monitor Device enter end be exactly transformer and signal conditioning circuit 14 enter end, electronic type arrester on-Line Monitor Device go out end be exactly lightning strike signals trigger circuit 15 go out end.The end that goes out of mechanical type lightning arrester monitoring device is connected by the wire on printed circuit board (PCB) with the end that enters of electronic type arrester on-Line Monitor Device, thus defines cascaded structure；The end that enters of mechanical type lightning arrester monitoring device is connected with one end of resistor disc, and the end that goes out of electronic type arrester on-Line Monitor Device is connected with the other end of resistor disc, thus defines parallel-connection structure.
The utility model specifically includes housing, resistor disc 10, and ammeter, count table 3 and internal circuit board 2 are constituted.
Described internal circuit board 2 includes: ammeter drive circuit 12, count table drive circuit 13, transformer and signal conditioning circuit 14, lightning strike signals trigger circuit 15, central processor circuit 16, communication and protection circuit 17, clock circuit 18, storage circuit 19, power supply and protection circuit 20.
Described housing is to be connected and composed by case top lid 1 and lower house lower cover 8, and case top lid 1 has window, and window is sealedly connected with window glass 4, and window glass 4 is safety glass.Ammeter, count table 3 are installed in case top lid 1, show from window glass 4；Being additionally provided with aviation plug 5 and protruding 6 on housing lower cover 8, fixing bolt 7 is arranged in the installing hole on protruding 6, for connecting integration arrester on-Line Monitor Device and site grounding wire；Insulating press boards 9 is arranged on housing lower cover 8, is used for fixing resistor disc 10；Cold pressing connection terminal 11 is arranged on housing lower cover 8, for connecting integration arrester on-Line Monitor Device and on-the-spot tie-in line.Described shell material is that cast aluminium material is constituted.Equipped with two resistor discs 10 in parallel in the middle of housing lower cover 8, resistor disc 10 is in parallel with circuit board 2, without damage with the device on protection circuit plate；Housing lower cover 8 bottom is additionally provided with at two the aviation socket at installing hole and two for wiring.Housing lower cover 8 top is equipped with insulation column, leakage current of an arrester is incorporated on circuit board 2 by insulation column, the most on the circuit board 2 to flow through path as follows: leakage current flows through ammeter drive circuit 12, count table drive circuit 13, transformer and signal conditioning circuit 14 successively, lightning strike signals triggers circuit 15, flows into the earth finally by shell.I.e., described leakage current of an arrester is incorporated on circuit board 2 by insulation column, leakage current connects ammeter drive circuit 12 the most on the circuit board 2, ammeter drive circuit 12 is connected with count table drive circuit 13, count table drive circuit 13 is connected with transformer and signal conditioning circuit 14, transformer and signal conditioning circuit 14 trigger circuit 15 with lightning strike signals and are connected, and flow into the earth finally by shell, and this partial circuit has just been concatenated into the circulation path of leakage current.
Transformer and signal conditioning circuit 14 are connected with central processor circuit 16, obtain total current value and current in resistance property value for central processor circuit 16.Lightning strike signals triggers circuit 15 and is connected with central processor circuit 16, obtains action frequency for central processor circuit 16.Communication and protection circuit 17 are connected with central processor circuit 16, it is achieved telecommunication.Clock circuit 18 is connected with central processor circuit 16, provides the time for device.Storage circuit 19 is connected with central processor circuit 16, is used for storing data.Power supply and protection circuit 20 provide dc source for all of circuit.
Described circuit board 2; when there is no overvoltage on circuit; Analyse of Reject-acting Arrester, leakage current is the least, now; count table drive circuit 13 and lightning strike signals trigger circuit 15 all will not action; count table 3 does not counts, and central processing unit does not counts, and ammeter drive circuit 12 normally works; ammeter can normally indicate total current value, and central processing unit can normally obtain total current value and current in resistance property value；When overvoltage occurs on circuit; lightning arrestor movement, electric current is very big, and resistor disc transient switching is released big electric current; now; count table drive circuit 13 and lightning strike signals trigger circuit 15 all can action, count table counts 1 time, and central processing unit also counts 1 time; ammeter drive circuit 12 is in by guard mode; ammeter reading is meaningless, and total current value and current in resistance property value that central processing unit obtains are the most meaningless, and after overvoltage occurs, device recovers normal.
The process that central processing unit in described central processor circuit 16 obtains total current, current in resistance property and action frequency is as follows: when leakage current flows through transformer, induced-current can be induced at the secondary side of transformer, induced-current again through signal conditioning circuit carry out I/V signal conversion, filter, the operation such as amplification, transfer to central processor circuit to carry out sampling, calculating subsequently, and then obtain total current value and current in resistance property value.When there being overvoltage, lightning strike signals triggers circuit 15 can produce a triggering signal, triggers central processing unit and counts once.After central processing unit obtains total current, current in resistance property and action frequency, timestamp to be added a cover, wherein the time is provided by clock circuit 18.Final result can pass to store circuit 19 carry out locally-stored, or pass to communication and protection circuit 17 carry out data remote.Power supply and protection circuit 20 are powered to package unit and protect.
The utility model can the parameter such as time of occurring of on-line monitoring arrester total current, current in resistance property, action frequency and action, total current, electromagnetic gear display action number of times is shown by mechanical indicator table, device internal mutual sensor can precise engineering surveying small area analysis, and measurement result teletransmission to backstage.Transformer electrical isolation technology can also be utilized, it is achieved the internal hi-lo circuit electrical isolation of device, it is possible in the case of need not bypass auxiliary, can charged for replacement arrester on-Line Monitor Device.
As it has been described above, be described in detail embodiment of the present utility model, but as long as can have a lot of deformation essentially without disengaging utility model point of the present utility model and effect, this will be readily apparent to persons skilled in the art.Therefore, within such variation is also integrally incorporated in protection domain of the present utility model.
Claims (9)
1. integration arrester on-Line Monitor Device, including housing, ammeter and count table；It is characterized in that: it is in series by the mechanical type lightning arrester monitoring device being arranged in housing and electronic type arrester on-Line Monitor Device, and the entirety after series connection is connected in parallel with resistor disc.
Integration arrester on-Line Monitor Device the most according to claim 1, it is characterised in that: described shell material is that cast aluminium material is constituted.
Integration arrester on-Line Monitor Device the most according to claim 1, it is characterised in that:
Described electronic type arrester on-Line Monitor Device includes: transformer and signal conditioning circuit (14), lightning strike signals triggering circuit (15), central processor circuit (16), communication and protection circuit (17), clock circuit (18), storage circuit (19), power supply and protection circuit (20)；Electronic type arrester on-Line Monitor Device enter end be exactly transformer and signal conditioning circuit (14) enter end, electronic type arrester on-Line Monitor Device go out end be exactly lightning strike signals trigger circuit (15) go out end；
Described mechanical type lightning arrester monitoring device includes: ammeter, count table (3), ammeter drive circuit (12), count table drive circuit (13)；Mechanical type lightning arrester monitoring device enter end be exactly ammeter drive circuit (12) enter end, mechanical type lightning arrester monitoring device go out end be exactly count table drive circuit (13) go out end；
The end that goes out of mechanical type lightning arrester monitoring device is connected by the wire on printed circuit board (PCB) with the end that enters of electronic type arrester on-Line Monitor Device, thus defines cascaded structure；The end that enters of mechanical type lightning arrester monitoring device is connected with one end of resistor disc, and the end that goes out of electronic type arrester on-Line Monitor Device is connected with the other end of resistor disc, thus forms parallel-connection structure.
Integration arrester on-Line Monitor Device the most according to claim 1, it is characterized in that: described housing is to be connected and composed by case top lid (1) and lower house lower cover (8), case top lid (1) has window, window glass (4) it is sealedly connected with on window, ammeter, count table (3) are installed in case top lid (1), show from window glass (4)；Housing lower cover (8) is provided with aviation plug (5) and protruding (6)；Insulating press boards (9) is arranged on housing lower cover (8), is used for fixing resistor disc (10)；Cold pressing connection terminal (11) is arranged on housing lower cover (8), for connecting integration arrester on-Line Monitor Device and on-the-spot tie-in line；Being provided with resistor disc (10) in the middle of housing lower cover (8), resistor disc (10) is in parallel with circuit board (2)；Housing lower cover (8) top is incorporated on circuit board (2) by insulation column equipped with insulation column, leakage current of an arrester.
Integration arrester on-Line Monitor Device the most according to claim 4, it is characterised in that: described projection (6) is provided with fixing bolt (7), for connecting integration arrester on-Line Monitor Device and site grounding wire.
Integration arrester on-Line Monitor Device the most according to claim 4, it is characterised in that: described window glass (4) is safety glass.
Integration arrester on-Line Monitor Device the most according to claim 4, it is characterised in that: described circuit board (2) including: ammeter drive circuit (12), count table drive circuit (13), transformer and signal conditioning circuit (14), lightning strike signals trigger circuit (15), central processor circuit (16), communication and protection circuit (17), clock circuit (18), storage circuit (19) and power supply and protection circuit (20)；Wherein ammeter drive circuit (12) is connected with count table drive circuit (13), count table drive circuit (13) is connected with transformer and signal conditioning circuit (14), transformer and signal conditioning circuit (14) trigger circuit (15) with lightning strike signals and are connected, and this four partial circuit has just been concatenated into the circulation path of leakage current；
Transformer and signal conditioning circuit (14) are connected with central processor circuit (16), obtain total current value and current in resistance property value for central processor circuit (16)；Lightning strike signals triggers circuit (15) and is connected with central processor circuit (16), obtains action frequency for central processor circuit (16)；Communication and protection circuit (17) are connected with central processor circuit (16), it is achieved telecommunication；Clock circuit (18) is connected with central processor circuit (16), provides the time for device；Storage circuit (19) is connected with central processor circuit (16), is used for storing data；Power supply and protection circuit (20) provide dc source for all of circuit.
Integration arrester on-Line Monitor Device the most according to claim 4, it is characterized in that: described leakage current of an arrester is incorporated on circuit board (2) by insulation column, afterwards on circuit board (2) to flow through path as follows: leakage current flows through ammeter drive circuit (12), count table drive circuit (13), transformer and signal conditioning circuit (14) successively, lightning strike signals triggers circuit (15), flows into the earth finally by shell.
Integration arrester on-Line Monitor Device the most according to claim 4, it is characterised in that: equipped with two resistor discs in parallel (10) in the middle of described housing lower cover (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521112526.5U CN205562672U (en) | 2015-12-29 | 2015-12-29 | Integration arrester on -line monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521112526.5U CN205562672U (en) | 2015-12-29 | 2015-12-29 | Integration arrester on -line monitoring device |
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| CN205562672U true CN205562672U (en) | 2016-09-07 |
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| CN201521112526.5U Active CN205562672U (en) | 2015-12-29 | 2015-12-29 | Integration arrester on -line monitoring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467197A (en) * | 2015-12-29 | 2016-04-06 | 国家电网公司 | Online monitoring device of integrated lightning arrester |
| CN112630569A (en) * | 2020-12-14 | 2021-04-09 | 广东电网有限责任公司韶关供电局 | Arrester on-line monitoring device and system |
-
2015
- 2015-12-29 CN CN201521112526.5U patent/CN205562672U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467197A (en) * | 2015-12-29 | 2016-04-06 | 国家电网公司 | Online monitoring device of integrated lightning arrester |
| CN105467197B (en) * | 2015-12-29 | 2018-10-19 | 国家电网公司 | Integrated arrester on-Line Monitor Device |
| CN112630569A (en) * | 2020-12-14 | 2021-04-09 | 广东电网有限责任公司韶关供电局 | Arrester on-line monitoring device and system |
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