CN203759182U - Lightning arrester for electric power circuit - Google Patents
Lightning arrester for electric power circuit Download PDFInfo
- Publication number
- CN203759182U CN203759182U CN201320674604.5U CN201320674604U CN203759182U CN 203759182 U CN203759182 U CN 203759182U CN 201320674604 U CN201320674604 U CN 201320674604U CN 203759182 U CN203759182 U CN 203759182U
- Authority
- CN
- China
- Prior art keywords
- lightning arrester
- current transformer
- zero
- flux current
- power circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Transformers For Measuring Instruments (AREA)
Abstract
A lightning arrester for an electric power circuit is disclosed and comprises a lightning arrester (1) arranged on the electric power circuit, a zero magnetic flux current transformer (2) which is connected with a lightning arrester on-line monitoring device, and an electric conduction screw stud (5) which is arranged between the lightning arrester (1) and the zero magnetic flux current transformer (2), wherein the electric conduction screw stud (5) is used for the zero magnetic flux current transformer (2) to induct a leakage current of the lightning arrester (1), collection and remote transmission of the leakage current of the lightning arrester (1) are realized through the zero magnetic flux current transformer (2), the lightning arrester on-line monitoring device is used for analyzing and monitoring whether insulation ageing of a valve body of the lightning arrester (1) occurs, and therefore the lightning arrester (1) is guaranteed in insulating property and safety; thus the electric power circuit is improved in safety.
Description
One, technical field
The utility model relates to a kind of lightning protection, especially a kind of lightning protection for power circuit.
Two, background technology
For 550kV and following generating, transmission of electricity, power transformation, power distribution system secure operation; need to realize lightning overvoltage protection to equipment and circuit; therefore be a kind of important power circuit parts for the lightning protection of power circuit; at the existing lightning protection for power circuit; it is all gapless metal-oxide lighting arrester; lightning arrester can because of internal wetted or arrester valve piece made aging cause leakage current increase; atmospheric over voltage protection performance reduces, and has reduced the security performance of power equipment and circuit.
Three, summary of the invention
In order to overcome above-mentioned technical disadvantages, the purpose of this utility model is to provide a kind of lightning protection for power circuit, has therefore ensured lightning arrester insulation performance and security performance, has improved the security performance of power circuit.
For achieving the above object, the technical scheme that the utility model is taked is: the zero-flux current transformer that include the lightning arrester that is arranged on power circuit, is set to be connected with lightning arrester on-Line Monitor Device, be arranged between lightning arrester and zero-flux current transformer and for the conductive stud of the leakage current of zero-flux current transformer induction lightning arrester.
The leakage current of lightning arrester goes out electric current through conductive stud at zero-flux current transformer internal induction, and this current signal is input in lightning arrester on-Line Monitor Device, carry out the functions such as leakage current analysis, total current and current in resistance property calculating, thus monitoring lightning arrester insulation performance; Owing to having designed lightning arrester, zero-flux current transformer and conductive stud, leakage current collection and remote transmission by zero-flux current transformer to lightning arrester, whether be there is the phenomenon of valve body insulation ag(e)ing by lightning arrester on-Line Monitor Device analysis monitoring lightning arrester, therefore ensure lightning arrester insulation performance and security performance, improved the security performance of power circuit.
The utility model has designed, also include terminal box, insulation filling body, conducting strip, insulcrete, connection terminal and earth stud, zero-flux current transformer be arranged in the base of lightning arrester and set of terminal box on the lateral surface of base, middle part one end that conductive stud is set to be serially connected in zero-flux current transformer are set to connect with the valve body of lightning arrester, the other end is set to connect with insulcrete, insulcrete is arranged in the base of lightning arrester, be provided with conducting strip and conducting strip one end is set to connect with the valve body of conductive stud in the upper end of insulcrete end face area, the other end is set to extend in terminal box and with earth stud and connects, between zero-flux current transformer and insulcrete, be provided with insulation filling body, connection terminal is arranged in terminal box and is set to and is connected with the output port of zero-flux current transformer, connection terminal or earth stud are set to be connected with lightning arrester on-Line Monitor Device.
In the present embodiment, zero-flux current transformer, conducting strip and insulcrete are set to connect with conductive stud by nut.
In the present embodiment, insulation filling body is set to the casting matrix of epoxy resin.
In the present embodiment, insulcrete is set to fabric swatch.
Important technology feature and technique effect in the technical program are: the brand-new fit structure of lightning arrester 1 base and zero-flux current transformer 2,3 zero-flux current transformers 2 are installed in lightning arrester 1 base, and with poured with epoxy resin, increase insulating base fastening, improve the installation strength of zero-flux current transformer 2, and lightning arrester 1 valve body ground connection, zero-flux current transformer 2, lightning arrester 1 base are reliably insulated, therefore ensure product safety performance.There is the terminal box 3 of end adapted in lightning arrester 1 valve body ground wire and zero-flux current transformer 2, inside provides connection terminal and grounding screw.Connection terminal is for zero-flux current transformer 2 and outside on-Line Monitor Device use, and grounding screw connects lightning arrester on-line monitoring counter or earthy for lightning arrester 1 valve body leakage current ground wire, is therefore convenient to product wiring, has improved product appearance quality.The inner zero-flux current transformer 2 of installing in lightning arrester 1 bottom, lightning arrester 1 valve body ground wire is passed after zero-flux current transformer 2 successively, utilize after poured with epoxy resin, zero-flux current transformer 2 is one with lightning arrester 1 entirety, elegant in appearance, and can Reliable guarantee lightning arrester 1 base, lightning arrester 1 valve body ground wire and zero-flux current transformer 2 threes' insulating property.Zero-flux current transformer can reliably gather lightning arrester 1 leakage current, realizes the teletransmission to current signal, is convenient to the use of daemon software or lightning arrester on-Line Monitor Device.
In the technical program, the important technology feature that the zero-flux current transformer of responding to for the leakage current of lightning arrester and conductive stud are the technical program, in the technical field of the lightning protection for power circuit, there is novelty, creativeness and practicality.
Four, brief description of the drawings
Fig. 1 is schematic diagram of the present utility model.
Five, embodiment
Fig. 1 is the schematic diagram of first embodiment of the present utility model, illustrates by reference to the accompanying drawings the present embodiment.The present embodiment includes lightning arrester 1, zero-flux current transformer 2, terminal box 3, conductive stud 5, insulation filling body 7, conducting strip 8, insulcrete 9, connection terminal 10 and earth stud 12, zero-flux current transformer 2 is arranged in the base 4 of lightning arrester 1 and terminal box 3 is arranged on the lateral surface of base 4, middle part one end that conductive stud 5 is set to be serially connected in zero-flux current transformer 2 are set to connect with the valve body of lightning arrester 1, the other end is set to connect with insulcrete 9, insulcrete 9 is arranged in the base 4 of lightning arrester 1, being provided with conducting strip 8 in the upper end of insulcrete 9 end face area is also set to connect with the valve body of conductive stud 5 in conducting strip 8 one end, the other end is set to extend in terminal box 3 and with earth stud 12 and connects, between zero-flux current transformer 2 and insulcrete 9, be provided with insulation filling body 7, connection terminal 10 is arranged in terminal box 3 and is set to and is connected with the output port of zero-flux current transformer 2, connection terminal 10 is set to be connected with lightning arrester on-Line Monitor Device.
In the present embodiment, zero-flux current transformer 2, conducting strip 8 and insulcrete 9 are set to connect with conductive stud 5 by nut.
In the present embodiment, insulation filling body 7 is set to the casting matrix of epoxy resin.
In the present embodiment, insulcrete 9 is set to fabric swatch.
In use the present embodiment, the leakage current of lightning arrester 1 is introduced after terminal box 3 through conductive stud 5 and conducting strip 8, can after the counter of lightning arrester on-Line Monitor Device, pass through according to field requirement earth stud 12 ground connection, realize the rough measure of the leakage current to lightning arrester discharge number of times record and leakage current.Conductive stud 5 is by zero-flux current transformer 2 simultaneously, go out electric current at zero-flux current transformer 2 internal inductions, and by the connection terminal 10 of this current signal introducing terminal box 3, be connected with lightning arrester on-Line Monitor Device, carry out the functions such as leakage current analysis, total current and current in resistance property calculating, thus monitoring lightning arrester insulation performance.
Second embodiment of the present utility model, earth stud 12 is set to be connected with lightning arrester on-Line Monitor Device.
The 3rd embodiment of the present utility model, connection terminal 10 is set to be connected with lightning arrester on-Line Monitor Device with earth stud 12.
The utlity model has lower feature:
1, owing to having designed lightning arrester 1, zero-flux current transformer 2 and conductive stud 5, leakage current collection and remote transmission by zero-flux current transformer 2 to lightning arrester 1, whether be there is the phenomenon of valve body insulation ag(e)ing by lightning arrester on-Line Monitor Device analysis monitoring lightning arrester 1, therefore ensure lightning arrester 1 insulating property and security performance, improved the security performance of power circuit.
, owing to having designed lightning arrester 1 base 4, zero-flux current transformer 2 is installed on the structure of base inside, has ensured the measuring accuracy of zero-flux current transformer 2, has avoided external environment condition to affect zero-flux current transformer 2.
3, owing to having designed zero-flux current transformer 2, can realize collection and transporting function to lightning arrester leakance, be convenient to the collection of lightning arrester insulation monitoring device signal, realize lightning arrester insulation monitoring requirement.
4, owing to having designed insulation filling body 7, owing to having adopted the process of poured with epoxy resin, in the base 4 of integrated poured to zero-flux current transformer 2, conductive stud 5, conducting strip 8 and insulcrete 9 and lightning arrester 1, base 4, the conductive stud 5 of lightning arrester 1, the mutually insulated of zero-flux current transformer 2 are realized, improve product insulating property, improved the accuracy of current acquisition.
5, owing to having designed terminal box 3, zero-flux current transformer 2 is caused on the connection terminal 10 of terminal box 3, the conductive stud 5 being connected with lightning arrester 1 is connected on the earth stud 12 of terminal box 3, be convenient to product wiring, improve product appearance quality.
In the lightning protection technical field for power circuit; The zero-flux current transformer 2 that everyly include the lightning arrester 1 that is arranged on power circuit, is set to be connected with lightning arrester on-Line Monitor Device, be arranged between lightning arrester 1 and zero-flux current transformer 2 and the technology contents of conductive stud 5 of responding to the leakage current of lightning arrester 1 for zero-flux current transformer 2 all in protection domain of the present utility model.
Claims (5)
1. the lightning protection for power circuit; It is characterized in that: the zero-flux current transformer (2) that include the lightning arrester (1) that is arranged on power circuit, is set to be connected with lightning arrester on-Line Monitor Device, be arranged between lightning arrester (1) and zero-flux current transformer (2) and for the conductive stud (5) of the leakage current of zero-flux current transformer (2) induction lightning arrester (1).
2. the lightning protection for power circuit according to claim 1, it is characterized in that: also include terminal box (3), insulation filling body (7), conducting strip (8), insulcrete (9), connection terminal (10) and earth stud (12), zero-flux current transformer (2) is arranged in the base (4) of lightning arrester (1) and terminal box (3) is arranged on the lateral surface of base (4), middle part one end that conductive stud (5) is set to be serially connected in zero-flux current transformer (2) are set to connect with the valve body of lightning arrester (1), the other end is set to connect with insulcrete (9), insulcrete (9) is arranged in the base (4) of lightning arrester (1), be provided with conducting strip (8) and conducting strip (8) one end is set to connect with the valve body of conductive stud (5) in the upper end end face area of insulcrete (9), the other end is set to extend in terminal box (3) and with earth stud (12) and connects, between zero-flux current transformer (2) and insulcrete (9), be provided with insulation filling body (7), connection terminal (10) is arranged in terminal box (3) and is set to and is connected with the output port of zero-flux current transformer (2), connection terminal (10) or earth stud (12) are set to be connected with lightning arrester on-Line Monitor Device.
3. the lightning protection for power circuit according to claim 2; It is characterized in that: zero-flux current transformer (2), conducting strip (8) and insulcrete (9) are set to connect with conductive stud (5) by nut.
4. the lightning protection for power circuit according to claim 2; It is characterized in that: insulation filling body (7) is set to the casting matrix of epoxy resin.
5. the lightning protection for power circuit according to claim 2; It is characterized in that: insulcrete (9) is set to fabric swatch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320674604.5U CN203759182U (en) | 2013-10-30 | 2013-10-30 | Lightning arrester for electric power circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320674604.5U CN203759182U (en) | 2013-10-30 | 2013-10-30 | Lightning arrester for electric power circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203759182U true CN203759182U (en) | 2014-08-06 |
Family
ID=51254438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320674604.5U Expired - Fee Related CN203759182U (en) | 2013-10-30 | 2013-10-30 | Lightning arrester for electric power circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203759182U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448440A (en) * | 2015-12-03 | 2016-03-30 | 成都格瑞思文化传播有限公司 | Monitorable lightning arrester |
| CN108808451A (en) * | 2018-06-09 | 2018-11-13 | 袁永华 | A kind of electric power lightning arrester of Intelligence Feedback data |
| CN110333407A (en) * | 2019-07-05 | 2019-10-15 | 安徽斯派迪电气技术有限公司 | Intelligent metal oxide arrester |
| CN110441639A (en) * | 2019-09-09 | 2019-11-12 | 周封 | Electrical wiring column integrated-type intelligent electric link net sensor |
-
2013
- 2013-10-30 CN CN201320674604.5U patent/CN203759182U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448440A (en) * | 2015-12-03 | 2016-03-30 | 成都格瑞思文化传播有限公司 | Monitorable lightning arrester |
| CN108808451A (en) * | 2018-06-09 | 2018-11-13 | 袁永华 | A kind of electric power lightning arrester of Intelligence Feedback data |
| CN110333407A (en) * | 2019-07-05 | 2019-10-15 | 安徽斯派迪电气技术有限公司 | Intelligent metal oxide arrester |
| CN110441639A (en) * | 2019-09-09 | 2019-11-12 | 周封 | Electrical wiring column integrated-type intelligent electric link net sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203405507U (en) | Integrally cast electronic voltage transformer for detecting current | |
| CN203759182U (en) | Lightning arrester for electric power circuit | |
| CN205643476U (en) | Outdoor zero sequence and phase sequence voltage measurement device | |
| CN103323751A (en) | High-voltage short-cable insulation terminal partial discharge testing device and using method | |
| CN206602067U (en) | Pole | |
| CN202471806U (en) | On-line monitoring sensing device for transformer-core earth current | |
| CN204065293U (en) | With the lightning arrester on-Line Monitor Device of function of shielding | |
| CN103743978B (en) | Multifunction testing device for gas-filled switch cabinet | |
| CN203148607U (en) | Post porcelain insulator torsional stress strain test system | |
| CN203324357U (en) | Electronic voltage transformer used for detecting high voltage resistor current | |
| CN107328966A (en) | A kind of power cable insulation experiment sleeve and application method | |
| CN102305903A (en) | Partial discharge detection method for pulse current of electrified operation single phase integrated gas insulated switchgear (GIS) | |
| CN203365519U (en) | Sampling device for high-voltage bushing electrified detection test | |
| CN207603177U (en) | A kind of grounding box of recordable discharge time and Leakage Current | |
| CN207516494U (en) | A kind of bus voltage measurement device based on GIS disc insulator distribution capacity | |
| KR102413919B1 (en) | Partial discharge monitoring system and patial discharge monitoring method | |
| CN205333812U (en) | Test system of high -voltage switch contact | |
| CN201594103U (en) | Sleeve-type high-voltage one-phase sampler | |
| CN204241608U (en) | A kind of leakage current testing cassete | |
| CN203287474U (en) | Portable-type direct-current test discharge rod | |
| CN205786816U (en) | A kind of electronic type voltage current transformer | |
| CN207036963U (en) | A kind of teaching mode for being used to measure liquid resistance size | |
| CN204361344U (en) | A kind of insulating sleeve of looped network gas-filling cabinet | |
| CN201181314Y (en) | High voltage electroscope | |
| CN205157063U (en) | Wireless temperature measurement device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20191030 |