CN104330706A - Lightning stroke detector - Google Patents
Lightning stroke detector Download PDFInfo
- Publication number
- CN104330706A CN104330706A CN201410671041.3A CN201410671041A CN104330706A CN 104330706 A CN104330706 A CN 104330706A CN 201410671041 A CN201410671041 A CN 201410671041A CN 104330706 A CN104330706 A CN 104330706A
- Authority
- CN
- China
- Prior art keywords
- current
- lightning stroke
- lightning
- processor
- detecting device
- 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
Landscapes
- Locating Faults (AREA)
Abstract
The invention discloses a lightning stroke detector. The lightning stroke detector comprises a current transformer for acquiring the differential current of transmission conductors on the two ends of a detection point, a processor for monitoring the differential current acquired by the current transformer and judging the happening of a lightning stroke event when the value of the differential current exceeds a preset threshold, an indicator for sending an instruction signal to the detection point of the lightning stroke event when the processor judges the happening of the lightning stroke event. The lightning stroke detector has the advantages that the current transformer is used for acquiring the differential current of the transmission conductors on the two ends of the detection point, the differential current is tiny under normal conditions and basically can be neglected, and when the lightning stroke event happens, the lightning current is large and the difference between the differential current and the normal current is obvious, and therefore, the lightning stroke faults can be indicated more accurately and the sensitivity is higher.
Description
Technical field
The present invention relates to field of power, particularly relate to a kind of lightning stroke detecting device.
Background technology
According to national grid generating run situation analysis in recent years, in 110-500kV equipment breakdown, lightning stroke trip number of times accounts for transmission facility and always to trip first of number of times, causes transmission facility unplanned outage number of times ratio to account for second, has had a strong impact on safety and the reliability service of electrical network.
How operation power administrative authority, when running into transmission line lightning stroke fault, fast monitors position of failure point, is the key organized rapid rush-repair, repair normal operation, on electric power line pole tower, therefore arranges lightning stroke detecting device be necessary.
The lightning strike indicator of current power transmission line applications mostly is the detection indicating device of the magnetic principles research and development utilizing lightning impulse current, lightning current to produce, utilize the magnetic excitation inner rotation of lightning impulse current or lightning current generation, launch or explosion mechanism, demonstrate obvious mark, the position of display thunderbolt.But, have fixing action current value during such apparatus design, when the electric current arrival working value timer of thunderbolt to shaft tower could start.If shaft tower is struck by lightning but thunder-strike current does not arrive working value, device can not play the effect of instruction thunderbolt position.Therefore, the sensitivity of device has much room for improvement.
Summary of the invention
The object of this invention is to provide a kind of lightning stroke detecting device, object is to solve the not high problem of the sensitivity of existing lightning stroke detecting device.
For solving the problems of the technologies described above, the invention provides a kind of lightning stroke detecting device, comprising:
Current transformer, for the difference stream electric current of the transmission pressure at acquisition testing point two ends;
Processor, for monitoring the difference stream electric current that described current transformer collects, when described difference stream current value exceedes default threshold value, judges that thunderbolt event occurs;
Indicator, during for judging that described thunderbolt event occurs when described processor, the check point that described thunderbolt event occurs sends indicator signal.
Alternatively, described current transformer comprises for the difference stream electric current of the transmission pressure at acquisition testing point two ends:
Described current transformer specifically for, gather and be positioned at the current differential of the transmission pressure of insulator chain both sides, as described difference stream electric current.
Alternatively, described processor has the device coding corresponding with the check point of described processor installation site.
Alternatively, described indicator is one or more LED light, and when described thunderbolt event occurs, pilot lamp glimmers within default instruction time, after exceeding described default instruction time, automatically resets.
Alternatively, also comprise:
Storer, during for judging that described thunderbolt event occurs at described processor, stores lightning current information, and described lightning current information comprises the waveform of electric current when described thunderbolt event occurs, maximum amplitude and time of origin.
Alternatively, also comprise:
Receiving terminal, for carrying out alternately with described processor, send the instruction of the lightning current information of inquiry first monitoring point to processor, by described device coding, identify the first processor corresponding with described first monitoring point, receive the lightning current information that described first processor sends; Described receiving terminal also controls for sending the instruction that described indicator stops sending indicator signal.
Alternatively, also comprise:
Display, shows for the lightning current information received described receiving terminal.
Alternatively, also comprise:
Power supply, powers for giving described processor and indicator.
Alternatively, described power supply comprises:
Getting can coil and stabilized voltage supply, described in get coil to be that open-close type is arranged on described transmission pressure or merges with described current transformer and is installed on described transmission pressure.
Alternatively, described processor is arranged on can inside, and described can is fixed on described transmission pressure by preformed armor rods.
Lightning stroke detecting device provided by the present invention, by the difference stream electric current of the transmission pressure at current transformer acquisition testing point two ends, under normal circumstances, this difference stream electric current is very little, substantially can ignore.When there being thunderbolt event to occur, lightning current is very large, and difference stream electric current is now very large.Therefore processor carries out real-time monitoring to the difference stream electric current that current transformer collects, and when described difference stream current value exceedes default threshold value, then judges that thunderbolt event occurs.Meanwhile, Control director indicates the position that thunderbolt event occurs.Due to lightning stroke detecting device provided by the present invention, the fault current when the event of thunderbolt occurs and between normal current difference obvious, therefore, it is possible to indicate lightning fault more accurately, sensitivity is higher.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of a kind of embodiment of lightning stroke detecting device provided by the present invention;
Fig. 2 is the structured flowchart of the another kind of embodiment of lightning stroke detecting device provided by the present invention;
Fig. 3 is the scheme of installation of lightning stroke detecting device provided by the present invention.
Embodiment
Core of the present invention is to provide a kind of lightning stroke detecting device, in electric system, detects the transmission line of electricity that thunderbolt event occurs.
In order to make those skilled in the art person understand the present invention program better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.Obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, this device comprises the structured flowchart of a kind of embodiment of lightning stroke detecting device provided by the present invention:
Current transformer 11, for the difference stream electric current of the transmission pressure at acquisition testing point two ends;
Processor 12, for monitoring the difference stream electric current that described current transformer collects, when described difference stream current value exceedes default threshold value, judges that thunderbolt event occurs;
Indicator 13, during for judging that described thunderbolt event occurs when described processor, the check point that described thunderbolt event occurs sends indicator signal.
Lightning stroke detecting device provided by the present invention, by the difference stream electric current of the transmission pressure at current transformer acquisition testing point two ends, under normal circumstances, this difference stream electric current is very little, substantially can ignore.When there being thunderbolt event to occur, lightning current is very large, and difference stream electric current is now very large.Therefore processor carries out real-time monitoring to the difference stream electric current that current transformer collects, and when described difference stream current value exceedes default threshold value, then judges that thunderbolt event occurs.Meanwhile, Control director indicates the position that thunderbolt event occurs.Due to lightning stroke detecting device provided by the present invention, the fault current when the event of thunderbolt occurs and between normal current difference obvious, therefore, it is possible to indicate lightning fault more accurately, sensitivity is higher.
As shown in Figure 2, this device comprises the structured flowchart of the another kind of embodiment of lightning stroke detecting device provided by the present invention:
Current transformer 21, for gathering the current differential of the transmission pressure being positioned at insulator chain both sides, as described difference stream electric current;
The wire of tower insulation substring both sides arranges a current transformer respectively, and its secondary terminals is connected into poor stream mode, monitors the current differential be positioned on the transmission pressure of insulator chain both sides, i.e. difference current.Under normal circumstances, this difference stream electric current is very little, substantially can ignore.If but when having lightning discharge to occur herein, then lightning current will be very large.
Processor 22, for monitoring the difference stream electric current that described current transformer collects, when described difference stream current value exceedes default threshold value, judges that thunderbolt event occurs;
Described processor 22 has the device coding corresponding with the check point of described processor 22 installation site, may correspond to the pylon No. of write installation site.
Indicator 23, during for judging that described thunderbolt event occurs when described processor, the check point that described thunderbolt event occurs sends indicator signal;
Particularly, described indicator 23 can be one or more LED light.When described thunderbolt event occurs, pilot lamp glimmers within default instruction time, its identification distance, and about 1000 meters of get final product identification.After exceeding described default instruction time, automatically reset.
Storer 24, for when described processor 23 judges that described thunderbolt event occurs, stores lightning current information, and described lightning current information comprises the waveform of electric current when described thunderbolt event occurs, maximum amplitude and time of origin;
Receiving terminal 25, for carrying out alternately, sending the instruction of the lightning current information of inquiry first monitoring point to processor 22, by described device coding with described processor 22, identify the first processor corresponding with described first monitoring point, receive the lightning current information that described first processor sends; Described receiving terminal 25 also controls for sending the instruction that described indicator 23 stops sending indicator signal;
Receiving terminal 25 can select hand-held receiving terminal, can send the lightning current information that instruction query storer 24 stores, comprise the information such as amplitude of lightning current and time of origin, and this information be saved in receiving terminal 25 by receiving terminal 25 user.In addition, data can also be passed to PC by interface and process by receiving terminal 25.
This receiving terminal 25 by the device coding of recognition processor 22, can select the lightning current information receiving certain processor.
Receiving terminal 25 can also send the disconnection of instruction Control director.Particularly, user makes the pilot lamp glimmered within default instruction time extinguish by terminal transmission instruction.
Particularly, this receiving terminal 25 can adopt lithium battery power supply in outdoor, and 220V can be adopted in indoor to charge.
Display 26, shows for the lightning current information received described receiving terminal 25;
Power supply 27, powers with indicator 23 for giving described processor 22;
Power supply 27 can by current transformer from power taking transmission line wire, specifically can coil and stabilized voltage supply can form by getting, getting coil to be that open-close type is arranged on transmission pressure, and obtain electric current by electromagnetic induction principle, electric current is again through the DC voltage of stabilized voltage supply stable output.
As shown in Figure 3, current transformer 1 and current transformer 3 adopt open-close type mutual inductor to the scheme of installation of lightning stroke detecting device provided by the present invention, are arranged on respectively on the wire 7 of transmission circuit insulator string 6 both sides by preformed armor rods.
It is inner that described processor and stabilized voltage supply can be arranged on can 4, and described can is fixed on described transmission line of electricity by preformed armor rods.Pilot lamp 5 can be arranged on can shell, also can be arranged on wire.
Get and can be arranged on transmission pressure by coil 2 open-close type.Certainly, get and also can be merged into an one-piece construction with current transformer and be installed on transmission pressure by coil 2.
Lightning stroke detecting device provided by the present invention, by the difference stream electric current of the transmission pressure at current transformer acquisition testing point two ends, under normal circumstances, this difference stream electric current is very little, substantially can ignore.When there being thunderbolt event to occur, lightning current is very large, and difference stream electric current is now very large.Therefore processor carries out real-time monitoring to the difference stream electric current that current transformer collects, and when described difference stream current value exceedes default threshold value, then judges that thunderbolt event occurs.Meanwhile, Control director indicates the position that thunderbolt event occurs.Because between the fault current of lightning stroke detecting device provided by the present invention when the event of thunderbolt occurs and normal current, difference is obvious, can accurately indicate lightning fault each time under monitoring variable selects rational situation, sensitivity is higher.
What lightning stroke detecting device of the prior art had is blasting arrangement, there is certain potential safety hazard.Colour wafts after flag, colored ribbon etc. are blown out and may affect to the safe operation of circuit.And such device is generally single use device, after lightning impulse current makes device action, inner structure starts the flag colored ribbon that wafts etc. and obviously identifies, and these mark majorities can not restore or need to recover manually, and therefore device generally can not be reused or be not easy to reuse.
And the indicator in the present embodiment have employed the mode that pilot lamp carries out flicker instruction, there is no explosion mechanism, there is not potential safety hazard.And pilot lamp can preset instruction time, can automatically reset after instruction time, there is the function repeating to indicate.
In addition, from battery, solar powered different, in the present embodiment, power supply is taken from wire and is powered, more reliably.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiment, between each embodiment same or similar part mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a lightning stroke detecting device, is characterized in that, comprising:
Current transformer, for the difference stream electric current of the transmission pressure at acquisition testing point two ends;
Processor, for monitoring the difference stream electric current that described current transformer collects, when described difference stream current value exceedes default threshold value, judges that thunderbolt event occurs;
Indicator, during for judging that described thunderbolt event occurs when described processor, the check point that described thunderbolt event occurs sends indicator signal.
2. lightning stroke detecting device as claimed in claim 1, is characterized in that, the difference stream electric current that described current transformer is used for the transmission pressure at acquisition testing point two ends comprises:
Described current transformer specifically for, gather and be positioned at the current differential of the transmission pressure of insulator chain both sides, as described difference stream electric current.
3. lightning stroke detecting device as claimed in claim 1, it is characterized in that, described processor has the device coding corresponding with the check point of described processor installation site.
4. lightning stroke detecting device as claimed in claim 1, it is characterized in that, described indicator is one or more LED light, and when described thunderbolt event occurs, pilot lamp glimmers within default instruction time, after exceeding described default instruction time, automatically resets.
5. lightning stroke detecting device as claimed in claim 1, is characterized in that, also comprise:
Storer, during for judging that described thunderbolt event occurs at described processor, stores lightning current information, and described lightning current information comprises the waveform of electric current when described thunderbolt event occurs, maximum amplitude and time of origin.
6. the lightning stroke detecting device as described in claim 3 or 5, is characterized in that, also comprises:
Receiving terminal, for carrying out alternately with described processor, send the instruction of the lightning current information of inquiry first monitoring point to processor, by described device coding, identify the first processor corresponding with described first monitoring point, receive the lightning current information that described first processor sends; Described receiving terminal also controls for sending the instruction that described indicator stops sending indicator signal.
7. lightning stroke detecting device as claimed in claim 6, is characterized in that, also comprise:
Display, shows for the lightning current information received described receiving terminal.
8. lightning stroke detecting device as claimed in claim 1, is characterized in that, also comprise:
Power supply, powers for giving described processor and indicator.
9. lightning stroke detecting device as claimed in claim 8, it is characterized in that, described power supply comprises:
Getting can coil and stabilized voltage supply, described in get coil to be that open-close type is arranged on described transmission pressure or merges with described current transformer and is installed on described transmission pressure.
10. lightning stroke detecting device as claimed in claim 1, it is characterized in that, described processor is arranged on can inside, and described can is fixed on described transmission pressure by preformed armor rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410671041.3A CN104330706A (en) | 2014-11-20 | 2014-11-20 | Lightning stroke detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410671041.3A CN104330706A (en) | 2014-11-20 | 2014-11-20 | Lightning stroke detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104330706A true CN104330706A (en) | 2015-02-04 |
Family
ID=52405469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410671041.3A Pending CN104330706A (en) | 2014-11-20 | 2014-11-20 | Lightning stroke detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104330706A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202915A (en) * | 2017-07-19 | 2017-09-26 | 广州开能电气实业有限公司 | A kind of Novel lightning-proof is without line number device for picking |
| CN111487557A (en) * | 2020-03-26 | 2020-08-04 | 深圳市普威技术有限公司 | DS L circuit lightning stroke detection statistical circuit |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05264637A (en) * | 1992-03-17 | 1993-10-12 | Ngk Insulators Ltd | Device for detecting disconnection of strand of overhead earth-wire |
| CN1667425A (en) * | 2004-03-12 | 2005-09-14 | Lg电线有限公司 | Device for checking faulty component in the overhead transmission line or lightning stroke |
| CN1670536A (en) * | 2004-03-17 | 2005-09-21 | 四川康姆逊电磁防护有限责任公司 | Lightning stroke detection and warning system |
| JP2005257679A (en) * | 2004-03-12 | 2005-09-22 | Lg Cable Ltd | Lightning strike and accident position detector in worked transmission line |
| CN101216524A (en) * | 2008-01-08 | 2008-07-09 | 国网武汉高压研究院 | 1000KV alternating-current ultrahigh voltage transmission lines earth fault positioning technology and apparatus |
| JP2009020073A (en) * | 2007-07-13 | 2009-01-29 | Chugoku Electric Power Co Inc:The | Lightning occurrence indicator |
| CN101592691A (en) * | 2008-05-30 | 2009-12-02 | 王巨丰 | Transmission line thunderbolt, counterattack arbiter |
| CN203326583U (en) * | 2013-05-21 | 2013-12-04 | 上海华典新能源科技有限公司 | Monitoring and protecting device of electric power device |
-
2014
- 2014-11-20 CN CN201410671041.3A patent/CN104330706A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05264637A (en) * | 1992-03-17 | 1993-10-12 | Ngk Insulators Ltd | Device for detecting disconnection of strand of overhead earth-wire |
| CN1667425A (en) * | 2004-03-12 | 2005-09-14 | Lg电线有限公司 | Device for checking faulty component in the overhead transmission line or lightning stroke |
| JP2005257679A (en) * | 2004-03-12 | 2005-09-22 | Lg Cable Ltd | Lightning strike and accident position detector in worked transmission line |
| CN1670536A (en) * | 2004-03-17 | 2005-09-21 | 四川康姆逊电磁防护有限责任公司 | Lightning stroke detection and warning system |
| JP2009020073A (en) * | 2007-07-13 | 2009-01-29 | Chugoku Electric Power Co Inc:The | Lightning occurrence indicator |
| CN101216524A (en) * | 2008-01-08 | 2008-07-09 | 国网武汉高压研究院 | 1000KV alternating-current ultrahigh voltage transmission lines earth fault positioning technology and apparatus |
| CN101592691A (en) * | 2008-05-30 | 2009-12-02 | 王巨丰 | Transmission line thunderbolt, counterattack arbiter |
| CN203326583U (en) * | 2013-05-21 | 2013-12-04 | 上海华典新能源科技有限公司 | Monitoring and protecting device of electric power device |
Non-Patent Citations (1)
| Title |
|---|
| 刘先进等: "差动式线路故障指示器的研究", 《高电压技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202915A (en) * | 2017-07-19 | 2017-09-26 | 广州开能电气实业有限公司 | A kind of Novel lightning-proof is without line number device for picking |
| CN111487557A (en) * | 2020-03-26 | 2020-08-04 | 深圳市普威技术有限公司 | DS L circuit lightning stroke detection statistical circuit |
| CN111487557B (en) * | 2020-03-26 | 2022-07-05 | 深圳市普威技术有限公司 | DSL circuit lightning stroke detection statistical circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2878058B1 (en) | System for detecting a falling electric power conductor and related methods | |
| CN201637791U (en) | Online monitoring system for high-voltage shunt capacitor | |
| CN103529348B (en) | A kind of high tension cable fault monitoring method | |
| CN109507528A (en) | A kind of 10kV overhead transmission line lightning-caused breaking warning device based on fault current detection | |
| CN104360238A (en) | Lightning stroke detection method of electric transmission line | |
| CN104330706A (en) | Lightning stroke detector | |
| CN206301013U (en) | Box-type substation cable leakage detects warning device | |
| CN202676797U (en) | Arc extinction resonance extinction and overvoltage protection device on-line monitoring system | |
| CN102509436A (en) | Remote online monitoring system for grounding condition of transmission line tower | |
| CN204597453U (en) | Electric prospection switch | |
| CN104700541B (en) | A kind of anti-theft detection method based on road lighting cable | |
| CN103278733A (en) | Cable ground connection remote monitoring method and remote monitoring system | |
| CN208753985U (en) | Intelligent lightning protection device and the lightning protection box for protecting three-phase circuit | |
| CN102495323A (en) | Lightning flashover indicator | |
| CN202041612U (en) | Automatic locating device for earth faults of electricity transmission lines | |
| CN109066551A (en) | A kind of power transmission circuit caused by windage warning device | |
| CN204694795U (en) | Surge arrester failure indicating circuit | |
| CN209311585U (en) | A kind of lightning protection on-Line Monitor Device | |
| CN104297587B (en) | A kind of direct-current transmission converter valve lightning arrester monitoring device and monitoring method | |
| CN205826798U (en) | A kind of transmission line lightning stroke monitoring system | |
| CN209231445U (en) | A kind of arrester ground fault monitoring device based on Internet of Things Network Communication | |
| CN208399621U (en) | A kind of partial pressure type electric detonation tube detection device | |
| CN203350346U (en) | Potential indicator with temperature measuring function | |
| CN206960545U (en) | A kind of transformer station's lightning impulse prior-warning device | |
| CN206470352U (en) | A kind of socket short-circuit detecting device and 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150204 |
|
| RJ01 | Rejection of invention patent application after publication |