CN106019085A - Whistling type fault indicator for 10kV line - Google Patents
Whistling type fault indicator for 10kV line Download PDFInfo
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- CN106019085A CN106019085A CN201610466741.8A CN201610466741A CN106019085A CN 106019085 A CN106019085 A CN 106019085A CN 201610466741 A CN201610466741 A CN 201610466741A CN 106019085 A CN106019085 A CN 106019085A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
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- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a whistling type fault indicator for a 10kV line. The whistling type fault indicator for the 10kV line comprises a foundation, a clamping device, a monitoring device and an alarm device, wherein the foundation is fixed with a casing, the casing is internally fixed with the monitoring device and the alarm device, the foundation is connected with the clamping device, and the clamping device is fixed below the foundation through a screw. The whistling type fault indicator is advantaged in that a fault line and a fault point can be accurately determined, properties of stable performance, high precision, strong anti-interference capability, attractive appearance and convenient mounting are realized, the whistling type fault indicator is rapid to start, and start can be realized within 0.1 second; service life is long, and a motor can be switched on and off for more than 100000 times without damage; automatic reset can be realized; after power supply of the line recovers, the fault indicator can reset automatically, the reset time is short, and automatic reset can be realized within 0.1 second; live-line loading and unloading can be realized; live-line loading and unloading are quite simple, and line operation is not influenced; technical means is provided for searching hidden fault points; the fault line and the fault point can be rapidly determined, and the fault elimination time is shortened.
Description
Technical field
The present invention relates to a kind of 10kV circuit formula indicating fault instrument of blowing a whistle, it is adaptable to be easy to search quickly and easily the position of fault when faults such as 10kV line short or ground connection.Specifically, relate to formula of blowing a whistle line fault indicator when breaking down on a kind of power transmission lines, belong to power construction auxiliary equipment field.
Background technology
At present, the line fault indicator installed on 10kV circuit is the indicating fault instrument of a kind of flashing type, when 10kV circuit is short-circuited or during ground connection, indicating fault instrument judges on circuit A, B, C three-phase whether fault according to size of current, when electric current exceedes setting value, the display lamp of line fault indicator reddens and flashes, and power supply personnel are according to the lamp failure judgement position of indicating fault instrument.
Along with socioeconomic development, whole nation power load sustainable growth, especially in distribution network system, lines branch is more and more, ruuning situation is complicated, the situation of line short or ground connection happens occasionally, after breaking down, existing line fault indicator display lamp can redden chromatic flicker, night easily inquires about, but is not easy to search trouble point because of light problem daytime, brings no small difficulty to service work, especially remote districts, search to get up to waste time and energy especially, have impact on power supply reliability, produce the biggest loss brought with household electricity to enterprise.
Summary of the invention
The technical problem to be solved in the present invention is for above not enough, a kind of 10kV circuit formula indicating fault instrument of blowing a whistle is provided, this indicating fault instrument has when power line short-circuit or ground connection can send sound of blowing a whistle, and decibel, between 65-85, starts and resetting time is short, service life is long, being easy to line work personnel and understand fault section quickly and easily, fault section is opened in segmentation, thus recovers the power supply of fault-free section in time, can save the substantial amounts of working time, reduce power off time and the advantage of power failure range.
For solving above-mentioned technical problem, the technical scheme is that
A kind of 10kV circuit formula indicating fault instrument of blowing a whistle, including base, card line apparatus, monitoring device and alarm device.
The following is and the further of such scheme is optimized:
Being fixed with shell on described base, be fixed with monitoring device and alarm device in shell, base is connected with card line apparatus, and card line apparatus is screwed in the lower section of base.
Described monitoring device is made up of sensor, control circuit, auxiliary line, and the cell winding of sensor is connected with card line apparatus, and sensor is electrically connected with control circuit, controls circuit and electrically connects with auxiliary line.
Described alarm device is made up of loudspeaker, alarm lamp and motor, and motor controls its switch by controlling circuit, and motor provides loudspeaker and the power of alarm lamp operating.
Described control circuit includes chip STC89C52, the P of chip STC89C521Port connects chip 7406, and six ports of chip 7406 are connected to power tube VF1, power tube VF2, power tube VF3, power tube VF4, power tube VF5With power tube VF6, power tube VF1, power tube VF2, power tube VF3, power tube VF4, power tube VF5With power tube VF6Respectively with power supply U1Connect；
Power tube VF1With resistance R1In parallel, power tube VF2With resistance R2In parallel, power tube VF3With resistance R3In parallel, power tube VF4With resistance R4In parallel, power tube VF5With resistance R5In parallel, power tube VF6With resistance R6In parallel；
Power tube VF1With power tube VF4It is connected with the A end of motor, power tube VF3With power tube VF6It is connected with the B end of motor, power tube VF5With power tube VF2It is connected with the C end of motor；
Resistance R1, resistance R3With resistance R5Two ends respectively with power supply U1Connect with chip 7406.
The P of described chip STC89C522End connects the signal end H having sensor 51、H2And H3, H1With resistance R9The P of chip STC89C52 it is connected to after parallel connection2End, H2With resistance R8The P of chip STC89C52 it is connected to after parallel connection2End, H3With resistance R7The P of chip STC89C52 it is connected to after parallel connection2End；
Described resistance R7, resistance R8With resistance R9One end connection away from chip STC89C52 has power supply U2。
The P of described chip STC89C520End connection has digital to analog converter AD558, digital to analog converter AD558 to pass sequentially through resistance R after being changed by the signal from chip STC89C5210With DC12V relay K A1Being connected to the input of operational amplifier LM324, operational amplifier LM324 is parallel with electric capacity C11DC12V relay K A1By resistance R11Ground connection.
Another input of described operational amplifier LM324 connects electric capacity C2With fuse FU1, electric capacity C2With fuse FU1The input of operational amplifier LM324, fuse FU it is linked into after parallel connection1The other end by resistance R14Connect and have power supply U2, electric capacity C2The other end connect have resistance R12, resistance R12The other end be connected to power tube VF1, power tube VF2, power tube VF3, power tube VF4, power tube VF5, power tube VF6, resistance R13With tri-ports of A, B, C of motor, resistance R13With resistance R12The one end connected is also associated with power tube VF1, power tube VF2, power tube VF3, power tube VF4, power tube VF5, power tube VF6With tri-ports of A, B, C of motor, resistance R13The other end by DC12V relay K A2Ground connection；
The outfan of described operational amplifier LM324 is connected to resistance R4, resistance R6With resistance R2, resistance R4, resistance R6With resistance R2Two ends be connected to operational amplifier LM324 and chip 7406.
Described auxiliary line includes that the positive pole connection of DC source DC12V, DC source DC12V has fuse FU2, fuse FU2The other end be connected to travel switch SQ1With travel switch SQ2, travel switch SQ1With DC12V relay serializer KA1Series connection, travel switch SQ2With DC12V relay serializer KA2Series connection；
Described travel switch SQ1With DC12V relay serializer KA1, travel switch SQ2With DC12V relay serializer KA2After parallel connection respectively with negative pole and the fuse FU of DC source DC12V2Connect.
The present invention uses above technical scheme, compared with prior art, has the advantage that
1, energy accurately failure judgement circuit and trouble point, has the features such as stable performance, precision is high, capacity of resisting disturbance is strong, aesthetic in appearance, easy for installation；
2, indicating fault instrument starts fast, can start in 0.1 second；Service life is long, it is ensured that motor switch does not damages for more than 100,000 times；
3, automatically reseting: after circuit restores electricity, fault detector can automatically reset, and resetting time is short, can automatically reset in 0.1 second.
4, charged handling: charged handling are extremely simple, do not affect circuit and run.
5, technological means is provided for lookup Hidden Fault Probability point.
6, indicate rapidly faulty line and trouble point, shorten troubleshooting time.
7, avoid conventional multi to operate a switch impact that line walking brings to power equipment.
The present invention is described in detail with embodiment below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Accompanying drawing 1 is the front view of formula indicating fault instrument of blowing a whistle in the embodiment of the present invention；
Accompanying drawing 2 is the circuit theory diagrams controlling circuit in accompanying drawing 1；
Accompanying drawing 3 is the circuit theory diagrams of auxiliary line in accompanying drawing 1；
Accompanying drawing 4 be the present invention actually used time blow a whistle the scheme of installation of formula indicating fault instrument；
In figure,
1-base, 2-card line apparatus, 3-monitoring device, 4-alarm device, 5-sensor, 6-controls circuit, 7-auxiliary line, 8-loudspeaker, 9-alarm lamp, 10-motor, 11-shell, 12-cell winding.
Detailed description of the invention
In order to the technical characteristic of the present invention, purpose and effect are more clearly understood from, the now detailed description of the invention of the comparison accompanying drawing explanation present invention.
Embodiment, as shown in accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3, a kind of 10kV circuit formula indicating fault instrument of blowing a whistle includes base 1, card line apparatus 2, monitoring device 3 and alarm device 4.
Being fixed with shell 11 on base 1, be fixed with monitoring device 3 and alarm device 4 in shell 11, base 1 is connected with card line apparatus 2, and card line apparatus 2 is screwed in the lower section of base 1, and card line apparatus 2 is fixed on 10kV line conductor.
Monitoring device 3 is made up of sensor 5, control circuit 6, auxiliary line 7, and the cell winding 12 of sensor 5 is connected with card line apparatus 2, and sensor 5 is electrically connected with control circuit 6, controls circuit 6 and electrically connects with auxiliary line 7.
Alarm device 4 is made up of loudspeaker 8, alarm lamp 9 and motor 10, and motor 10 controls its switch by controlling circuit 6, and motor 10 provides loudspeaker 8 and the power of alarm lamp 9 operating.
Control circuit 6 and include chip STC89C52, the P of chip STC89C521Port connects chip 7406, and six ports of chip 7406 are connected to power tube VF1, power tube VF2, power tube VF3, power tube VF4, power tube VF5With power tube VF6, power tube VF1, power tube VF2, power tube VF3, power tube VF4, power tube VF5With power tube VF6Respectively with power supply U1Connect；
Power tube VF1With resistance R1In parallel, power tube VF2With resistance R2In parallel, power tube VF3With resistance R3In parallel, power tube VF4With resistance R4In parallel, power tube VF5With resistance R5In parallel, power tube VF6With resistance R6In parallel；
Power tube VF1With power tube VF4It is connected with the A end of motor 10, power tube VF3With power tube VF6It is connected with the B end of motor 10, power tube VF5With power tube VF2It is connected with the C end of motor 10；
Resistance R1, resistance R3With resistance R5Two ends respectively with power supply U1Connect with chip 7406；
The P of chip STC89C522End connects the signal end H having sensor 51、H2And H3, H1With resistance R9The P of chip STC89C52 it is connected to after parallel connection2End, H2With resistance R8The P of chip STC89C52 it is connected to after parallel connection2End, H3With resistance R7The P of chip STC89C52 it is connected to after parallel connection2End；
Resistance R7, resistance R8With resistance R9One end connection away from chip STC89C52 has power supply U2；
The P of chip STC89C520End connection has digital to analog converter AD558, digital to analog converter AD558 to pass sequentially through resistance R after being changed by the signal from chip STC89C5210With DC12V relay K A1Being connected to the input of operational amplifier LM324, operational amplifier LM324 is parallel with electric capacity C11DC12V relay K A1By resistance R11Ground connection；
Another input of operational amplifier LM324 connects electric capacity C2With fuse FU1, electric capacity C2With fuse FU1The input of operational amplifier LM324, fuse FU it is linked into after parallel connection1The other end by resistance R14Connect and have power supply U2, electric capacity C2The other end connect have resistance R12, resistance R12The other end be connected to power tube VF1, power tube VF2, power tube VF3, power tube VF4, power tube VF5, power tube VF6, resistance R13With tri-ports of A, B, C of motor 10, resistance R13With resistance R12The one end connected is also associated with power tube VF1, power tube VF2, power tube VF3, power tube VF4, power tube VF5, power tube VF6With tri-ports of A, B, C of motor 10, resistance R13The other end by DC12V relay K A2Ground connection；
The outfan of operational amplifier LM324 is connected to resistance R4, resistance R6With resistance R2, resistance R4, resistance R6With resistance R2Two ends be connected to operational amplifier LM324 and chip 7406.
Auxiliary line 7 includes that the positive pole connection of DC source DC12V, DC source DC12V has fuse FU2, fuse FU2The other end be connected to travel switch SQ1With travel switch SQ2, travel switch SQ1With DC12V relay serializer KA1Series connection, travel switch SQ2With DC12V relay serializer KA2Series connection；
Travel switch SQ1With DC12V relay serializer KA1, travel switch SQ2With DC12V relay serializer KA2After parallel connection respectively with negative pole and the fuse FU of DC source DC12V2Connect.
As shown in Figure 4, by indicating fault instrument A1-A12It is installed on 10kV circuit, when 10kV circuit is short-circuited or during the fault such as ground connection, the phase-sequence current that breaks down can be uprushed, at this moment cell winding 12 receives the change information of electric current, sensor 5 is passed to by sensor line 12, sensor 5 is applied on motor 10 by controlling circuit 6, motor 10 action, loudspeaker 8 sounding and alarm lamp 9 is driven to flash, indicating fault instrument sends blow a whistle sound and light flash, tour personnel can quickly rush for the position of fault according to the light of sound and flicker, distinguish abort situation by this device simultaneously, hidden danger is processed in time.
The resolution of trouble point: when line failure, indicating fault instrument flashes and reports to the police, such as A2、A3、A5、A6、A7、A9Number indicating fault instrument because of line fault, no current by and report to the police, and other indicating fault instrument are not reported to the police, and show that trouble point is at A8、A9Number indicating fault instrument and A11、A12On circuit between number indicating fault instrument.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, it is not limited to the present invention, although the present invention being described in detail with reference to previous embodiment, for a person skilled in the art, technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent.All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (9)
1. a 10kV circuit formula indicating fault instrument of blowing a whistle, it is characterised in that: include base (1), card line apparatus (2), monitoring device (3) and alarm device (4).
2. a kind of 10kV circuit formula indicating fault instrument of blowing a whistle as claimed in claim 1, it is characterized in that: on described base (1), be fixed with shell (11), monitoring device (3) and alarm device (4) it is fixed with in shell (11), base (1) is connected with card line apparatus (2), and card line apparatus (2) is screwed in the lower section of base (1).
3. a kind of 10kV circuit formula indicating fault instrument of blowing a whistle as claimed in claim 1, it is characterized in that: described monitoring device (3) is made up of sensor (5), control circuit (6), auxiliary line (7), the cell winding (12) of sensor (5) is connected with card line apparatus (2), sensor (5) is electrically connected with control circuit (6), controls circuit (6) and electrically connects with auxiliary line (7).
4. a kind of 10kV circuit formula indicating fault instrument of blowing a whistle as claimed in claim 1, it is characterized in that: described alarm device (4) is made up of loudspeaker (8), alarm lamp (9) and motor (10), motor (10) controls its switch by controlling circuit (6), and motor (10) provides the power that loudspeaker (8) and alarm lamp (9) operate.
5. a kind of 10kV circuit formula indicating fault instrument of blowing a whistle as claimed in claim 3, it is characterised in that: described control circuit includes chip STC89C52, the P of chip STC89C521Port connects chip 7406, and six ports of chip 7406 are connected to power tube VF1, power tube VF2, power tube VF3, power tube VF4, power tube VF5With power tube VF6, power tube VF1, power tube VF2, power tube VF3, power tube VF4, power tube VF5With power tube VF6Respectively with power supply U1Connect；
Described power tube VF1With resistance R1In parallel, power tube VF2With resistance R2In parallel, power tube VF3With resistance R3In parallel, power tube VF4With resistance R4In parallel, power tube VF5With resistance R5In parallel, power tube VF6With resistance R6In parallel；
Described power tube VF1With power tube VF4It is connected with the A end of motor, power tube VF3With power tube VF6It is connected with the B end of motor, power tube VF5With power tube VF2It is connected with the C end of motor；
Described resistance R1, resistance R3With resistance R5Two ends respectively with power supply U1Connect with chip 7406.
6. a kind of 10kV circuit formula indicating fault instrument of blowing a whistle as claimed in claim 5, it is characterised in that: the P of described chip STC89C522End connects the signal end H having sensor 51、H2And H3, H1With resistance R9The P of chip STC89C52 it is connected to after parallel connection2End, H2With resistance R8The P of chip STC89C52 it is connected to after parallel connection2End, H3With resistance R7The P of chip STC89C52 it is connected to after parallel connection2End；
Described resistance R7, resistance R8With resistance R9One end connection away from chip STC89C52 has power supply U2。
7. a kind of 10kV circuit formula indicating fault instrument of blowing a whistle as claimed in claim 6, it is characterised in that: the P of described chip STC89C520End connection has digital to analog converter AD558, digital to analog converter AD558 to pass sequentially through resistance R after being changed by the signal from chip STC89C5210With DC12V relay K A1Being connected to the input of operational amplifier LM324, operational amplifier LM324 is parallel with electric capacity C11DC12V relay K A1By resistance R11Ground connection.
8. a kind of 10kV circuit formula indicating fault instrument of blowing a whistle as claimed in claim 7, it is characterised in that: another input of described operational amplifier LM324 connects electric capacity C2With fuse FU1, electric capacity C2With fuse FU1The input of operational amplifier LM324, fuse FU it is linked into after parallel connection1The other end by resistance R14Connect and have power supply U2, electric capacity C2The other end connect have resistance R12, resistance R12The other end be connected to power tube VF1, power tube VF2, power tube VF3, power tube VF4, power tube VF5, power tube VF6, resistance R13With tri-ports of A, B, C of motor, resistance R13With resistance R12The one end connected is also associated with power tube VF1, power tube VF2, power tube VF3, power tube VF4, power tube VF5, power tube VF6With tri-ports of A, B, C of motor, resistance R13The other end by DC12V relay K A2Ground connection；
The outfan of described operational amplifier LM324 is connected to resistance R4, resistance R6With resistance R2, resistance R4, resistance R6With resistance R2Two ends be connected to operational amplifier LM324 and chip 7406.
9. a kind of 10kV circuit formula indicating fault instrument of blowing a whistle as claimed in claim 3, it is characterised in that: described auxiliary line includes that the positive pole connection of DC source DC12V, DC source DC12V has fuse FU2, fuse FU2The other end be connected to travel switch SQ1With travel switch SQ2, travel switch SQ1With DC12V relay serializer KA1Series connection, travel switch SQ2With DC12V relay serializer KA2Series connection；
Described travel switch SQ1With DC12V relay serializer KA1, travel switch SQ2With DC12V relay serializer KA2After parallel connection respectively with negative pole and the fuse FU of DC source DC12V2Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610466741.8A CN106019085A (en) | 2016-06-24 | 2016-06-24 | Whistling type fault indicator for 10kV line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610466741.8A CN106019085A (en) | 2016-06-24 | 2016-06-24 | Whistling type fault indicator for 10kV line |
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| Publication Number | Publication Date |
|---|---|
| CN106019085A true CN106019085A (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610466741.8A Pending CN106019085A (en) | 2016-06-24 | 2016-06-24 | Whistling type fault indicator for 10kV line |
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Citations (8)
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| US3771049A (en) * | 1971-01-05 | 1973-11-06 | Dossert Mfg Corp | Fault indicator and locator for buried cables and zero sequence current sensing device |
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2016
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|---|---|---|---|---|
| US3771049A (en) * | 1971-01-05 | 1973-11-06 | Dossert Mfg Corp | Fault indicator and locator for buried cables and zero sequence current sensing device |
| CN201060249Y (en) * | 2007-06-06 | 2008-05-14 | 赵红羽 | High-performance electric power line fault indicator |
| CN201522540U (en) * | 2009-11-05 | 2010-07-07 | 广州智方自动化科技有限公司 | Overhead electric power line failure indicator |
| CN202351370U (en) * | 2011-11-09 | 2012-07-25 | 思源电气股份有限公司 | Fault indicator for overhead lines |
| CN203950005U (en) * | 2014-02-12 | 2014-11-19 | 珠海创能科世摩电气科技有限公司 | Multi-functional overhead transmission line fault monitoring system |
| CN104007362A (en) * | 2014-05-12 | 2014-08-27 | 国家电网公司 | Pole and tower power transmission line fault indicator |
| CN104375060A (en) * | 2014-11-28 | 2015-02-25 | 国家电网公司 | Fault indicator |
| CN205038289U (en) * | 2015-09-23 | 2016-02-17 | 江苏银网电气股份有限公司 | Built on stilts type band -pass letter ground connection short circuit collector |
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Application publication date: 20161012 |