CN102508012A - Alternating-current high-voltage wire monitoring device and method - Google Patents
Alternating-current high-voltage wire monitoring device and method Download PDFInfo
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- CN102508012A CN102508012A CN2011103790338A CN201110379033A CN102508012A CN 102508012 A CN102508012 A CN 102508012A CN 2011103790338 A CN2011103790338 A CN 2011103790338A CN 201110379033 A CN201110379033 A CN 201110379033A CN 102508012 A CN102508012 A CN 102508012A
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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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- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/54—Testing for continuity
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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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
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- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses an alternating-current high-voltage wire monitoring device and a method. The device comprises a detecting electrode, a sensing device and a controller, the detecting electrode is arranged at a preset distance from an alternating-current high-voltage wire and used for forming capacitance with the wire, the sensing device is used for being connected with the detecting electrode and inducing alternating-current high voltage by the aid of the capacitance to acquire sensing signals, and the controller is connected with the sensing device and used for judging whether the sensing signals meet preset conditions or not and outputting alarm signals when the sensing signals do not meet the preset conditions. By the aid of the alternating-current high-voltage wire monitoring device and the method, the alternating-current high-voltage wire is monitored in real time, the alarm signals are outputted when the monitoring signals do not meet the preset conditions, and accordingly staffs can determine disconnection of the alternating-current high-voltage wire to timely repair the alternating-current high-voltage wire.
Description
Technical field
The present invention relates to power domain, in particular to a kind of monitoring device and method of ac high-voltage electric wire.
Background technology
The anti-climb system of some high-tension units such as enclosure wall, static discharge device etc. are that high pressure is added on one section electric wire or the wire electrode; In use; If electric wire or wire electrode rupture, just the high-tension unit cisco unity malfunction, therefore; When electric wire or wire electrode generation fracture, need the staff in time to handle.
Can not in time handle the problem that the ac high-voltage electric wire breaks off to staff in the correlation technique, not propose effective solution at present as yet.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of monitoring device and method of ac high-voltage electric wire, can not in time handle the problem that the ac high-voltage electric wire breaks off to solve the staff.
To achieve these goals, according to a further aspect in the invention, a kind of monitoring device of ac high-voltage electric wire is provided.
Monitoring device according to ac high-voltage electric wire of the present invention comprises: exploring electrode, be arranged at and the position of ac high-voltage electric wire at a distance of predeterminable range, and be used for forming electric capacity with electric wire; Induction installation is connected with exploring electrode, and the capacitive sensing ac high-voltage that is used for forming through exploring electrode and electric wire is to obtain induced signal; Controller is connected with induction installation, and it is pre-conditioned to be used to judge whether induced signal satisfies, and does not satisfy when pre-conditioned output alarm signal at induced signal.
Further, induction installation is a resistance, and first end of this resistance is connected with exploring electrode, and the second end ground connection is used to form induced voltage.
Further, this monitoring device also comprises: impact damper, and first end is connected with resistance, and second end is connected with controller.
Further, controller comprises: computing unit is used to calculate induced voltage; Judging unit is used to judge whether induced voltage is lower than preset value; And performance element, be used for when induced voltage is lower than preset value output alarm signal.
Further, computing unit adopts following formula to calculate induced voltage:
Wherein, R is a resistance, and U is the alternating voltage on the electric wire, and f is the frequency of alternating voltage, V
RBe the voltage of resistance, i.e. induced voltage, C is the electric capacity between exploring electrode and the electric wire.
Further, this device also comprises: alarm, be connected with controller, and be used for reporting to the police according to alerting signal.
To achieve these goals, according to an aspect of the present invention, a kind of monitoring method of ac high-voltage electric wire is provided.
Monitoring method according to ac high-voltage electric wire of the present invention comprises: the capacitive sensing ac high-voltage that forms through ac high-voltage electric wire and exploring electrode is to obtain induced signal; It is pre-conditioned to judge whether induced signal satisfies; And do not satisfy when pre-conditioned at induced signal, send alerting signal.
Further, the capacitive sensing ac high-voltage that forms through ac high-voltage electric wire and exploring electrode comprises to obtain induced signal: form induced voltage.
Further, it is pre-conditioned to judge whether induced signal satisfies; And do not satisfy when pre-conditioned at induced signal, output alarm signal comprises: calculate induced voltage; Judge whether induced voltage is lower than preset value; And when induced voltage is lower than preset value, output alarm signal.
Further, adopt following formula to calculate induced voltage:
Wherein, R is a resistance, and U is the alternating voltage on the electric wire, and f is the frequency of alternating voltage, V
RBe the voltage of resistance, i.e. induced voltage, C is the electric capacity between exploring electrode and the electric wire.
Through the present invention, adopt the monitoring device of the ac high-voltage electric wire that comprises following structure: exploring electrode, be arranged at and the position of ac high-voltage electric wire at a distance of predeterminable range, be used for forming electric capacity with electric wire; Induction installation is connected with exploring electrode, is used for through this capacitive sensing ac high-voltage to obtain induced signal; Controller is connected with induction installation, and it is pre-conditioned to be used to judge whether induced signal satisfies; And do not satisfy when pre-conditioned at induced signal, output alarm signal is monitored the ac high-voltage electric wire in real time; And do not satisfy when pre-conditioned at monitor signal; Output alarm signal, so that the staff can confirm that according to reporting to the police the ac high-voltage electric wire breaks off, thus on-call maintenance; Solve the staff and can not in time handle the problem that the ac high-voltage electric wire breaks off, and then reached the effect of in time confirming and handle the disconnection of ac high-voltage electric wire.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the block diagram according to the monitoring device of the ac high-voltage electric wire of the embodiment of the invention;
Fig. 2 is the synoptic diagram according to the monitoring device of the ac high-voltage electric wire of the embodiment of the invention; And
Fig. 3 is the process flow diagram according to the monitoring method of the ac high-voltage electric wire of the embodiment of the invention.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the present invention.
Fig. 1 is the block diagram according to the monitoring device of the ac high-voltage electric wire of the embodiment of the invention, and is as shown in Figure 1, and this monitoring device comprises: exploring electrode 10, be arranged at and the position of ac high-voltage electric wire at a distance of predeterminable range, and be used for forming electric capacity with electric wire; Induction installation 30 is connected with exploring electrode 10, is used for through this capacitive sensing ac high-voltage to obtain induced signal; Controller 50 is connected with induction installation 30, and it is pre-conditioned to be used to judge whether induced signal satisfies, and does not satisfy when pre-conditioned output alarm signal at induced signal.
In this embodiment, through exploring electrode 10 is set near the ac high-voltage electric wire, so that exploring electrode 10 forms electric capacity with electric wire; And then through induction installation 30 induction ac high-voltages obtaining induced signal, and export this signal to controller 50, controller 50 is with this induced signal and pre-conditioned comparing; Wherein, pre-conditioned due characteristic when being ac high-voltage electric wire operate as normal, thereby; When this induced signal and pre-conditioned is not inconsistent; Explain that the ac high-voltage electric wire breaks off, this moment output alarm signal so that the staff in time handles the disconnection of electric wire.
In this embodiment, output alarm signal can comprise the signal of output control display display alarm information, perhaps controls the signal of alarm equipment alarm, and perhaps the signal that staff's electric wire breaks off is otherwise warned in output.
Preferably, this device also comprises: alarm, be connected with controller 50, and be used for reporting to the police according to alerting signal, do not satisfy when pre-conditioned at induced signal, controller control alarm equipment alarm number is so that the staff in time handles the disconnection of electric wire.
Fig. 2 is the synoptic diagram according to the monitoring device of the ac high-voltage electric wire of the embodiment of the invention, and is as shown in Figure 2, and the AB section is ac high-voltage electric wire or wire electrode, and the A end connects the high-field electrode of ac high voltage generator, and B is terminal.Between AB, establish any sensing point, comprise sensing point 1 in the drawings ..., n ..., points such as B.At each sensing point place, exploring electrode is set respectively, exploring electrode forms electric capacity near high-tension bus-bar or wire electrode between exploring electrode and high-tension bus-bar or wire electrode, and the electric capacity of this capacitor is C.Exploring electrode is connected with resistance R, and resistance R other end ground connection is used to respond to ac high-voltage and forms induced voltage.This induced voltage is through the buffer stage output of high input impedance, and high input impedance guarantees that induced voltage is not attenuated.
After controller receives the output voltage signal of impact damper; Calculate induced voltage through its computing unit, whether be lower than preset value through the judgment unit judges induced voltage, at last through performance element when induced voltage is lower than preset value; Carry out preset order; Wherein, this preset value is confirmed according to actual applying working condition, is preferably zero.
Wherein, computing unit adopts following method to calculate induced voltage:
Wherein, U is a High AC voltage, and f is the High AC voltage frequency, V
RBe the induced voltage on the resistance R, by buffer buffers output, this signal carried out buffered after, controller is reported to the police according to induced voltage or other control operation.
In the method, capacitor C, alternating voltage frequency f or resistance R are big more, the induced voltage signal V that detects
RBig more, therefore, the distance between exploring electrode and the high-tension bus-bar (silk) is good for discharge not taking place and can producing sufficiently high induced voltage.
In this embodiment, can detect the ac high-voltage electric wire in real time and whether break off, and when electric wire broke off, controller was reported to the police or other control operation, made situation so that the staff in time understands the AC high voltage lineman, break off thereby can in time handle electric wire.Whether rupture if only need judge high-tension bus-bar (silk), then only need endways B to establish at the place sensing point and get final product; Judge breakpoint if desired, then a plurality of sensing points need be set.Suppose that high-tension bus-bar or wire electrode rupture between n-1 point and n point, then each later sensing point of n point does not all have the high voltage induction signal, therefore can judge breakpoint interval of living in.
Fig. 3 is the process flow diagram according to the monitoring method of the ac high-voltage electric wire of the embodiment of the invention, and is as shown in Figure 3, and this method comprises that following step S102 is to step S106:
Step S102: the capacitive sensing ac high-voltage that forms through ac high-voltage electric wire and exploring electrode is to obtain induced signal.
Step S104: it is pre-conditioned to judge whether induced signal satisfies.
Step S106: do not satisfy when pre-conditioned output alarm signal at induced signal.
In this embodiment, near the ac high-voltage electric wire, exploring electrode is set, so that exploring electrode 1 electric wire forms electric capacity; Form induced signal through step S102 induction ac high-voltage, through step S104 with this induced signal and pre-conditioned comparing, wherein; Pre-conditioned due characteristic when being ac high-voltage electric wire operate as normal; Thereby, when this induced signal and pre-conditioned is not inconsistent, explain that the ac high-voltage electric wire breaks off; This moment output alarm signal so that the staff in time handles the disconnection of electric wire.
In this embodiment, output alarm signal can comprise the signal of output control display display alarm information, perhaps controls the signal that alarm is reported to the police, and perhaps the signal that staff's electric wire breaks off is otherwise warned in output.
Preferably, step S102 comprises: the capacitive sensing ac high-voltage that forms through ac high-voltage electric wire and exploring electrode is to obtain induced voltage, and step S104 and step S106 comprise: the calculating induced voltage; Judge whether induced voltage is lower than preset value; And when induced voltage is lower than preset value, output alarm signal.
Wherein, adopt following formula to calculate induced voltage:
Wherein, U is a High AC voltage, and f is the High AC voltage frequency, V
RBe the induced voltage on the resistance R, by buffer buffers output, this signal carried out buffered after, controller is reported to the police according to induced voltage or other control operation.
From above description; Can find out; The present invention has realized following technique effect: monitor the ac high-voltage electric wire in real time, and do not satisfy when pre-conditioned at monitor signal, send alerting signal; Break off so that the staff can in time know the ac high-voltage electric wire, thereby can when the ac high-voltage electric wire breaks off, in time handle.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the monitoring device of an ac high-voltage electric wire is characterized in that, comprising:
Exploring electrode is arranged at and the position of ac high-voltage electric wire at a distance of predeterminable range, is used for forming electric capacity with said electric wire;
Induction installation is connected with said exploring electrode, is used for through said capacitive sensing ac high-voltage to obtain induced signal; And
Controller is connected with said induction installation, and it is pre-conditioned to be used to judge whether said induced signal satisfies, and do not satisfy at said induced signal said when pre-conditioned, output alarm signal.
2. monitoring device according to claim 1 is characterized in that, said induction installation is a resistance, and first end of said resistance is connected with said exploring electrode, the second end ground connection of said resistance, and said resistance is used to form induced voltage.
3. monitoring device according to claim 2 is characterized in that, also comprises:
Impact damper, first end is connected with said resistance, and second end is connected with said controller.
4. according to claim 2 or 3 described monitoring devices, it is characterized in that said controller comprises:
Computing unit is used to calculate said induced voltage;
Judging unit is used to judge whether said induced voltage is lower than preset value; And
Performance element is used for when said induced voltage is lower than said preset value, exporting said alerting signal.
5. monitoring device according to claim 4 is characterized in that, said computing unit adopts following formula to calculate said induced voltage:
Wherein, R is said resistance, V
RBe the voltage of said resistance, promptly said induced voltage, U are the alternating voltage on the electric wire, and f is the frequency of said alternating voltage, and C is the electric capacity between said exploring electrode and the said electric wire.
6. monitoring device according to claim 1 is characterized in that, also comprises:
Alarm is connected with said controller, is used for reporting to the police according to said alerting signal.
7. the monitoring method of an ac high-voltage electric wire is characterized in that, comprising:
The capacitive sensing ac high-voltage that forms through ac high-voltage electric wire and exploring electrode is to obtain induced signal;
It is pre-conditioned to judge whether said induced signal satisfies; And
Do not satisfy when pre-conditioned output alarm signal at said induced signal.
8. monitoring method according to claim 7 is characterized in that, the capacitive sensing ac high-voltage that forms through ac high-voltage electric wire and exploring electrode comprises to obtain induced signal: form induced voltage.
9. monitoring method according to claim 8 is characterized in that, it is pre-conditioned to judge whether said induced signal satisfies; And do not satisfy when pre-conditioned at said induced signal, output alarm signal comprises:
Calculate said induced voltage;
Judge whether said induced voltage is lower than preset value; And
When said induced voltage is lower than said preset value, export said alerting signal.
10. monitoring method according to claim 9 is characterized in that, adopts following formula to calculate said induced voltage:
Wherein, R is said resistance, V
RBe the voltage of said resistance, promptly said induced voltage, U are the alternating voltage on the electric wire, and f is the frequency of said alternating voltage, and C is the electric capacity between said exploring electrode and the said electric wire.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103790338A CN102508012A (en) | 2011-11-24 | 2011-11-24 | Alternating-current high-voltage wire monitoring device and method |
| PCT/CN2011/084262 WO2013075374A1 (en) | 2011-11-24 | 2011-12-20 | Monitoring method and device for ac high voltage electric wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103790338A CN102508012A (en) | 2011-11-24 | 2011-11-24 | Alternating-current high-voltage wire monitoring device and method |
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| CN102508012A true CN102508012A (en) | 2012-06-20 |
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| CN2011103790338A Pending CN102508012A (en) | 2011-11-24 | 2011-11-24 | Alternating-current high-voltage wire monitoring device and method |
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| CN (1) | CN102508012A (en) |
| WO (1) | WO2013075374A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105652064A (en) * | 2014-12-01 | 2016-06-08 | 三星电子株式会社 | Voltage measurement device and voltage sensor |
| CN117147949A (en) * | 2023-08-22 | 2023-12-01 | 徐州亚泰电机有限公司 | Current alarm device for power supply switch |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101038307A (en) * | 2007-03-31 | 2007-09-19 | 中国石油大学(华东) | Electric-shock detecting warning instrument of engineering vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4523187A (en) * | 1980-08-29 | 1985-06-11 | Norman W. Hutchinson & Sons Pty. Ltd. | Alarm system for electric fences |
| WO1993023759A1 (en) * | 1992-05-20 | 1993-11-25 | The Furukawa Electric Co., Ltd. | Method of discriminating discrimination ojbect, detector therefor and input circuit of the detector |
| NZ501475A (en) * | 1999-12-02 | 2002-08-28 | Tru Test Ltd | Electric fence current pulse amplitude indicated by tone output |
| CN101819226B (en) * | 2010-03-10 | 2012-05-23 | 国网电力科学研究院 | 1000kV extra-high voltage alternating-current non-contact multichannel distance measurement type electroscope |
| CN201611364U (en) * | 2010-03-10 | 2010-10-20 | 国网电力科学研究院 | 1000kV extra-high voltage alternating-current non-contact multichannel range-measuring type electroscope |
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2011
- 2011-11-24 CN CN2011103790338A patent/CN102508012A/en active Pending
- 2011-12-20 WO PCT/CN2011/084262 patent/WO2013075374A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101038307A (en) * | 2007-03-31 | 2007-09-19 | 中国石油大学(华东) | Electric-shock detecting warning instrument of engineering vehicle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105652064A (en) * | 2014-12-01 | 2016-06-08 | 三星电子株式会社 | Voltage measurement device and voltage sensor |
| CN117147949A (en) * | 2023-08-22 | 2023-12-01 | 徐州亚泰电机有限公司 | Current alarm device for power supply switch |
| CN117147949B (en) * | 2023-08-22 | 2024-03-01 | 徐州亚泰电机有限公司 | Current alarm device for power supply switch |
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| WO2013075374A1 (en) | 2013-05-30 |
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Application publication date: 20120620 |