CN102981039A - High-voltage transmission line electrification indicator based on field intensity method - Google Patents
High-voltage transmission line electrification indicator based on field intensity method Download PDFInfo
- Publication number
- CN102981039A CN102981039A CN2012104643237A CN201210464323A CN102981039A CN 102981039 A CN102981039 A CN 102981039A CN 2012104643237 A CN2012104643237 A CN 2012104643237A CN 201210464323 A CN201210464323 A CN 201210464323A CN 102981039 A CN102981039 A CN 102981039A
- Authority
- CN
- China
- Prior art keywords
- transmission line
- circuit
- voltage
- ultra
- power transmission
- 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
Images
Abstract
The invention discloses a high-voltage transmission line electrification indicator based on a field intensity method. The high-voltage transmission line electrification indicator based on the field intensity method comprises an electric field coupling type voltage signal collecting circuit, a signal processing circuit, a microprocessor, a small current transformer (CT) electricity taking circuit, a battery power circuit, a flip board indicating drive circuit, a flip board indicator and an interface circuit. A novel type electric transmission online voltage online monitoring device utilizes an electric field method to obtain a voltage signal, utilizes a magnetic field method to obtain work electric energy, meets the electrification indicating requirement of an electric transmission line and provides a brand-new and reliable method for the overhauling and maintaining of the electric transmission line and stoppage polling inspection.
Description
Technical field
The present invention relates to a kind of Electric and magnetic fields coupling scheme of utilizing and obtain ultra-high-tension power transmission line voltage and current signal, and with the ultra-high-tension power transmission line that monitors charged state whether, by the ultra-high-tension power transmission line potential indicator of wireless mode teletransmission to Surveillance center.
Background technology
At cable branch box, in all insulation equipment such as case change and ring main unit, because each live part all is all insulation, can't judge directly whether circuit is charged, simultaneously for aerial high-voltage power transmission line, because it is higher to set up distance, and electric pressure is higher can't judge directly also whether circuit is charged, in order accurately to judge whether the said equipment is charged, the present invention proposes a kind of ultra-high-tension power transmission line potential indicator and method thereof based on standard-field strength method, can be widely used in the indoor and outdoors electric pressure is on 10～500kV electrical equipment, demonstrate high-tension apparatus with operation conditions with the board turning form, can effectively prevent error shock, the person that live ground wiring etc. cause, equipment and electric system power outage have very important significance to the safe and reliable operation of electric system.
Summary of the invention
Technical matters to be solved by this invention provides a kind of Electric and magnetic fields coupling scheme of utilizing and obtains ultra-high-tension power transmission line voltage and current signal, can be to the ultra-high-tension power transmission line charged ultra-high-tension power transmission line potential indicator that can send to by board turning or wireless mode a distant place whether.
For solving the problems of the technologies described above, the invention provides a kind of ultra-high-tension power transmission line potential indicator and method thereof based on standard-field strength method, comprise field coupled formula voltage signal acquisition circuit, signal processing circuit, microprocessor, little CT power-supply circuit, battery power circuit, board turning indication driving circuit, board turning indicator and interface circuit.
Field coupled formula voltage signal acquisition circuit comprises discharge tube, resistance R, inductance L, capacitor C and electrode.
Field coupled formula voltage signal acquisition circuit comprises discharge tube, resistance R, inductance L, voltage stabilizing diode D (also can be the voltage stabilizing diode of two differential concatenations) and electrode.
Little CT power-supply circuit adopts the less iron core (being CT) in cross section, utilize magnetic saturation characteristic unshakable in one's determination can obtain comparatively galvanic current pressure, little CT power taking namely obtains AC energy from the high voltage bus induction, then through rectification, filtering, release, DC-DC conversion etc., obtain stable 5V and 3.3V voltage.
The board turning indicator has two kinds of colors, and red expression has electricity, white expression nothing electricity, or the white expression has electricity, the red expression without electricity.
Voltage and current on the transmission line of electricity adopts respectively the Electric and magnetic fields coupling scheme to obtain.
Interface circuit can connect wireless sending module will whether charged signal sends to a distant place.
The present invention has positive effect: (1) ultra-high-tension power transmission line potential indicator based on standard-field strength method of the present invention, little CT power-supply circuit adopts the less CT in cross section, utilizes magnetic saturation characteristic unshakable in one's determination can obtain comparatively galvanic current pressure.(2) the ultra-high-tension power transmission line potential indicator based on standard-field strength method of the present invention utilizes principle of electric field to solve the noncontact coupling scheme and measures the transmission line of electricity voltage problem, makes the design of transmission line of electricity potential indicator become simple and reliable.(3) the ultra-high-tension power transmission line potential indicator based on standard-field strength method of invention uses simply, is convenient to dismantle from transmission line of electricity.
Description of drawings
Fig. 1 is the ultra-high-tension power transmission line potential indicator principle assumption diagram based on standard-field strength method of embodiment 1.
Fig. 2 is the principle assumption diagram of the field coupled formula voltage signal acquisition circuit of embodiment 1.
Fig. 3 is the principle assumption diagram of the field coupled formula voltage signal acquisition circuit of embodiment 1.
Fig. 4 is the little CT power-supply circuit theory diagram of embodiment 1.
Fig. 5 is the curve of the core depth of embodiment 1 magnetic induction density and electromotive force when saturated.
Embodiment
(embodiment 1)
See Fig. 1, Fig. 2, Fig. 3 and Fig. 4, ultra-high-tension power transmission line potential indicator and the method thereof based on standard-field strength method of present embodiment comprise field coupled formula voltage signal acquisition circuit 1, signal processing circuit 2, microprocessor 3, little CT power-supply circuit 4, battery power circuit 5, board turning indication driving circuit 6, board turning indicator 7 and interface circuit 8.
Voltage and current on the transmission line of electricity adopts respectively the Electric and magnetic fields coupling scheme to obtain.
Field coupled formula voltage signal acquisition circuit 1 comprises discharge tube, resistance R, inductance L, capacitor C and electrode.
Field coupled formula voltage signal acquisition circuit 1 comprises discharge tube, resistance R, inductance L, voltage stabilizing diode D (also can be the voltage stabilizing diode of two differential concatenations) and electrode.
When electrode contacts with ultra-high-tension power transmission line, can equivalence be an electric capacity just between electrode and the transmission line of electricity, as shown in Figure 4, utilize the partial pressure properties of electric capacity just can obtain at the capacitor C two ends and the on all four voltage signal of transmission line of electricity voltage composition, after this signal is delivered to signal processing circuit and processed, just can be used as the criterion whether transmission line of electricity exists voltage.
Little CT power-supply circuit 4 adopts the less iron core (being CT) in cross section, utilize magnetic saturation characteristic unshakable in one's determination can obtain comparatively galvanic current pressure, little CT power taking namely obtains AC energy from the high voltage bus induction, then through rectification, filtering, release, DC-DC conversion etc., obtain stable 5V and 3.3V voltage.
The below carries out theoretical validation, proves little CT after entering state of saturation, and output voltage stabilization, Fig. 5 are the oscillogram of the core depth of little CT when saturated.
As can be seen from Figure 5, during unsaturation unshakable in one's determination, the magnetic induction density temporal evolution is approximated to linearity; Magnetic induction density increases extremely slowly after iron core is saturated, and it is constant to think approx that the magnetic induction density of this moment maintains a definite value, is BS shown in the figure.In formula 1, e2 is the secondary side magnitude of voltage, and N2 is the second siding ring number of turn, and Φ is main flux, and S is area of core section.To the t2 interval e2 is carried out integration at time t1, it is formula 2, the magnitude of voltage that can obtain in iron core enters saturated rear half period is a definite value, such as curve top among Fig. 5, and can find out, its size is irrelevant with bus current, and only and area of core section, the second siding ring number of turn is relevant with saturation induction density.
Board turning indicator 7 has two kinds of colors, and red expression has electricity, and the white expression also can be that the white expression has electricity without electricity, and red expression is without electricity.This potential indicator is articulated on the transmission line of electricity with application specific architecture, when the electric current on the transmission line of electricity during greater than 50A, utilize the field coupled principle can obtain the electric energy of indicator continuous firing, consider simultaneously to adopt the small bore iron core, current limliting problem when utilizing the magnetic field saturation technique to solve large electric current, still can work reliably when making indicator current surpass 3000A, provide the electric energy of continuous firing when the transmission line of electricity electric current adopts battery during less than 50A for indicator, electric current is less than 2 milliamperes during the indicator normal operation.When on the transmission line of electricity voltage being arranged, then indicator turns over red card, and when not having voltage on the transmission line of electricity, then indicator turns over the person who is not a member of any political party.
Interface circuit 8 can connect wireless sending module will whether charged signal sends to a distant place.
Claims (7)
1. based on the ultra-high-tension power transmission line potential indicator of standard-field strength method, it is characterized in that, comprise field coupled formula voltage signal acquisition circuit (1), signal processing circuit (2), microprocessor (3), little CT power-supply circuit (4), battery power circuit (5), board turning indication driving circuit (6), board turning indicator (7) and interface circuit (8).
2. the ultra-high-tension power transmission line potential indicator based on standard-field strength method as claimed in claim 1 is characterized in that, field coupled formula voltage signal acquisition circuit (1) comprises discharge tube, resistance R, inductance L, capacitor C and electrode.
3. the ultra-high-tension power transmission line potential indicator based on standard-field strength method as claimed in claim 1, it is characterized in that field coupled formula voltage signal acquisition circuit (1) comprises discharge tube, resistance R, inductance L, is voltage stabilizing diode D (also can be the voltage stabilizing diode of two differential concatenations) and electrode.
4. the ultra-high-tension power transmission line potential indicator based on standard-field strength method as claimed in claim 1, it is characterized in that, little CT power-supply circuit (4) adopts the less iron core (being CT) in cross section, utilize magnetic saturation characteristic unshakable in one's determination can obtain comparatively galvanic current pressure, little CT power taking namely obtains AC energy from the high voltage bus induction, then through rectification, filtering, release, DC-DC conversion etc., obtain stable 5V and 3.3V voltage.
5. the ultra-high-tension power transmission line potential indicator based on standard-field strength method as claimed in claim 2 is characterized in that, board turning indicator (7) has two kinds of colors, and red expression has electricity, and the white expression has electricity without electricity or white expression, and red expression is without electricity.
6. the ultra-high-tension power transmission line potential indicator based on standard-field strength method as claimed in claim 2 is characterized in that, the voltage and current on the transmission line of electricity adopts respectively the Electric and magnetic fields coupling scheme to obtain.
7. the ultra-high-tension power transmission line potential indicator based on standard-field strength method as claimed in claim 1 is characterized in that, interface circuit (8) can connect wireless sending module will whether charged signal sends to a distant place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104643237A CN102981039A (en) | 2012-11-16 | 2012-11-16 | High-voltage transmission line electrification indicator based on field intensity method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104643237A CN102981039A (en) | 2012-11-16 | 2012-11-16 | High-voltage transmission line electrification indicator based on field intensity method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102981039A true CN102981039A (en) | 2013-03-20 |
Family
ID=47855247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104643237A Pending CN102981039A (en) | 2012-11-16 | 2012-11-16 | High-voltage transmission line electrification indicator based on field intensity method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102981039A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104375002A (en) * | 2014-10-10 | 2015-02-25 | 中国石油化工股份有限公司 | Electricity metering system, electricity measuring device and electricity metering device |
| CN107104475A (en) * | 2016-02-23 | 2017-08-29 | 西门子公司 | A kind of power supply circuit and a kind of method of power supply |
| CN108152563A (en) * | 2018-01-06 | 2018-06-12 | 国网山东省电力公司夏津县供电公司 | Early warning interceptor is accidentally stepped under electromagnetically |
| CN110716081A (en) * | 2019-10-11 | 2020-01-21 | 国网福建省电力有限公司泉州供电公司 | Method for collecting field intensity type high-voltage line voltage harmonic signals |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6124798A (en) * | 1998-12-09 | 2000-09-26 | Institute Of Occupational Safety And Health, Council Of Labor Affairs, Executive Yuan | Alarm device designed to warn of danger of hitting high voltage power line by crane in motion |
| CN1330272A (en) * | 2000-06-20 | 2002-01-09 | 四川大学 | High-voltage charge indicator with electric field effect |
| CN2539185Y (en) * | 2002-04-02 | 2003-03-05 | 武汉英康电子信息技术有限责任公司 | Wireless high-voltage elecroscope |
| CN101017602A (en) * | 2007-02-09 | 2007-08-15 | 河海大学常州校区 | The circuit device of the power grid harmonious radio detector and its working method |
| CN102231591A (en) * | 2011-07-13 | 2011-11-02 | 武汉武新电气科技有限公司 | Distribution network working power supply based on self-energy-gaining coil technology |
| CN203299261U (en) * | 2012-11-16 | 2013-11-20 | 天津同星电气有限公司 | Field strength method-based high voltage power transmission line electrification indicator |
-
2012
- 2012-11-16 CN CN2012104643237A patent/CN102981039A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6124798A (en) * | 1998-12-09 | 2000-09-26 | Institute Of Occupational Safety And Health, Council Of Labor Affairs, Executive Yuan | Alarm device designed to warn of danger of hitting high voltage power line by crane in motion |
| CN1330272A (en) * | 2000-06-20 | 2002-01-09 | 四川大学 | High-voltage charge indicator with electric field effect |
| CN2539185Y (en) * | 2002-04-02 | 2003-03-05 | 武汉英康电子信息技术有限责任公司 | Wireless high-voltage elecroscope |
| CN101017602A (en) * | 2007-02-09 | 2007-08-15 | 河海大学常州校区 | The circuit device of the power grid harmonious radio detector and its working method |
| CN102231591A (en) * | 2011-07-13 | 2011-11-02 | 武汉武新电气科技有限公司 | Distribution network working power supply based on self-energy-gaining coil technology |
| CN203299261U (en) * | 2012-11-16 | 2013-11-20 | 天津同星电气有限公司 | Field strength method-based high voltage power transmission line electrification indicator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104375002A (en) * | 2014-10-10 | 2015-02-25 | 中国石油化工股份有限公司 | Electricity metering system, electricity measuring device and electricity metering device |
| CN107104475A (en) * | 2016-02-23 | 2017-08-29 | 西门子公司 | A kind of power supply circuit and a kind of method of power supply |
| CN107104475B (en) * | 2016-02-23 | 2020-06-19 | 西门子公司 | Power supply circuit and power supply method |
| CN108152563A (en) * | 2018-01-06 | 2018-06-12 | 国网山东省电力公司夏津县供电公司 | Early warning interceptor is accidentally stepped under electromagnetically |
| CN110716081A (en) * | 2019-10-11 | 2020-01-21 | 国网福建省电力有限公司泉州供电公司 | Method for collecting field intensity type high-voltage line voltage harmonic signals |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102981039A (en) | High-voltage transmission line electrification indicator based on field intensity method | |
| CN102944804A (en) | Overhead line fault detection system | |
| CN102004213A (en) | Direct-detection type intelligent direct-current system insulation and state diagnosis instrument | |
| CN203788174U (en) | Impact-resistant DC high-voltage generator | |
| CN201666819U (en) | High-voltage switch temperature monitoring and early-warning system | |
| CN203299261U (en) | Field strength method-based high voltage power transmission line electrification indicator | |
| CN204229174U (en) | A kind of structure for accounting automobile high-tension connector plug number of times | |
| CN104319910A (en) | Power source energy taking circuit based on high-voltage power transmission line | |
| CN103353566B (en) | Battery for mimic channel equipment testing circuit in place | |
| CN203014501U (en) | Wireless data acquisition apparatus having self-powered function | |
| CN203101588U (en) | AC power switching value acquisition circuit | |
| CN201828640U (en) | Direct-detecting intelligent apparatus for diagnosing insulation and status of direct-current (DC) system | |
| CN103901346B (en) | Battery test circuit and battery short circuit testing device | |
| CN201994543U (en) | Current terminal short-circuit device | |
| CN102062640B (en) | High-voltage switch temperature monitoring and early warning system | |
| CN202260526U (en) | Power system circuit | |
| CN205263178U (en) | It uses intelligent security bracelet to exchange electrical equipment maintenance debugging | |
| CN205263177U (en) | Intelligent security bracelet is used in direct current electrical equipment maintenance debugging | |
| CN201425773Y (en) | Line disconnection power failure alarm | |
| CN104253545A (en) | Rectifying apparatus | |
| CN219532286U (en) | Temperature measuring device for switch cabinet | |
| CN204761169U (en) | Wireless receiving module and wireless charging system | |
| CN204595081U (en) | A kind of induction type electric display device | |
| CN220064297U (en) | Passive contact identification module | |
| CN204241527U (en) | A kind of mining high-voltage switch Special test power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130320 |
|
| WD01 | Invention patent application deemed withdrawn after publication |