CN104423284A - High-voltage electrification displaying and locking device - Google Patents
High-voltage electrification displaying and locking device Download PDFInfo
- Publication number
- CN104423284A CN104423284A CN201310401565.6A CN201310401565A CN104423284A CN 104423284 A CN104423284 A CN 104423284A CN 201310401565 A CN201310401565 A CN 201310401565A CN 104423284 A CN104423284 A CN 104423284A
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- CN
- China
- Prior art keywords
- signal
- unit
- locking device
- display
- voltage
- 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.)
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/145—Indicating the presence of current or voltage
- G01R19/155—Indicating the presence of voltage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention relates to a high-voltage electrification displaying and locking device. The high-voltage electrification displaying and locking device comprises a device cabinet and is characterized in that a signal processing unit, an electrical inspection display unit, an equipment self-inspection unit, a power unit and an output contact unit are arranged in the cabinet; a sensor unit is arranged outside the cabinet; the sensor unit of the device is used for receiving a high-voltage line sensing signal; the signal is subjected to I/V (Current to Voltage) conversion; the signal processing unit is used for processing the converted signal and transmitting the signal to an equipment logic circuit; the equipment logic circuit is used for performing logical judgment. According to the device, vicious safety accidents that an operator and a maintainer enter an electrification interval by mistake and perform false operation can be prevented.
Description
Technical field
The invention belongs to a kind of for the electrical verification to high-voltage circuit, and provide output control signal associative operation mechanism to be carried out to the high-voltage electriferous display locking device of forced blocking.
Background technology
The principle of high voltage display device is by arranging an electrode in AC field, obtains induced signal with capacitive coupling, and a kind of electrical verification mode using induced signal as basis for estimation.Be adopt Low ESR input to a kind of mode of induced signal process, obtain the electric current of induced signal, by obtaining the leakage current I flowing through small resistor, then carrying out I/V conversion, carry out whether charged judgement according to V.The shortcoming of conventional high-pressure electrified display interlock apparatus: the circuit obtaining and process leakage current signal is comparatively complicated.
Summary of the invention
The object of the invention is to some shortcoming and defect overcoming above-mentioned technical existence, a kind of high-voltage electriferous display locking device is provided.
For achieving the above object, the technical solution used in the present invention is:
A kind of high-voltage electriferous display locking device, comprise device rack, it is characterized in that, in described rack, signalization processing unit, electrical verification display unit, equipment self-inspection unit, power supply unit and output contact unit, arrange sensor unit outside described rack.
The sensor unit of described device receives high-tension line transducing signal, and change through the I/V of signal, signal processing unit processes switching signal transfers to apparatus logic circuit and carries out Logic judgment.
Described Logic judgment divides two paths of signals to export, and a road relay circuit exports control signal, another road LED light output display signal.
Described relay circuit connects electromagnetic lock or microcomputer locking.
Described LED indicates display to be red, green.
Described danger signal represents and is highly pressed with electricity, and described green represents high pressure without electricity, if device does not work, LED is without display.
Compared with prior art, the present invention has following beneficial effect:
1, modular design makes the circuit of acquisition and process leakage current signal simple and reliable, reduces device cumulative volume.
2, measuring accuracy is high, and minimum exact value can reach 1uA.
3, error is little, and error magnitude is ± 3%.
4, degree of protection is high, and working range is wide.
5, product, performance, quality, life-span are all reliably guaranteed, non-maintaining design, can long-time running.
Accompanying drawing explanation
Fig. 1 is circuit flowage structure schematic diagram of the present invention.
Embodiment
Below in conjunction with specific embodiment, the present invention is described further:
By reference to the accompanying drawings, a kind of high-voltage electriferous display locking device of the present invention, be made up of several cell mesh such as sensor unit, signal processing unit, electrical verification display unit, equipment self-inspection unit, power supply unit, output contact unit, all parts are all contained in rack except sensor unit.The present invention arranges an electrode in AC field, because electrostatic induction will occur induced charge, using this input signal as device.Generally, electrode and transmit cable and there will be leakage impedance along with the change of time and natural conditions, and the various undesired signals in space have considerable influence for the transmission of input signal.Device adopts new principle detect electric signal with minimum input impedance and force ground connection, is taken out by the amplitude of ground current as useful electric signal simultaneously, and other undesired signal shields through signal processing unit thus obtains stable input signal.In addition, surge signal is easier to miss through ground connection, can not affect other electric appliance loads.Through processing useful electric signal to reflect the change of the electric field conditions in high-tension line, there are electricity or electroless state by red, the green LED light reflection high-tension line of device, drive relay work to complete the function of automatic control to loop or forced blocking associative operation mechanism simultaneously.
Technical indicator of the present invention is as follows:
1) measuring accuracy 4uA(minimum value 1uA);
2) working temperature-40 DEG C to+85 DEG C;
3) main EMC index IV level;
4) sea level elevation 4850m;
5) IP grade IP55;
6) form uses PC(polycarbonate) material;
7) rack uses " Shi Naide " degree of protection IP66 stainless steel plastic-blasting rack;
8) fault warning contact exports;
9) dead electricity contact exports;
10) the hours aging test of high/low temperature of dispatching from the factory 48, be energized 72 h run.
It is 35 to 500kV that the present invention is applied to electric pressure, and frequency is gas-insulated switchgear and the high-tension line of 50Hz or 60Hz, can prevent the generation of the pernicious security incidents such as operation, maintainer's mistakenly entering charged chamber and maloperation.
Claims (6)
1. a high-voltage electriferous display locking device, comprises device rack, it is characterized in that, in described rack, signalization processing unit, electrical verification display unit, equipment self-inspection unit, power supply unit and output contact unit, arrange sensor unit outside described rack.
2. a kind of high-voltage electriferous display locking device according to claim 1, it is characterized in that, the sensor unit of described device receives high-tension line transducing signal, and change through the I/V of signal, signal processing unit processes switching signal transfers to apparatus logic circuit and carries out Logic judgment.
3. a kind of high-voltage electriferous display locking device according to claim 2, is characterized in that, described Logic judgment divides two paths of signals to export, and a road relay circuit exports control signal, another road LED light output display signal.
4. a kind of high-voltage electriferous display locking device according to claim 3, is characterized in that, described relay circuit connects electromagnetic lock or microcomputer locking.
5. a kind of high-voltage electriferous display locking device according to claim 3, is characterized in that, described LED indicates display to be red, green.
6. a kind of high-voltage electriferous display locking device according to claim 5, is characterized in that, described danger signal represents and is highly pressed with electricity, and described green represents high pressure without electricity, if device does not work, LED is without display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310401565.6A CN104423284A (en) | 2013-09-06 | 2013-09-06 | High-voltage electrification displaying and locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310401565.6A CN104423284A (en) | 2013-09-06 | 2013-09-06 | High-voltage electrification displaying and locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104423284A true CN104423284A (en) | 2015-03-18 |
Family
ID=52972642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310401565.6A Pending CN104423284A (en) | 2013-09-06 | 2013-09-06 | High-voltage electrification displaying and locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104423284A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044442A (en) * | 2015-08-03 | 2015-11-11 | 国网浙江省电力公司台州供电公司 | High-voltage live detection device |
| CN105116203A (en) * | 2015-08-10 | 2015-12-02 | 国网浙江省电力公司湖州供电公司 | High-voltage presence indication device through monitoring leakage current of high voltage equipment |
| CN105738688A (en) * | 2016-05-09 | 2016-07-06 | 国网浙江省电力公司杭州供电公司 | Electrical inspection and locking device based on leakage current of high voltage equipment |
-
2013
- 2013-09-06 CN CN201310401565.6A patent/CN104423284A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044442A (en) * | 2015-08-03 | 2015-11-11 | 国网浙江省电力公司台州供电公司 | High-voltage live detection device |
| CN105116203A (en) * | 2015-08-10 | 2015-12-02 | 国网浙江省电力公司湖州供电公司 | High-voltage presence indication device through monitoring leakage current of high voltage equipment |
| CN105738688A (en) * | 2016-05-09 | 2016-07-06 | 国网浙江省电力公司杭州供电公司 | Electrical inspection and locking device based on leakage current of high voltage equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150318 |