CN202661538U - High voltage live display locking device - Google Patents
High voltage live display locking device Download PDFInfo
- Publication number
- CN202661538U CN202661538U CN 201120528428 CN201120528428U CN202661538U CN 202661538 U CN202661538 U CN 202661538U CN 201120528428 CN201120528428 CN 201120528428 CN 201120528428 U CN201120528428 U CN 201120528428U CN 202661538 U CN202661538 U CN 202661538U
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- signal
- unit
- locking device
- high voltage
- display
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- 238000012545 processing Methods 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims abstract description 3
- 238000004148 unit process Methods 0.000 claims abstract description 3
- 238000012795 verification Methods 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 3
- 230000002463 transducing effect Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Abstract
The utility model relates to a high voltage live display locking device. The high voltage live display locking device comprises a cabinet and is characterized in that the cabinet is internally provided with a signal processing unit, an electricity testing display unit, an equipment self-check unit, a power supply unit and an output contact unit, wherein the cabinet is externally provided with a sensor unit, the sensor unit receives a high voltage line sensing signal, signal I/V conversion is carried out, the signal processing unit processes the converted signal and transmits the signal to an equipment logic circuit for logic judgement which are outputted through two signal output branches, one branch outputs a control signal by utilizing a relay circuit, the other branch outputs a display signal through an LED indication lamp, and the relay circuit is connected with an electromagnetic lock or a microcomputer locking device. The high voltage live display locking device can prevent occurrence of serious safety accidents such as wrong entry of a maintainer into a live part, mal-operation, and the like during operation.
Description
Technical field
It is a kind of for the electrical verification to high-voltage circuit that the utility model belongs to, and output control signal is carried out forced blocking to associative operation mechanism high-voltage electriferous display locking device is provided.
Background technology
The principle of high voltage display device is by an electrode being set in AC field, obtaining induced signal with capacitive coupling, and in a kind of electrical verification mode of induced signal as basis for estimation.Whether charged a kind of mode that induced signal is processed is to adopt the Low ESR input, obtains the electric current of induced signal, by obtaining flowing through the leakage current I of small resistor, then carries out I/V and transforms, carry out judgement according to V.The shortcoming of conventional high-voltage electriferous display locking device: the circuit that obtains and process leakage current signal is comparatively complicated.
Summary of the invention
The purpose of this utility model is to overcome some shortcoming and defect of above-mentioned technical existence, and a kind of high-voltage electriferous display locking device is provided.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of high-voltage electriferous display locking device, comprise the device rack, it is characterized in that, signalization processing unit in the described rack, the electrical verification display unit, the equipment self-inspection unit, power supply unit and output contact unit, described rack arranges sensor unit outward, described sensor unit receives the high-tension line transducing signal, I/V conversion through signal, the signal processing unit processes switching signal transfers to the apparatus logic circuit and carries out the logic judgement, logic is judged minute two paths of signals output, one the tunnel exports control signal with relay circuit, and another road is with LED light output display signal, and described relay circuit connects electromagnetic lock or microcomputer locking.
Compared with prior art, the utlity model has following beneficial effect:
1, it is simple and reliable that modular design makes the circuit that obtains and process leakage current signal, reduces the device cumulative volume.
2, measuring accuracy is high, and minimum exact value can reach 1uA.
3, error is little, and the error amplitude 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, but long-time running.
Description of drawings
Fig. 1 is circuit flow process structural representation of the present utility model.
Embodiment
Below in conjunction with specific embodiment the utility model is described further:
In conjunction with Fig. 1, a kind of high-voltage electriferous display locking device described in the utility model, be comprised 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 all are contained in the rack except sensor unit.The utility model arranges an electrode in AC field, because induced charge will appear in electrostatic induction, with this input signal as device.Generally speaking, electrode and transmit cable and leakage impedance can occur along with the variation 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 to detect electric signal and force ground connection with minimum input impedance, and the amplitude with ground current takes out as useful electric signal simultaneously, thereby other undesired signal obtains stable input signal through the signal processing unit shielding.In addition, the surge signal is easier to miss through ground connection, can not affect other electric appliance loads.Through processing useful electric signal with the variation of the electric field situation in the reflection high-tension line, red, green LED light reflection high-tension line by device electricity or electroless state arranged, danger signal represents height and is pressed with electricity, green represents high pressure without electricity, if device is not worked, LED is without demonstration.Driving simultaneously relay work finishes the automatic control in loop or the function of forced blocking associative operation mechanism.
Technical indicator of the present utility model is as follows:
1) measuring accuracy 4uA (minimum value 1uA);
2) working temperature-40 ℃ is to+85 ℃;
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 output;
9) dead electricity contact output;
10) the 48 hours aging tests of high low temperature of dispatching from the factory, the test in 72 hours of switching on.
It is 35 to 500kV that the utility model is applied to electric pressure, and frequency is gas-insulated switchgear and the high-tension line of 50Hz or 60Hz, can prevent from moving, the generation of the pernicious security incident such as maintainer's mistakenly entering charged chamber and maloperation.
Claims (1)
1. high-voltage electriferous display locking device, comprise the device rack, it is characterized in that, signalization processing unit in the described rack, the electrical verification display unit, the equipment self-inspection unit, power supply unit and output contact unit, described rack arranges sensor unit outward, described sensor unit receives the high-tension line transducing signal, I/V conversion through signal, the signal processing unit processes switching signal transfers to the apparatus logic circuit and carries out the logic judgement, logic is judged minute two paths of signals output, one the tunnel exports control signal with relay circuit, and another road is with LED light output display signal, and described relay circuit connects electromagnetic lock or microcomputer locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120528428 CN202661538U (en) | 2011-12-16 | 2011-12-16 | High voltage live display locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120528428 CN202661538U (en) | 2011-12-16 | 2011-12-16 | High voltage live display locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202661538U true CN202661538U (en) | 2013-01-09 |
Family
ID=47456436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120528428 Expired - Fee Related CN202661538U (en) | 2011-12-16 | 2011-12-16 | High voltage live display locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202661538U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486911A (en) * | 2015-11-23 | 2016-04-13 | 国网浙江象山县供电公司 | High-voltage electroscopic device and method |
| CN114895098A (en) * | 2022-04-11 | 2022-08-12 | 国网安徽省电力有限公司电力科学研究院 | Digital fusion type high-voltage live display locking device |
-
2011
- 2011-12-16 CN CN 201120528428 patent/CN202661538U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486911A (en) * | 2015-11-23 | 2016-04-13 | 国网浙江象山县供电公司 | High-voltage electroscopic device and method |
| CN114895098A (en) * | 2022-04-11 | 2022-08-12 | 国网安徽省电力有限公司电力科学研究院 | Digital fusion type high-voltage live display locking device |
| CN114895098B (en) * | 2022-04-11 | 2023-10-10 | 国网安徽省电力有限公司电力科学研究院 | Digital fusion type high-voltage electrified display locking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XI'AN ZHIXIN ELECTRONIC CO., LTD. Free format text: FORMER OWNER: GAO HEXIANG Effective date: 20130816 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 610000 CHENGDU, SICHUAN PROVINCE TO: 710000 XI'AN, SHAANXI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130816 Address after: Beilin District Friendship Road 710000 Shaanxi city of Xi'an province No. 334 surveying and Mapping Science and technology building block C No. 318 Patentee after: Xi'an Zhixin Electronic Co., Ltd. Address before: 610000, No. 15, building 1, building 1, building 16, 3 Gaosheng Road, Wuhou District, Sichuan, Chengdu Patentee before: Gao Hexiang |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: XI'AN NORHFISH INTELLIGENT TECHNOLOGY CO., LTD. Assignor: Xi'an Zhixin Electronic Co., Ltd. Contract record no.: 2014610000098 Denomination of utility model: High-voltage charged display locking device Granted publication date: 20130109 License type: Exclusive License Record date: 20140701 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20171216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |