CN201788219U - Induction voltage-measuring sensor of high-voltage charged displaying device - Google Patents
Induction voltage-measuring sensor of high-voltage charged displaying device Download PDFInfo
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- CN201788219U CN201788219U CN2010202523222U CN201020252322U CN201788219U CN 201788219 U CN201788219 U CN 201788219U CN 2010202523222 U CN2010202523222 U CN 2010202523222U CN 201020252322 U CN201020252322 U CN 201020252322U CN 201788219 U CN201788219 U CN 201788219U
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Abstract
The utility model discloses an induction voltage-measuring sensor of a high-voltage charged displaying device, which comprises an insulation body formed by pouring epoxy resin, a conductive body, a metal induction pole and a grounding shielding metal, wherein one end of the conductive body is fixedly inserted in the insulation body through pouring; the metal induction pole and the grounding shielding metal are fixedly held in the inner part of the insulation body through pouring; the metal induction pole is arranged outside the conductive body in a surrounding way and is provided with a gap with the conductive body; the grounding shielding metal is arranged outside the metal induction pole in a surrounding way and is provided with a gap with the metal induction pole; and the metal induction pole and the grounding shielding metal are respectively connected with an independent external connector. Though using the electric field induction principle, the induction voltage-measuring sensor of a high-voltage charged displaying device is not influenced by adjacent electrified bodies and has functions of shielding outside electrified bodies and only reflecting conditions of electrified bodies to be tested. Simultaneously, though directly contacting high-voltage electrified bodies, the induction voltage-measuring sensor of a high-voltage charged displaying device can ensure insulation through using the epoxy resin to pour and is different from a traditional contacting sensor of a charged displaying device. In addition, the voltage volume of the electrified bodies which are tested can be measured out precisely.
Description
Technical field
The utility model relates to a kind of supervising device of electric system, relates in particular to a kind of charged demonstration of induction-type high-voltage and voltage measurement sensor whether high-tension apparatus has high-tension electricity and can be used for voltage measurement that be used to detect.
Background technology
High-voltage hot-line work is dangerous big, therefore need to indicate the whether charged display device of high-tension apparatus, high voltage display device commonly used comprises sensor and controller two parts usually, high-pressure system is used the high voltage potential transformer measuring voltage always, the sensor of present domestic high voltage display device is divided into contact and contactless two kinds usually, touch sensor adopts electric capacity that high pressure is carried out dividing potential drop and extracts signal, thereby judge whether measurand is charged, electric capacity takes place and punctures the formation accident in this sensor easily.Zhou Wei, the paper " electrification in high voltage shows present situation and development thereof " that Shen is old to be published on " Chinese grid equipment " 2009 the 2nd the 13rd phases of volume have been introduced a kind of induction type electric demonstration, the principle of induction high-voltage electric field signal is adopted in this contactless charged demonstration, sensor is contained in the electrified body below, accept electric field signal, near the influence of electrified body this sensor is subjected to easily is so often cause the mistake indication.Aspect voltage measurement, often adopt voltage transformer (VT), but the voltage transformer (VT) volume is big, install inconvenient.
The utility model content
In view of this, technical problem to be solved in the utility model is: be not subjected to contiguous electrified body to influence, guarantee the charged demonstration of induction-type high-voltage and the voltage measurement sensor of insulation and measuring voltage size but provide a kind of.
In order to achieve the above object, the utility model adopts following technical scheme to realize:
Charged demonstration of a kind of induction-type high-voltage and voltage measurement sensor, wherein, comprise that an insulator and an end that poured with epoxy resin becomes water the electric conductor that is inserted in admittedly in the described insulator, and water metal induction pole and the grounded shield metal that is placed in described insulator inside admittedly, described metal induction pole be located in described electric conductor outer and and described electric conductor between have at interval, described grounded shield metal be located in described metal induction pole outer and and described metal induction pole between have at interval, described metal induction pole and grounded shield metal are connected with separately independently external wire respectively.
As shown from the above technical solution, the beneficial effects of the utility model are:
Compared to existing technology, the utility model utilization electric field induction principle, but not influenced by contiguous electrified body, antijamming capability is strong, has the function that the extraneous electrified body of shielding influences, only reflects the charged situation of tested electrified body, has adopted poured with epoxy resin simultaneously, though directly contact with high-voltage charged body, but can guarantee insulation, be different from the charged demonstration sensor of traditional contact, can also accurately measure the size of tested electrified body voltage in addition.
Description of drawings
Fig. 1 is a vertical section structure synoptic diagram of the present utility model.
Fig. 2 is a cross-sectional structure synoptic diagram of the present utility model.
Embodiment
In order to make those skilled in the art can further understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing.
See also Fig. 1 to shown in Figure 2, the utility model provides charged demonstration of a kind of induction-type high-voltage and voltage measurement sensor, wherein, comprise that an insulator 6 and an end that poured with epoxy resin becomes water the electric conductor 1 that is inserted in admittedly in the described insulator, and water metal induction pole 2 and the grounded shield metal 3 that is placed in described insulator inside admittedly, described metal induction pole be located in described electric conductor outer and and described electric conductor between have at interval, described grounded shield metal be located in described metal induction pole outer and and described metal induction pole between have at interval, described metal induction pole and grounded shield metal are connected with separately independently external wire 4 respectively, 5.
The utility model is in concrete the application, electric conductor 1 direct and high press contacts, at the electric conductor middle part metal induction pole 2 is housed, in the sensor outside grounded shield metal 3 is housed, induction pole and shielded metal are drawn with lead 4,5 and are connected to controller, electric conductor, induction pole, grounded shield metal integral are cast in the epoxy resin, guarantee insulation.When measured body is charged, electric conductor is connected with it, therefore charged situation is identical with it, this moment, electric conductor and induction pole and grounded shield intermetallic formed induction field, therefore induction pole induces electromotive force, if sinusoidal voltage on the measured body band, then respond to model and also be sinusoidal voltage, because grounded shield metal ground connection, so the electrified body beyond the grounded shield metal can not produce induced potential substantially on induction pole, thus, the induced potential size is determined by electric conductor voltage, induction pole and grounded shield intermetallic form a metastable voltage difference, can extrapolate the voltage of electrified body by detecting this voltage.
But the above only is a preferable possible embodiments of the present utility model, is not in order to limit to claim of the present utility model, so the equivalent structure that all utilization the utility model instructionss and accompanying drawing content are done changes, all in like manner to be included in the scope of the present utility model.
Claims (1)
1. charged demonstration of induction-type high-voltage and voltage measurement sensor, it is characterized in that, comprise that an insulator and an end that poured with epoxy resin becomes water the electric conductor that is inserted in admittedly in the described insulator, and water metal induction pole and the grounded shield metal that is placed in described insulator inside admittedly, described metal induction pole be located in described electric conductor outer and and described electric conductor between have at interval, described grounded shield metal be located in described metal induction pole outer and and described metal induction pole between have at interval, described metal induction pole and grounded shield metal are connected with separately independently external wire respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202523222U CN201788219U (en) | 2010-07-08 | 2010-07-08 | Induction voltage-measuring sensor of high-voltage charged displaying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202523222U CN201788219U (en) | 2010-07-08 | 2010-07-08 | Induction voltage-measuring sensor of high-voltage charged displaying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201788219U true CN201788219U (en) | 2011-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202523222U Expired - Fee Related CN201788219U (en) | 2010-07-08 | 2010-07-08 | Induction voltage-measuring sensor of high-voltage charged displaying device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201788219U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871816A (en) * | 2012-12-17 | 2014-06-18 | 北京北方微电子基地设备工艺研究中心有限责任公司 | Sensor used for matcher, matcher with sensor and plasma equipment with matcher |
| CN105842525A (en) * | 2016-03-29 | 2016-08-10 | 国网上海市电力公司 | Method of determining electrification of box transformer cable by adopting magnetic field coupling principle |
| WO2021174938A1 (en) * | 2020-03-02 | 2021-09-10 | 青岛经济技术开发区海尔热水器有限公司 | Electrical leakage induction element, electrical leakage detection circuit and water heater |
-
2010
- 2010-07-08 CN CN2010202523222U patent/CN201788219U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871816A (en) * | 2012-12-17 | 2014-06-18 | 北京北方微电子基地设备工艺研究中心有限责任公司 | Sensor used for matcher, matcher with sensor and plasma equipment with matcher |
| CN105842525A (en) * | 2016-03-29 | 2016-08-10 | 国网上海市电力公司 | Method of determining electrification of box transformer cable by adopting magnetic field coupling principle |
| WO2021174938A1 (en) * | 2020-03-02 | 2021-09-10 | 青岛经济技术开发区海尔热水器有限公司 | Electrical leakage induction element, electrical leakage detection circuit and water heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20130708 |