CN202093118U - Compound sensor for temperature and partial discharge of dry-type transformer - Google Patents
Compound sensor for temperature and partial discharge of dry-type transformer Download PDFInfo
- Publication number
- CN202093118U CN202093118U CN2011201573657U CN201120157365U CN202093118U CN 202093118 U CN202093118 U CN 202093118U CN 2011201573657 U CN2011201573657 U CN 2011201573657U CN 201120157365 U CN201120157365 U CN 201120157365U CN 202093118 U CN202093118 U CN 202093118U
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- dry
- type transformer
- inner sleeve
- temperature
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- Arrangements For Transmission Of Measured Signals (AREA)
- Testing Relating To Insulation (AREA)
Abstract
A compound sensor for temperature and partial discharge of a dry-type transformer belongs to the technical field of detection and is used for solving the detection problem of the dry-type transformer. The compound sensor adopts the technical scheme that the compound sensor consists of an inner sleeve, an outer sleeve, an ultra-high frequency antenna, a temperature sensor and a coaxial cable, wherein the inner sleeve is sheathed on a column of a dry-type transformer core; the outer sleeve is sheathed outside the inner sleeve; the ultra-high frequency antenna is positioned in a gap between the outer sleeve and the inner sleeve; the signal output end of the ultra-high frequency antenna is connected with a center electrode of the coaxial cable; the temperature sensor is connected between two electrodes of the coaxial cable; and the lead-out end of the coaxial cable is connected with a testing instrument. The compound sensor can simultaneously measure temperature partial discharge signals of the dry-type transformer, and the two signals are transmitted to measurement equipment through the same transmission cable; therefore, the structure of the sensor is greatly simplified, the design and manufacture difficulty of the transformer are reduced, and the detection of the transformer is more convenient and quick.
Description
Technical field
The utility model relates to a kind ofly can measure the temperature of dry-type transformer and the built-in compound sensor of local discharge signal simultaneously, belongs to the detection technique field.
Background technology
Along with the continuous development of scientific and technological level, all trades and professions rapidly increase the demand of electric power, and electricity has become various places economic development and the indispensable product of people's lives.For guaranteeing the stability and security of electric power supply, the detection of power transmitting device especially high-tension electricity transmission equipment has been become the problem of present the supreme arrogance of a person with great power.For dry-type transformer, temperature and local discharge signal all are very important test items, but must adopt two kinds of equipment independent of each other to both measurements at present, complex operation, inefficiency, reserve installing space but also will in transformer, be respectively two kinds of sensors, cause transformer device structure complicated, the difficulty that has increased design and made.If only just can realization office put measurement with temperature with a kind of sensor, will simplify the structure of transformer, save detection time and cost.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of can measure the temperature of dry-type transformer and compound sensor is put in the dry-type transformer temperature office of local discharge signal simultaneously.
Problem described in the utility model realizes with following technical proposals:
Compound sensor is put in a kind of dry-type transformer temperature office, form by inner sleeve, outer sleeve, ultra-high frequency antenna, temperature sensor and concentric cable, described inner sleeve is sleeved on the post of dry-type transformer iron core, described outer sleeve is sleeved on the inner sleeve outside, in the gap of described ultra-high frequency antenna between outer sleeve and inner sleeve, the signal output part of ultra-high frequency antenna connects the central electrode of concentric cable, described temperature sensor is connected between two electrodes of concentric cable, described concentric cable draw the termination testing tool.
Compound sensor is put in above-mentioned dry-type transformer temperature office, and an end of described inner sleeve is provided with routing hole, and described temperature sensor is positioned at routing hole.
Compound sensor is put in above-mentioned dry-type transformer temperature office, and the external surface shape of the inwall of described inner sleeve and dry-type transformer core limb is complementary.
The utility model fits together the ultra-high frequency antenna of temperature sensor and survey bureau's discharge signal, can measure the temperature and the local discharge signal of dry-type transformer simultaneously, and two kinds of signals are transferred on the measuring equipment by same transmission cable, simplified the structure of sensor greatly, reduced design of transformer and manufacture difficulty, simultaneously also made the detection of transformer convenient, quick.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is a cut-open view of the present utility model;
Fig. 2 is a scheme of installation of the present utility model.
Each label is among the figure: 1, outer sleeve; 2, ultra-high frequency antenna; 3, inner sleeve; 4, concentric cable; 5, temperature sensor; 6, iron core; 7, compound sensor.
Embodiment
Referring to Fig. 1, Fig. 2, compound sensor 7 mainly is made of outer sleeve 1, ultra-high frequency antenna 2, inner sleeve 3, coaxial transmission cable 4, temperature sensor 5.During use, tested product pass from the hole in the middle of the inner sleeve 3.Ultra-high frequency antenna 2 is gathered local discharge signal (this signal is an AC signal), and temperature sensor 5 is gathered the temperature signal (this signal is a direct current signal) of transformer, and two kinds of signals transmit via same coaxial transmission cable.The other end of transmission cable adopts standard BNC head, and installs waterproofing protection additional.The utility model is with after surveying instrument is connected, and can carry out on-line monitoring to tested product or patrols and examines according to concrete scheme.
The external surface shape of the inwall of inner sleeve 3 and dry-type transformer core limb is complementary, and according to the shape of leg, what inner sleeve 3 of the present utility model both can be for shown in the figure is cylindric, also can be other shapes.
Claims (3)
1. compound sensor is put in a dry-type transformer temperature office, it is characterized in that, it is by inner sleeve (3), outer sleeve (1), ultra-high frequency antenna (2), temperature sensor (5) and concentric cable (4) are formed, described inner sleeve (3) is sleeved on the post of dry-type transformer iron core (6), described outer sleeve (1) is sleeved on inner sleeve (3) outside, described ultra-high frequency antenna (2) is positioned at the gap between outer sleeve (1) and the inner sleeve (3), the signal output part of ultra-high frequency antenna (2) connects the central electrode of concentric cable (4), described temperature sensor (5) is connected between two electrodes of concentric cable (4), described concentric cable (4) draw the termination testing tool.
2. put compound sensor according to the described dry-type transformer temperature of claim 1 office, it is characterized in that, an end of described inner sleeve (3) is provided with routing hole, and described temperature sensor (5) is positioned at routing hole.
3. put compound sensor according to claim 1 or 2 described dry-type transformer temperature offices, it is characterized in that the inwall of described inner sleeve (3) and the external surface shape of dry-type transformer core limb are complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201573657U CN202093118U (en) | 2010-12-31 | 2011-05-17 | Compound sensor for temperature and partial discharge of dry-type transformer |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020694536.5 | 2010-12-31 | ||
| CN201020694536 | 2010-12-31 | ||
| CN2011201573657U CN202093118U (en) | 2010-12-31 | 2011-05-17 | Compound sensor for temperature and partial discharge of dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202093118U true CN202093118U (en) | 2011-12-28 |
Family
ID=45368178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201573657U Expired - Fee Related CN202093118U (en) | 2010-12-31 | 2011-05-17 | Compound sensor for temperature and partial discharge of dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202093118U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410368A (en) * | 2016-11-16 | 2017-02-15 | 中科微声（天津）传感技术有限公司 | Multifunctional antenna |
-
2011
- 2011-05-17 CN CN2011201573657U patent/CN202093118U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410368A (en) * | 2016-11-16 | 2017-02-15 | 中科微声（天津）传感技术有限公司 | Multifunctional antenna |
| CN106410368B (en) * | 2016-11-16 | 2023-09-22 | 苏州光声纳米科技有限公司 | Multifunctional antenna |
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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: 20111228 Termination date: 20140517 |