CN2280914Y - Anti-interference sensor - Google Patents
Anti-interference sensor Download PDFInfo
- Publication number
- CN2280914Y CN2280914Y CN 95240933 CN95240933U CN2280914Y CN 2280914 Y CN2280914 Y CN 2280914Y CN 95240933 CN95240933 CN 95240933 CN 95240933 U CN95240933 U CN 95240933U CN 2280914 Y CN2280914 Y CN 2280914Y
- Authority
- CN
- China
- Prior art keywords
- sensor
- shielding layer
- field shielding
- electric field
- insulation lining
- 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.)
- Expired - Fee Related
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- Testing Relating To Insulation (AREA)
Abstract
The utility model relates to a sensor used for collecting monitoring signals of high-voltage variable distributing equipment. The sensor is mainly composed of a casing, a sensor coil, a switching relay, etc. The sensor is characterized in that the inner part of the casing of the sensor is provided with an inner sealing clapboard which seals the sensor coil in the casing. The casing is also provided with a heat insulation lining, a lining sealing cover, an electric field screening layer, and a magnetic field screening layer, so the sensor can not be influenced by electricity, magnetism and temperature when working under the environment of high and strong electromagnetic field. The sensor is provided with very high anti-jamming capability. The sensor is suitable for collecting tracking and testing signals of variable distributing equipment of power systems.
Description
The utility model is a kind of sensor that is used to gather high voltage variable controller switching equipment monitor signal.
In the high voltage variable controller switching equipment operational process, the maintainer wants the operation conditions of running check distribution equipment, the general level of the health of monitoring equipment, and the weak output signal that the key of high voltage variable controller switching equipment acquired signal under charged situation is gathered are generally only between uA～mA level.These signals are gathered transmission usually in the high-voltage electromagnetic field of 220KV～500KV, the signal transmission that therefore requires to be gathered should have high antijamming capability.Known to the tool inventor, traditional detection method is to test with electric bridge under high voltage variable controller switching equipment power down mode, and can not understand the health status of equipment in equipment running process.
The purpose of this utility model is: designing one can test under power down mode, also can be under the situation of the normal operation of high voltage variable controller switching equipment acquired signal, the anti-interference sensor that has high strong anti-interference ability, can correctly power frequency, high-frequency signal be reacted at any time.
Accompanying drawing 1 is a front view of the present utility model.
Accompanying drawing 2 is A-A cut-open views of the present utility model.
The utility model is to realize like this, by sensor housing, cell winding, switching relay and resistance, hold the anti-interference sensor that element is formed, it is characterized in that: interior packing plate 17 of design in sensor housing 12, sensor housing is separated into two Room, and be provided with two signal fairleads 1,7, at sensor housing 12 and an insulation of 6 designs of cell winding lining 11, and respectively establish insulation lining capping 13 on interior packing plate 17 two sides, 15, between sensor housing 12 and insulation lining 11, be provided with ground floor electric field shielding layer 2, magnetic field shielding layer 3 and second layer electric field shielding layer 4 are provided with the 3rd layer of electric field shielding layer 8 between insulation lining 11 and cell winding 6.On set interior packing plate 17, also be provided with two signal leading-out terminals and two switching relay driving voltage terminals 14,16.Insulation lining 11 is located in the compartment of sensor housing 12, is provided with the standing groove that coincide with cell winding 6 and switching relay 5 profiles in the insulation lining 11.
The utility model is in order to resist the influence to acquired signal of high strong-electromagnetic field and temperature, adopt aluminium pool material to make the electric field shielding layer, outermost layer is provided with ground floor electric field shielding layer 2 in sensor housing, use silicon (silicon) steel disc to make magnetic field shielding layer 3 then, after the magnetic field shielding layer, be provided with second layer electric field shielding layer 4 back again and place the insulation lining 11 of using the polyfoam compression molding, in the cell winding standing groove of insulation lining, the 3rd layer of electric field shielding layer 8 is set, place cell winding 6 then, sensing coil is enclosed within on the cylindricality entrance hole 19.Extension line is connected on the signal leading-out terminal of interior packing plate, draws through signal fairlead 1 or 7 from terminal to pick out to rearmounted measuring instrument.Simultaneously the switching relay coil lead is connected on the driving voltage terminal of interior packing plate.Cover capping 13 in the insulation lining.With interior packing plate 17 fixing back epoxy resin sealing.Like this sensor 6 parts such as grade are locked in the housing, connect extension line by the terminal on the interior packing plate.Cover capping 15 in another piece insulation lining again, last sealing housing enclosing cover 18.
The utility model disturbing factor has after measured been reduced to negligible effect.This sensor not only can cooperate electric bridge to detect (promptly detecting with traditional electric bridge detection method) under power down mode, the more important thing is that it can charged collection output signal provide monitor signal accurately for back level automatization test system.It is applicable to that the distribution equipment of electric system detects.Wide application market and practical value are arranged.
Accompanying drawing the 1, the 2nd, specific embodiment of the utility model, during use sensor is installed in (ground wire is penetrated the back from cylindricality entrance hole 19 draws from signal extension line hole) on the ground wire of distribution equipment, the signal extension line of sensor is connected to rearmounted measuring instrument system.Indicate in the accompanying drawing and be described as follows:
1, signal extension line hole, 2, ground floor electric field shielding layer, 3, the magnetic field shielding layer, 4, second layer electric field shielding layer, 5, switching relay, 6, cell winding, 7, signal extension line hole, 8, the 3rd layers of electric field shielding layer, 9,10, resistance, hold element, 11, insulation lining, 12, housing, 13, capping in the insulation lining, 14, terminal, 15, capping in the insulation lining, 16, terminal, 17, interior packing plate, 18, the housing enclosing cover, 19, the cylindricality entrance hole.
Claims (3)
1. an anti-interference sensor is made up of sensor housing, cell winding, switching relay and resistance, appearance element, it is characterized in that:
A. interior packing plate of design in the sensor housing is separated into two Room with housing, and is provided with two signal extension line holes;
B. one of design is incubated lining between sensor housing and cell winding, and respectively establishes the capping of an insulation lining on liner dividing plate two sides;
C. be provided with ground floor electric field shielding layer, magnetic field shielding layer and second layer electric field shielding layer between sensor housing and the insulation lining, be provided with the 3rd layer of electric field shielding layer between insulation lining and the cell winding.
2. anti-interference sensor according to claim 1 is characterized in that: interior packing plate is provided with two signal leading-out terminals and two switching relay driving voltage terminals.
3. anti-interference sensor according to claim 1 is characterized in that: the insulation lining is provided with the standing groove that coincide with cell winding and switching relay profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95240933 CN2280914Y (en) | 1995-11-24 | 1995-11-24 | Anti-interference sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95240933 CN2280914Y (en) | 1995-11-24 | 1995-11-24 | Anti-interference sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2280914Y true CN2280914Y (en) | 1998-05-06 |
Family
ID=33882420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95240933 Expired - Fee Related CN2280914Y (en) | 1995-11-24 | 1995-11-24 | Anti-interference sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2280914Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102656648A (en) * | 2009-12-17 | 2012-09-05 | 丰田自动车株式会社 | Shield and vehicle whereupon same is mounted |
-
1995
- 1995-11-24 CN CN 95240933 patent/CN2280914Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102656648A (en) * | 2009-12-17 | 2012-09-05 | 丰田自动车株式会社 | Shield and vehicle whereupon same is mounted |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |