CN2539968Y - Electronic type voltage sensor - Google Patents
Electronic type voltage sensor Download PDFInfo
- Publication number
- CN2539968Y CN2539968Y CN 02211228 CN02211228U CN2539968Y CN 2539968 Y CN2539968 Y CN 2539968Y CN 02211228 CN02211228 CN 02211228 CN 02211228 U CN02211228 U CN 02211228U CN 2539968 Y CN2539968 Y CN 2539968Y
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- CN
- China
- Prior art keywords
- voltage divider
- root
- connection terminal
- tree name
- described electronic
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Abstract
An electronic voltage sensor is characterized in that a resistor voltage divider is arranged in a casting body and is fixed on the resistor support, two ends of the resistor voltage divider are separately connected with the primary wire connecting terminal and grounding piece of the casting body, the output terminal of the resistor voltage divider is connected with the secondary wire connecting terminal, and a shielding case is arranged outside the resistor voltage divider. The utility model is characterized in that: a wide range of measurement, high precision, good input and output linearity, no magnetic saturation or ferromagnetic resonance phenomenon, safe and reliable operation; complete functions and easy usage, being used as a sensor component for measurement and protection in the electronic systems, small size, light weight, high cost-performance, no noise pollution, anti-interference and superior environmental characteristics.
Description
Technical field the utility model relates to a kind of electrical equipment, especially for the electronic voltage transducer of voltage measurement and enforcement relay protection.
Background technology is in electric system; electromagnetic transformer is mostly adopted in the measurement of voltage and enforcement relay protection; the problem that this mutual inductor exists is that volume is big, Heavy Weight; measurement range is narrower; the ferroresonance phenomenon takes place easily; increase measuring error and the misoperation that causes protective relaying device, also potential safety hazard can take place when serious.At present, continuous development along with electric system, the continuous increase of power capacity and electronic system develop to networking, robotization and digitizing direction, and the required input signal of secondary device significantly reduces, and therefore this traditional electromagnetic potential transformer is difficult to satisfy technical requirement.
The summary of the invention the purpose of this utility model is to provide the electronic voltage transducer that a kind of measurement range is wide, precision is high, linear feature is good.
The purpose of this utility model is achieved in that a kind of electronic voltage transducer, it is characterized in that in pour mass, being provided with resitstance voltage divider, resitstance voltage divider is fixed on the resistance support member, its two ends respectively be located at pour mass on primary connection terminal and earthing member be connected, the output terminal of resitstance voltage divider is connected with the secondary connection terminal, and the outside of resitstance voltage divider is provided with radome.
Described resitstance voltage divider is wound on the resistance support member from top to bottom, and its two ends are connected with the ground connection inserts with the primary connection terminal that is embedded in the pour mass upper and lower side respectively.
Described primary connection terminal and ground connection inserts are the web member that has internal thread, and it is embedded in the upper and lower end of sensor pour mass.
The outline of described sensor pour mass is a column, has full skirt on it.
Be provided with the buffer insulation layer in the outside of radome.
The output terminal of resitstance voltage divider is connected with the secondary terminal with shielded cable.
The end of described radome netting twine outside shielded cable is connected with the bell housing of secondary terminal.
Be connected with the external shield cable on the secondary connection terminal, the other end of external shield cable has the connector that can conveniently connect.
The utility model is based on the electric resistance partial pressure principle and manufactures and form, by the precision resister voltage divider, with the low-voltage of high-voltage variable for satisfying the various functional requirements of digital two sub-cells and being directly proportional of power transmission network, thereby replaced traditional electromagnetic potential transformer with it.Because voltage sensor iron-free magnetic saturation and resonance phenomena in whole measurement range, input and output linearity degree is good, therefore uses with digital secondary unit matching, can improve measuring accuracy and reliability widely.The utility model is to adopt noninductive winding to be wound on from top to bottom by organic insulation the precision resister voltage divider to make on the resistance support member with definite shape, also can adopt alternate manner to be fixed on the resistance support member, the top and bottom of resitstance voltage divider are connected with the ground connection inserts with the connection terminal that is embedded in the pour mass end respectively, outside at resitstance voltage divider is provided with metallic shield, the end of cover is connected with the bell housing of secondary terminal by the outer netting twine of shielded cable, form good electromagnetic shielding action, improve its antijamming capability.The outside of cover is provided with the buffer insulation layer.Adopt organic insulation that above-mentioned resitstance voltage divider, radome, connection terminal are poured into an integrated entity, the outline of its pour mass is cylindric, has umbrella on it.There is the metallic shield cover outside that is positioned at the secondary connection terminal of pour mass side-lower, is connected with the external shield cable on the secondary connection terminal, and the end of line has connector, to be connected with digital two sub-cells easily.
Characteristics of the present utility model are:
1 measurement range is wide, the precision height, the input, output the linearity good;
2 no magnetic saturation and ferroresonance phenomenon, it is safe and reliable to operation;
3 is multiple functional, easy to use, can be used as the measurement of electronic system and the sensing element of protection usefulness;
4 volumes are little, and are in light weight, ratio of performance to price height;
5 noise-less pollutions, anti-interference, have superior environmental protection characteristic;
6 can satisfy the measurement of electric system and protection to the needs of digitizing, intellectuality, web development.
Description of drawings Fig. 1 is a structural representation of the present utility model.
Be described in further detail below in conjunction with accompanying drawing.
Embodiment as shown in Figure 1, electronic voltage transducer has adopted high-precision resitstance voltage divider 1, it is wound on adopts organic insulation to pour into a mould on the column resistance support member 2 that forms, the two ends up and down of resitstance voltage divider are connected with ground connection inserts 5 with the primary connection terminal 4 that is embedded in pour mass 3 two ends respectively, and primary connection terminal and ground connection inserts are that the web member with internal thread is the attaching nut.Be provided with metallic shield 6 in the outside of resitstance voltage divider, isolate by the organic insulation of cast between the two.The outside of cover is wound with insulating material, constitutes buffer insulation layer 7.Openend netting twine 8 outside shielded cable of cover is connected with the bell housing 11 of secondary terminal, improves its antijamming capability.The output terminal of resitstance voltage divider is connected with the secondary connection terminal 10 that is positioned at the pour mass below by shielded cable 9, and the outside of secondary connection terminal is provided with metallic shield cover 11.Can be connected with the shielded cable that a certain-length (being generally about 4 meters) and an end have connector on the secondary connection terminal, so that it is connected with equipment easily.Because the live part of this sensor is equipped with shielding protection, guaranteed the electromagnetic compatibility with miscellaneous equipment, further improved the measuring accuracy of sensor.
Claims (8)
1, a kind of electronic voltage transducer, it is characterized in that in pour mass, being provided with resitstance voltage divider, resitstance voltage divider is fixed on the resistance support member, its two ends respectively be located at pour mass on primary connection terminal and earthing member be connected, the output terminal of resitstance voltage divider is connected with the secondary connection terminal, and the outside of resitstance voltage divider is provided with radome.
2, the described electronic voltage transducer of root a tree name claim 1 is characterized in that described resitstance voltage divider is wound on the resistance support member from top to bottom, and its two ends are connected with the ground connection inserts with the primary connection terminal that is embedded in the pour mass upper and lower side respectively.
3, root a tree name claim 1,2 described electronic voltage transducers is characterized in that described primary connection terminal and ground connection inserts are the web member that has internal thread, and it is embedded in the upper and lower end of sensor pour mass.
4, the described electronic voltage transducer of root a tree name claim 1 is characterized in that the outline of described sensor pour mass is a column, has full skirt on it.
5, the described electronic voltage transducer of root a tree name claim 1 is characterized in that being provided with the buffer insulation layer in the outside of radome.
6, the described electronic voltage transducer of root a tree name claim 1 is characterized in that the output terminal of resitstance voltage divider is connected with the secondary terminal with shielded cable.
7, the described electronic voltage transducer of root a tree name claim 1 is characterized in that end netting twine outside shielded cable of described radome is connected with the bell housing of secondary terminal.
8, the described electronic voltage transducer of root a tree name claim 1 is characterized in that being connected with the external shield cable on the secondary connection terminal, and the other end of external shield cable has the connector that can conveniently connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02211228 CN2539968Y (en) | 2002-04-12 | 2002-04-12 | Electronic type voltage sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02211228 CN2539968Y (en) | 2002-04-12 | 2002-04-12 | Electronic type voltage sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2539968Y true CN2539968Y (en) | 2003-03-12 |
Family
ID=33691189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02211228 Expired - Fee Related CN2539968Y (en) | 2002-04-12 | 2002-04-12 | Electronic type voltage sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2539968Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901681B (en) * | 2009-05-26 | 2012-04-25 | 廊坊高山电子科技有限公司 | 10 kV passive electronic voltage transformer |
| CN105629017A (en) * | 2014-11-03 | 2016-06-01 | 西安华伟光电技术有限公司 | High-voltage direct-current voltage divider standardized assembly |
-
2002
- 2002-04-12 CN CN 02211228 patent/CN2539968Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901681B (en) * | 2009-05-26 | 2012-04-25 | 廊坊高山电子科技有限公司 | 10 kV passive electronic voltage transformer |
| CN105629017A (en) * | 2014-11-03 | 2016-06-01 | 西安华伟光电技术有限公司 | High-voltage direct-current voltage divider standardized assembly |
| CN105629017B (en) * | 2014-11-03 | 2018-04-13 | 西安华伟光电技术有限公司 | A kind of high voltage direct current divider standard package |
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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: 20030312 Termination date: 20100412 |