CN102565486A - Resistance voltage divider - Google Patents
Resistance voltage divider Download PDFInfo
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- CN102565486A CN102565486A CN2010105979176A CN201010597917A CN102565486A CN 102565486 A CN102565486 A CN 102565486A CN 2010105979176 A CN2010105979176 A CN 2010105979176A CN 201010597917 A CN201010597917 A CN 201010597917A CN 102565486 A CN102565486 A CN 102565486A
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- divider
- resistor string
- divider resistor
- voltage divider
- resistance voltage
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Abstract
A resistance voltage divider relates to a component for voltage measurement in the electric industry, in particular to a resistance voltage divider applied to a sensor. The resistance voltage divider comprises a divider resistor string, an insulator (2) encapsulating the divider resistor string (1) encapsulated at the periphery of the divider resistor string, a voltage signal wire (3) led out of the divider resistor string (1), and upper and lower electrodes (4 and 5) arranged at two ends, wherein a ceramic base body (6) is arranged at the periphery of the insulator (2); a resistive film (7) is arranged on the outer surface of the ceramic base body (6); and the resistive film (7) and the divider resistor string (1) change according to the same voltage variation gradient, so that the divider resistor string (1) is placed in an external idiostatic equipotential electric field. Through the arrangement, the interference to the divider resistor string (1) from the external electric field can be effectively shielded, so as to improve the ratio error stability of the sensor, reduce the capacity effect between a shielding layer and the divider resistor string (1) and effectively reduce the fixed deviation of angular difference of signals. The resistance voltage divider has the advantages of simple structure, low cost and higher performances.
Description
Technical field
The present invention relates to be used in a kind of power industry the parts of voltage measurement, especially relate to a kind of resitstance voltage divider that applies to sensor.
Background technology
Resitstance voltage divider in the sensor is a kind of high-voltage signal to be taken a sample, the parts that the low tension voltage of signals that is changed is on year-on-year basis measured.The mode that resitstance voltage divider in the common sensor adopts the two poles of the earth conductor shielding mode or bypass resistance classification that the equipotentiality pole plate is set is provided with; Before a kind of screen layer and the capacity effect of winning the confidence between the resistance string of structure apparent in view; Cause the angular difference droop of signal bigger; A kind of structure in back can not effectively shield the interference of external electric field to power taking signal resistance string, and then influences the ratio degree of stability of sensor.For example, high-voltage precise resistance divider and method for making 200910084858.X have announced a kind of method for making of making high-voltage precise resistance divider, but how evenly not to relate to divider resistance crosstalk field and the method that prevents that stray capacitance from disturbing.The stability of practical application is difficult to guarantee.And for example; Equipotential cavity precise high-voltage sensor 200810231719.0 discloses a kind of with equalizing resistance body and multistage sensor of all pressing the equipotentiality chamber encirclement resitstance voltage divider of pole plate; Longitudinal electric field to the uniformly-coating voltage divider distributes, and reduces angular difference and plays useful effect.But stray capacitance interference around the voltage divider is not had shielding action, can cause the stable not good enough of ratio.
Summary of the invention
To the problems referred to above, the invention provides a kind of simple and reasonablely, can effectively improve the ratio degree of stability of sensor and reduce the resitstance voltage divider of the angular difference droop of signal.
The technical scheme that the present invention is adopted for its technical matters of solution is:
A kind of resitstance voltage divider; Comprise the divider resistance string; Voltage signal line that is potted in the peripheral insulator of divider resistance string, draws from the divider resistance string and the upper and lower electrode that is arranged on two ends, the outer periphery of said insulator is equipped with ceramic matrix, and the outside surface of said ceramic matrix is provided with resistive film.
Further, said ceramic matrix is an annular.
Further, said upper and lower electrode is set in the upper and lower end parts of ceramic matrix respectively.
Further, said voltage signal line is the signal lead of band shielding.
The invention has the beneficial effects as follows: the present invention is provided with ceramic matrix in resistance string insulator periphery; The outside surface of ceramic matrix is provided with resistive film; This resistive film and divider resistance string; By identical change in voltage graded, the divider resistance tandem arrangement that makes the inside number of winning the confidence is among the electric field of the outside coordination equipotentiality of even variation surrounds; This setting is provided with the mode of equipotentiality pole plate than the bypass resistance classification, can effectively shield the interference of external electric field to the number of winning the confidence resistance string, and then effectively improve the ratio degree of stability of sensor; More traditional the two poles of the earth conductor shielding mode can reduce screen layer and the capacity effect between the resistance string of winning the confidence, and then effectively reduces the angular difference droop of signal.Generally speaking simple in structure, with low cost, performance is higher.
Description of drawings
Below in conjunction with accompanying drawing and specific embodiment the present invention is described further:
Fig. 1 is the cut-open view of the embodiment of the invention.
Embodiment
With reference to Fig. 1; A kind of resitstance voltage divider of the present invention; Comprise divider resistance string 1, be potted in the peripheral insulator 2 of divider resistance string, the voltage signal line 3 of drawing from divider resistance string 1 and the upper and lower electrode 4,5 that is arranged on two ends, the outer periphery of said insulator 2 is equipped with ceramic matrix 6; This ceramic matrix 6 can be set to annular, and the outer periphery of said ceramic matrix 6 is equipped with resistive film 7.
Above-mentioned upper and lower electrode 4,5 is set in the upper and lower end parts of ceramic matrix 6 respectively, and the high-pressure side of said divider resistance string 1 links to each other with top electrode 4, and the low pressure end of said divider resistance string 1 links to each other with bottom electrode 5.
The above-mentioned voltage signal line 3 of stating can be the signal lead that band shields.
More than be that preferable enforcement of the present invention is specified; But the invention is not limited to said embodiment; Those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite of spirit of the present invention, distortion that these are equal to or replacement all are included in the application's claim institute limited range.
Claims (4)
1. resitstance voltage divider; Comprise the divider resistance string; Voltage signal line that is potted in the peripheral insulator of divider resistance string, draws from the divider resistance string and the upper and lower electrode that is arranged on two ends; It is characterized in that: the outer periphery of said insulator is equipped with ceramic matrix, and the outside surface of said ceramic matrix is provided with resistive film.
2. a kind of resitstance voltage divider according to claim 1 is characterized in that: said ceramic matrix is an annular.
3. a kind of resitstance voltage divider according to claim 1 and 2 is characterized in that: said upper and lower electrode is set in the upper and lower end parts of ceramic matrix respectively.
4. a kind of resitstance voltage divider according to claim 1 and 2 is characterized in that: said voltage signal line is the signal lead of band shielding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105979176A CN102565486A (en) | 2010-12-21 | 2010-12-21 | Resistance voltage divider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105979176A CN102565486A (en) | 2010-12-21 | 2010-12-21 | Resistance voltage divider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102565486A true CN102565486A (en) | 2012-07-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105979176A Pending CN102565486A (en) | 2010-12-21 | 2010-12-21 | Resistance voltage divider |
Country Status (1)
| Country | Link |
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| CN (1) | CN102565486A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830257A (en) * | 2012-08-01 | 2012-12-19 | 江苏博斯特科技电力有限公司 | High-voltage resistor type voltage dividing device |
| CN107037249A (en) * | 2017-05-17 | 2017-08-11 | 李健 | A kind of pair of intrinsic standoff ratio glass glaze film divider |
| CN107870298A (en) * | 2017-11-29 | 2018-04-03 | 深圳市锐能微科技有限公司 | Circuit parameter detection circuit, method and the electric energy meter of a kind of bleeder circuit |
| CN109991463A (en) * | 2019-04-19 | 2019-07-09 | 河北润志电气设备有限公司 | A kind of AC voltage sensor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0320676A (en) * | 1989-03-17 | 1991-01-29 | Fuji Electric Co Ltd | Electrolyte resistor type voltage divider |
| CN2626041Y (en) * | 2003-06-27 | 2004-07-14 | 沈阳工业大学 | Resistor type voltage divider for high-voltage circuit breaker |
| CN101614766A (en) * | 2009-07-29 | 2009-12-30 | 河南电力试验研究院 | A kind of circuit that is used to eliminate voltage measurement error of high voltage standard capacitor divider |
| CN201819941U (en) * | 2010-10-14 | 2011-05-04 | 珠海威瀚科技发展有限公司 | Resistance voltage divider |
-
2010
- 2010-12-21 CN CN2010105979176A patent/CN102565486A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0320676A (en) * | 1989-03-17 | 1991-01-29 | Fuji Electric Co Ltd | Electrolyte resistor type voltage divider |
| CN2626041Y (en) * | 2003-06-27 | 2004-07-14 | 沈阳工业大学 | Resistor type voltage divider for high-voltage circuit breaker |
| CN101614766A (en) * | 2009-07-29 | 2009-12-30 | 河南电力试验研究院 | A kind of circuit that is used to eliminate voltage measurement error of high voltage standard capacitor divider |
| CN201819941U (en) * | 2010-10-14 | 2011-05-04 | 珠海威瀚科技发展有限公司 | Resistance voltage divider |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830257A (en) * | 2012-08-01 | 2012-12-19 | 江苏博斯特科技电力有限公司 | High-voltage resistor type voltage dividing device |
| CN107037249A (en) * | 2017-05-17 | 2017-08-11 | 李健 | A kind of pair of intrinsic standoff ratio glass glaze film divider |
| CN107870298A (en) * | 2017-11-29 | 2018-04-03 | 深圳市锐能微科技有限公司 | Circuit parameter detection circuit, method and the electric energy meter of a kind of bleeder circuit |
| CN107870298B (en) * | 2017-11-29 | 2023-09-05 | 深圳市锐能微科技有限公司 | Circuit parameter detection circuit and method of voltage dividing circuit and electric energy meter |
| CN109991463A (en) * | 2019-04-19 | 2019-07-09 | 河北润志电气设备有限公司 | A kind of AC voltage sensor |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120711 |