CN100399034C - High-voltage pulse resistance voltage divider - Google Patents
High-voltage pulse resistance voltage divider Download PDFInfo
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- CN100399034C CN100399034C CNB2005100941379A CN200510094137A CN100399034C CN 100399034 C CN100399034 C CN 100399034C CN B2005100941379 A CNB2005100941379 A CN B2005100941379A CN 200510094137 A CN200510094137 A CN 200510094137A CN 100399034 C CN100399034 C CN 100399034C
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Abstract
The present invention relates to a resistance voltage divider of high voltage pulse, particularly to a device which can effectively reduce the response time of the step response of a resistance voltage divider and improve the performance of the resistance voltage divider. The present invention is suitable for the measurement of the high voltage pulse. An outer shielding cover (9) of the resistance voltage divider forms a hollow tube shape. A first-stage high voltage arm resistor (1) is arranged in the outer shielding cover (9). An insulating sleeve tube (2) is sheathed on the exterior of the first-stage high voltage arm resistor (1), one end is sheathed with a sleeve tube electrode (3), and both of the two ends are respectively supported in the outer shielding cover (9) by a high voltage arm support frame (4). The outer end of the first-stage high voltage arm resistor (1) is connected with a high voltage input electrode (10), and the inner end is connected with the sleeve tube electrode (3). The first-stage high voltage arm resistor (1), a second-stage high voltage arm resistor (6), a second-stage low voltage arm resistor (7) and an output electrode (8) of the resistance voltage divider are arranged between the bottom of the outer shielding cover (9) and the high voltage arm support frame (4).
Description
Technical field
The present invention is a kind of response time that can effectively reduce resitstance voltage divider step response, improves the device of the performance of voltage divider, is applicable to the measurement of high voltage pulse, belongs to the high voltage measuring technical field.
Background technology
The error that resitstance voltage divider is produced when measuring surge voltage is with resistance with the product of stray capacitance is relevant over the ground.So can and reducing over the ground by the reduction resistance, the approach of stray capacitance reduces error.But resistance is too small, and on the one hand generator being produced shock wave can be influential, and because of being difficult to the vibration between remaining inductance of damping and the stray capacitance, the step response that is produced can produce higher overshoot on the other hand.So reducing measuring error mainly is to be conceived to reduce the size and the influence of stray capacitance over the ground.Common way is: add shading ring at high-pressure side, utilize the stray capacitance current segment compensation of circulation between the voltage divider body by the stray capacitance electric current of voltage divider bulk flow to ground, thereby the voltage that improves on the voltage divider distributes; The size of dwindling voltage divider is to reduce stray capacitance over the ground.The former will increase the total lateral dimensions of voltage divider greatly, and the latter will be subjected to the restriction of operating voltage.So must take more efficiently indemnifying measure.
Summary of the invention
Technical matters: the objective of the invention is to propose a kind of high-voltage pulse resistance voltage divider, this voltage divider can reduce voltage divider high-voltage arm stray capacitance over the ground, reduction is by the stray capacitance electric current of voltage divider bulk flow to ground, make the controllable structure of step response overshoot simultaneously, effectively reduce the response time, thereby improve the performance of voltage divider.
Technical scheme: the outer radome of high-voltage pulse resistance voltage divider of the present invention is a hollow tubular, in outer radome, be provided with first order high-voltage arm resistance, outside at first order high-voltage arm resistance is with insulating sleeve, end at insulating sleeve is with the sleeve electrode, the two ends of insulating sleeve respectively by the high-voltage arm stent support in outer radome, be connected with the high pressure input utmost point in the outer end of first order high-voltage arm resistance, the inner coupling sleeve electrode of first order high-voltage arm resistance is provided with first order low-voltage arm resistance between the bottom of outer radome and high-voltage arm support, second level high-voltage arm resistance, second level low-voltage arm resistance, the voltage divider output stage; The outer radome of a termination of first order low-voltage arm resistance wherein, another termination sleeve electrode; After second level high-voltage arm resistance, second level low-voltage arm resistance are in series, its two ends connect outer radome and sleeve electrode respectively, the tie point of second level high-voltage arm resistance, second level low-voltage arm resistance is connected to the voltage divider output stage, and the other end of voltage divider output stage is drawn outside the outer radome.First order low-voltage arm resistance, second level high-voltage arm resistance, second level low-voltage arm resistance are noninductive metal oxidation resistance, and first order high-voltage arm resistance is the noninductive glass glaze film resistor of the bar-shaped high frequency of RI type high pressure.
Low pressure end at the voltage divider high-voltage arm adds the sleeve electrode, forms afflux electric capacity, reduces high-voltage arm stray capacitance over the ground, improves the performance of resitstance voltage divider.
Beneficial effect:
1. reduce step response time greatly, compare under the no overshoot condition when not adding the sleeve electrode and can reduce more than the 3ns;
2. length or the diameter by the regulating sleeve electrode can change the step response overshoot, thereby changes rising edge, to satisfy the needs of different measuring;
3. the length of sleeve electrode is generally less than 40% of first order high-voltage arm resistance length overall, obviously shields around-France superior than high-pressure stage at aspects such as insulation, safety;
4. simple for structure.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Have among Fig. 1: first order high-voltage arm resistance 1; Insulating sleeve 2; Sleeve electrode 3; High-voltage arm support 4; First order low-voltage arm resistance 5; Second level high-voltage arm resistance 6; Second level low-voltage arm resistance 7; Voltage divider output stage 8; Outer radome 9; The high pressure input utmost point 10.
Embodiment
The outer radome 9 of high-voltage pulse resistance voltage divider of the present invention is a hollow tubular, in outer radome 9, be provided with first order high-voltage arm resistance 1, outside at first order high-voltage arm resistance 1 is with insulating sleeve 2, end at insulating sleeve 2 is with sleeve electrode 3, the two ends of insulating sleeve 2 are supported in the outer radome 9 by high-voltage arm support 4 respectively, be connected with the high pressure input utmost point 10 in the outer end of first order high-voltage arm resistance 1, the inner coupling sleeve electrode 3 of first order high-voltage arm resistance 1 is provided with first order low-voltage arm resistance 5 between the bottom of outer radome 9 and high-voltage arm support 4, second level high-voltage arm resistance 6, second level low-voltage arm resistance 7, voltage divider output stage 8; The outer radome 9 of a termination of first order low-voltage arm resistance 5 wherein, another termination sleeve electrode 3; After second level high-voltage arm resistance 6, second level low-voltage arm resistance 7 are in series, its two ends connect outer radome 9 and sleeve electrode 3 respectively, the tie point of second level high-voltage arm resistance 6, second level low-voltage arm resistance 7 is connected to voltage divider output stage 8, and the other end of voltage divider output stage 8 is drawn outside the outer radome 9.First order low-voltage arm resistance 5, second level high-voltage arm resistance 6, second level low-voltage arm resistance 7 are noninductive metal oxidation resistance, and first order high-voltage arm resistance is the noninductive glass glaze film resistor of the bar-shaped high frequency of RI type high pressure.
Low pressure end at high-voltage arm inserts sleeve electrode (copper), reduces high-voltage arm stray capacitance over the ground, improves the steepness of step response, reduces the response time, adjusts the length or the diameter of sleeve, the overshoot of scalable response curve.
Claims (1)
1. high-voltage pulse resistance voltage divider, the outer radome (9) that it is characterized in that this voltage divider is a hollow tubular, in outer radome (9), be provided with first order high-voltage arm resistance (1), be with insulating sleeve (2) in the outside of first order high-voltage arm resistance (1), end at insulating sleeve (2) is with sleeve electrode (3), the two ends of insulating sleeve (2) are supported in the outer radome (9) by high-voltage arm support (4) respectively, be connected with the high pressure input utmost point (10) in the outer end of first order high-voltage arm resistance (1), the inner coupling sleeve electrode (3) of first order high-voltage arm resistance (1) is provided with first order low-voltage arm resistance (5) between the bottom of outer radome (9) and high-voltage arm support (4), second level high-voltage arm resistance (6), second level low-voltage arm resistance (7), voltage divider output stage (8); The outer radome (9) of a termination of first order low-voltage arm resistance (5) wherein, another termination sleeve electrode (3); After second level high-voltage arm resistance (6), second level low-voltage arm resistance (7) are in series, its two ends connect outer radome (9) and sleeve electrode (3) respectively, the tie point of second level high-voltage arm resistance (6), second level low-voltage arm resistance (7) is connected to voltage divider output stage (8), the other end of voltage divider output stage (8) is drawn outside the outer radome (9), low pressure end at high-voltage arm inserts sleeve electrode (3), form afflux electric capacity, improve the steepness of step response, reduce the response time, adjust the length or the diameter of sleeve, the overshoot of scalable response curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100941379A CN100399034C (en) | 2005-08-31 | 2005-08-31 | High-voltage pulse resistance voltage divider |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100941379A CN100399034C (en) | 2005-08-31 | 2005-08-31 | High-voltage pulse resistance voltage divider |
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| CN1731195A CN1731195A (en) | 2006-02-08 |
| CN100399034C true CN100399034C (en) | 2008-07-02 |
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| CNB2005100941379A Expired - Fee Related CN100399034C (en) | 2005-08-31 | 2005-08-31 | High-voltage pulse resistance voltage divider |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101074972B (en) * | 2006-05-15 | 2010-05-12 | 北京瑞恒超高压电器研究所 | Capacitance mask resistance sensor |
| 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 |
| CN101762733B (en) * | 2010-01-08 | 2012-07-18 | 中国电力科学研究院 | Design method of high-impedance broadband high-voltage voltage divider |
| CN101893650B (en) * | 2010-06-25 | 2013-06-19 | 中国电力科学研究院 | Voltage measurement device for high-voltage direct-current power transmission valve assembly |
| CN102169132B (en) * | 2011-04-02 | 2013-02-27 | 烟台东方威思顿电气有限公司 | High-impedance high-temperature stability high-voltage bleeder |
| CN102735895B (en) * | 2012-06-05 | 2013-12-11 | 平高集团有限公司 | Capacitive voltage divider |
| CN103515037B (en) * | 2012-10-15 | 2016-12-21 | 上海市计量测试技术研究院 | The skeleton of a kind of high-voltage arm and Resistor Divider for Impulse Voltage Measurements |
| CN103513081B (en) * | 2012-10-15 | 2016-05-18 | 上海市计量测试技术研究院 | A kind of resistor-type impulse voltage divider of high accuracy fast-response |
| CN103197110B (en) * | 2013-03-20 | 2015-11-04 | 陈志强 | A kind of half flexible high-power entity resitstance voltage divider |
| CN103245821B (en) * | 2013-05-27 | 2015-07-01 | 安徽一天电气技术有限公司 | Wideband voltage signal acquisition device |
| CN104459262A (en) * | 2014-12-04 | 2015-03-25 | 中国西电电气股份有限公司 | High-voltage measuring resistance voltage divider |
| CN113567724B (en) * | 2021-07-26 | 2023-06-30 | 江苏警官学院 | Nanosecond-level fast-front high-voltage secondary voltage division measuring device and voltage division method |
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