CN201181327Y - High Voltage Standard Dissipator - Google Patents
High Voltage Standard Dissipator Download PDFInfo
- Publication number
- CN201181327Y CN201181327Y CNU2008200353728U CN200820035372U CN201181327Y CN 201181327 Y CN201181327 Y CN 201181327Y CN U2008200353728 U CNU2008200353728 U CN U2008200353728U CN 200820035372 U CN200820035372 U CN 200820035372U CN 201181327 Y CN201181327 Y CN 201181327Y
- Authority
- CN
- China
- Prior art keywords
- dielectric loss
- voltage
- standard
- capacitor
- resistor
- 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 - Lifetime
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000004743 Polypropylene Substances 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 229930091051 Arenine Natural products 0.000 claims 2
- 238000009434 installation Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 7
- 238000012795 verification Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 229910018503 SF6 Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
Abstract
本实用新型公开了一种采用可变电容的方法用来检定自动介质损耗测试仪的装置，包括一个额定电压为10kV的标准电容器Cn和电阻R，并且两者相串联，并分别在两端各设有一接线端，电阻部分设置有至少两个不同电阻值的电阻及转换开关K，转换开关可以切换不同量程的介质损耗量。
The utility model discloses a device for verifying an automatic dielectric loss tester by adopting a variable capacitance method, which comprises a standard capacitor Cn with a rated voltage of 10kV and a resistor R, and the two are connected in series, and are connected at both ends respectively. A connection terminal is provided, and the resistance part is provided with at least two resistors with different resistance values and a changeover switch K, the changeover switch can switch between different ranges of dielectric loss.
Description
技术领域： Technical field:
本实用新型涉及一种检测电力系统中自动介质损耗测试仪的装置。属于电力系统高压计量检测技术领域。The utility model relates to a device for detecting an automatic dielectric loss tester in a power system. The invention belongs to the technical field of high-voltage measurement and detection of power systems.
背景技术： Background technique:
目前电力系统广泛使用自动介质损耗测试仪来测量电力变压器、电压互感器、电流互感器、电缆、电力电容器等高压设备的介质损耗角tanδ值及电容量。对于这些测量仪的定期检定，确保使用的准确度是计量部门一项频繁而又细微的工作。按DL/T 962--2005《高压介质损耗测试仪通用技术条件》规定，如能有一套用来校验自动介质损耗测试仪的装置，就可以起到事半功倍的效果，我们将这种装置称之为高压标准介损器。At present, the automatic dielectric loss tester is widely used in the power system to measure the dielectric loss angle tanδ value and capacitance of high-voltage equipment such as power transformers, voltage transformers, current transformers, cables, and power capacitors. For the regular verification of these measuring instruments, ensuring the accuracy of the usage is a frequent and delicate job of the metrology department. According to DL/T 962--2005 "General Technical Conditions for High Voltage Dielectric Loss Tester", if there is a device for calibrating the automatic dielectric loss tester, it can achieve twice the result with half the effort. We call this device It is a high voltage standard dielectric loss device.
目前国内仅有采用100pF(皮法)电容档检测的高压标准介损器，尚无一家校准、检定单位采用可变电容的方法对介质损耗测试仪进行检定，使得高压介质损耗测试仪的检定工作存在较大缺陷。At present, there are only high-voltage standard dielectric loss devices that use 100pF (pico method) capacitance level detection in China, and there is no calibration and verification unit that uses variable capacitance to verify the dielectric loss tester, making the verification of the high-voltage dielectric loss tester work. There are major flaws.
发明内容： Invention content:
本实用新型所要要解决的问题就是设计一种采用可变电容的方法检测自动介质损耗测试仪的高压计量检测装置。The problem to be solved by the utility model is to design a high-voltage measurement and detection device that uses a variable capacitance method to detect an automatic dielectric loss tester.
为实现以上目的，本实用新型采取以下的技术方案来实现：To achieve the above purpose, the utility model takes the following technical solutions to achieve:
高压标准介损器，由一个额定电压为10KV的标准电容器Cn和电阻R相串联组成。与标准电容器Cn端相接的Hv端为自动介质损耗仪正接线法使用时的高压端，与电阻端相接的Cx端为自动介质损耗测量仪正接线法使用时的测量端，亦为自动介质损耗测量仪反接线法使用时的高压端兼测量端；其中电阻部分设置有至少两个不同电阻值的电阻及转换开关K，转换开关K可以切换不同量程的介质损耗量。图2中电阻及相应的量程转换开关选用9组。The high-voltage standard dielectric is composed of a standard capacitor Cn with a rated voltage of 10KV and a resistor R connected in series. The Hv end connected to the Cn end of the standard capacitor is the high-voltage end when the automatic dielectric loss meter is used in the positive wiring method, and the Cx end connected to the resistance end is the measurement end when the automatic dielectric loss meter is used in the positive wiring method, which is also the automatic dielectric loss meter. The high-voltage end and measuring end of the dielectric loss measuring instrument when using the reverse wiring method; the resistance part is provided with at least two resistors with different resistance values and a switch K, and the switch K can switch the dielectric loss of different ranges. In Figure 2, the resistors and the corresponding range changeover switches are selected from 9 groups.
根据不同的电阻值可用下面的公式计算出不同的介质损耗角tanδ的值。According to different resistance values, the following formula can be used to calculate the value of different dielectric loss angle tanδ.
tanδ＝2πfRCtanδ=2πfRC
通过下面的步骤可以得到标准电容器Cn、各个电阻R的数值参数：The numerical parameters of the standard capacitor Cn and each resistor R can be obtained through the following steps:
1、在选取介质材料后，先详细测出介电常数ε，要求其测量准确度达±0.05％。用不锈钢板材按一定面积组成简易平板电容，极间距离为1mm，介质为空气。用能保证测量准确度的相应电桥3测量出其电容量C1。而后，用1mm厚的介质材料放在两片极板之间，再次测得其电容量C2，那么可以近似认为：1. After the dielectric material is selected, the dielectric constant ε is measured in detail first, and the measurement accuracy is required to reach ±0.05%. Use stainless steel plates to form simple flat capacitors according to a certain area, the distance between electrodes is 1mm, and the medium is air. Measure its capacitance C1 with the corresponding
ε＝C2/C1ε=C2/C1
2、精确计算各档电容值(C12)相应的电极结构尺寸、极间距离、绝缘柱、联接柱等结构设计。2. Accurately calculate the structural design of the corresponding electrode structure size, distance between electrodes, insulating columns, connecting columns, etc. for each capacitance value (C12).
3、精确测量分布电容C20。3. Accurately measure the distributed capacitance C20.
4、初步计算各档tanδ名义值的相应电阻值。4. Preliminarily calculate the corresponding resistance value of the nominal value of tanδ in each gear.
5、结合分布电容C20，最后调试出各档t anδ名义值的实际所需电阻值。5. Combined with the distributed capacitance C20, finally debug the actual required resistance value of the nominal value of t anδ in each gear.
6、采取屏蔽措施，消除其它杂散分布电容影响。6. Take shielding measures to eliminate the influence of other stray distributed capacitances.
7、选用分布电容小和耐高压的量程转换开关。7. Select the range changeover switch with small distributed capacitance and high voltage resistance.
8、对电容器进行耐压、防潮工艺处理。8. Carry out pressure-resistant and moisture-proof process on the capacitor.
9、对电阻器进行人工老化处理。9. Carry out artificial aging treatment on the resistor.
在上述装置的外部安装一个机箱4且内层屏蔽，在机箱的下部设有绝缘脚5。A
上述利用可变电容的方法对介质损耗测试仪进行检定的装置添补了在高压介质损耗测试仪的检定工作中的空白，给这项工作带来了很大的便利。The above-mentioned device for verifying the dielectric loss tester by using the variable capacitance method fills the blank in the verification work of the high-voltage dielectric loss tester, and brings great convenience to this work.
附图说明： Description of drawings:
图1是高压标准介损器的系统结构图Figure 1 is a system structure diagram of a high-voltage standard dielectric loss device
图2是高压标准介损器主电路图Figure 2 is the main circuit diagram of the high voltage standard dielectric loss device
具体实施方式： Detailed ways:
如图1-2所示高压标准介损器，1000pF的高压标准介损器是选用1000pF的标准电容器，电容器是采用同轴式结构，高压极、测量极和屏蔽极都围绕一个轴心安装，内充SF6(六氟化硫)气体，使得电容器具有极高的稳定性，基本不受温度和湿度的影响；电阻采用大功率高压电阻，它具有耐高压、大功率、稳定性好等特点，电阻可以设置为9个，分别是R1至R9；量程切换开关选用分布电容小、耐高压的量程转换开关，并使用覆银材料，使得开关有很小的接触电阻、复移电阻和很小的分布电容。上述结构使整套设备具有稳定的电容量和介质损耗量，它不受温度、湿度、电压高低的影响。自动介质损耗测试仪用正接线法和反接线法测量数据都是一致的。As shown in Figure 1-2, the high-voltage standard dielectric loss device, the 1000pF high-voltage standard dielectric loss device is a standard capacitor of 1000pF, the capacitor adopts a coaxial structure, and the high-voltage pole, the measuring pole and the shielding pole are all installed around an axis. Filled with SF 6 (sulfur hexafluoride) gas, the capacitor has extremely high stability and is basically not affected by temperature and humidity; the resistor adopts a high-power high-voltage resistor, which has the characteristics of high-voltage resistance, high power, and good stability. , the resistors can be set to 9, which are R1 to R9 respectively; the range switching switch adopts the range switching switch with small distributed capacitance and high voltage resistance, and uses silver-coated materials, so that the switch has very small contact resistance, complex shift resistance and small the distributed capacitance. The above-mentioned structure makes the whole set of equipment have stable capacitance and dielectric loss, and it is not affected by temperature, humidity, and voltage. The measurement data of the automatic dielectric loss tester using the positive wiring method and the reverse wiring method are consistent.
10000pF的高压标准介损器是选用10000pF的聚丙烯电容器，聚丙烯绝缘材料当介质的电容器具有温度系数较小、介质损耗角较小等特点；电阻采用大功率高压电阻，它具有耐高压、大功率、稳定性好等特点，电阻可以设置为9个，分别是R1至R9；量程切换开关选用分布电容小、耐高压的量程转换开关，并使用覆银材料，使得开关有很小的接触电阻、复移电阻和很小的分布电容。上述结构使整套设备具有稳定的电容量和介质损耗量，它不受温度、湿度、电压高低的影响。自动介质损耗测试仪用正接线法和反接线法测量数据都是一致的。The 10000pF high-voltage standard dielectric loss device is a 10000pF polypropylene capacitor. The capacitor made of polypropylene insulating material has the characteristics of small temperature coefficient and small dielectric loss angle; Power, good stability and other characteristics, the resistance can be set to 9, which are R1 to R9; the range switching switch adopts the range switching switch with small distributed capacitance and high voltage resistance, and uses silver-coated materials, so that the switch has a small contact resistance , Removal resistance and small distributed capacitance. The above-mentioned structure makes the whole set of equipment have stable capacitance and dielectric loss, and it is not affected by temperature, humidity, and voltage. The measurement data of the automatic dielectric loss tester using the positive wiring method and the reverse wiring method are consistent.
上述实施例不以任何方式限定本实用新型，凡采用等同替换或等效变换的方式所获得的技术方案，均落在本实用新型的保护范围之内。The above-mentioned embodiments do not limit the present utility model in any way, and all technical solutions obtained by means of equivalent replacement or equivalent transformation fall within the protection scope of the present utility model.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200353728U CN201181327Y (en) | 2008-04-30 | 2008-04-30 | High Voltage Standard Dissipator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200353728U CN201181327Y (en) | 2008-04-30 | 2008-04-30 | High Voltage Standard Dissipator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201181327Y true CN201181327Y (en) | 2009-01-14 |
Family
ID=40250826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200353728U Expired - Lifetime CN201181327Y (en) | 2008-04-30 | 2008-04-30 | High Voltage Standard Dissipator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201181327Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313876A (en) * | 2010-07-05 | 2012-01-11 | 河南电力试验研究院 | Calibrating device for fully automated high-voltage dielectric loss tester |
| CN102621513A (en) * | 2012-04-10 | 2012-08-01 | 辽宁省电力有限公司抚顺供电公司 | Calibration standard device for portable dielectric loss testers |
| CN107167754A (en) * | 2017-06-19 | 2017-09-15 | 国网辽宁省电力有限公司抚顺供电公司 | Portable medium angle of loss criteria check device |
| CN109581264A (en) * | 2019-01-08 | 2019-04-05 | 任守华 | A kind of capacitance and dielectric loss standard |
-
2008
- 2008-04-30 CN CNU2008200353728U patent/CN201181327Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313876A (en) * | 2010-07-05 | 2012-01-11 | 河南电力试验研究院 | Calibrating device for fully automated high-voltage dielectric loss tester |
| CN102313876B (en) * | 2010-07-05 | 2013-07-10 | 河南省电力公司电力科学研究院 | Calibrating device for fully automated high-voltage dielectric loss tester |
| CN102621513A (en) * | 2012-04-10 | 2012-08-01 | 辽宁省电力有限公司抚顺供电公司 | Calibration standard device for portable dielectric loss testers |
| CN107167754A (en) * | 2017-06-19 | 2017-09-15 | 国网辽宁省电力有限公司抚顺供电公司 | Portable medium angle of loss criteria check device |
| CN109581264A (en) * | 2019-01-08 | 2019-04-05 | 任守华 | A kind of capacitance and dielectric loss standard |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103267933B (en) | The method of shelf depreciation in measuring transformer induced voltage test device | |
| CN201993436U (en) | High-voltage oiled paper insulation characteristic testing device | |
| CN103278753B (en) | Device for transformer induction voltage test | |
| CN104360141B (en) | Stand-off ratio voltage coefficient detection method based on separable direct current voltage divider | |
| CN201181327Y (en) | High Voltage Standard Dissipator | |
| CN103630803A (en) | Cable partial discharge live correction method | |
| CN105629049A (en) | Gauss quadrature algorithm-based optical voltage transformer | |
| CN106771505A (en) | Single-phase overhead transmission line of electricity phase voltage method for self-calibrating based on series capacitance | |
| CN105223536B (en) | A kind of portable electric meter field calibration system | |
| CN203249991U (en) | Apparatus for Transformer Induced Voltage Test | |
| CN204925189U (en) | 10kV DC voltage proportion standard device | |
| CN204228774U (en) | A kind of 1000kV DC partial voltage for DC voltage addition test compares standard set-up | |
| CN105092927A (en) | Self-calibration high precision AC-DC voltage divider | |
| CN107167754A (en) | Portable medium angle of loss criteria check device | |
| CN204964744U (en) | On --spot calibration system of portable electric energy meter | |
| DE602004012735D1 (en) | ELECTRONIC MEASURING CONVERTER TO COMBINED ELECTRICAL AND VOLTAGE MEASUREMENTS. | |
| CN217846600U (en) | A new calibration device for high voltage dielectric loss tester | |
| CN111289583A (en) | Device and method for testing broadband dielectric properties of gel-like materials | |
| CN201583598U (en) | High-voltage stator coil insulation dielectric loss test box | |
| CN108226840A (en) | A kind of faint charge calibration system | |
| CN111239558B (en) | Online measurement method for equivalent discharge capacity of line fault arc | |
| CN104515910A (en) | Sensor for testing harmonic electric field around UHVDC (ultrahigh voltage direct current) line insulators | |
| CN207992422U (en) | A kind of high-voltage high resistance calibrating instrument intelligence calibrating installation | |
| CN204116446U (en) | A kind of voltage for high voltage converter and frequency measuring equipment | |
| CN202119744U (en) | Simple testing device for transformer oil medium wastage rate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU ELECTRIC POWER CO. STATE ELECTRIC NET CROP Effective date: 20121024 Owner name: ELECTRIC POWER RESEARCH INSTITUTE, JIANGSU ELECTRI Free format text: FORMER OWNER: JIANGOU PROVINCIAL POWER TEST INST CO., LTD. Effective date: 20121024 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121024 Address after: 210036 Fenghuang West Street, Jiangsu, Nanjing, China, No. 243 Patentee after: Electric Power Research Institute of Jiangsu Electric Power Company Patentee after: Jiangsu Electric Power Company Patentee after: State Grid Corporation of China Address before: 210036 Fenghuang West Street, Jiangsu, Nanjing, China, No. 243 Patentee before: Jiangou Provincial Power Test Inst Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090114 |