CN201994654U - 110kV resistance-capacitance absorber - Google Patents
110kV resistance-capacitance absorber Download PDFInfo
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- CN201994654U CN201994654U CN2011201465328U CN201120146532U CN201994654U CN 201994654 U CN201994654 U CN 201994654U CN 2011201465328 U CN2011201465328 U CN 2011201465328U CN 201120146532 U CN201120146532 U CN 201120146532U CN 201994654 U CN201994654 U CN 201994654U
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Abstract
为了限制在110kV电力系统中产生的各类操作过电压，本实用新型公开了一种110kV系统用阻容吸收器，其技术方案是由若干个干式电容器串联的110kV干式高压电容器与大功率陶瓷无感电阻器串联而成，110kV干式高压电容器设置在内部灌封有环氧树脂的壳体内，大功率陶瓷无感电阻器安装于电阻罩内并连接110kV被保护设备，110kV干式高压电容器直接接地。本实用新型可有效限制110kV系统操作过电压，使操作过电压的波形变缓、陡度和幅值降低，具有性能稳定、结构简单、体积小等优点，便于安装与推广。
In order to limit various operating overvoltages generated in the 110kV power system, the utility model discloses a resistance-capacitance absorber for a 110kV system. Ceramic non-inductive resistors are connected in series, 110kV dry-type high-voltage capacitors are set in a shell filled with epoxy resin, high-power ceramic non-inductive resistors are installed in the resistance cover and connected to 110kV protected equipment, 110kV dry-type high-voltage The capacitor is connected directly to ground. The utility model can effectively limit the operating overvoltage of the 110kV system, make the waveform of the operating overvoltage slow, and reduce the steepness and amplitude, and has the advantages of stable performance, simple structure, small volume, etc., and is convenient for installation and popularization.
Description
技术领域technical field
本实用新型涉及一种110kV高压电力系统用阻容吸收器，具体涉及一种110kV电力系统中能够有效地抑制截流过电压、重燃过电压、三相同时开断过电压等操作过电压的阻容吸收器，属于输配电领域。The utility model relates to a resistance-capacitance absorber for a 110kV high-voltage power system, in particular to a resistor capable of effectively suppressing operating overvoltages such as cut-off overvoltage, re-ignition overvoltage, and three-phase simultaneous disconnection overvoltage in a 110kV power system. A capacitive absorber belongs to the field of power transmission and distribution.
背景技术Background technique
我国110kV电力系统中，因真空开关设备具有体积小、重量轻、高性能、高可靠性、维护检查方便、适合频繁操作等优点，得到了大力的推广与应用。但随之而带来的是各种操作过电压横行，使许多高价值的电力设备不断烧毁、损坏，严重危害了电网的安全运行。目前在110kV电力系统中，主要采用无间隙MOA避雷器加以限制，众所周知，氧化锌避雷器只限幅不限频，属于压敏型元件，无法对110kV电力设备绝缘进行有效保护，是电力设备损坏的主要原因。In my country's 110kV power system, vacuum switchgear has been vigorously promoted and applied due to its advantages of small size, light weight, high performance, high reliability, convenient maintenance and inspection, and suitable for frequent operation. However, what followed was that various operating overvoltages were rampant, causing many high-value power equipment to be continuously burned and damaged, seriously endangering the safe operation of the power grid. At present, in the 110kV power system, gapless MOA arresters are mainly used to limit them. As we all know, zinc oxide arresters only limit the amplitude and not the frequency. They are pressure-sensitive components and cannot effectively protect the insulation of 110kV power equipment. reason.
目前，在110kV电力系统中，由于技术、工艺等原因，尚没有一种保护电器能够做到既能限制过电压幅值，又能限制过电压频率的阻容吸收器。At present, in the 110kV power system, due to technical and technological reasons, there is no RC absorber that can limit both the amplitude of the overvoltage and the frequency of the overvoltage.
实用新型内容Utility model content
本实用新型的目的是为了有效限制在110kV电力系统中产生的各类操作过电压，而公开了一种110kV阻容吸收器，该吸收器可有效吸收110kV电网中产生的操作过电压。The purpose of the utility model is to effectively limit various operating overvoltages generated in a 110kV power system, and discloses a 110kV resistance-capacitance absorber, which can effectively absorb operating overvoltages generated in a 110kV power grid.
本实用新型的技术方案如下所述：The technical scheme of the utility model is as follows:
110kV系统阻容吸收器，包括110kV干式高压电容器5与大功率陶瓷无感电阻器1，110kV干式高压电容器5是由若干个干式电容器串联而成，110kV干式高压电容器5与大功率陶瓷无感电阻器1互相串联在一起。110kV system RC absorber, including 110kV dry-type high-voltage capacitor 5 and high-power ceramic non-inductive resistor 1, 110kV dry-type high-voltage capacitor 5 is composed of several dry-type capacitors in series, 110kV dry-type high-voltage capacitor 5 and high-power Ceramic non-inductive resistors 1 are connected in series with each other.
其特征还在于：所述110kV干式高压电容器5设置在内部灌封有环氧树脂6的壳体内，环氧管4表面用硅橡胶一次模压成型为硅橡胶套3。It is also characterized in that: the 110kV dry-type high-voltage capacitor 5 is set in a casing filled with epoxy resin 6 inside, and the surface of the epoxy tube 4 is molded into a
其特征还在于：大功率陶瓷无感电阻器1安装于电阻罩2内。It is also characterized in that: the high-power ceramic non-inductive resistor 1 is installed in the
其特征还在于：所述的大功率陶瓷无感电阻器1连接110kV被保护设备，所述110kV干式高压电容器5直接接地。It is also characterized in that: the high-power ceramic non-inductive resistor 1 is connected to the 110kV protected equipment, and the 110kV dry-type high-voltage capacitor 5 is directly grounded.
本实用新型在采用了上述技术方案后，其借助于大功率陶瓷无感电阻器1和110kV干式高压电容器5的共同作用，其可有效限制110kV系统操作过电压的瞬间振荡和高频电流，使操作过电压的波形变缓、陡度和幅值降低，具有性能稳定、结构简单、体积小等优点，便于安装与推广。After the utility model adopts the above-mentioned technical scheme, it can effectively limit the instantaneous oscillation and high-frequency current of the operating overvoltage of the 110kV system by means of the joint action of the high-power ceramic non-inductive resistor 1 and the 110kV dry-type high-voltage capacitor 5, The waveform of the operating overvoltage is slowed down, the steepness and the amplitude are reduced, and it has the advantages of stable performance, simple structure, small volume, etc., and is convenient for installation and promotion.
附图说明Description of drawings
附图1是本实用新型110kV阻容吸收器的结构示意图。Accompanying drawing 1 is the structural representation of the utility model 110kV RC absorber.
附图2是本实用新型110kV阻容吸收器的电路原理图。
附图标记说明如下：大功率陶瓷无感电阻器1、电阻罩2、硅橡胶套3、环氧管4、110kV干式高压电容器5、环氧树脂6。Reference numerals are explained as follows: high-power ceramic non-inductive resistor 1 ,
具体实施方式Detailed ways
结合附图对本实用新型进行描述，使上述特征和优点变得更加清楚和容易理解，下面结合附图以及具体实施例对本实用新型进行详细的描述。The utility model is described in conjunction with the accompanying drawings to make the above features and advantages clearer and easier to understand. The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
如图1所示，本实用新型110kV阻容吸收器，包括一个大功率陶瓷无感电阻器1和一个110kV干式高压电容器5串联而成。As shown in Figure 1, the utility model 110kV RC absorber includes a high-power ceramic non-inductive resistor 1 and a 110kV dry-type high-voltage capacitor 5 connected in series.
所述的110kV干式高压电容器是由14颗干式电容器串联而成。The 110kV dry-type high-voltage capacitor is composed of 14 dry-type capacitors connected in series.
所述的110kV干式高压电容器选用优质、高性能绝缘材料聚丙烯金属薄膜为固体介质。The 110kV dry-type high-voltage capacitor uses high-quality, high-performance insulating material polypropylene metal film as the solid medium.
所述的110kV干式高压电容器5设置在内部灌封有环氧树脂6的环氧管4内部，并且该110kV干式高压电容器5封装在环氧树脂之中，所述环氧管4经硅橡胶套3一次模压成型。The 110kV dry-type high-voltage capacitor 5 is set inside the epoxy tube 4 filled with epoxy resin 6, and the 110kV dry-type high-voltage capacitor 5 is encapsulated in the epoxy resin, and the epoxy tube 4 is sealed with silicon The
如图2所示，所述大功率陶瓷无感电阻器1与110kV干式高压电容器6互相串联在一起，其中，大功率陶瓷无感电阻器1连接高压被保护设备，110kV干式高压电容器6直接接地，二者互相组合在一起。As shown in Figure 2, the high-power ceramic non-inductive resistor 1 and the 110kV dry-type high-voltage capacitor 6 are connected in series, wherein the high-power ceramic non-inductive resistor 1 is connected to the high-voltage protected equipment, and the 110kV dry-type high-voltage capacitor 6 Directly grounded, the two are combined with each other.
本实用新型在采取了上述技术方案后，可以有效限制110kV操作过电压，使操作过电压的波形变缓、陡度和幅值降低，再加上大功率陶瓷无感电阻器的阻尼作用，使高频振荡迅速衰减，环氧树脂具有高绝缘、阻燃等优点，大功率陶瓷无感电阻器具有能量耐受力大，无电感，耐高压，体积小，性能稳定等优点。该110kV干式高压电容器的设计完全达到了GB311.1标准的要求。After adopting the above-mentioned technical scheme, the utility model can effectively limit the operating overvoltage of 110kV, make the waveform of the operating overvoltage slow down, reduce the steepness and amplitude, and add the damping effect of the high-power ceramic non-inductive resistor, so that High-frequency oscillation attenuates quickly, epoxy resin has the advantages of high insulation and flame retardancy, and high-power ceramic non-inductive resistors have the advantages of large energy tolerance, no inductance, high voltage resistance, small size, and stable performance. The design of the 110kV dry-type high-voltage capacitor fully meets the requirements of the GB311.1 standard.
需要注意的是，上面的具体描述只是为了解释本实用新型，并非用于限制本实用新型，具体实施例是示例性的，本领域的技术人员在上述实施例的基础上进行的任何改进和变形，都会落在本实用新型的保护范围内。本实用新型的保护范围由权利要求及其等同物限定。It should be noted that the above specific description is only for explaining the utility model, and is not intended to limit the utility model, and the specific embodiments are exemplary, and any improvements and modifications made by those skilled in the art on the basis of the above-mentioned embodiments , all will fall within the protection scope of the present utility model. The protection scope of the present utility model is defined by the claims and their equivalents.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011201465328U CN201994654U (en) | 2011-05-11 | 2011-05-11 | 110kV resistance-capacitance absorber |
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| CN2011201465328U CN201994654U (en) | 2011-05-11 | 2011-05-11 | 110kV resistance-capacitance absorber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110010351A (en) * | 2019-04-26 | 2019-07-12 | 无锡市联达电器有限公司 | A kind of extra-high voltage equalizing capacitor capacitance-resistance device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110010351A (en) * | 2019-04-26 | 2019-07-12 | 无锡市联达电器有限公司 | A kind of extra-high voltage equalizing capacitor capacitance-resistance device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20150511 |
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| EXPY | Termination of patent right or utility model |