阻容吸收原理（Resistance capacitance absorption principle）.docVIP

下载本文档

6
0
约1.12万字
约 8页
2017-08-16 发布于河南
举报
版权申诉

阻容吸收原理（Resistance capacitance absorption principle）.doc

1、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。。
2、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
3、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
4、该文档为VIP文档，如果想要下载，成为VIP会员后，下载免费。
5、成为VIP后，下载本文档将扣除1次下载权益。下载后，不支持退款、换文档。如有疑问请联系我们。
6、成为VIP后，您将拥有八大权益，权益包括：VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
7、VIP文档为合作方或网友上传，每下载1次，网站将根据用户上传文档的质量评分、类型等，对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档

阻容吸收原理（Resistance capacitance absorption principle）

阻容吸收原理（Resistance capacitance absorption principle） In order to prevent the system transient overvoltage impact (such as circuit breaker, contactor disconnect the overvoltage) of important electrical equipment damage, common practice is to install the Zinc Oxide arrester near the circuit breaker or contactor position (MOA) or RC absorber for impact protection. Comparison of two kinds of product performance advantages, the advantages of Zinc Oxide products mainly in the energy absorption ability is strong, can be used for lightning protection etc. the advantages of large current impact; RC absorber mainly lies in the initial low working voltage, which can effectively absorb the small current impact on equipment. Because the traditional lightning arrester or RC absorber is unipolar, one end is connected with the bus bar is connected with the ground, can effectively absorb relatively overvoltage protective effect but not to phase overvoltage. Therefore, in recent years, the three-phase composite overvoltage absorber has been popularized, and the above two kinds of products have been made through neutral grounding to protect the interphase. (see attached drawings) Show to promote the practice of 10 years of three-phase combined overvoltage absorber, combined with Zinc Oxide products overall accident resistance nonlinear element based rate is low, the accident is mainly individual batches of individual manufacturers on the production process errors. Products that strictly comply with relevant standards can be used safely for many years. On the contrary, the combined capacitive resistance absorber based on membrane capacitor element has higher accident rate, and the damage accident of capacitor caused by unknown reason often happens. Since 2002, the combined resistance capacitance absorber main manufacturers in their products on the capacitor series gap capacitors or other components isolated from the normal system, in order to prevent the continued burning accident of ca