电容式电压互感器
发布时间：2020-07-24 10:19:10来源：锡容电力电器点击：3135
电容式电压互感器的简介
DIANRONGSHIDIANYAHUGANQISHIYOUCHUANLIANDIANRONGQICHOUQUDIANYA,ZAIJINGBIANYAQIBIANYAZUOWEIBIAOJI、JIDIANBAOHUDENGDEDIANYAYUANDEDIANYAHUGANQI，DIANRONGSHIDIANYAHUGANQIHAIKEYIJIANGZAIBOPINLVOUHEDAOSHUDIANXIANYONGYUZHANGTUTONGXIN、YUANFANGCELIANG、XUANZEXINGDEXIANLUGAOPINBAOHU、YAOKONG、DIANCHUANDAZIDENG。YINCIHECHANGGUIDEDIANCISHIDIANYAHUGANQIXIANGBI，DIANRONGSHIDIANYAHUGANQIQICHUKEFANGZHIYINDIANYAHUGANQITIEXINBAOHEYINQITIECIXIEZHENWAI，ZAIJINGJIHEANQUANSHANGHAIYOUHENDUOYOUYUEZHICHU。
DIANRONGSHIDIANYAHUGANQIZHUYAOYOUDIANRONGFENYAQIHEZHONGYABIANYAQIZUCHENG。DIANRONGFENYAQIYOUCITAOHEZHUANGZAIQIZHONGDERUOGANCHUANLIANDIANRONGQIZUCHENG，CITAONEICHONGMANBAOCHI0.1MPaZHENGYADEJUEYUANYOU，BINGYONGGANGZHIBOWENGUANPINGHENGBUTONGHUANJINGYIBAOCHIYOUYA，DIANRONGFENYAKEYONGZUOOUHEDIANRONGQILIANJIEZAIBOZHUANGZHI。ZHONGYABIANYAQIYOUZHUANGZAIMIFENGYOUXIANGNEIDEBIANYAQI，BUCHANGDIANKANGQIHEZUNIZHUANGZHIZUCHENG，YOUXIANGDINGBUDEKONGJIANCHONGDAN。YICIRAOZUFENWEIZHURAOZUHEWEIDIAORAOZU，YICICEHEYICIRAOZUJIANCHUANLIANYIGEDISUNHAODIANKANGQI。YOUYUDIANRONGSHIDIANYAHUGANQIDEFEIXIANXINGZUKANGHEGUYOUDEDIANRONGYOUSHIHUIZAIDIANRONGSHIDIANYAHUGANQINEIYINQITIECIXIEZHEN，YINERYONGZUNIZHUANGZHIYIZHIXIEZHEN，ZUNIZHUANGZHIYOUDIANZUHEDIANKANGQIZUCHENG，KUAJIEZAIERCIRAOZUSHANG，ZHENGCHANGQINGKUANGXIAZUNIZHUANGZHIYOUHENGAODEZUKANG，DANGTIECIXIEZHENYINQIGUODIANYA，ZAIZHONGYABIANYAQISHOUDAOYINGXIANGQIAN，DIANKANGQIYIJINGBAOHELEZHISHENGDIANZUFUZAI，SHIZHENDANGNENGLIANGHENKUAIBEIJIANGDI。
电容式电压互感器的主要参数及性能
1.2.1EDINGDIANYAJIJINGDUDENGJI
|
EDINGYICIDIANYA（KV） |
35/ |
66/ |
110/ |
220/ |
330/ |
500/ |
|
ZHUERCIRAOZUEDINGDIANYA（V） |
100/ |
100/ |
100/ |
100/ |
100/ |
100/ |
|
SHENGYURAOZUEDINGDIANYA（V） |
100/3 |
100/3 |
100 |
100 |
100 |
100 |
1.2.2YUNXINGPINLVJIXIANGYINGJINGDUDENGJI
|
准确级次 |
0.2 |
0.5 |
3.0 |
3P |
6P |
|
|
工作条件 |
频率（%） |
99~101 |
96~102 |
|||
|
电压（%） |
80~120 |
5~f |
||||
|
负载（%） |
25~100 |
|||||
|
负载功率因数 |
0.8（滞后） |
|||||
|
变比误差（%） |
±0.2 |
±0.5 |
±3.0 |
±3.0 |
±6.0 |
|
|
相角差（分） |
±10 |
±20 |
|
±120 |
±120 |
|
注：表中f的值为：(1)中性点有效接地系统：f=150
(2) 中性点非有效接地系统：f=190
1.2.3ZHUYAODIANQIXINGNENG
1.2.3.1产品能在1.2UN下长期运行，能在1.5UN下运行30S（中性点有效接地系统；或在1.9UNXIAYUNXING8XIAOSHI（ZHONGXINGDIANFEIYOUXIAOJIEDIXITONG）。
1.2.3.2DIANRONGFENYAQIDEDIANRONGYUNXUPIANCHA-5%~+5%，FENYABIDEYUNXUPIANCHA±5%。
1.2.3.3DIANRONGFENYAQIDEJIEZHISUNSHIJIAOZHENGQIEZHItgδ≤0.10%，JUBUFANGDIANLIANGBUCHAOGUO5PC，CVTZHENGTIJUFANGBUCHAOGUO10PC。
1.2.3.4CVTDEZHONGJIANBIANYAQIRAOZULIANJIEWEI：I/I/I/I-12-12-12(3GEERCIRAOZU)
I/I/I-12-12(2GEERCIRAOZU)
1.2.3.5CVT对地杂散电容小于（300+0.05CN）pF,杂电导不超过50 US；
1.2.3.6TIECIXIEZHEN
由于电容式电压互感器是由非线性电感和电容器组成的，在某些条件下，如操作冲击过电压、雷电冲击过电压或二次回路存在间歇性短路现象时，它自身可能产生铁磁谐振。为了抑制电磁谐振，在CVT的二次侧接有阻尼器，保护型CVT采用电阻型阻尼器，其他型号的CVT采用速饱和阻尼器，速饱和阻尼器由速饱和电抗器和电阻串联而成。铁磁谐振中产生的各种过电压在使中间变压器饱和前，首先使阻尼器饱和，从而将谐振过电压的能量消耗在阻尼器是，达到消谐目的。本公司的电容式电压互感器在0~1.5UN下或0~1.95UNXIANENGWANQUANMANZUGB/T4703JIIEC186SUOGUIDINGDETIECIXIEZHENDEYAOQIU。
1.2.3.7
SHUNJIANXIANGYINGDINGYIWEICVTDEYICICEDUANLUHOU，ZAIYIGEZHOUBOHOU，QIERCIDIANYADECANMAOFENLIANG。BENGONGSISHENGCHANDECVTQISHUNJIANBIANXIANGYINGZHIBIAOWEI：YICICEDUANLUHOUYIGEZHOUBONEIERCICESHENGYUDIANYAKEJIANGZHIDUANLUQIANDIANYAFENGZHIDE5%YIXIA。
该产品用于交流电力系统中，接到线与地之间，为测量，保护和控制装置提供单相低压电，产品符合GB4703标准。
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