低压双绕组型电流互感器品种选型方法.docx

1、低压双绕组型电流互感器品种选型方法低压双绕组电流互感器品种及选型方法1、概述双绕组电流互感器作为低压配电系统监控电流的采集元件具有两个绕组，其一(1S1、1S2)用于电流表指示，额定二次电流为AC5A或AC1A，其二(2S1、2S2)用于远传遥测，可与我公司生产的ARTU-M32配套使用，额定二次电流为AC0-20mA；亦可用于电动机保护回路中使用，但由于电流保护回路过载电流为5-8倍，所以确保双绕组电流互感器的线性至8倍，且电流在8倍时，能保证双绕组电流互感器的误差在0.2-0.5%。产品外壳结构采用翻盖结构，外壳采用阻燃、耐温140的PC材料注塑成形，铁芯采用冷轧硅钢带卷制而成，二次导线采

2、用高强度电磁漆包线，产品结构新颖，造型美观，安装方便。产品具有体积小、质量轻、准确度高、容量大等特点。2、国内主要品牌及型号国内生产低压双绕组电流互感器厂家、型号品牌繁多，主要常见的产品有：ABB公司LNS2、LNS3、LNS4、LNS5、LNS6、LNS7、LNS8、LNS9；上海安科瑞AKH-0.66S系列双绕组电流互感器，即AKH-0.66S-30I、AKH-0.66S-40I、AKH-0.66S-50II、AKH-0.66S-60II、AKH-0.66S-80II、AKH-0.66S-100II、AKH-0.66S-120II、AKH-0.66S-200II。3、主要技术指标(以安科瑞

3、AKH-0.66S为例) 双绕组CT一次电流5-6300A，二次电流5A、20mA，1A、20mA； 双绕组传感器一次电流5-6300A，二次电流AC5A、DC4-20mA，AC1A、DC4-20mA； 额定工作电压AC0.66kV（等效AC0.69kV，GB/T156-2007） 额定频率50-60Hz 环境温度-3070，最高耐温120 海拔高度3000m 工频耐压3000V/1min 50Hz 用于没有雨雪直接侵袭，无严重污染及剧烈震动的场所4、选型说明 型号说明 AKH - 0.66 - S - -安装方式额定电压(kV)企业型号 规格尺寸 尺寸规格外形尺寸(mm)穿孔尺寸(mm)安装

4、尺寸(mm)WHDaeMNS-30I85139443111234565S-40I85139444211314565S-5096146455231/5357.5S-60102143456534/4157.5S-80120148458232/5957.5S-1001501754510352/8057.5S-1201681805012552/8070.5S-2002531806020656/53383 规格参数对照表规格额定电流比(A)准确级及相应额定负荷(VA)穿心匝数(匝)母排规格(mm)/根数电缆最大外径(mm)安装方式0.2/0.2级0.5/0.2级1/0.2级S-30I5/5/0.022.

5、5*/0.022.5/0.0215/22F10/5/0.022.5*/0.022.5/0.02815/5/0.022.5*/0.022.5/0.02520/5/0.022.5*/0.022.5/0.02425/5/0.022.5*/0.022.5/0.02330/5/0.022.5*/0.022.5/0.02340/5/0.022.5*/0.022.5/0.02250/5/0.022.5*/0.022.5/0.02260/5/0. 022.5*/0.022.5/0.02275/5/0.022.5*/0.022.5/0.0213010/1B,F80/5/0.022.5*/0.022.5/0.02

6、1100/5/0.022.5*/0.022.5/0.021150/5/0.022.5*/0.021200/5/0.022.5*/0.025.0/0.021S-40I200/5/0.025.0/0.0214010/130C,F250/5/0.022.5*/0.025.0/0.021300/5/0.022.5*/0.025.0/0.021400/5/0.022.5*/0.025.0/0.021500/5/0.025.0*/0.0210/0.021600/5/0.025.0*/0.0210/0.021S-50600/5/0.025.0*/0.0210/0.0215010/1-2/B750/5/0.0

7、25.0*/0.0210/0.021800/5/0. 025.0*/0.0210/0.0211000/5/0.0215/0.0211200/5/0.0220/0.0211250/5/0.0220/0.021S-60300/5/0.022.5*/0.025.0/0.0216010/1-2/C400/5/0.022.5*/0.025.0/0.021500/5/0.025.0*/0.0210/0.021600/5/0.025.0*/0.0210/0.021750/5/0.025.0*/0.0210/0.021800/5/0.025.0*/0.0210/0.0211000/5/0.0215/0.021

8、1200/5/0.0220/0.0211250/5/0.0220/0.0211500/5/0.0220/0.0212000/5/0.0220/0.021S-80600/5/0.025.0*/0.0210/0.0218010/1-2/C750/5/0.025.0*/0.0210/0.021800/5/0.025.0*/0.0210/0.0211000/5/0.0215/0.0211200/5/0.0220/0.0211250/5/0.0220/0.0211500/5/0.0220/0.0212000/5/0.0220/0.0212500/5/0.0230/0.0213000/5/0.0230/0

9、.021S-1001000/5/0.0215/0.02110010/1-3/D1200/5/0.0220/0.0211250/5/0.0220/0.0211500/5/0.0220/0.0212000/5/0.0220/0.0212500/5/0.0230/0.0213000/5/0.0230/0.0214000/5/0.0240/0.021S-1202000/5/0.0220/0.02112010/1-3/D2500/5/0.0230/0.0213000/5/0.0230/0.0214000/5/0.0240/0.0215000/5/0 .0240/0.021S-2002000/5/0.02

10、20/0.02110010/2-6/D2500/5/0.0230/0.0213000/5/0.0230/0.0214000/5/0.0240/0.0215000/5/0.0240/0.0216300/5/0.0240/0.021规格额定电流比(A)准确级及相应额定负荷()穿心匝数(匝)母排规格(mm)/根数电缆最大外径(mm)安装方式0.2/0.2级0.5/0.2级1/0.2级S-30I5/1/0.022.5*/0.022.5/0.0215/22F10/1/0.022.5*/0.022.5/0.02815/1/0.022.5*/0.022.5/0.02520/1/0.022.5*/0.022.

11、5/0.02425/1/0.022.5*/0.022.5/0.02330/1/0.022.5*/0.022.5/0.02340/1/0.022.5*/0.022.5/0.02250/1 /0.022.5*/0.022.5/0.02260/1/0.022.5*/0.022.5/0.02275/1/0.022.5*/0.022.5/0.0213010/1B,F80/1/0.022.5*/0.022.5/0.021100/1/0.022.5*/0.022.5/0.021150/1/0.022.5*/0.021200/1/0.022.5*/0.025.0/0.021S-40I200/1/0.025.0

12、/0.0214010/130C,F250/1/0.022.5*/0.025.0/0.021300/1/0.022.5*/0.025.0/0.021400/1/0.022.5*/0.025.0/0.021500/1/0.025.0*/0.0210/0.021600/1/0.025.0*/0.0210/0.021S-50600/1/0.025.0*/0.0210/0.0215010/1-2/B750/1/0.025.0*/0.0210/0.021800/1/0.025.0*/0.0210/0.0211000/1/0.0215/0.0211200/1/0.0220/0.0211250/1/0.022

13、0/0.021S-60300/1/0.022.5*/0.025.0/0.0216010/1-2/C400/1/0.022.5*/0.025.0/0.021500/1/0.025.0*/0.0210/0.021600/1/0.025.0*/0.0210/0.021750/1/0.025.0*/0.0210/0.021800/1/0.025.0*/0.0210/0.0211000/1/0.0215/0.0211200/1/0.0220/0.0211250/1/0.0220/0.0211500/1/0.0220/0.0212000/1/0.0220/0.021S-80600/1/0.025.0*/0

14、.0210/0.0218010/1-2/C750/1/0.025.0*/0.0210/0.021800/1/0.025.0*/0.0210/0.0211000/1/0.0215/0.0211200/1/0.0220/0.0211250/1/0.0220/0.0211500/1/0.0220/0.0212000/1/0.0220/0.0212500/1/0.0230/0.0213000/1/0.0230/0.021S-1001000/1/0.0215/0.02110010/1-3/D1200/1/0.0220/0.0211250/1/0.0220/0.0211500/1/0.0220/0.021

15、2000/1/0.0220/0.0212500/1/0.0230/0.0213000/1/0.0230/0.0214000/1/0.0240/0.021S-1202000/1/0.0220/0.02112010/1-3/D2500/1/0.0230/0.0213000/1/0.0230/0.0214000/1/0.0240/0.0215000/1/0.0240/0.021S-2002000/1/0.0220/0.02110010/2-6/D2500/1/0.0230/0.0213000/1/0.0230/0.0214000/1/0.0240/0.0215000/1/0.0240/0.02163

16、00/1/0.0240/0.021注：准确级及其相应额定负荷栏中有“*”标注的为特殊规格，订货时请说明。4.1 AKH-0.66SM自控仪表用电流传感器（双绕组电流传感器） 产品特点AKH-0.66SM型双绕组电流传感器可有两路输出，其一（1S1，1S2）输出AC0-5A或0-1A，与测量、计量装置配套使用；其二（2S1+，2S2-）输出DC4-20mA，与自控仪表（如PLC）配套使用，其中辅助电源DC24V由PLC供电。 型号说明 AKH - 0.66 - SM- -安装方式额定电压(kV)企业型号 规格尺寸 尺寸规格外形尺寸(mm)穿孔尺寸(mm)安装尺寸(mm)WHDaeMNSM-50I

17、96146455231404060SM-6098145456231.5/4257.5SM-80118152458232/6057.5SM-1001401554910232/7557.5SM-1201671874812252/5457.5SM-2002462085620661/18857.5 规格参数对照表规格额定电流比(A)准确级及相应额定负荷(VA/)穿心匝数(匝)母排规格(mm)/根数电缆最大外径(mm)安装方式0.2/0.5级0.5/0.5级1.0/1.0级SM-50I5/5/4-20mA2.5/50030/40F10/5/4-20mA2.5/5001515/5/4-20mA2.5/50

18、01020/5/4-20mA2.5/500825/5/4-20mA2.5/500630/5/4-20mA2.5/500540/5/4-20mA2.5/500450/5/4-20mA2.5/500360/5/4-20mA2.5/500375/5/4-20mA2.5/500280/5/4-20mA2.5/5002100/5/4-20mA2.5/5002150/5/4-20mA2.5/50015010/1-2B，F200/5/4-20mA2.5/5001250/5/4-20mA2.5/5001300/5/4-20mA5.0/5001400/5/4-20mA5.0/500500/5/4-20mA10/

19、500600/5/4-20mA10/500750/5/4-20mA10/500800/5/4-20mA10/5001000/5/4-20mA10/5001200/5/4-20mA15/5001250/5/4-20mA20/500SM-60300/5/4-20mA5.0/50016010/1-2/C400/5/4-20mA5.0/5001500/5/4-20mA10/5001600/5/4-20mA10/5001750/5/4-20mA10/5001800/5/4-20mA10/5001000/5/4-20mA10/5001200/5/4-20mA15/5001250/5/4-20mA20/50

20、01500/5/4-20mA20/5002000/5/4-20mA20/500SM-80600/5/4-20mA10/50018010/1-2/C750/5/4-20mA10/5001800/5/4-20mA10/50011000/5/4-20mA10/50011200/5/4-20mA15/50011250/5/4-20mA20/5001500/5/4-20mA20/5002000/5/4-20mA20/5002500/5/4-20mA30/5003000/5/4-20mA30/500SM-1001000/5/4-20mA10/500110010/1-2/D1200/5/4-20mA15/5

21、0011250/5/4-20mA20/50011500/5/4-20mA20/50012000/5/4-20mA20/50012500/5/4-20mA30/50013000/5/4-20mA30/50014000/5/4-20mA30/5001SM-1202000/5/4-20mA20/500112010/1-3/D2500/5/4-20mA30/50013000/5/4-20mA30/50014000/5/4-20mA30/50015000/5/4-20mA30/5001SM-2002000/5/4-20mA20/500120010/1-3/D2500/5/4-20mA30/5001300

22、0/5/4-20mA30/50014000/5/4-20mA30/50015000/5/4-20mA30/50016300/5/4-20mA30/5001规格额定电流比(A)准确级及相应额定负荷(/)穿心匝数(匝)母排规格(mm)/根数电缆最大外径(mm)安装方式0.2/0.5级0.5/0.5级1.0/1.0级SM-50I5/1/4-20mA2.5/50030/40F10/1/4-20mA2.5/5001515/1/4-20mA2.5/5001020/1/4-20mA2.5/500825/1/4-20mA2.5/500630/1/4-20mA2.5/500540/1/4-20mA2.5/500450/1/4-20mA2.5/500360/1/4-20mA2.5/500375/1/4-20mA2.5/500280/1/4-20mA2.5/5002100/1/4-20mA2.5/5002150/1/4-20mA2.5/50015010/1-2B，F200/1/4-20mA2.5/5001250/1/4-20mA2.5/5001300/1/4-20mA5.0/5001400/1/4-20mA5.0/500500/1/4-20mA10/500600/1/4-20mA10/500750/1/4-20mA10/500800/1/4-20mA10/500