低压双绕组型电流互感器品种及选型方法

1、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,二次导线采用高强度电磁漆包线,产品结构新颖,造型

2、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AKH-0.66S为例双绕组CT一次电

3、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/1min50Hz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 额定电流比规格如30I 、40I 等双绕组型规格尺寸 尺寸规格外形尺寸(mm穿孔尺寸(mm安装尺寸(mmW H D ae M N S-30I 85139443111234565S-40

4、I 85139444211314565S-5096146455231/5357.5S-60102143456534/4157.5S-80120148458232/5957.5S-1001501754510352/8057.5S-1201681805012552/8070.5S-2002531806020656/53×383企业型号额定电压(kV安装方式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-30I5/5/0.02 2.5*/0.02 2.5/0.0215/22F

5、 10/5/0.02 2.5*/0.02 2.5/0.02815/5/0.02 2.5*/0.02 2.5/0.02520/5/0.02 2.5*/0.02 2.5/0.02425/5/0.02 2.5*/0.02 2.5/0.02330/5/0.02 2.5*/0.02 2.5/0.02340/5/0.02 2.5*/0.02 2.5/0.02250/5/0.02 2.5*/0.02 2.5/0.02260/5/0.02 2.5*/0.02 2.5/0.02275/5/0.02 2.5*/0.02 2.5/0.02130×10/1B,F 80/5/0.02 2.5*/0.02 2.

6、5/0.021100/5/0.02 2.5*/0.02 2.5/0.021150/5/0.02 2.5*/0.021200/5/0.02 2.5*/0.02 5.0/0.021S-40I 200/5/0.02 5.0/0.02140×10/130C,F 250/5/0.02 2.5*/0.02 5.0/0.021300/5/0.02 2.5*/0.02 5.0/0.021400/5/0.02 2.5*/0.02 5.0/0.021500/5/0.02 5.0*/0.0210/0.021600/5/0.02 5.0*/0.0210/0.021S-50600/5/0.02 5.0*/0.

7、0210/0.02150×10/1-2/B 750/5/0.02 5.0*/0.0210/0.021800/5/0.02 5.0*/0.0210/0.0211000/5/0.0215/0.0211200/5/0.0220/0.0211250/5/0.0220/0.021S-60300/5/0.02 2.5*/0.02 5.0/0.02160×10/1-2/C 400/5/0.02 2.5*/0.02 5.0/0.021500/5/0.02 5.0*/0.0210/0.021600/5/0.02 5.0*/0.0210/0.021750/5/0.02 5.0*/0.0210/

8、0.021800/5/0.02 5.0*/0.0210/0.0211000/5/0.0215/0.0211200/5/0.0220/0.0211250/5/0.0220/0.0211500/5/0.0220/0.0212000/5/0.0220/0.021S-8080×10/1-2/C 750/5/0.02 5.0*/0.0210/0.021800/5/0.02 5.0*/0.0210/0.0211000/5/0.0215/0.0211200/5/0.0220/0.0211250/5/0.0220/0.0211500/5/0.0220/0.0212000/5/0.0220/0.021

9、2500/5/0.0230/0.0213000/5/0.0230/0.021S-1001000/5/0.0215/0.021100×10/1-3/D 1200/5/0.0220/0.0211250/5/0.0220/0.0211500/5/0.0220/0.0212000/5/0.0220/0.0212500/5/0.0230/0.0213000/5/0.0230/0.0214000/5/0.0240/0.021S-1202000/5/0.0220/0.021120×10/1-3/D 2500/5/0.0230/0.0213000/5/0.0230/0.0214000/5/

10、0.0240/0.0215000/5/0.0240/0.021S-2002000/5/0.0220/0.021100×10/2-6/D 2500/5/0.0230/0.0213000/5/0.0230/0.0214000/5/0.0240/0.0215000/5/0.0240/0.0216300/5/0.0240/0.021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-30I5/1/0.02 2.5*/0.02 2.5/0.0215/22F 10/1/0.02 2.5*/0.02 2.

11、5/0.02815/1/0.02 2.5*/0.02 2.5/0.02520/1/0.02 2.5*/0.02 2.5/0.02425/1/0.02 2.5*/0.02 2.5/0.02330/1/0.02 2.5*/0.02 2.5/0.02340/1/0.02 2.5*/0.02 2.5/0.02250/1/0.02 2.5*/0.02 2.5/0.02260/1/0.02 2.5*/0.02 2.5/0.02230×10/1B,F80/1/0.02 2.5*/0.02 2.5/0.021100/1/0.02 2.5*/0.02 2.5/0.021150/1/0.02 2.5*/

12、0.021200/1/0.02 2.5*/0.025.0/0.021S-40I200/1/0.02 5.0/0.02140×10/130C,F250/1/0.022.5*/0.02 5.0/0.021300/1/0.02 2.5*/0.02 5.0/0.021400/1/0.02 2.5*/0.02 5.0/0.021500/1/0.02 5.0*/0.0210/0.021600/1/0.02 5.0*/0.0210/0.021S-50600/1/0.02 5.0*/0.0210/0.02150×10/1-2/B750/1/0.025.0*/0.0210/0.021800/

13、1/0.02 5.0*/0.0210/0.0211000/1/0.0215/0.0211200/1/0.0220/0.0211250/1/0.0220/0.021S-60300/1/0.02 2.5*/0.02 5.0/0.02160×10/1-2/C400/1/0.02 2.5*/0.02 5.0/0.021500/1/0.02 5.0*/0.0210/0.021600/1/0.02 5.0*/0.0210/0.021750/1/0.025.0*/0.0210/0.021800/1/0.02 5.0*/0.0210/0.0211000/1/0.0215/0.0211200/1/0.

14、0220/0.0211250/1/0.0220/0.0211500/1/0.0220/0.0212000/1/0.0220/0.021S-80600/1/0.02 5.0*/0.0210/0.02180×10/1-2/C750/1/0.02 5.0*/0.0210/0.021800/1/0.02 5.0*/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

15、.021S-1001000/1/0.0215/0.021100×10/1-3/D1200/1/0.0220/0.0211250/1/0.0220/0.0211500/1/0.0220/0.0212000/1/0.0220/0.0212500/1/0.0230/0.0213000/1/0.0230/0.0214000/1/0.0240/0.021S-1202000/1/0.0220/0.021120×10/1-3/D2500/1/0.0230/0.0213000/1/0.0230/0.0214000/1/0.0240/0.0215000/1/0.0240/0.021S-200

16、2000/1/0.0220/0.021100×10/2-6/D2500/1/0.0230/0.0213000/1/0.0230/0.0214000/1/0.0240/0.0215000/1/0.0240/0.0216300/1/0.0240/0.021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。4.1AKH-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

17、PLC 配套使用,其中辅助电源DC24V 由PLC 供电。型号说明 额定电流比规格如50I带模拟量输出的双绕组企业型号额定电压(kV安装方式 规格尺寸尺寸规格外形尺寸(mm穿孔尺寸(mm安装尺寸(mm W H D a eM NSM-50I96146455231404060 SM-6098145456231.5/4257.5 SM-80118152458232/6057.5 SM-1001401554910232/7557.5 SM-1201671874812252/5457.5 SM-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

18、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-50I5/5/4-20mA 2.5/50030/40F 10/5/4-20mA 2.5/5001515/5/4-20mA 2.5/5001020/5/4-20mA 2.5/500825/5/4-20mA 2.5/500630/5/4-20mA 2.5/500540/5/4-20mA 2.5/500450/5/4-20mA 2.5/500360/5/4-20mA 2.5/500375/5/4-20mA 2.5/500280/5/4-20mA 2.5/5002100/5/4-20mA 2.

19、5/5002150/5/4-20mA 2.5/500150×10/B,F1-2 200/5/4-20mA 2.5/5001250/5/4-20mA 2.5/5001300/5/4-20mA 5.0/5001400/5/4-20mA 5.0/500500/5/4-20mA10/500600/5/4-20mA10/500750/5/4-20mA10/500800/5/4-20mA10/5001000/5/4-20mA10/5001200/5/4-20mA15/5001250/5/4-20mA20/500SM-60300/5/4-20mA 5.0/500160×10/1-2/C

20、400/5/4-20mA 5.0/5001500/5/4-20mA10/5001600/5/4-20mA10/5001750/5/4-20mA10/5001800/5/4-20mA10/5001000/5/4-20mA10/5001200/5/4-20mA15/5001250/5/4-20mA20/5001500/5/4-20mA20/5002000/5/4-20mA20/500SM-80600/5/4-20mA10/500180×10/1-2/C 750/5/4-20mA10/5001800/5/4-20mA10/50011000/5/4-20mA10/50011200/5/4-2

21、0mA15/50011250/5/4-20mA20/5001500/5/4-20mA20/5002000/5/4-20mA20/5002500/5/4-20mA30/5003000/5/4-20mA30/500SM-1001000/5/4-20mA10/5001100×10/1-2/D 1200/5/4-20mA15/50011250/5/4-20mA20/50011500/5/4-20mA20/50012000/5/4-20mA20/50012500/5/4-20mA30/50013000/5/4-20mA30/50014000/5/4-20mA30/5001SM-1202000/

22、5/4-20mA20/5001120×10/D 2500/5/4-20mA30/50013000/5/4-20mA30/50011-3 4000/5/4-20mA30/50015000/5/4-20mA30/5001SM-2002000/5/4-20mA20/5001200×10/1-3/D 2500/5/4-20mA30/50013000/5/4-20mA30/50014000/5/4-20mA30/50015000/5/4-20mA30/50016300/5/4-20mA30/5001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

23、(mm安装方式0.2/0.5级0.5/0.5级1.0/1.0级SM-50I5/1/4-20mA 2.5/50030/40F 10/1/4-20mA 2.5/5001515/1/4-20mA 2.5/5001020/1/4-20mA 2.5/500825/1/4-20mA 2.5/500630/1/4-20mA 2.5/500540/1/4-20mA 2.5/500450/1/4-20mA 2.5/500360/1/4-20mA 2.5/500375/1/4-20mA 2.5/500280/1/4-20mA 2.5/5002100/1/4-20mA 2.5/5002150/1/4-20mA 2.

24、5/500150×10/1-2B,F 200/1/4-20mA 2.5/5001250/1/4-20mA 2.5/5001300/1/4-20mA 5.0/5001400/1/4-20mA 5.0/500500/1/4-20mA10/500600/1/4-20mA10/500750/1/4-20mA10/500800/1/4-20mA10/5001000/1/4-20mA10/5001200/1/4-20mA15/5001250/1/4-20mA20/500SM-60300/1/4-20mA 5.0/500160×10/1-2/C 400/1/4-20mA 5.0/5001500/1/4-20mA10/5001600/1/4-20mA10/5001750/1/4-20mA10/5001800/1/4-20mA10/500 1000/1/4-20mA10/50