LEM 二线制、真有效值输出交流电压变送器

产品型号: ATVR-D420L 原产地: 瑞士 详细说明 随着电网的谐波成分的日益复杂，传统的测量方式不再能够满足测量精度要求。真有效值输出，是一个非常好的解决途径。 Electrical data ATVR120-D420L ATVR250-D420L ATVR400-D420L VPN 120 250 400 V VP primary voltage measuring range 120 %VPN ISN Secondary nominal current @Vp=0: Is=4 mA @Vp=VpN: Is=20 mA Va Auxiliary supply(Loop-powered ± 5%) DC24 V Vd R.m.s. voltage for AC isolation test 1 min 2.5kV Accurancy-dynamic performance data XG Accurancy(TA = 25 °C) <± 1 % eL Linearity error <± 0.5 % t r Response time @ 90 % of IP max < 250 ms f Frequency bandwidth(-1dB) 40~5K Hz Gerneral data TA Ambient operating temperature -10.. + 70 °C TS Ambient storage temperature -15.. + 80 °C RM Measuring resistance < 500 ohm m Mass 60 g Standarda EN50178