Energy Metering ICs Deliver 0.1% Accuracy
Mon, 02/08/2010 - 7:28am
Analog Devices, Inc. announces four energy metering ICs designed to improve the accuracy and performance of commercial, industrial and residential smart meters. The ADE7878, ADE7868, ADE7858 and ADE7854 high-accuracy energy metering ICs are designed for poly-phase configurations, including three and four wire, wye and delta services. The ICs feature 0.1% accuracy for both active and reactive energy measurements over a dynamic range of 1000:1 a first for the industry and 0.2% accuracy for both active and reactive energy measurements over a dynamic range of 3000:1. The products also deliver 0.1% accuracy over 1000:1 dynamic range for RMS (root-mean square) current and voltage measurements. In addition to per-phase and neutral-energy measurements, the devices are able to monitor energy quality parameters such as SAG, peak, period, angle measurements and phase sequence. Another industry first is the ability of the ADE7868 and ADE7878 to detect various tamper conditions while continuing to operate properly reducing field calls and meter troubleshooting time.