3-Phase Meter

As part of the FireFly platform, we have a 3-phase metering sensor board for measuring energy consumption at power mains. The board is based on the analog devices ADE7878 metering chip with the following specs:

  • Highly Accurate; support EN 50470-1, EN 50470-3, IEC 62053-21, IEC 62053-22, and IEC 62053-23 standards
  • Supplies total (fundamental and harmonic) active/reactive/ apparent energy and fundamental active/reactive energy on each phase and on the overall system
  • Less than 0.1% error in active and reactive energy over a dynamic range of 1000 to 1 at TA = 25°C
  • Less than 0.2% error in active and reactive energy over a dynamic range of 3000 to 1 at TA = 25°C
  • Less than 0.1% error in voltage and current rms over a dynamic range of 1000 to 1 at TA = 25°C
  • Phase angle measurements in both current and voltage channels with a typical 0.3 degree error
  • 24MHz sampling rate with 8kHz output rate

3phase-meter-box.jpg (589 KB) Anthony Rowe, 11/11/2013 06:17 am

3-phase-meter.png (647 KB) Anthony Rowe, 11/11/2013 06:21 am