Polyphase Multifunction Energy Metering
Data Sheet
Polyphase Multifunction Energy Metering IC
ADE7854A/ADE7858A/ADE7868A/ADE7878A
FEATURES
Highly accurate; su...
Description
Data Sheet
Polyphase Multifunction Energy Metering IC
ADE7854A/ADE7858A/ADE7868A/ADE7878A
FEATURES
Highly accurate; supports EN 50470-1, EN 50470-3, IEC 62053-21, IEC 62053-22, and IEC 62053-23 standards
Compatible with 3-phase, 3- or 4-wire (delta or wye) meters, and other 3-phase services
Supplies total (fundamental and harmonic) active, reactive, and apparent energy and fundamental active/reactive energy on each phase and on the overall system
0.1% error (typical) in active and reactive energy over a dynamic range of 1000 to 1 at TA = 25°C
0.2% error (typical) in active and reactive energy over a dynamic range of 3000 to 1 at TA = 25°C
Averaged rms measurements available in low ripple rms registers
Supports current transformer and di/dt current sensors Dedicated ADC channel for neutral current input Estimated neutral current measurement by calculating the
rms of the sum of the phase currents in all 3 phases 0.1% error (typical) in voltage and current rms over a
dynamic range of 1000 to 1 at TA = 25°C Supplies sampled waveform data on all 3 phases and on
neutral current Selectable no load thresholds for total and fundamental
active and reactive powers, as well as for apparent powers Highly accurate low power battery mode phase current
monitoring for antitampering detection Battery supply input for missing neutral operation Phase angle measurements in current and voltage channels Calibration frequency (CF) output directly drives LED and
opto-isolators Reference: 1.2 V (dri...
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