Instruction Manual

Chapter 3 Using Front Display
Data Displays
EM720 Power Quality and Revenue Meter 41
I3 THD maximum demand
Engineering Data Display
Engineering data represent general instrumentation data you
can use while installation and inspecting the meter. Use
phase angles displays to check the order of phases when
connecting wires to the meter terminals.
Phase-to-neutral voltages. Only displayed in 4-wire
configurations with a neutral.
Phase-to-phase voltages
Phase currents
Auxiliary current
Neutral current
Frequency
Total powers
Total power factor
Voltage unbalance, %
Current unbalance, %
Phase voltage THD
Indicate phase-to-phase voltage THD in line-to-line
configurations
Phase current THD
Short-term flicker