Energy Logger
Function Selection Buttons
21
3-Ф Wye IT
The logger has a galvanic isolation between the voltage
inputs and ground based signals like USB and mains
input.
Example: Industrial power in countries that use the IT
(Isolated Terra) system, such as Norway.
A/L1
C/L3
B/L2
N
hcf047.eps
Energy Study
A/L1
C/L3
B/L2
N
hcf048.eps
Load Study (no voltage measurement)
3-Ф Wye Balanced
Example: For symmetrical loads like motors the
connection can be simplified by measuring only one phase
and assuming the same voltages/currents on the other
phases.
A/L1
C/L3
B/L2
N
hcf049.eps
Energy Study
A/L1
C/L3
B/L2
N
hcf050.eps
Load Study (no voltage measurement)
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