Fluke 1738/B - 3-Ф Wye; 3-Ф Wye IT

Power Logger
Function Selection Buttons
25
3-Ф Wye
Example: Also called “Star” or four-wire connection. Typical
commercial building power.
Energy Study
Load Study (no voltage measurement)
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.
Energy Study
Load Study (no voltage measurement)