Siemens 9410 Series - Page 189

Verifying accuracy 9410 series
Watt-hour test point Sample accuracy verification test point
Full load 100% to 200% of the nominal current, 100% of the nominal voltage and
nominal frequency at unity power factor or one (1).
Light load 10% of the nominal current, 100% of the nominal voltage and nominal
frequency at unity power factor or one (1).
Inductive load (lagging
power factor)
100% of the nominal current, 100% of the nominal voltage and nominal
frequency at 0.50 lagging power factor (current lagging voltage by 60° phase
angle).
VAR-hour test point Sample accuracy verification test point
Full load 100% to 200% of the nominal current, 100% of the nominal voltage and
nominal frequency at zero power factor (current lagging voltage by 90° phase
angle).
Light load 10% of the nominal current, 100% of the nominal voltage and nominal
frequency at zero power factor (current lagging voltage by 90° phase angle).
Inductive load (lagging
power factor)
100% of the nominal current, 100% of the nominal voltage and nominal
frequency at 0.87 lagging power factor (current lagging voltage by 30° phase
angle).
7EN05-0336-03 189