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Power factor sign :
No sign : The phase of the current signal is lagging
behind the voltage signal (inductive load).
"_" sign : The phase of the current signal is leading the
voltage signal (capacitive load).
Underrange display :
0.000 kW : Vrms <0.5V or Arms <0.5A
PF - - - - : Vrms <0.5V or Arms <0.5A
Overrange display :
OL.U : Voltage overload ( Vrms > 1000V)
OL.A : Current overload (Arms > 620A)
OL.UA : Both Voltage and current overload.
±OL kW : Active Power > 600 kW or < -600 kW.
3-2 Three Phase Power Measurement
a. 3 phase 3 wire balanced / unbalanced
Set the rotary switch to the PF W~ position.
W=W1+W2
1
3
2
Wye or star
Black
42
W1
W2
Red
Black
Red