Measuring value Display Accuracy Measuring start Notes
Delta system A /
system B
2 % (of PT secondary
voltage setting)
1
Current
System A 0 to 32,000 A
1 % (of 1/5 A)
3
1 % (of 1/5 A)
3
System B
Max. value
Real power
Actual total real power
value
-2 to 2 GW 2 % (of 120/480 V *
1/5 A)
2/3
Measuring starts when
voltage is recognized
Reactive power
Actual value in L1, L2,
L3
-2 to 2 Gvar 2 % (of 120/480 V *
1/5 A)
2/3
Measuring starts when
voltage is recognized
Power factor
Actual value power
factor L1
lagging 0.00 to 1.00 to
leading 0.00
2 %
2 % (of 1/5 A)
3
1.00 is displayed for
measuring values
below the measuring
start
Miscellaneous
Battery voltage 8 to 40 V 1 % (of 24 V)
Phase angle -180 to 180 ° 1.25 % (of PT
secondary volt.
setting)
180 ° is displayed for
measuring values
below measuring start
Analog input
0 to 20 mA Freely scalable 1 % (of 20 mA) Single-pole and two-
pole senders
1
Setting of the parameter for the PT secondary rated voltage
2
Depending on the used measuring inputs (120/480 V)
3
Depending on the CT input hardware (1/5 A) of the respective unit
Reference conditions
The reference conditions for measuring the accuracy are listed below.
Input voltage Sinusoidal rated voltage
Input current Sinusoidal rated current
Frequency Rated frequency +/- 2 %
Power supply Rated voltage +/- 2 %
Power factor (cos φ) 1.00
Ambient temperature 23 °C +/- 2 K
311LS-5 v2 Series37650
8 Technical Specications
8.3 Accuracy