Siemens SENTRON PAC5100, Device Manual, Page: 65 / 266

4 Measurands and Recording
4.3 Display of Measurands
65 SENTRON PAC5100/5200, 7KM5212/5412, Device Manual
E50417-H1040-C568-A1, Edition 03.2015
4.3.2 Measurands and Operational Measurement Accuracy acc. to IEC 61557-12
1) Measurement from 2 % of the rated apparent power value onwards in the selected measuring range (see
Chapter 12.2)
2)
The IEC 61557-12 standard does not specify any accuracy class for these variables. The specifications
refer to the maximum deviation from the actual value.
Table 4-16 Measurands and their Operational Measurement Accuracy
Measurands Unit Rated Value Measurement
Range
Accuracy Class
Current I
Acc. to parameterization A AC 1 A
AC 5 A 20 % to 200 % I
rated
0.2
Current unbalance I
unbal
% - 0 % to 100 % I
rated
0.2
Active power P
+ demand, - supply W - 20 % to 200 % I
rated
0.5
Reactive power Q
+ inductive, - capacitive var - 20 % to 200 % I
rated
0.5
Apparent power S VA - 20 % to 200 % I
rated
0.5
Power factor PF
1)
- - 0 to 1 1.0
Active power factor cos

1)
- - -1 to +1 1.0 %
Phase angle

1)
Degree - -180° to +180° ±2°
2)
Active energy WP
+demand, -supply Wh - 20 % to 200 % I
rated
0.5
Class 0.5S acc. to
IEC62053-22
Reactive energy WQ
inductive, capacitive varh - 20 % to 200 % I
rated
0.5
Class 2 acc. to
IEC62053-23
Apparent energy WS VAh - 20 % to 200 % I
rated
0.5
Subgroup Total harmonics
distortion of voltage THDS V
ph
% - 0 % to 100 % 0.5
Subgroup Total harmonics
distortion of current THDS I
ph
% - 0 % to 100 % 0.5
Harmonics of current H_xI
ph
A - - Condition:
I
m

10 % I
rated
Maximum error:
±5 % I
m
-------------------------------
Condition:
I
m
< 10 % I
rated
Maximum error:
±0.5 % I
rated