Measurands And Operational Measurement Accuracy Acc. To Iec 61557-12 - Siemens SENTRON PAC5200 Device Manual

4.3.2

Measurands and Operational Measurement Accuracy acc. to IEC 61557-12

Table 4-16 Measurands and their Operational Measurement Accuracy
Measurands
Current I
Acc. to parameterization
Current unbalance I
unbal
Active power P
+ demand, - supply
Reactive power Q
+ inductive, - capacitive
Apparent power S
1)
Power factor PF
Active power factor cos 
1)
Phase angle 
Active energy WP
+demand, -supply
Reactive energy WQ
inductive, capacitive
Apparent energy WS
Subgroup Total harmonics
distortion of voltage THDS V
Subgroup Total harmonics
distortion of current THDS I
Harmonics of current H_xI
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.
SENTRON PAC5100/5200, 7KM5212/5412, Device Manual
E50417-H1040-C568-A1, Edition 03.2015
Unit Rated Value
A AC 1 A
AC 5 A
% -
W -
var -
VA -
- -
1)
- -
Degree -
Wh -
varh -
VAh -
% -
ph
% -
ph
A -
ph
4 Measurands and Recording
Measurement
Range
20 % to 200 % I 0.2
rated
0 % to 100 % I 0.2
rated
20 % to 200 % I 0.5
rated
20 % to 200 % I 0.5
rated
20 % to 200 % I 0.5
rated
0 to 1 1.0
-1 to +1 1.0 %
-180° to +180° ±2°
20 % to 200 % I 0.5
rated
Class 0.5S acc. to
IEC62053-22
20 % to 200 % I 0.5
rated
Class 2 acc. to
IEC62053-23
20 % to 200 % I 0.5
rated
0 % to 100 % 0.5
0 % to 100 % 0.5
- Condition:
I
m
Maximum error:
±5 % I
-------------------------------
Condition:
I
m
Maximum error:
±0.5 % I
4.3 Display of Measurands
Accuracy Class
2)
 10 % I
rated
m
< 10 % I
rated
rated
65