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4.3.2 Measured Quantities and Operational Measurement Accuracy acc. to
IEC 61557-12
Table 4-20 Measured Quantities and their Operational Measurement Accuracy
Measured Quantity
Current I
Acc. to parameterization
Current unbalance
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 13.2)
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.
SICAM Q100, 7KG95xx, Device Manual
E50417-H1040-C522-A4, Edition 03.2018
Unit
Rated Value
Auto range (1 A
A
to 5 A)
%
-
W
-
var
-
VA
-
-
-
1)
-
-
Degree
-
Wh
-
varh
-
VAh
-
%
-
ph
%
-
ph
A
-
ph
4 Measured Quantities and Recording
4.3 Display of Measured Quantities
Measurement
Range
10 % to 200 % I
0.2
rated
0 % to 100 % I
±0.2 %
rated
1 % to 200 % I
0.2
rated
2 % to 200 % I
1
rated
-
0.2
0.5 inductive to 0.8
1
capacitive
-1 to +1
±1 %
-180° to +180°
±2°
0.2
1 % to 200 % I
Class 0.2S acc. to
rated
IEC 62053-22
2
2 % to 200 % I
Class 0.5S acc. to
rated
IEC 62053-24
2 % to 200 % I
0.2
rated
0 % to 100 %
±0.5 %
0 % to 100 %
±0.5 %
Condition:
10 % I
I
m
Maximum error:
±5 % I
-
-------------------------------
Condition:
I
< 10 % I
m
Maximum error:
±0.5 % I
Accuracy Class
2)
2)
2)
2)
2)
rated
m
rated
rated
77
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