Siemens SICAM P850 Produktinformation Seite 72

Measurands
Active energy WP supply
Reactive energy WQ ind.
Reactive energy WQ cap.
Apparent energy WS
THD voltage THD V
THD current THD I
Harmonics voltage
H_x V
ph
Harmonics current
H_x I
ph
1)
Tolerance limits apply to the entire rated operating
range.
2)
Measurement from 2 % of the rated apparent
power value onwards in the selected measuring
range (see reference conditions Chapter 19.4)
3)
The accuracy of the frequency measurement dif-
fers according to device type and voltage and
ranges between 10 mHz and 40 mHz. The
SICAM P850/P855 device manual provides
detailed information.
Recording in SICAM P855
The device manual provides a detailed description of
recording measurands and events.
28
Circuit
a, b, c, Σ
a, b, c, Σ
a, b, c, Σ
a, b, c, Σ
a-N, b-N, c-N ±0.5 %
ph
a, b, c
ph
a-N, b-N, c-N
a, b, c
SICAM P850/P855 7KG85xx, Product Information
E50417-B1050-C482-A3, Edition 03.2013
Tolerance
1)
limits
±0.5 %
±0.5 %
±0.5 %
±0.5 %
±0.5 %
±5 % V at
m
≥ 3 % V
V
m rat.;
±0.15 % V
rated
V < 3 % V
m rated
±5 % I at
m
≥ 10 % I
I
m rated;
±0.5 % I at
rated
I < 10 % I
m rated