Accuracy Of The Frequency Measurement - Siemens Sicam P855 7KG85 Series Device Manual

4.3.3

Accuracy of the Frequency Measurement

Table 4-16
Circuit
Voltage to V
a-N
Voltage to V
b-N
Voltage to V
c-N
NOTE
The frequency at measuring circuit V
the measurement will automatically be carried out at measuring circuit V
smaller than 30 % of V
SICAM P850/P855, 7KG85xx, Device Manual
E50417-H1040-C482-A6, Edition 10.2018
Accuracy of the Frequency Measurement
0 % to 15 % V
15 % to 30 % V
30 % to 120 % V
0 % to 15 % V
15 % to 30 % V
30 % to 50 % V
50 % to 120 % V
0 % to 15 % V
15 % to 30 % V
30 % to 120 % V
a-N
, the measurement will automatically be carried out at measuring circuit V
nom
Accuracy
: invalid
rated
: 40 mHz
rated
: 10 mHz
rated
: invalid
rated
: 40 mHz
rated
: 30 mHz
rated
: 20 mHz
rated
: invalid
rated
: 40 mHz
rated
: 10 mHz
rated
is measured first. If the voltage V
4 Measurands and Recording
4.3 Display of Measurands
is smaller than 30 % of V
a-N
. If the voltages V and V
c-N a-N
,
rated
are
c-N
.
b-N
67