Manual 37353A
MFR 13 Packages - Protection Relay
© Woodward
Page 73/91
Appendix C.
Measured Quantities and Accuracy
Measuring value
Display/range
Accuracy
Note
Frequency
f
L1
, f
L2
, f
L3
40.0 to 80.0 Hz
0.05 Hz
Voltage
V
L1
, V
L2
, V
L3
, V
L12
, V
L23
, V
L31
0 to 520 V/0 to 65 kV
1 %
Accuracy depending on the
configured transformer ratio
Current
I
L1
, I
L2
, I
L3
0 to 9,999 A
1 %
Accuracy depending on the
configured transformer ratio
Real power
Total real actual power
-32.0 to 32.0 MW
2 %
Accuracy depending on the
configured transformer ratio
Re-active power
Actual value in L1, L2, L3
-32.0 to 32.0 Mvar
2 %
Accuracy depending on the
configured transformer ratio
Apparent power
Actual value in L1, L2, L3
0 to 45.0 MVA
2 %
Accuracy depending on the
configured transformer ratio
Power factor (cos
ϕ
)
Actual value (cos
ϕ
L1
)
c0.00 to 1.00 to i0.00
1.5 °
-
Reference conditions:
The data apply to the following reference conditions:
•
Input voltage = sinusoidal rated voltage
•
Input current = sinusoidal rated current
•
Frequency = rated frequency ± 2 %
•
Power supply = rated voltage ± 2 %
•
Power factor cos
ϕ
= 1
•
Ambient temperature 23 °C ± 2 K
•
Warm-up period = 20 minutes.
