9.3 Operational Measured Values - Siemens SIPROTEC 5 Manual

Measured and Energy Values

9.3 Operational Measured Values

9.3 Operational Measured Values
Operational measured values are assigned to different function groups.
The values can be displayed as primary and secondary values and as percentage values.
The operational measured values are calculated according to the following definition equations:
RMS values
Active power
Apparent power
Reactive power
Power factor
Active power factor
Operational Measured Values of the Function Groups
The following table describes the operational measured values of the Voltage, 3-phase and Voltage/current
3-phase function groups.
All recorder functions have access to the values.
Table 9-1
Measured Values
I , I , I Phase currents
A B C
3I Calculated zero-sequence
0
current
I Neutral-point phase current
N
I Sensitive ground current
NS
V , V , V Phase-to-ground voltages
A B C
V , V , V Phase-to-phase voltage
AB BC CA
V Calculated zero-sequence
0
voltage
V Measured neutral-point
N
displacement voltage
f Frequency
P Active power
(total power)
Q Reactive power
(total power)
414
n Harmonic order
φ The angle difference between the voltage and current of the nth harmonic
n
Operational Measured Values of the Voltage/Current 3-Phase Function Group
Primary
A
A
A
A
kV
kV
kV
kV
Hz
MW
Mvar
Secon- % Referenced to
dary
A Rated operating current of the primary values
A Rated operating current of the primary values
A Rated operating current of the primary values
mA Rated operating current of the primary values
V Rated operating voltage of primary values/√3
V Rated operating voltage of the primary values
V Rated operating voltage of primary values/√3
V Rated operating voltage of primary values/√3
Hz Rated frequency
W Active power of the primary values
√3 · V · I
rated rated
var Reactive power of the primary values
√3 · V · I
rated rated
C53000-G5040-C018-5, Edition 11.2017
SIPROTEC 5, Fault Recorder, Manual