It is possible to calibrate the measuring function above to get better then class 0.5
presentation. This is accomplished by angle and amplitude compensation at 5, 30
and 100% of rated current and at 100% of rated voltage.
The power system quantities provided, depends on the actual
hardware, (TRM) and the logic configuration made in PCM600.
The measuring functions CMSQI and VMSQI provide sequence component
quantities:
• I: sequence currents (positive, zero, negative sequence, amplitude and angle)
• U: sequence voltages (positive, zero and negative sequence, amplitude and
angle).
15.1.3 Function block
SEMOD130334-4 v7
The available function blocks of an IED are depending on the actual hardware
(TRM) and the logic configuration made in PCM600.
CVMMXN
I3P*
U3P*
S
S_RANGE
P_INST
P
P_RANGE
Q_INST
Q
Q_RANGE
PF
PF_RANGE
ILAG
ILEAD
U
U_RANGE
I
I_RANGE
F
F_RANGE
IEC10000016-1-en.vsd
IEC10000016 V1 EN-US
Figure 252: CVMMXN function block
IEC05000699-2-en.vsd
CMMXU
I3P* IL1
IL1RANG
IL1ANGL
IL2
IL2RANG
IL2ANGL
IL3
IL3RANG
IL3ANGL
IEC05000699 V2 EN-US
Figure 253: CMMXU function block
1MRK 505 394-UEN A Section 15
Monitoring
Line differential protection RED650 2.2 IEC 499
Technical manual
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