XLimHyst: Hysteresis value in % of range and is common for all limits.
All phase angles are presented in relation to defined reference channel. The parameter
PhaseAngleRef defines the reference, see section
""
.
Calibration curves
It is possible to calibrate the functions (CVMMXN, CMMXU, VMMXU and VNMMXU) to get class
0.5 presentations of currents, voltages and powers. This is accomplished by amplitude and
angle compensation at 5, 30 and 100% of rated current and voltage. The compensation curve
will have the characteristic for amplitude and angle compensation of currents as shown in
(example). The first phase will be used as reference channel and compared with the
curve for calculation of factors. The factors will then be used for all related channels.
IEC05000652 V2 EN-US
Figure 397: Calibration curves
17.1.4.1
Setting examples
SEMOD54481-4 v4
Three setting examples, in connection to Measurement function (CVMMXN), are provided:
•
Measurement function (CVMMXN) application for a OHL
•
Measurement function (CVMMXN) application on the secondary side of a transformer
•
Measurement function (CVMMXN) application for a generator
For each of them detail explanation and final list of selected setting parameters values will be
provided.
The available measured values of an IED are depending on the actual hardware
(TRM) and the logic configuration made in PCM600.
1MRK 505 343-UEN B
Section 17
Monitoring
655
Application manual
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