XHiHiLim: High-high limit. Set in applicable measuring unit.
XHiLim
: High limit.
XLowLim: Low limit.
XLowLowLim: Low-low limit.
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
“Analog inputs”.
Calibration curves
It is possible to calibrate the functions (CMMXU, VMMXU and VNMMXU) to
get class 0.5 presentations of currents and voltages. 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 figure
159 (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 159: Calibration curves
Section 15 1MRK 506 375-UEN A
Monitoring
384 Railway application RER670 2.2 IEC
Application manual
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