ABB RELION 670 Series Applications Manual page 646

Section 17
Monitoring
UGenZeroDb : Minimum level of voltage in % of UBase used as indication of zero voltage (zero
point clamping). If measured value is below
IGenZeroDb : Minimum level of current in % of IBase used as indication of zero current (zero
point clamping). If measured value is below
UAmpCompY : Amplitude compensation to calibrate voltage measurements at Y% of Ur, where
Y is equal to 5, 30 or 100.
IAmpCompY : Amplitude compensation to calibrate current measurements at Y% of Ir, where Y
is equal to 5, 30 or 100.
IAngCompY : Angle compensation to calibrate angle measurements at Y% of Ir, where Y is
equal to 5, 30 or 100.
The following general settings can be set for the Phase-phase current measurement
(CMMXU).
IAmpCompY : Amplitude compensation to calibrate current measurements at Y% of Ir, where Y
is equal to 5, 30 or 100.
IAngCompY : Angle compensation to calibrate angle measurements at Y% of Ir, where Y is
equal to 5, 30 or 100.
The following general settings can be set for the Phase-phase voltage measurement
(VMMXU).
UAmpCompY : Amplitude compensation to calibrate voltage measurements at Y% of Ur, where
Y is equal to 5, 30 or 100.
UAngCompY : Angle compensation to calibrate angle measurements at Y% of Ur, where Y is
equal to 5, 30 or 100.
The following general settings can be set for all monitored quantities included in the
functions (CVMMXN, CMMXU, VMMXU, CMSQI, VMSQI, VNMMXU) X in setting names below
equals S, P, Q, PF, U, I, F, IL1-3, UL1-3UL12-31, I1, I2, 3I0, U1, U2 or 3U0.
Xmin : Minimum value for analog signal X set directly in applicable measuring unit.
Xmax : Maximum value for analog signal X.
XZeroDb : Zero point clamping. A signal value less than XZeroDb is forced to zero.
Observe the related zero point clamping settings in Setting group N for CVMMXN
UGenZeroDb and IGenZeroDb ). If measured value is below UGenZeroDb and/or IGenZeroDb
(
calculated S, P, Q and PF will be zero and these settings will override
XRepTyp : Reporting type. Cyclic ( Cyclic ), amplitude deadband ( Dead band ) or integral
deadband (
XDbRepInt : Reporting deadband setting. Cyclic reporting is the setting value and is reporting
interval in seconds. Amplitude deadband is the setting value in % of measuring range. Integral
deadband setting is the integral area, that is, measured value in % of measuring range
multiplied by the time between two measured values.
XHiHiLim : High-high limit. Set in applicable measuring unit.
XHiLim : High limit.
XLowLim : Low limit.
XLowLowLim : Low-low limit.
640
Int deadband ). The reporting interval is controlled by the parameter XDbRepInt .
UGenZeroDb calculated S, P, Q and PF will be zero.
IGenZeroDb calculated S, P, Q and PF will be zero.
1MRK 504 152-UEN B
XZeroDb .
Application manual