ABB RET670 Applications Manual page 758

Section 3
IED application
752
VBase: Base voltage in primary kV. This voltage is used as reference for voltage
setting. It can be suitable to set this parameter to the rated primary voltage supervised
object.
IBase: Base current in primary A. This current is used as reference for current setting.
It can be suitable to set this parameter to the rated primary current of the supervised object.
SBase: Base setting for power values in MVA.
VMagCompY: Magnitude compensation to calibrate voltage measurements at Y% of
Vn, where Y is equal to 5, 30 or 100.
IMagCompY: Magnitude compensation to calibrate current measurements at Y% of In,
where Y is equal to 5, 30 or 100.
IAngCompY: Angle compensation to calibrate angle measurements at Y% of In, where
Y is equal to 5, 30 or 100.
Parameters IBase, Ubase and SBase have been implemented as a
settings instead of a parameters, which means that if the values of the
parameters are changed there will be no restart of the application. As
restart is required to activate new parameters values, the IED must be
restarted in some way. Either manually or by changing some other
parameter at the same time.
The following general settings can be set for the Phase-phase current measurement
(CMMXU).
IMagCompY: Magnitude compensation to calibrate current measurements at Y% of In,
where Y is equal to 5, 30 or 100.
IAngCompY: Angle compensation to calibrate angle measurements at Y% of In, where
Y is equal to 5, 30 or 100.
The following general settings can be set for the Phase-phase voltage measurement
(VMMXU).
VMagCompY: Amplitude compensation to calibrate voltage measurements at Y% of
Vn, where Y is equal to 5, 30 or 100.
VAngCompY: Angle compensation to calibrate angle measurements at Y% of Vn,
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, V, I, F, IA,IB,IC, VA, VB, VCVAB, VBC,
VCA, I1, I2, 3I0, V1, V2 or 3V0.
1MRK504116-UUS C
Application manual