Table 45: 100MVA machine application when LV side 1000/5 CT is used
Parameter name Selected value Comment
MeasurCurrent DC In order to measure directly rotor
winding DC current
IBase 810 Rated current of the field winding (i.e.
field current required to produce rated
output from the stator)
CT_Location
LV_winding LV side 1000/5 CT used for
measurement
UrLV 400.0 Rated LV side AC voltage (in Volts)
UrHV 18.00 Rated HV side AC voltage in kV
PhAngleShift 150 5*30= 150 degree, this provides 150
degrees clock-wise phase angle shift
across the excitation transformer
Note that last three parameters from the table above have no direct influence on
function operation (that is, LV side CT is used) but are anyhow set to the correct
values.
Table 46: 315MVA machine application when HV side 100/5 CT is used
Parameter name
Selected value Comment
MeasurCurrent DC In order to measure directly rotor
winding DC current
IBase 1520 Rated current of the field winding (i.e.
field current required to produce rated
output from the stator)
CT_Location
HV_winding HV side 100/5 CT used for
measurement
UrLV 550.0 Rated LV side AC voltage (in Volts)
UrHV 11.00 Rated HV side AC voltage in kV
PhAngleShift -30 11*30-360=-30 degree, this provides 30
degrees anti-clock-wise phase angle
shift across the excitation transformer
Note that last three parameters from the table above must be properly set in order to
have proper operation of the rotor overload function.
The rest of the parameters can be set with the default values, if the generator is
fabricated according to IEEE-C50.13. The parameters have to be changed according
to the specifications, if different standards are applicable.
The parameters for the Generator rotor overload protection GRPTTR are set via the
local HMI or PCM600.
Section 9 1MRK 502 071-UEN -
Current protection
402 Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
Application manual
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