Woodward SEG HighPROTEC MRA4, Device Manual

Page: 229 / 510

Field Parameters
Field Parameters
Field Para
Within the field parameters you can set all parameters, that are relevant for the primary side and the mains
operational method like frequency, primary and secondary values and the star point treatment.
Parameter Description Setting range Default Menu path
Phase Sequence Phase Sequence direction ABC,
ACB
ABC [Field Para]
f Nominal frequency 50Hz,
60Hz
50Hz [Field Para]
VT pri Nominal voltage of the
Voltage Transformers at the
primary side
60 - 500000V 10000V [Field Para]
VT sec Nominal voltage of the
Voltage Transformers at the
secondary side.
60.00 - 400.00V 100V [Field Para]
VT con This parameter has to be set
in order to ensure the correct
assignment of the voltage
measurement channels in the
device.
Phase to Earth,
Phase to
Phase
Phase to Earth [Field Para]
EVT pri Primary nominal voltage of the
e-n winding of the voltage
transformers, which is only
taken into account in the
direct measurement of the
residual voltage (EVT
con=measured/open delta).
60 - 500000V 10000V [Field Para]
EVT sec Secondary nominal voltage of
the e-n winding of the voltage
transformers, which is only
taken into account in the
direct measurement of the
residual voltage (EVT
con=measured/open delta).
35.00 - 400.00V 100V [Field Para]
EN MRA4 04/09 Page 229