ABB REG316 4 Series Operating Instructions Manual page 291

Numerical generator protection
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REG 316*4 1MRB520049-Uen / Rev. F
Explanation of parameters:
ParSet 4..1
Parameter for determining in which set of parameters a par-
ticular function is active
Trip
defines the tripping channel activated by the tripping output of
the function (tripping logic).
Alarm-Delay
Time between pick-up of the alarm stage and an alarm.
Trip-Delay
Time between pick-up of the tripping stage and a trip.
RFr-AlarmVal
Ground fault resistance setting for alarm.
RFr for alarm must be higher than RFr for tripping.
RFr-TripVal
Ground fault resistance setting for tripping.
REr
Grounding resistor REr.
Uir
The normal rotor injection voltage is 50 V. Provision is also
made for an injection voltage of 20 or 30 V by appropriately
changing the wiring on the injection transformer unit Type
REX 011.
RFr-Adjust
Simulated ground fault resistance used as a reference value
for calculating REr in the 'REr-Adjust' mode.
CouplingCap
The total capacitance C of the two coupling capacitors in
parallel.
VoltageInpUi
defines the voltage input channel for the reference voltage Ui.
Channel 8 must be used.
VoltageInpUr
defines the voltage input channel for the measured voltage
Ur. Channel 7 must be used.
(see Section
5.11.).
ABB Switzerland Ltd
3-253

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