The protection function can detect ground faults in the entire rotor winding and associated
connections.
Requires injection unit REX060 and a coupling capacitor unit REX061 for correct operation.
7.13.3 Function block
GUID-9ECCA83B-BE74-4C01-9C51-0E3295D9CC75 v1
ANSI10000297-1-en.vsd
ROTIPHIZ (64R)
USV*
USI*
BLOCK
ZREFSEL
TRIP
TRIPDC
TRIPAC
BFI
PU_DC
PU_DC
ALARM
ERROR
ERRSTAT
RAVE
XAVE
FREQV
RFAULT
ZREF
ZREFRE
ZREFIM
VRMSSTAT
ANSI10000297 V1 EN-US
Figure 213: ROTIPHIZ (64R) function block
7.13.4 Signals
GUID-2A2A199D-271A-4F9D-9BF6-D23FAEFB37D8 v2
PID-6723-INPUTSIGNALS v2
Table 179: ROTIPHIZ (64R) Input signals
Name Type Default Description
USV GROUP
SIGNAL
- Injected voltage signal
USI GROUP
SIGNAL
- Injected current signal (voltage over shunt)
BLOCK BOOLEAN 0 Block of function
ZREFSEL INTEGER 1 Reference impedance selection
PID-6723-OUTPUTSIGNALS v2
Table 180: ROTIPHIZ (64R) Output signals
Name Type Description
TRIP BOOLEAN Trip (common AC and DC side of exciter)
TRIPDC BOOLEAN Trip for DC side of exciter
TRIPAC BOOLEAN Trip for AC side of exciter
BFI BOOLEAN Initiate (common AC and DC side of exciter)
PU_DC BOOLEAN Pick up for DC side of exciter
PU_AC BOOLEAN Pick up for AC side of exciter
ALARM BOOLEAN Alarm
Table continues on next page
Section 7 1MRK 502 066-UUS B
Impedance protection
396
Technical manual
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