ABB REF 54 Series Technical Reference Manual, General page 64

REF 54_
64
Feeder Terminal
Technical Reference Manual, General
The values in Table 5.1.11-1 are recommended for the resistor R
Table 5.1.11-1 Shunt resistor values for different operating voltages
Operating voltage Uc
48 V DC
60 V DC
110 V DC
220 V DC
CBPOS_open
TCS blocking
Fig. 5.1.11.-1 Operating principle of the trip-circuit supervision (TCS), without
an external resistor. The TCS blocking switch is closed, blocking
the TCS1 when the circuit breaker is open. The terminal numbers
are related to HSPO1.
Shunt resistor Rh
ext
Ω
1.2 k , 5 W
Ω
5.6 k , 5 W
Ω
22 k , 5 W
Ω
33 k , 5 W
1MRS750527-MUM
:
ext
TCSclose_b