Siemens SIPROTEC 7SJ61 Manual page 261

I
BI (HIGH)
V
BI min
V
CTR
R
CBTC
V
CBTC (LOW)
If the calculation results in R
old V , and this threshold must be implemented in the relay using plug-in jumpers (see Section „Hardware
BI min
Modifications").
For the power consumption of the resistance:
Example:
I
BI (HIGH)
V
BI min
V
CTR
R
CBTC
V
CBTC (LOW)
SIPROTEC, 7SJ61, Manual
C53000-G1140-C210-1, Release date 02.2008
Constant current with activated BI ( = 1.8 mA)
minimum control voltage for BI
(= 19 V for delivery setting for nominal voltage of 24/48/60/125 V;
88 V for delivery setting for nominal voltage of 110/125/220/250 V)
Control Voltage for Trip Circuit
DC resistance of circuit breaker trip coil
Maximum voltage on the circuit breaker trip coil that does not lead to tripping
< R , the calculation must be repeated, with the next lowest switching thresh-
max min
1.8 mA (SIPROTEC 4 7SJ61)
19 V for delivery setting for nominal voltage of 24/48/60/125 V (device 7SJ61)
88 V for delivery setting for nominal voltage of 110/125/220/250 V (device 7SJ61)
110 V (system / release circuit)
500 Ω (from system / trip circuit)
2 V (system / release circuit)
Mounting and Commissioning
3.1 Mounting and Connections
261