Siemens SIPROTEC 7SD80 - Page 236

Mounting and Commissioning
3.1 Mounting and Connections
SIPROTEC, 7SD80, Manual
E50417-G1140-C474-A1, Release date 09.2011
236
Example
The closest standard value 200 kΩ is selected; the following applies for the power:
I
BI (HIGH)
0.25 mA (SIPROTEC 4 7SD80)
V
BI min
19 V at delivery setting for nominal voltages of 24 V/ 48 V; 88 V at delivery setting
for nominal voltages of 60 V/ 110 V/ 125 V/ 220 V/ 250 V)
V
CTR
110 V (from the system / trip circuit)
R
CBTC
500 Ω (from the system / trip circuit)
V
CBTC (LOW)
2 V (from the system / trip circuit)