Siemens SIPROTEC 4 7SD80

For the power consumption of the resistance:
[formel-leistungvon-r-260602-kn, 1, en_US]
Example
Ι
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)
[beispiel-rmax-20061211, 1, en_US]
[beispiel-rmin-20061211, 1, en_US]
[beispiel-rmittelwert-20061211, 1, en_US]
The closest standard value 200 kΩ is selected; the following applies for the power:
[beispiel-leistungvonr-20061211, 1, en_US]
Hardware Modifications
Disassembly
Work on the Printed Circuit Boards
i
i
NOTE
Before carrying out the following steps, make sure that the device is not operative.
i
i
NOTE
Apart from the communication modules and the fuse, there are no further components that can be config-
ured or operated by the user inside the device. Any service activities exceeding the installation or exchange
of communication modules must only be carried out by Siemens personnel
Additionally, the following tools are required:
3.1.2
3.1.2.1
Mounting and Commissioning
3.1 Mounting and Connections
SIPROTEC 4, 7SD80, Manual 209
E50417-G1100-C474-A2, Edition 02.2018