Siemens SIPROTEC 7SJ80 User Manual

Configuring the Reverse Power Protection in DIGSI
First create and open a 7SJ64x (e.g. 7SJ642) device in DIGSI Manager. Configure a flexible protection function
(flexible function 01) for the present example in the Device Configuration.
[funktionsumfang-flexfkn01-030204-he, 1, en_US]
Figure 2-106 Configuration of a flexible protection function
Select “Additional functions” in the „Parameters“ menu to view the flexible function
The parameter selection options for the flexible protection functions primarily depend on the settings made in
the Power System Data 1 for the connection of the voltage and current transformers (Addresses 213 and 251).
[flexfkn-weitere-funktionen-030204-he, 1, en_US]
Figure 2-107 The flexible function appears in the function selection.
First activate the function at “Settings --> General” and select the operating mode “3-phase”
2.19.3
Functions
2.19 Reverse-Power Protection Application with Flexible Protection Function
258 SIPROTEC 4, 7SJ80, Manual
E50417-G1140-C343-A8, Edition 12.2017

Siemens SIPROTEC 7SJ80 Specifications

General

Rated Frequency	50/60 Hz
Rated Current	1 A / 5 A
Operating Temperature	-25°C to +55°C
Storage Temperature	-40°C to +70°C
Current Transformer Inputs	4
Application	Protection of feeders, motors, transformers, and generators
Rated Voltage	100-240 V AC/DC
Communication Protocols	IEC 61850, Modbus, DNP3, IEC 60870-5-103
Display	Graphical LCD
Mounting	Flush mounting
Protection Functions	Overcurrent, Earth fault
Communication Interfaces	Ethernet, RS485
Housing	Plastic
Weight	Approx. 1.5 kg