Siemens siprotec 7SA522, User Manual

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SIPROTEC
®
4 Devices
4-27
7SA522 Manual
C53000-G1176-C119-2
4.11 Setting Groups
A SIPROTEC
®
4 device has up to four setting groups A through D. The setting options
for each group are the same; however, the applied settings can be, and are typically
intended to be, different in each group. The active setting group can easily be changed
while the device is in-service. A major advantage of multiple setting groups is the ca-
pability of optimizing the protection and control for the existing configuration of the net-
work being protected. In other words, the protection and control can be changed as
the network changes.
The setting groups are saved in the device. The setting groups can be changed during
operation using DIGSI
®
4, from the operator control panel on the device, by triggering
binary inputs, or via the system interface.
k4114.gif
Figure 4-22 DIGSI
®
4, Entering Settings in Setting Group A; Other Groups are Similar
Note:
Settings that are common to all protective functions, such as Device Configuration
and Power System Data 1, cannot be dynamically changed like the settings in Groups
A through D.