Functions
2.1 General
SIPROTEC, 7SD610, Manual
C53000-G1176-C145-6, Release date 02.2011
40
2.1.3 Change Group
2.1.3.1 Purpose of the Setting Groups
Up to four different setting groups can be created for establishing the device's function settings. During opera-
tion, the user can locally switch between setting groups using the operator panel, binary inputs (if so config-
ured), the operator and service interface from a personal computer or via the system interface. For reasons of
safety, it is not possible to change between setting groups during a power system fault.
A setting group includes the setting values for all functions that have been selected as Enabled during con-
figuration (see Section 2.1.1.2). In 7SD610 devices, four independent setting groups (A to D) are available.
Whereas setting values and options may vary, the selected scope of functions is the same for all groups.
Setting groups enable the user to save the corresponding settings for each application. When they are needed,
settings may be loaded quickly. All setting groups are stored in the relay. Only one setting group may be active
at a given time.
220 I4 transformer Not connected
In prot. line
IY starpoint
In prot. line I4 current transformer is
221 I4/Iph CT 0.010 .. 5.000 1.000 Matching ratio I4/Iph for CT's
230 Rated Frequency 50 Hz
60 Hz
50 Hz Rated Frequency
236 Distance Unit km
Miles
km Distance measurement unit
240A TMin TRIP CMD 0.02 .. 30.00 sec 0.10 sec Minimum TRIP Command Dura-
tion
241A TMax CLOSE CMD 0.01 .. 30.00 sec 1.00 sec Maximum Close Command Dura-
tion
242 T-CBtest-dead 0.00 .. 30.00 sec 0.10 sec Dead Time for CB test-autoreclo-
sure
251 K_ALF/K_ALF_N 1.00 .. 10.00 1.00 k_alf/k_alf nominal
253 E% ALF/ALF_N 0.5 .. 50.0 % 5.0 % CT Error in % at k_alf/k_alf
nominal
254 E% K_ALF_N 0.5 .. 50.0 % 15.0 % CT Error in % at k_alf nominal
Addr. Parameter Setting Options Default Setting Comments
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