Group Alarms; Applying The Function Parameter Settings - Siemens SIPROTEC 7SA6 Manual

Distance protection relay for all voltage levels
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Functions

6.21.1.6 Group Alarms

6.21.2 Applying the Function Parameter Settings

6-286
Certain messages of the monitoring functions are already combined to group alarms.
Table 6-14 shows an overview of these group alarms an their composition.
Table 6-14
Group alarms
Group alarms
FNo
Designation
161
Fail I Superv.
164
Fail U Superv.
160
Alarm Sum Event
140
Error Sum Alarm
1
) depending on the version (number of printed circuit boards)
The sensitivity of the measured value monitoring can be changed. In the factory, pre-
settings based on experience have already been applied, which should be sufficient
for most applications. If particularly high operational asymmetries of the currents and/
or voltages are expected, or if one or more monitoring functions pick up sporadically
during normal operation, the sensitivity setting(s) should be reduced.
In address 2901 MEASURE. SUPERV the measured value monitoring can be switched
ON or OFF .
Composed of
FNo
Meaning
Fail ΣI
162
163
Fail I balance
Fail ΣUphe
165
167
Fail U balance
168
Fail U absent
Fail ΣI
162
163
Fail I balance
Fail ΣUphe
165
167
Fail U balance
168
Fail U absent
169
VT Fuse fail > 10 s
170
VT FuseFail
361
>Fail:Feeder VT
171
Fail Ph.Seq.
177
Fail battery
193
Alarm NO calibr
3464
Topol complete, negated
183
Error Board 1
1
184
Error Board 2
)
1
185
Error Board 3
)
1
186
Error Board 4
)
1
187
Error Board 5
)
1
188
Error Board 6
)
1
189
Error Board 7
)
144
Error 5V
168
Fail U absent
192
Error 1A/5A wrong
194
Error neutral
181
Error A/D-conv.
C53000-G1176-C156-2
7SA6 Manual

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