No.
Information
Type of
Informa-
tion
Comments
196
Fuse Fail M.OFF
OUT
Fuse Fail Monitor is switched OFF
197
MeasSup OFF
OUT
Measurement Supervision is switched OFF
289
Failure Σi
OUT
Alarm: Current summation supervision
290
Broken Iwire L1
OUT
Alarm: Broken current-wire detected L1
291
Broken Iwire L2
OUT
Alarm: Broken current-wire detected L2
292
Broken Iwire L3
OUT
Alarm: Broken current-wire detected L3
295
Broken wire OFF
OUT
Broken wire supervision is switched OFF
296
Σi superv. OFF
OUT
Current summation superv is switched OFF
297
ext.Brk.Wire ØA
OUT
Broken current-wire at other end ØA
298
ext.Brk.Wire ØB
OUT
Broken current-wire at other end ØB
299
ext.Brk.Wire ØC
OUT
Broken current-wire at other end ØC
3270
>RESET BW
SP
>RESET broken wire monitoring
3271
Broken Iwire a
IntSP
Alarm: Broken current-wire detected A
3272
Broken Iwire b
IntSP
Alarm: Broken current-wire detected B
3273
Broken Iwire c
IntSP
Alarm: Broken current-wire detected C
74TC Trip Circuit Supervision
The 7SD80 line protection is equipped with an integrated trip circuit supervision function. Depending on the
number of available binary inputs (not connected to a common potential), supervision with one or two binary
inputs can be selected. If the routing of the binary inputs required for this does not comply with the selected
monitoring mode, an alarm is given (“TripC1 ProgFAIL ...”, with identification of the non-compliant circuit).
When using two binary inputs, malfunctions in the trip circuit can be detected under all circuit-breaker condi-
tions. When only one binary input is used, malfunctions in the circuit breaker itself cannot be detected. If
singlepole tripping is possible, a separate trip circuit supervision can be implemented for each circuit-breaker
pole provided the required binary inputs are available.
Functional Description
Monitoring with Two Binary Inputs
When using two binary inputs, these are connected according to
, parallel to the associated trip
contact on one side, and parallel to the circuit-breaker auxiliary contacts on the other.
A precondition for the use of the trip circuit supervision is that the control voltage for the circuit breaker is
higher than the total of the minimum voltages drops at the two binary inputs (V
Ctrl
> 2·V
BImin
). Since at least 19
V are needed at each binary input, the supervision can only be used with a system control voltage higher than
38 V.
2.14.2
2.14.2.1
Functions
2.14 Monitoring Functions
162
SIPROTEC 4, 7SD80, Manual
E50417-G1100-C474-A2, Edition 02.2018
Содержание SIPROTEC 4 7SD80
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