Table of Contents
Advertisement
2.7.1.8 Information List
No.
Information
ϕ(PQ Pos. Seq.)
130
ϕ(PQ Pos) block
131
ϕ Set wrong
132
161
Fail I Superv.
Failure Σ I
162
163
Fail I balance
164
Fail U Superv.
Fail Σ U Ph-E
165
167
Fail U balance
168
Fail U absent
169
VT FuseFail>10s
170
VT FuseFail
171
Fail Ph. Seq.
195
Fail Conductor
196
Fuse Fail M.OFF
197
MeasSup OFF
2.7.2
Trip circuit supervision
2.7.2.1 Functional Description
Trip Circuit Monitoring
The 7VK61 incorporates an integrated trip circuit supervision function. Here it can be chosen between the mon-
itoring with one or two binary inputs. If the routing of the required binary inputs does not comply with the select-
ed monitoring mode, an alarm is issued ("TripC 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 single-
pole tripping is possible, a separate trip circuit supervision can be implemented for each circuit breaker pole
provided the required binary inputs are available.
These which for the two binary inputs use binary inputs must have no common potencial. Therefore, it must be
ensured the use of external measures for the galvanic separation.
Supervision with Two Binary Inputs
When using two binary inputs, these are connected according to Figure 2-53, 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 monitoring is that the control voltage for the circuit breaker is higher
than the total of the minimum voltages drops at the two binary inputs (U
needed for each binary input, the monitoring function can only be used with a system control voltage of over
38 V.
SIPROTEC, 7VK61, Manual
C53000-G1176-C159-3, Release date 05.2009
Type of In-
formation
OUT
Load angle Phi(PQ Positive sequence)
OUT
Load angle Phi(PQ) blocked
OUT
Setting error: |PhiA - PhiB| < 3°
OUT
Failure: General Current Supervision
OUT
Failure: Current Summation
OUT
Failure: Current Balance
OUT
Failure: General Voltage Supervision
OUT
Failure: Voltage summation Phase-Earth
OUT
Failure: Voltage Balance
OUT
Failure: Voltage absent
OUT
VT Fuse Failure (alarm >10s)
OUT
VT Fuse Failure (alarm instantaneous)
OUT
Failure: Phase Sequence
OUT
Failure: Broken Conductor
OUT
Fuse Fail Monitor is switched OFF
OUT
Measurement Supervision is switched OFF
2.7 Monitoring Function
Comments
> 2·U
). Since at least 19 V are
Ctrl
BImin
Functions
145
Advertisement
Table of Contents
