Monitoring Functions - Siemens SIPROTEC 7SD610 Manual

4.14

Monitoring Functions

Measured Values
Current sum
- SUM.ILimit
- SUM. I FACTOR
Voltage sum
Current Symmetry
- BAL.FACTOR.I
- BAL.ILIMIT
- T BAL.ILIMIT
Broken wire
Voltage balance
- BAL.FACTOR.U
- BAL.ULIMIT
- T BAL.ULIMIT
Voltage phase sequence
Asymmetrical measuring voltage failure
(Fuse Failure Monitor)
- FFM U>
- FFM I<
Three-phase measuring voltage failure
(Fuse Failure Monitor)
- FFM UMEAS <
- FFM I
delta
- T V SUPERVISION (waiting time for additional
measured voltage failure monitoring)
- T mcb
Trip Circuit Monitoring
Number of supervised trip circuits
Operation of each trip circuit
Pickup and dropout time
Settable delay time for operation with 1 binary input
SIPROTEC, 7SD610, Manual
C53000-G1176-C145-6, Release date 02.2011
I = | I + I
F L1
SUM.I Threshold · I
for I = 1 A 0.10 A to 2.00 A
N
for I = 5 A 0.50 A to 10.00 A
N
0.00 to 0.95
U = | U + U
F L1
| I |/| I
min max
as long as I
0.10 to 0.95
for I = 1 A 0.10 A to 1.00 A
N
for I = 5 A 0.50 A to 5.00 A
N
5 s to 100 s
monitoring of current transformer circuits on current step change
without voltage step change
| U |/| U
min max
as long as | U
0.58 to 0.95
10 V to 100 V
5 s to 100 s
U leads U
L1
as long as | U
3 · U > FFM U> OR 3 · U
0
AND simultaneously
3 · I < FFM I< AND 3 · I
0
10 V to 100 V
for I = 1 A 0.10 A to 1.00 A
N
for I = 5 A 0.50 A to 5.00 A
N
all U < FFM UMEAS <
Ph-E
AND simultaneously
all ΔI < FFM I
Ph
2 V to 100 V
for I = 1 A 0.05 A to 1.00 A
N
for I = 5 A 0.25 A to 5.00 A
N
0.00 s to 30.00 s
0 ms to 30 ms
+ I + k · I | >
L2 L3 I E
+ SUM. IFACTOR ·Σ | I |
N
+ U + k · U | > 25 V
L2 L3 U EN
| < BAL.FACTOR.I
/I > BAL.ILIMIT/I
max N N
| < BAL.FACTOR.U
| > BAL.ULIMIT
max
leads U
L2 L3
|, | U | , | U | > 40 V/v3
L1 L2 L3
> FFM U>
2
< FFM I<
2
delta
1 to 3
With 1 binary input or with 2 binary inputs
Approx. 1 to 2 s
1 s to 30 s
Technical Data
4.14 Monitoring Functions
Increment 0.01 A
Increment 0.01 A
Increment 0.01
Increment 0.01
Increment 0.01 A
Increment 0.01 A
Increments 1 s
Increment 0.01
Increment 1 V
Increments 1 s
Increments 1 V
Increment 0.01 A
Increment 0.01 A
Increments 1 V
Increment 0.01 A
Increment 0.01 A
Increments 0.01 s
Increments 1 ms
Increments 1 s
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