Flexible Protection Functions - Siemens SIPROTEC 7SJ61 Manual

4.17

Flexible Protection Functions

Measured Quantities / Modes of Operation
Three-phase
Single-phase
Without fixed phase reference
Measuring procedure for I
Pickup on
Setting Ranges / Increments
Pickup thresholds:
Current I, I , I
1
Relationship I
Sensitive ground currentI
Pickup delay (standard)
Pickup delay for I
Command delay time
Dropout delay
Times
Pickup times:
Current (phase quantities)
for 2 x setting value
for 10 x setting value
Current (symmetrical components)
for 2 x setting value
for 10 x setting value
Binary Input
Dropout times:
Current (phase quantities)
Current (symmetrical components)
Binary Input
SIPROTEC, 7SJ61, Manual
C53000-G1140-C210-1, Release date 02.2008
, 3I , I for I
2 0 N Nom
for I
Nom
/I
2 1
GG
/I
2 1
I, I , I , 3I
N Ns
, I
I, I
N Ns
Binary Input
Fundamental Harmonic
True RMS (Effective Value)
Positive Sequence System,
Negative Sequence System,
Exceeding threshold or
falling below threshold
= 1 A 0.05 to 35.00 A
= 5 A 0.25 to 175.00 A
15% to 100%
0.001 to 1.500 A
0.00 to 60.00 s
0.00 to 28800.00 s
0.00 to 3600.00 s
0.00 to 60.00 s
Approx. 30 ms
Approx. 20 ms
Approx. 40 ms
Approx. 30 ms
Approx. 20 ms
< 20 ms
< 30 ms
< 10 ms
Technical Data
4.17 Flexible Protection Functions
, I , I
0 1 2
Increments 0.01 A
Increments 1%
Increments 0.001 A
Increments 0.01 s
Increments 0.01 s
Increments 0.01 s
Increments 0.01 s
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