Technical Data
4.21 Flexible Protection Functions
SIPROTEC, 7SJ62/64, Manual
C53000-G1140-C207-2, Release date 01.2008
521
4.21
Flexible Protection Functions
Measured Quantities / Operating Modes
Setting Ranges / Increments
Functional Limits
Three-phase
I
,
I
N
,
I
Ns
, 3
I
0
,
I
1,
I
2,
I
2/
I
1, V, V
N
, 3V
0
, V1, V2, P, Q, cos
ϕ
Single-phase
I
,
I
N
,
I
Ns
, V, V
N
, P, Q, cos
ϕ
Without fixed phase reference
f, df/dt, binary input
Measuring procedure for
I
, V
Fundamental wave<,
True RMS value,
Positive sequence system,
Negative sequence system
Pickup on
Exceeding threshold or
falling below threshold
Pickup tresholds:
Current
I
,
I
1
,
I
2
, 3
I
0
,
I
N
for
I
Nom
= 1 A
0.05 to 35.00 A
Increment 0.01 A
for
I
Nom
= 5 A
0.25 to 175.00 A
Ratio
I
2
/
I
1
15% to 100%
Increments 1%
Sensitive ground current
I
NN
0.001 to 1.500 A
Increment 0.001 A
Voltage V, V
1
, V
2
, 3V
0
2.0 to 260.0 V
Increments 0.1V
Displacement voltage V
N
2.0 to 200.0 V
Increments 0.1V
Power P, Q
for
I
Nom
= 1 A
0.5 to 10000 W
Increment 0.1 W
for
I
Nom
= 5 A
2.5 to 50000 W
Power factor cos
ϕ
-0.99 to +0.99
Increment 0.01
Frequency
for f
Nom
= 50 Hz
für f
Nom
= 60 Hz
40.0 to 60.0 Hz
50.0 to 70.0 Hz
Increments 0.01 Hz
Increments 0.01 Hz
Frequency change df/dt
0.10 to 20.00 Hz/s
Increments 0.01 Hz/s
Dropout ratio > element
1.01 to 3.00
Increment 0.01
Dropout ratio < element
0.70 to 0.99
Increment 0.01
Dropout difference
0.02 to 1.00 Hz
Increments 0.01 Hz
Pickup delay (standard)
0.00 to 60.00 s
Increments 0.01 s
Pickup delay for
I
2
/
I
1
0.00 to 28800.00 s
Increments 0.01 s
Command delay time
0.00 to 3600.00 s
Increments 0.01 s
Dropout delay
0.00 to 60.00 s
Increments 0.01 s
Power measurement 3-phase
for
I
Nom
= 1 A
With current system > 0.03 A
for
I
Nom
= 5 A
With current system > 0.15 A
Power measurement 1-phase
for
I
Nom
= 1 A
Phase current > 0.03 A
for
I
Nom
= 5 A
Phase current > 0.15 A
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