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
, 3I
0
, I1, I2, I2/I1, V, V
N
, 3V
0
, V1, V2, P, Q, cosϕ
Single-phase I, I
N
, I
Ns
, V, V
N
, P, Q, cosϕ
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
, 3I
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 cosϕ -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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