Technical Data
4.4 Inrush Restraint
SIPROTEC, 7SJ61, Manual
C53000-G1140-C210-1, Release date 02.2008
331
4.4 Inrush Restraint
Controlled Functions
Setting Ranges / Increments
Functional Limits
Crossblock
Time Overcurrent Elements 50-1, 50N-1, 51, 51N
Stabilization factor I
2f
/I 10 % to 45 % Increments 1 %
Lower Function Limit Phases for I
Nom
= 1 A at least one phase current (50 Hz and 100 Hz) ≥ 25 mA
for I
Nom
= 5 A at least one phase current (50 Hz and 100 Hz) ≥ 125 mA
Lower Function Limit ground for I
Nom
= 1 A Ground current (50 Hz and 100 Hz) ≥ 25 mA
for I
Nom
= 5 A Ground current (50 Hz and 100 Hz) ≥ 125 mA
Upper Function Limit, configurable for I
Nom
= 1 A 0.30 A to 25.00 A (increments 0.01 A)
for I
Nom
= 5 A 1.50 A to 125.00 A (increments 0.01 A)
Crossblock I
A
, I
B
, I
C
ON/OFF
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