Siemens SIPROTEC 4 7SJ61 - Inrush Restraint

Inrush Restraint
Controlled Elements
Time Overcurrent Elements 50-1, 50N-1, 51, 51N, 67-1, 67N-1
Setting Ranges / Increments
Stabilization factor Ι
2f
/Ι
10 % to 45 % Increments 1 %
Functional Limits
Lower Function Limit Phases
for Ι
Nom
= 1 A
at least one phase current (50 Hz and 100 Hz) ≥ 25 mA
for Ι
Nom
= 5 A
at least one phase current (50 Hz and 100 Hz) ≥ 125 mA
Lower Function Limit ground
for Ι
Nom
= 1 A
Ground current (50 Hz and 100 Hz) ≥ 25 mA
for Ι
Nom
= 5 A
Ground current (50 Hz and 100 Hz) ≥ 125 mA
Upper Function Limit,
configurable
for Ι
Nom
= 1 A
0.30 A bis 25.00 A increments 0.01 A
for Ι
Nom
= 5 A
1.50 A bis 125.00 A increments 0.01 A
Crossblock
Crossblock Ι
A
, Ι
B
, Ι
C
ON/OFF
4.4
Technical Data
4.4 Inrush Restraint
302 SIPROTEC 4, 7SJ61, Manual
C53000-G1140-C210-6, Edition 05.2016