Inrush Restraint - Siemens SIPROTEC 7SK80 Manual

4.5

Inrush Restraint

Controlled Functions
Overcurrent elements
Setting Ranges / Increments
Stabilization factor I
Functional Limits
Lower function limit phases
Lower function limit ground
Upper function limit, configurable
Cross-blocking
Cross-blocking I
SIPROTEC, 7SK80, Manual
E50417-G1140-C344-A4, Release date 08.2010
/I
2f
for I
Nom
for I
Nom
for I
Nom
for I
Nom
for I
Nom
for I
Nom
, I , I
A B C
50-1, 50N-1, 51, 51N, 67-1, 67N-1
10 % to 45 %
= 1 A at least one phase current
(50 Hz and 100 Hz) ≥ 50 mA
= 5 A at least one phase current
(50 Hz and 100 Hz) ≥ 125 mA
= 1 A Ground current
(50 Hz and 100 Hz) ≥ 50 mA
= 5 A Ground current
(50 Hz and 100 Hz) ≥ 125 mA
= 1 A 0.30 A to 25.00 A
= 5 A 1.50 A to 125.00 A
ON/OFF
Technical Data
4.5 Inrush Restraint
Increments 1 %
Increments 0.01 A
Increments 0.01 A
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