Siemens SIPROTEC 4 7SD80

Inrush Current Restraint Breaker Intertrip and Remote Tripping
Phase Comparison Protection
Restraint ratio
2. Harmonische zur Grundschwingung Ι
2fNom
/Ι
fNom
0 % to 45 % Increments 1 %
Max. current for restraint
Ι
Nom
= 1 A
1.1 A to 25.0 A Increments 0.1 A
Ι
Nom
= 5 A
5.5 A to 125.0 A
Crossblock function can be switched on/off
Max. action time for crossblock CROSSB 2HM 0.00 s to 60.00 s
or 0 (crossblock deactivated)
or ∞ (active until dropout)
Increments 0.01 s
Restricted Earth Fault Protection
Restraint ratio
2. Inrush stabilization Ι
2fNom
/Ι
fNom
0 % to 45 % Increments 1 %
Max. current for restraint
Ι
Nom
= 1 A
1.1 A to 25.0 A Increments 0.1 A
Ι
Nom
= 5 A
5.5 A to 125.0 A
Crossblock function zu- und abschaltbar
Max. action time for crossblock CROSSB 2HM 0.00 s to 60.00 s
or 0 (crossblock deactivated)
or ∞ (active until dropout)
Increments 0.01 s
4.8
Technical Data
4.8 Inrush Current Restraint Breaker Intertrip and Remote Tripping
274 SIPROTEC 4, 7SD80, Manual
E50417-G1100-C474-A2, Edition 02.2018