Inrush Current Restraint Breaker Intertrip And Remote Tripping - Siemens SIPROTEC 4 7SD80 Manual

Technical Data

4.8 Inrush Current Restraint Breaker Intertrip and Remote Tripping

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