Siemens SIPROTEC 7SD80 - Inrush Current Restraint Breaker Intertrip and Remote Tripping

Technical Data
4.8 Inrush Current Restraint Breaker Intertrip and Remote Tripping
SIPROTEC, 7SD80, Manual
E50417-G1140-C474-A1, Release date 09.2011
309
4.8 Inrush Current Restraint Breaker Intertrip and Remote Tripping
Phase Comparison Protection
Restricted Earth Fault Protection
Restraint ratio
2. Inrush stabilization I
2fN
/I
fN
0 % to 45 % Increments 1 %
Max. current for restraint I
Nom
= 1 A 1.1 A to 25.0 A Increments 0.1 A
I
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
Restraint ratio
2. Inrush stabilization I
2fN
/I
fN
0 % to 45 % Increments 1 %
Max. current for restraint I
Nom
= 1 A 1.1 A to 25.0 A Increments 0.1 A
I
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