Instantaneous High-Current Switch-Onto-Fault Protection (Sotf) - Siemens siprotec 7SD5 User Manual

4 Technical Data
4.13

Instantaneous High-Current Switch-onto-Fault Protection (SOTF)

Pickup
High current pickup I>>>
High current pickup I>>>>
Dropout to pickup ratio
Pickup tolerance
Times
Shortest trip time
(fast relays/high-speed relays)
554
= 1 A 0,10 A bis 15,00 A oder ∞ (unwirk-
for I
N
sam)
= 5 A 0,50 A bis 75,00 A oder ∞ (unwirk-
for I
N
sam)
= 1 A 1.00 A to 25.00 A or ∞ (disabled)
for I
N
= 5 A 5.00 A to 125.00 A or ∞ (disabled)
for I
N
Approx. 90 %
3 % of setting value or 1 % of I
ca. 10/5 ms
Increments 0.01 A
Increments 0.01 A
N
7SD5 Manual
C53000-G1176-C169-1