Technical Data
4.8 Teleprotection for Distance Protection (optional)
SIPROTEC, 7SD5, Manual
C53000-G1176-C169-5, Release date 02.2011
597
4.8 Teleprotection for Distance Protection (optional)
Operating Mode
Underreach scheme
Overreach schemes
For two line ends With one channel for each direction or
with three channels for each direction for phase segregated
transmission
For three line ends With one channel for each direction or connection
Method Transfer trip with overreaching zone Z1B
PUTT (Pickup)
Direct transfer trip
Send signal prolongation 0.00 s to 30.00 s Increments 0.01 s
Method Permissive Overreach Transfer Trip (POTT) (with overreaching
zone Z1B)
Directional comparison
Unblocking (with overreaching zone Z1B)
Blocking (with overreaching zone Z1B)
Pilot wire comparison
Reverse interlock (with pilot wires)
Send signal prolongation 0.00 s to 30.00 s Increments 0.01 s
Release delay 0.000 s to 30.000 s Increments 0.001 s
Transient blocking time 0.00 s to 30.00 s Increments 0.01 s
Waiting time for transient blocking 0.00 s to 30.00 s; ∞ Increments 0.01 s
Expiry tolerances 1 % of set value or 10 ms
The set times are pure delay times
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