Siemens siprotec 7SD5

4 Technical Data
540
7SD5 Manual
C53000-G1176-C169-1
4.7 Teleprotection for Distance Protection (optional)
Mode
Underreach Transfer Trip Schemes
Comparison 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 overreach-
ing zone Z1B)
Dir. Comp. Pickup
Unblocking (with overreaching zone Z1B)
Blocking (with overreaching zone Z1B)
Pilot wire comp.
Rev. Interlock
Send signal prolongation 0.00 s to 30.00 s Increments 0.01 s
Enable delay 0 s to 30.000 s Increments 0.001 s
Transient blocking time 0.00 s to 30.00 s Increments 0.01 s
Wait time for transient blocking 0.00 s to 30.00 s; ∞ Increments 0.01 s
Echo delay time 0.00 s to 30.00 s Increments 0.01 s
Echo impulse duration 0.00 to 30.00 s Increments 0.01 s
Time expiry tolerances 1 % of setting value or 10 ms
The set time is a pure delay time.
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