Siemens siprotec 7SA522 - Distance Protection Teleprotection Schemes

Technical Data
10-137SA522 Manual
C53000-G1176-C119-2
10.4 Distance Protection Teleprotection Schemes
Mode 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 and
oposite line end
Underreach
schemes
Method Permissive Underreach Transfer Trip
(PUTT) (with overreaching zone Z1B)
Send signal prolongation 0.00 s to 30.00 s (steps 0.01 s)
Overreach
schemes
Methods Permissive Overreach Transfer Trip
(POTT) (with overreaching zone Z1B)
Unblocking (with overreaching zone Z1B)
Blocking (with overreaching zone Z1B)
Send signal prolongation 0.00 s to 30.00 s (steps 0.01 s)
Release signal prolongation 0.000 s to 30.000 s (steps 0.001 s)
Transient blocking time 0.00 s to 30.00 s (steps 0.01 s)
Waiting time for transient blocking 0.00 s to 30.00 s; ∞ (steps 0.01 s)
Echo delay time 0.00 s to 30.00 s (steps 0.01 s)
Echo impulse duration 0.00 s to 30.00 s (steps 0.01 s)
Time expiry tolerances 1 % of set value or 10 ms
The set times are pure delay times.