Distance Protection Teleprotection Schemes - Siemens siprotec 7SA6 User Manual

10.4

Distance Protection Teleprotection Schemes

Mode
Underreach
Schemes
Overreach
schemes
7SA6 Manual
C53000-G1176-C133-1
For two line ends
For three line ends
Method
Send signal prolongation
Methods
Send signal prolongation
Release signal prolongation
Transient blocking time
Waiting time for transient blocking
Echo delay time
Echo impulse duration
Time expiry tolerances
The set times are pure delay times.
with one channel for each direction or
with three channels for each direction
(for phase segregated transmission)
with one channel for each direction and
opposite line end
Permissive Underreach Transfer Trip
(PUTT) (with overreaching zone Z1B)
PUTT (Pickup)
Direct transfer trip
0.00 s to 30.00 s
Permissive Overreach Transfer Trip
(POTT) (with overreaching zone Z1B)
Dir. Comp. Pickup
Unblocking (with overreaching zone Z1B)
Blocking (with overreaching zone Z1B)
Pilot wire comp.
Rev. Interlock
0.00 s to 30.00 s
0.000 s to 30.000 s
0.00 s to 30.00 s
0.00 s to 30.00 s; ∞
0.00 s to 30.00 s
0.00 s to 30.00 s
1 % of set value or 10 ms
Technical Data
(steps 0.00 s)
(steps 0.01 s)
(steps 0.001 s)
(steps 0.01 s)
(steps 0.01 s)
(steps 0.01 s)
(steps 0.01 s)
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