Siemens siprotec 7SA522 User Manual

4.6 Teleprotection for Earth Fault Overcurrent Protection (optional)
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7SA522 Manual
C53000-G1176-C155-3
4.6 Teleprotection for Earth Fault Overcurrent Protection
(optional)
Mode
Comparison Schemes
Comparison Schemes via Protection Data Interface (optional)
For two line ends One channel for each direction or three channels each direc-
tion for phase-segregated transmission
For three line ends With one channel for each direction or connection
Method Dir. comp. pickup
Directional unblocking scheme
Directional blocking scheme
Send signal prolongation 0.00 s to 30.00 s Increments 0.01 s
Enable 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
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 s to 30.00 s Increments 0.01 s
Time expiry tolerances 1 % of setting value or 10 ms
The set times are pure delay times
Phase-segregated for two or three line ends
Method Dir. comp. pickup
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 s to 30.00 s Increments 0.01 s
Time expiry tolerances 1 % of setting value or 10 ms
The set times are pure delay times

Siemens siprotec 7SA522 Specifications

General

Brand	Siemens
Model	siprotec 7SA522
Category	Protection Device
Language	English