Siemens SIPROTEC 7SD600 System Manual page 104

Numerical line differential protection SIPROTEC 7SD600 V3.0
Y Y
2
Y
0 m s
B B
Y Y
0 m s
Y
D e v . A c t .
B B
General fault events of the device
E v t l o s t
S y s. d i s t.
D i s t
D e v . A c t .
D e v . T R I P
I 1 =
Fault events of the Line differential protection
D E L A Y . S t
D I F . G A
B . D I F S
B . D I F H
D I F T R I P
Siemens AG January 1999
Operating instructions
System manual Order no. E50417-G1176-C069-A1
1st line Fault number
2nd line: Start of the relative time
Start of relative time
Event that started the relative time
Event lost
System disturbance
Disturbance
Device general fault detection
Device general trip
Switched off current station 1 (I/I
Delay for tripping the DIFF protection
function started
DIFF protection general fault detection
Pickup of the saturation detector during
high current, external short-circuit
Blocking by harmonics on detecting a 2nd harmonic in
the differential current
Tripping by differential protection function
6
(K)
(K)
(K)
(K/G)
(K)
) (K)
N
(K/G)
(K/G)
(K/G)
(K/G)
(K)
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