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S
R
SR
Q
OR
AND
AND
30 ms
OR
BackupTrip A
BFP Started A
Reset A
BLOCK
Retrip Time Out A
ANSI09000976-3-en.vsd
Time out A
BFI_3P
BFI_A
0
150ms
ANSI09000976 V3 EN
Figure 116:
Simplified logic scheme of the CCRBRF (50BF) starting logic
AND
AND
AND
AND
AND
OR
OR
OR
a
b
a>b
AND
a
b
a>b
Pickup_BlKCont
AND
Time out A
BFP Started A
Reset A
52a_A
Current High A
Contact Closed A
ANSI09000977-2-en.vsd
FunctionMode
OR
OR
Current
Contact
Current and Contact
1
Pickup_PH
CB Closed A
I_A
ANSI09000977 V2 EN
Figure 117:
Simplified logic scheme of the CCRBRF (50BF), CB position evaluation
200 ms
AND
AND
OR
OR
OR
TRRET_C
TRRET_B
BFP Started A
Retrip Time Out A
CB Closed A
TRRET
CB Pos Check
No CBPos Check
OR
From other
phases
ANSI16000502-1-en.vsd
RetripMode
1
30 ms
0
0-t1
ANSI16000502 V1 EN
Figure 118:
Simplified logic scheme of the retrip logic function
Section 7
1MRK 506 335-UUS A
Current protection
260
Technical manual
Summary of Contents for REL650 series
Page 1: ...Relion 650 series Line distance protection REL650 ANSI Technical manual ...
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