St artMode
St artMode
1
1
LatchedStart
FollowSt art
FollowSt art&Mode
OR
OR
30ms
30ms
t
t1
t
t1
currPh1Check
CB Position Check
int startA
OR
OR
OR
OR
OR
OR
t
t1
t
t1
tPulse
tPulse
tPulse
tPulse
TRRETA
TRRETB
TRRETC
TRRET
From ot her
phases
int retrip
RetripMode
RetripMode
1
1
Off
UseFunctionMode
Always
AND
OR
AND
AND
AND
AND
OR
ANSI 18001008-1-en.vsdx
ANSI18001008 V1 EN-US
Figure 280: Simplified re-trip logic
St artMode
St artMode
1
1
LatchedStart
FollowStart
FollowStart&Mode
OR
OR
30ms
30ms
t
t2
t
t2
currCheck
CB Position Check
int startA
OR
OR
OR
OR
OR
OR
tPulse
tPulse
OR
OR
backupTripA
backupTripB
TRBU
t
t2MPh
t
t2MPh
int startB
int startC
t
tCBAlarm
t
tCBAlarm
CBFLT
CBALARM
backupTripC
t
t3
t
t3
OR
OR
tPulse
tPulse
TRBU2
From
ot her
phases
2 of 3
AND
AND
AND
AND
OR
OR
ANSI 18001009-1-en.vsdx
ANSI18001009 V1 EN-US
Figure 281: Simplified backup trip logic
Section 8
1MRK 502 066-UUS B
Current protection
532
Technical manual
Summary of Contents for Relion 670 series
Page 1: ... RELION 670 SERIES Generator protection REG670 Version 2 1 ANSI Technical manual ...
Page 2: ......
Page 48: ...42 ...
Page 62: ...56 ...
Page 182: ...176 ...
Page 692: ...686 ...
Page 726: ...720 ...
Page 1014: ...1008 ...
Page 1242: ...1236 ...
Page 1362: ...1356 ...
Page 1386: ...1380 ...
Page 1422: ...1416 ...
Page 1431: ...1425 ...