ABB RES670 Technical Manual page 385

1MRK 511 408-UUS A
Phasor measurement unit RES670 2.2 ANSI
Technical manual
Fuse failure detection
Main logic
TEST
TEST ACTIVE
AND
BlocFuse = Yes
BLOCK
BLKTRIP 20 ms
AND
t
All VL < VSealInPU
SealIn = Enabled
Any VL < VSealInPU
FuseFailDetDUDI
AND
OpDVDI = Enabled
FuseFailDetZeroSeq
AND
AND
FuseFailDetNegSeq
AND
V2I2
V0I0
V0I0 OR V2I2
OpModeSel
V0I0 AND V2I2
OptimZsNs
CurrZeroSeq
a
a>b
CurrNegSeq
b
200 ms
DeadLineDet1Ph
MCBOP
60 s
t
All VL > VSealInPU
VoltZeroSeq
OR
VoltNegSeq
AllCurrLow
52a
89b
ANSI10000033 V3 EN-US
Secondary system supervision
OR
100 ms
t
FusefailStarted
OR
AND
AND
5 s
OR
t
OR
OR
AND
AND
AND
t
150 ms
t
OR
AND
5 s
t
Section 13
intBlock
AND
AND
OR
AND
OR
AND
OR
ANSI10000033-3-en.vsd
3PH
BLKZ
BLKV
379