ABB Relion 650 Series Technical Manual page 197

1MRK 506 326-UUS B
INNonDirPU
UN_PU
OpMODE=INcosPhi
Pickup_N
INCosPhiPU
OpMODE=INVNCosPhi
INVNCosPhiPU
Phi in RCA +- ROA
OpMODE=IN and Phi
DirMode = Forw
Forw
DirMode = Rev
Rev
ANSI06000653 V1 EN-US
Figure 101: Simplified logical diagram of the sensitive ground-fault current protection
Line distance protection REL650
Technical manual
AND
AND OR
AND
OR
AND
AND
© Copyright 2011 ABB Power Grids. All rights reserved
0 - t
0
0 - t
0
AND
t
SN
TimeChar = InvTime
AND
TimeChar = DefTime
Section 6
Current protection
PUNDIN
TRNDIN
PUVN
TRVN
PUDIRIN
TRDIRIN
AND
PUFW
PUREV
en06000653_ansi.vsd
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