ABB RELION 670 Series Technical Manual page 522

Generator protection
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Section 8
Current protection
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 271: Simplified logical diagram of the sensitive ground fault current protection
8.6.8
Technical data
Table 249: SDEPSDE (67N) technical data
Function
Trip level for 3I
directional residual
overcurrent
Trip level for 3I0·3V
directional residual power
Trip level for 3I
residual overcurrent
Trip level for non-
directional overcurrent
Table continues on next page
516
AND
AND
OR
AND
OR
AND
AND
Range or value
·cosj
(0.25-200.00)% of
0
(0.25-200.00)% of
·cosj
0
and j
(0.25-200.00)% of
0
(1.00-400.00)% of
0 - t
0
0 - t
0
AND
t
SN
TimeChar = InvTime
TimeChar = DefTime
lBase
SBase
lBase
lBase
1MRK 502 066-UUS B
PUNDIN
TRNDIN
PUDIRIN
TRDIRIN
AND
AND
PUFW
PUREV
en06000653_ansi.vsd
SEMOD173352-1 v1
SEMOD173350-2 v13
Accuracy
±1.0% of I
at I £ I
n
n
±1.0% of I at I > I
n
±1.0% of S
at S £ S
n
n
±1.0% of S at S > S
n
±1.0% of I
at £ I
n
n
±1.0% of I at I > I
n
±1.0% of I
at I £ I
n
n
±1.0% of I at I > I
n
Technical manual
PUVN
TRVN

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