ABB REJ603 Product Manual page 14

Self-powered feeder protection
REJ603
Product version: 3.0
Table 24. Very high-set phase overcurrent protection, stage I>>> / 50-2
Parameter
Setting range of pick-up current 'I >>>'
Operation accuracy
1)
Operation mode
Operate time delay (DMT) 't >>>'
Operation time accuracy
1)
Reset ratio
1) Operation time accuracy for protection functions when relay is in energised condition.
Table 25. Low-set earth-fault protection, stage I0> / 51N
Parameter
Setting range of pick-up current 'I0 >'
Operation accuracy
1)
Operate time delay (DMT) 't0 >'
Operation time accuracy
1)
Operating curve type
Time multiplier setting 'k0'
Operation time accuracy
1)
IEC, ANSI, HR, FR characteristics

RI characteristics

IEC, ANSI, HR, FR characteristics


RI characteristics
Reset ratio
1) Operation time accuracy for protection functions when relay is in energised condition.
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Value (Range)
0.2...32.0 x In in steps 0.001, infinite for CT variant
± 3.0% x In for value < 1.2 In , ± 3.0% x I for value ≥ 1.2 In
Definite time, Instantaneous
0.04...64 s in steps of 0.01
± 2.0% of set value or ± 30 ms
0.98
Value (Range)
External earth measurement (through CBCT or residual connection) :
0.01...2.0 x In in steps 0.01, infinite
Internal earth measurement : 0.1...2.0 x In in steps 0.01, infinite
External earth measurement : ± 3.0% x In for value < 1.2 In ,
± 3.0% x I for value ≥ 1.2 In
Internal earth measurement : ± 9.0% x In for value < 1.2 In ,
± 9.0% x I for value ≥ 1.2 In
0.04...64 s in steps of 0.01
External earth measurement : ± 2.0% of set value or ± 30 ms
Internal earth measurement : ± 10.0% of set value or ± 30 ms
IEC 60255-151:
Normal inverse, Very inverse, Extremely inverse, Long-time inverse
ANSI C37.112:
Moderate inverse, Normal Inverse, Very inverse, Extremely inverse
Special curves:
RI inverse, HR fuse, FR fuse
0.02...1.6, in steps of 0.01
External earth measurement : class E(5) or ± 30 ms
External earth measurement : class E(7.5) or ± 30 ms
Internal earth measurement : ± 5.0% of set value or ± 30 ms
Internal earth measurement : ± 10.0% of set value or ± 30 ms
IDMT : 0.96 and DT : 0.98
1MDB07217-YN
Issued: 2017-011-21
Revision: E
ABB