26
Low-set overcurrent stage I>
Start current
- definite time characteristic
0.5...5.0 x I
n
- inverse time characteristic
0.5…2.5 x I
n
Start time, typ.
50 ms
Operation characteristic
- definite time characteristic
- operate time
0.05...300 s
- Inverse time characteristic acc. to
BS 142 and IEC 60255-3
Extremely inverse
Very inverse
Normal inverse
Long-time inverse
- special characteristic acc. to ABB standards
RI-type inverse
RXIDG-type inverse
- time multiplier k
0.05...1.00
Reset time, typ.
40 ms
Retardation time
<30 ms
Drop-off/pick-up ratio, typ.
0.96
Operate time accuracy at definite time
operation characteristic
±
2 % of set value or
±
25 ms
Operate time accuracy class E at inverse
time characteristic
5
Operation accuracy
±
3% of set value
High-set overcurrent stage I>>
Start current I>>
0.5...40.0 x I
n
or
∞
, infinite
Start time, typ.
40 ms
Operate time
0.04...300 s
Reset time, typ.
40 ms
Retardation time
<30 ms
Drop-off/pick-up ratio, typ.
0.98
Operate time accuracy
±
2% of set value or
±
25 ms
Operation accuracy
±
3% of set value
Low-set earth-fault stage I
0
>
Start current I
0
>
0.1…0.8 x I
n
Start time, typ.
60 ms
Operation characteristic
- definite time characteristic
- operate time
0.05...300 s
- Inverse time characteristic acc. to
BS 142 and IEC 60255-3
Extremely inverse
Very inverse
Normal inverse
Long-time inverse
- special characteristic acc. to ABB standards
RI-type inverse
RXIDG-type inverse
- time multiplier k
0
0.05...1.00
Reset time, typ.
40 ms
Retardation time
<30 ms
Drop-off/pick-up ratio, typ.
0.96
Operate time accuracy at definite time
operation characteristic
±
2 % of set value or
±
25 ms
Operate time accuracy class E at inverse
time characteristic
5
Operation accuracy
±
3% of set value
Technical data