Technical Data - ABB Relion Technical Manual

Section 8
Current protection
8.9.8
272
PU_ST1
OR
PU_ST2
TRST1
TRST2 OR
ANSI09000690 V3 EN
Figure 124: Simplified logic diagram for the PICKUP, ALARM and TRIP signals for
NS2PTOC (46I2)

Technical data

Table 146: NS2PTOC (46I2) technical data
Function
Operate value, step 1 and
2, negative sequence
overcurrent
Reset ratio, step 1 and 2
Operate time, pickup
Reset time, pickup
Time characteristics
Inverse time characteristic
2
=
I t K
step 1,
2
Reset time, inverse
characteristic step 1,
2
=
I t K
2
Maximum trip delay, step
1 IDMT
Minimum trip delay, step 1
IDMT
Timers
Range or value
IBase
(3-500)% of
>95%
30 ms typically at 0 to 2 x I
set
20 ms typically at 0 to 10 x I
set
40 ms typically at 2 to 0 x I
set
Definite or Inverse
K=1.0-99.0
K=0.01-20.00
(0.00-6000.00) s
(0.000-60.000) s
(0.00-6000.00) s
1MRK 502 048-UUS A
ALARM
0-tAlarm
0
ANSI09000690-3-en.vsd
Accuracy
± 1.0% of I at I < I
n n
± 1.0% of I at I > I
n
-
-
-
-
± 3% or ± 40 ms
1 ≤ K ≤ 20
± 10% or ± 50 ms
1 ≤ K ≤ 20
± 0.5% ± 25 ms
± 0.5% ± 25 ms
± 0.5% ± 25 ms
Technical manual
TRIP