ABB Relion 670 series - Page 573

PU_ST1
P I C K
U P
OR
OR
PU_ST2
TRST2
TRST1
ALARM
TRIP
ANSI09000690-3-en.vsd
0
0-tAlarm
ANSI09000690 V3 EN-US
Figure 301: Simplified logic diagram for the PICKUP, ALARM and TRIP signals for NS2PTOC
(46I2)
8.14.8 Technical data
GUID-E5718F80-556D-4852-A8F2-90E0F578D763 v9
Table 304: NS2PTOC (46I2) technical data
Function Range or value Accuracy
Trip current, step 1 - 2 (3-500)% of IBase ±1.0% of I
n
at I ≤ I
n
±1.0% of I at I > I
n
Reset ratio >95% -
Trip time, pickup at 0 to 2 x I
set
Min. = 15 ms
Max. = 30 ms
-
Reset time, pickup at 2 x I
set
to 0 Min. = 15 ms
Max. = 30 ms
-
Trip time, pickup at 0 to 10 x I
set
Min. = 5 ms
Max. = 20 ms
-
Reset time, pickup at 10 x I
set
to 0 Min. = 20 ms
Max. = 35 ms
-
Time characteristics Definite or Inverse -
Inverse time characteristic, step 1 -
2
2
2
I t K=
K=1.0-99.0 ±2.0% or ±40 ms whichever is greater
Reset time, inverse characteristic,
step 1 - 2
2
2
I t K=
Reset Multiplier = 0.01-20.00 ±5.0% or ±40 ms whichever is greater
Minimum trip time for inverse
time characteristic, step 1 - 2
(0.000-60.000) s ±0.2% or ±35 ms whichever is greater
Maximum trip delay at 0.5 x I
set
to
2 x I
set
, step 1 - 2
(0.00-6000.00) s ±0.2% or ±35 ms whichever is greater
Independent time delay at 0.5 x
I
set
to 2 x I
set
, step 1 - 2
(0.00-6000.00) s ±0.2% or ±35 ms whichever is greater
Independent time delay for Alarm
at 0.5 x I
set
to 2 x I
set
(0.00-6000.00) s ±0.2% or ±35 ms whichever is greater
1MRK 502 066-UUS B Section 8
Current protection
567
Technical manual