ABB Relion 670 Series Technical Reference Manual page 860

Section 13
Scheme communication
13.8.10.5
Table 485: LCP3PTOC (51) Group settings (basic)
Name Values (Range)
Operation Disabled
Enabled
IBase 0 - 99999
PU 51 5 - 2500
tOC 0.000 - 60.000
13.8.10.6
854
Table 484: LCP3PTOC (51) Output signals
Name Type
TRIP BOOLEAN
TR_A BOOLEAN
TR_B BOOLEAN
TR_C BOOLEAN
RI BOOLEAN
PU_A BOOLEAN
PU_B BOOLEAN
BFI_C BOOLEAN
Setting parameters
Unit Step
- -
A 1
%IB 1
s 0.001
Technical data
Table 486: LCP3PTOC (51) technical data
Function
Operate value,
overcurrent
Reset ratio, overcurrent
Operate time, start
Reset time, start
Critical impulse time,
overcurrent
Impulse margin time,
overcurrent
Timers
Description
Common trip signal
Trip signal from phase A
Trip signal from phase B
Trip signal from phase C
Common start signal
Pickup signal from phase A
Pickup signal from phase B
Pickup signal from phase C
Default
Disabled
3000
1000
0.020
Range or value
(5-2500)% of IBase
>95%
20 ms typically at 0 to 2xI
set
15 ms typically at 0 to 10xI
set
30 ms typically at 2 to 0xI
set
5 ms typically at 0 to 2xI
set
2 ms typically at 0 to 10xI
set
10 ms typically
(0.000-60.000) s
1MRK505222-UUS C
Description
Operation Enable / Disable
Base setting for current in A
Start value for 3 phase over current in % IBase
Time delay to operate
Accuracy
± 1.0% of Ir at I < I
± 1.0% of I at I > I
-
-
-
-
-
± 0.5% ± 10 ms
Technical reference manual
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