ABB REL670 Product Manual page 100

Line distance protection REL670 2.2
Product version: 2.2
Table 95. Three phase overcurrent LCP3PTOC
Function
Operate value, overcurrent
Reset ratio, overcurrent
Start time at 0 to 2 x I
set
Reset time at 2 x I to 0
set
Critical impulse time, overcurrent
Impulse margin time, overcurrent
Independent time delay to operate at 0 to 2 x
I
set
Table 96. Three phase undercurrent LCP3PTUC
Function
Operate value, undercurrent
Reset ratio, undercurrent
Start time at 2 x I to 0
set
Reset time at 0 to 2 x I
set
Critical impulse time, undercurrent
Impulse margin time, undercurrent
Independent time delay to operate at 2 x I
100
Range or value
(5-2500)% of IBase
> 95% at (50-2500)% of IBase
Min. = 10 ms
Max. = 25 ms
Min. = 20 ms
Max. = 35 ms
3 ms typically at 0 to 2 x I
1 ms typically at 0 to 10 x I
10 ms typically
(0.000-60.000) s
Range or value
(1.00-100.00)% of IBase
< 105% at (50.00-100.00)% of
IBase
Min. = 15 ms
Max. = 30 ms
Min. = 10 ms
Max. = 25 ms
10 ms typically at 2 x I
10 ms typically
to 0 (0.000-60.000) s
set
Accuracy
±1.0% of I at I ≤ I
r r
±1.0% of I at I > I
r
-
-
-
-
set
set
-
±0.2% or ±30 ms whichever is greater
Accuracy
±1.0% of I
r
-
-
-
to 0 -
set
-
±0.2% or ±45 ms whichever is greater
1MRK 506 372-BEN -
ABB