ABB REC670 Product Manual page 45

ABB
Bay control REC670
Pre-configured
Product version: 1.1
Table 27. Four step phase overcurrent protection OC4PTOC
Function
Operate current
Reset ratio
Min. operating current
Relay characteristic angle
(RCA)
Maximum forward angle
Minimum forward angle
2nd harmonic blocking
Independent time delay
Minimum operate time
Inverse characteristics,
see table 88, table 89 and
table 90
Operate time, start
function
Reset time, start function
Critical impulse time
Impulse margin time
Setting range
(1-2500)% of lBase
> 95%
(1-100)% of lBase
(-70.0– -50.0) degrees
(40.0–70.0) degrees
(75.0–90.0) degrees
(5–100)% of fundamental
(0.000-60.000) s
(0.000-60.000) s
19 curve types
25 ms typically at 0 to 2 x I
25 ms typically at 2 to 0 x I
10 ms typically at 0 to 2 x I
15 ms typically
1MRK 511 192-BEN B
Issued: June 2010
Accuracy
± 1.0% of I at I £ I
r
± 1.0% of I at I > I
-
± 1.0% of I
r
± 2.0 degrees
± 2.0 degrees
± 2.0 degrees
± 2.0% of I
r
± 0.5% ± 10 ms
± 0.5% ± 10 ms
See table 88, table
table 90
-
set
-
set
-
set
-
r
r
89 and
45