ABB REC650 Product Manual page 53

ABB
Bay control REC650
Product version: 1.1
Table 24. Four step residual overcurrent protection EF4PTOC
Function
Operate current
Reset ratio
Operate current for
directional comparison
Min. operating current
Minimum operate time
for inverse characteristics
Timers
Inverse characteristics,
see table 65, table 66 and
table 67
Minimum polarizing
voltage
Minimum polarizing
current
Real part of source Z
used for current
polarization
Imaginary part of source
Z used for current
polarization
Operate time, non-
directional start function
Reset time, non-
directional start function
Operate time, directional
start function
Reset time, directional
start function
Range or value
(1-2500)% of lBase
> 95%
(1–100)% of lBase
(1-10000)% of lBase
(0.000-60.000) s
(0.000-60.000) s
17 curve types
(1–100)% of UBase
(2-100)% of IBase
(0.50-1000.00) W/phase
(0.50–3000.00) W/phase
30 ms typically at 0.5 to 2 x I
30 ms typically at 2 to 0.5 x I
30 ms typically at 0,5 to 2 x I
30 ms typically at 2 to 0,5 x I
1MRK 511 249-BEN -
Issued: February 2011
Accuracy
± 1.0% of I at I £ I
r
± 1.0% of I at I > I
-
± 1.0% of I
r
± 1.0% of I at I < I
r
1.0% of I at I < I
± 0.5% ± 25 ms
± 0.5% ±25 ms
See table 65, table
table 67
± 0.5% of U
r
±1.0% of I
r
-
-
-
set
-
set
-
N
-
N
r
r
±
r
r
66 and
53