ABB REG650 Product Manual page 48

Generator protection REG650
Product version: 1.3
Table 41. Voltage-restrained time overcurrent protection VRPVOC
Function
Start overcurrent
Definite time delay
Inverse characteristics, see table 74, table
Operate time start overcurrent
Reset time start overcurrent
Start undervoltage
Operate time start undervoltage
Reset time start undervoltage
High voltage limit, voltage dependent operation
Reset ratio, overcurrent
Reset ratio, undervoltage
Overcurrent:
Critical impulse time
Impulse margin time
Voltage protection
Table 42. Two step undervoltage protection UV2PTUV
Function
Operate voltage, low and high step
Reset ratio
Inverse time characteristics for low and high step, see table
Definite time delay, step 1
Definite time delays, step 2
Minimum operate time, inverse characteristics
Operate time, start function
Reset time, start function
Critical impulse time
Impulse margin time
48
Range or value
(2 - 5000)% of IBase
(0.00 - 6000.00) s
75 and table 76 13 curve types
30 ms typically at 0 to 2 x I
20 ms typically at 0 to 10 x I
40 ms typically at 2 to 0 x I
(2.0 - 100.0)% of UBase
30 ms typically 2 to 0 x U
40 ms typically at 0 to 2 x U
(30 - 100)% of UBase
> 95%
< 105%
10 ms typically at 0 to 2 x I
15 ms typically
Range or value
(1–100)% of
<102%
78 -
(0.00 - 6000.00) s
(0.000-60.000) s
(0.000–60.000) s
30 ms typically at 1.2 to 0.5U
40 ms typically at 0.5 to 1.2 xU
10 ms typically at 1.2 to 0.8 x U
15 ms typically
set
set
set
set
set
set
UBase
set
set
set
1MRK 502 050-BEN B
Accuracy
± 1.0% of I at I<I
r r
± 1.0% of I at I>I
r
± 0.5% ± 25 ms
ANSI/IEEE C37.112
IEC 60255–151
±3% or ±40 ms
0.10 ≤ k ≤ 3.00
1.5 x I ≤ I ≤ 20 x I
set set
-
-
± 0.5% of U
r
-
-
± 1.0% of U
r
-
-
-
Accuracy
± 0.5% of U
r
-
See table 78
± 0.5% ± 25 ms
± 0.5% ±25 ms
± 0.5% ± 25 ms
-
-
-
-
ABB