Technical Data - ABB REG650 Technical Manual

1MRK 502 048-UEN A
8.10.8
Technical manual
The start signal starts a definite time delay. If the value of the start signal is logical
TRUE for longer than the set time delay, the undervoltage step sets its trip signal to
logical TRUE.
This undervoltage functionality together with additional ACT logic can be used to
provide functionality for overcurrent protection with undervoltage seal-in.

Technical data

Table 153: VRPVOC technical data
Function Range or value
Start overcurrent (2 - 5000)% of IBase
Definite time delay (0.00 - 6000.00) s
Inverse 13 curve types
characteristics, see
table 574, table 575
and table 576
Operate time start 30 ms typically at 0 to 2 x I
overcurrent
20 ms typically at 0 to 10 x I
Reset time start 40 ms typically at 2 to 0 x I
overcurrent
Start undervoltage (2.0 - 100.0)% of UBase
Operate time start 30 ms typically 2 to 0 x U
undervoltage
Reset time start 40 ms typically at 0 to 2 x U
undervoltage
High voltage limit, (30 - 100)% of UBase
voltage dependent
operation
Reset ratio, > 95%
overcurrent
Reset ratio, < 105%
undervoltage
Overcurrent:
Critical impulse time 10 ms typically at 0 to 2 x I
Impulse margin time
15 ms typically
Current protection
Accuracy
± 1.0% of I
± 1.0% of I at I>I
± 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
set
-
set
± 0.5% of U
-
set
-
set
± 1.0% of U
-
-
-
set
Section 8
at I<I
r r
r
set
r
r
255