Technical Data; Voltage-Restrained Time Overcurrent Protection Vr2Pvoc; Identification; Functionality - ABB REG650 Technical Manual

Section 7
Current protection
7.9.8
7.10
7.10.1
7.10.2
210

Technical data

Table 118: NS2PTOC technical data
Function Range or value
Operate value, step (3-500)% of
1 and 2, negative
sequence
overcurrent
Reset ratio, step 1 >95%
and 2
Operate time, start 30 ms typically at 0 to 2 x I
20 ms typically at 0 to 10 x I
Reset time, start 40 ms typically at 2 to 0 x I
Time characteristics Definite or Inverse
Inverse time K=1.0-99.0
characteristic step 1,
2
=
I t K
2
Reset time, inverse K=0.01-20.00
characteristic step 1,
2
=
I t K
2
Maximum trip delay, (0.00-6000.00) s
step 1 IDMT
Minimum trip delay, (0.000-60.000) s
step 1 IDMT
Timers (0.00-6000.00) s
Voltage-restrained time overcurrent protection
VR2PVOC

Identification

Function description
Voltage-restrained time overcurrent
protection

Functionality

Voltage-restrained time overcurrent protection (VR2PVOC) function is
recommended as a backup protection for generators.
The overcurrent protection feature has a settable current level that can be used
either with definite time or inverse time characteristic. Additionally, it can be
voltage controlled/restrained.
IBase
set
set
set
IEC 61850 IEC 60617
identification identification
VR2PVOC
1MRK 502 034-UEN -
Accuracy
± 1.0% of Ir at I < I
r
± 1.0% of I at I > I
r
-
-
-
-
Class 5 + 40 ms
Class 10 + 40 ms
± 0.5% ± 25 ms
± 0.5% ± 25 ms
± 0.5% ± 25 ms
ANSI/IEEE C37.2
device number
U<I> 51V
Technical Manual