Monitored Data - ABB REL650 series Technical Manual

1MRK 506 335-UUS A
Table 180: DNSPTOC (46) Non group settings (basic)
Name Values (Range)
GlobalBaseSel 1 - 6
7.16.6
7.16.7
7.16.8
Technical manual
Unit Step
- 1

Monitored data

Table 181: DNSPTOC (46) Monitored data
Name Type
CURRENT REAL
VOLTAGE REAL
UIANGLE REAL
Operation principle
Negative sequence based overcurrent function (DNSPTOC, 46) has two settable current
levels, setting parameters PickupCurr_OC1 and PickupCurr_OC2. Both features have
definite time characteristics with settings tDef_OC1 and tDef_OC2 respectively. It is
possible to change the direction of these steps to forward, reverse or non-directional by
setting parameters DirMode_OC1 and DirMode_OC2. At too low polarizing voltage the
overcurrent feature can be either blocked or non-directional. This is controlled by settings
ActLowVolt1_VM and ActLowVolt2_VM.
Technical data
Table 182: DNSPTOC (46) Technical data
Function
Operate current
Reset ratio
Low polarizing voltage level
Relay characteristic angle
Relay operate angle
Timers
Operate time, non-directional
Reset time, non-directional
Table continues on next page
Default Description
1 Selection of one of the Global Base Value
groups
Values (Range) Unit
- A
- kV
- deg
Range or value
IBase
(2.0 - 200.0) % of
> 95 %
VBase
(0.0 - 5.0) % of
(-180 - 180) degrees
(1 - 90) degrees
(0.00 - 6000.00) s
30 ms typically at 0 to 2 x I
set
20 ms typically at 0 to 10 x I
set
40 ms typically at 2 to 0 x I
set
Section 7
Current protection
Description
Measured current value
Measured voltage value
Angle between voltage and
current
Accuracy
± 1.0% of I at I <I
r n
± 1.0% of I at I > I
n
-
< ± 0.5% of V
n
± 2.0 degrees
± 2.0 degrees
± 0.5% ± 25 ms
-
-
291