ABB Relion 670 Series Technical Reference Manual page 441

1MRK505222-UUS C
Name Values (Range)
tPRCrv4 0.005 - 3.000
tTRCrv4 0.005 - 100.000
tCRCrv4 0.1 - 10.0
7.5.6
Technical reference manual
Unit Step
- 0.001
- 0.001
- 0.1
Technical data
Table 207: NS4PTOC (46I2) technical data
Function
Operate value, negative
sequence current, step 1-4
Reset ratio
Timers
Inverse characteristics, see
table 728, table 729 and table
Minimum operate current for
step 1 - 4
Operate value, negative current
for directional release
Relay characteristic angle
Minimum polarizing voltage
Minimum polarizing current
Real part of negative sequence
source impedance used for
current polarization
Imaginary part of negative
sequence source impedance
used for current polarization
Operate time, pickup function
Reset time, pickup function
Critical impulse time, pickup
function
Impulse margin time, pickup
function
Transient overreach
Default
0.500
13.500
1.0
Range or value
lBase
(1-2500)% of
> 95%
(0.000-60.000) s
18 curve types
730
IBase
(1.00 - 10000.00)% of
IBase
(1–100)% of
(-180 to 180) degrees
VBase
(1–100)% of
(2-100)% of IBase
(0.50-1000.00) W/phase
(0.50–3000.00) W/phase
25 ms typically at 0.5 to 2 x I
25 ms typically at 2 to 0.5 x I
10 ms typically at 0 to 2 x I
15 ms typically
<10% at τ = 100 ms
Current protection
Description
Parameter PR for customer programmable
curve step 4
Parameter TR for customer programmable
curve step 4
Parameter CR for customer programmable
curve step 4
Accuracy
± 1.0% of I at I £ I
n
± 1.0% of I at I > I
-
± 0.5% ± 10 ms
See table 728, table
table 730
± 1.0% of I at I < I
n
± 1.0% of I at I > I
± 1.0% of I
n
± 2.0 degrees
± 0.5% of V
n
±1.0% of I
n
-
-
-
set
-
set
-
set
-
-
Section 7
n
n
729 and
n
n
435