ABB Relion 670 series - Technical data; Sudden change in current variation SCCVPTOC (51)

Table 456: COUVGAPC (59_27) Non group settings (basic)
Name Values (Range) Unit Step Default Description
R1 0.01 - 3000.00 ohm 0.01 5.00 Positive sequence resistance per phase for
the line in ohm
X1 0.01 - 3000.00 ohm 0.01 40.00 Positive sequence reactance per phase for
the line in ohm
Xc 1.00 - 10000.00 ohm 0.01 1000.00 Half of equivalent capacitive reactance per
phase in ohm
EnShuntReactor Disabled
Enabled
- - Enabled Enable setting if shunt reactor connected in line
Xsh 1.00 - 10000.00 ohm 0.01 1500.00 Per phase reactance of local Shunt Reactor
in ohm
13.8.3.6 Technical data
Table 457: COUVGAPC (59_27)technical data
Function Range or value Accuracy
Operate value,
undervoltage
(1-100)% of VBase ± 0,5% of V
n
Reset ratio, undervoltage <105% -
Critical impulse time,
undervoltage
5 ms typically at 1.2 to 0.8xV
set
-
Impulse margin time,
undervoltage
15 ms typically -
Operate value,
overvoltage
(1-200)% of VBase ± 0.5% of V
n
at V<V
n
± 0.5% of V at V>V
n
Reset ratio, overvoltage >95% -
Critical impulse time,
overvoltage
2 ms typically at 0.8 to 1.2xV
set
-
Impulse margin time,
overvoltage
10 ms typically -
Timers (0.000-60.000) s ± 0.5% ± 10 ms
13.8.4 Sudden change in current variation SCCVPTOC (51)
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Sudden change in current variation SCCVPTOC - 51
1MRK505222-UUS C Section 13
Scheme communication
839
Technical reference manual