Fault Locator (Scefrflo); Fault Locator (Scefrflo) Main Settings; Load-Shedding And Restoration (Lshdpfrq) - ABB REX640 Product Manual

REX640
Product version: 1
Table 170. Fault locator (SCEFRFLO)
Characteristic
Measurement accuracy
Table 171. Fault locator (SCEFRFLO) main settings
Parameter
Z Max phase load
Ph leakage Ris
Ph capacitive React
R1 line section A
X1 line section A
R0 line section A
X0 line section A
Line Len section A
Table 172. Load-shedding and restoration (LSHDPFRQ)
Characteristic
Operation accuracy
Start time
Reset time
Operate time accuracy
82
Function
SCEFRFLO
SCEFRFLO
SCEFRFLO
SCEFRFLO
SCEFRFLO
SCEFRFLO
SCEFRFLO
SCEFRFLO
f<
df/dt
f<
df/dt
Value
At the frequency f = f
n
Impedance:
±2.5% or ±0.05 Ω
Distance:
±2.0% or ±0.04 km/0.025 mile
XC0F_CALC:
±3% or ±0.01 Zn/1.15 Ω
IFLT_PER_ILD:
±5% or ±0.05
Value (Range)
1.0...10000.0 Ω
20...1000000 Ω
10...1000000 Ω
0.000...1000.000 Ω/pu
0.000...1000.000 Ω/pu
0.000...1000.000 Ω/pu
0.000...1000.000 Ω/pu
0.000...1000.000 pu
Value
±5 mHz
±100 mHz/s (in range |df/dt| < 5 Hz/s)
± 2.0% of the set value (in range 5 Hz/s < |df/dt| < 15 Hz/s)
<80 ms
<120 ms
<150 ms
±1.0% of the set value or ±30 ms
1MRS759144 A
Step
0.1
1
1
0.001
0.001
0.001
0.001
0.001
ABB