Table 170. Fault locator (SCEFRFLO)
Characteristic
Value
Measurement accuracy
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
Table 171. Fault locator (SCEFRFLO) main settings
Parameter
Function
Value (Range)
Step
Z Max phase load
SCEFRFLO
1.0...10000.0 Ω
0.1
Ph leakage Ris
SCEFRFLO
20...1000000 Ω
1
Ph capacitive React
SCEFRFLO
10...1000000 Ω
1
R1 line section A
SCEFRFLO
0.000...1000.000 Ω/pu
0.001
X1 line section A
SCEFRFLO
0.000...1000.000 Ω/pu
0.001
R0 line section A
SCEFRFLO
0.000...1000.000 Ω/pu
0.001
X0 line section A
SCEFRFLO
0.000...1000.000 Ω/pu
0.001
Line Len section A
SCEFRFLO
0.000...1000.000 pu
0.001
Table 172. Load-shedding and restoration (LSHDPFRQ)
Characteristic
Value
Operation accuracy
f<
±5 mHz
df/dt
±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)
Start time
f<
<80 ms
df/dt
<120 ms
Reset time
<150 ms
Operate time accuracy
±1.0% of the set value or ±30 ms
1MRS759144 A
REX640
Product version: 1
82
ABB
Содержание RELION REX640
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