Technical Data
4.19 Fault Locator
SIPROTEC, 7SJ62/64, Manual
C53000-G1140-C207-2, Release date 01.2008
519
4.19 Fault Locator
1)
Homogeneous lines or correctly configured line sections are assumed when the fault distance is given in
km, miles or %.
Units of Distance Measurement in Ω primary and secondary
in km or miles line length
or in % of line length
1)
Trigger trip command,
Dropout of an Element, or
External command via binary input
Reactance Setting (secondary) for I
Nom
= 1 A 0.0050 to 9.5000 Ω/km Increments 0.0001
0.0050 to 15.0000 Ω/mile Increments 0.0001
for I
Nom
= 5 A 0.0010 to 1.9000 Ω/km Increments 0.0001
0.0010 to 3.0000 Ω/mile Increments 0.0001
For the remaining parameters refer to the Power System Data 2.
When configuring mixed lines, the reactance value must be set for each line section (A1 to A3).
Measurement Tolerance acc. to VDE 0435, Part 303 for
Sinusoidal Measurement Quantities
2.5% fault location (without intermediate infeed)
30° ≤ ϕ
K
≤ 90° and V
K
/V
Nom
≥ 0.1 and I
K
/I
Nom
≥ 1.0
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