Fault Locator
Setting Values
Reactance per unit length of the line per kilometer or per mile
Line length for the correct output of the fault distance as a percentage of the line length
The residual compensation factors in the setting format Kr and Kx or K0 and angle (K0)
Consideration of the load current for 1-pole ground
faults
Correction of the X value, for connection and discon-
nection
Fault Distance
Output of the fault distance (line length) In Ω primary and secondary
In km, miles or in percent.
144
Tolerances
Measuring tolerances during sinusoidal measurands
and error duration
> 25 ms at 60 Hz or
> 30 ms at 50 Hz
1.5 % from fault location at V
K
/V
rated
≥ 0.01 and one of
the following scenarios:
•
Metal fault
•
Non-metallic fault for one-side infeed without
load
12.53
144
The output of the fault distance in km, miles and percent presupposes a homogenous line.
Technical Data
12.53 Fault Locator
SIPROTEC 5, Overcurrent Protection, Manual 1543
C53000-G5040-C017-8, Edition 07.2017
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