Siemens siprotec 7SA522 User Manual

4.17 Fault Locator
475
7SA522 Manual
C53000-G1176-C155-3
4.17 Fault Locator
General
Start With trip command or drop-off
Setting range reactance (secondary),
miles or km
for I
N
= 1 A 0.0050 Ω/km up to 9.5000 Ω/km Increments 0.001 Ω/km
for I
N
= 5 A 0.0010 Ω/km up to 1.9000 Ω/km
for I
N
= 1 A 0.0050 Ω/mile up to 15.0000 Ω/mile Increments 0.001 Ω/mile
for I
N
= 5 A 0.0010 Ω/mile up to 3.0000 Ω/mile
Parallel line compensation (optional) Can be switched on/off
The setting values are the same as for the distance protection
(see Section 4.2)
Taking into consideration the load current in case of
single-phase earth faults
Correction of the X-value, can be activated and deactivated
Output of the fault distance In Ω primary and Ω secondary,
in km or miles line
1)
in % line length
1)
Measuring tolerances
with sinusoidal quantities
2.5 % of the line length
at 30° ≤ ϕ
k
≤ 90° and U
k
/U
N
≥ 0.1
1)
Output of the fault distance in km, miles, and % requires homogeneous lines.

Siemens siprotec 7SA522 Specifications

General

Brand	Siemens
Model	siprotec 7SA522
Category	Protection Device
Language	English