Siemens SIPROTEC 7SJ80 User Manual

Fault Locator
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 Ι
Nom
= 1 A
0.0050 to 9.5000 Ω/km Increments
0.0001
0.0050 to 15.0000 Ω/Meile Increments
0.0001
for Ι
Nom
= 5 A
0.0010 to 1.9000 Ω/km Increments
0.0001
0.0010 to 3.0000 Ω/Meile 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
2,0 % fault location (without intermediate infeed)
30° ≤ φ
K
≤ 90° and V
K
/V
Nom
≥ 0.1 and Ι
K
/Ι
Nom
≥ 1.0
1)
Homogeneous lines or correctly configured line sections are assumed when the fault distance is given in km,
miles or %.
4.18
Technical Data
4.18 Fault Locator
404 SIPROTEC 4, 7SJ80, Manual
E50417-G1140-C343-A8, Edition 12.2017

Siemens SIPROTEC 7SJ80 Specifications

General

Rated Frequency	50/60 Hz
Rated Current	1 A / 5 A
Operating Temperature	-25°C to +55°C
Storage Temperature	-40°C to +70°C
Current Transformer Inputs	4
Application	Protection of feeders, motors, transformers, and generators
Rated Voltage	100-240 V AC/DC
Communication Protocols	IEC 61850, Modbus, DNP3, IEC 60870-5-103
Display	Graphical LCD
Mounting	Flush mounting
Protection Functions	Overcurrent, Earth fault
Communication Interfaces	Ethernet, RS485
Housing	Plastic
Weight	Approx. 1.5 kg