Siemens SIPROTEC 7SJ80 User Manual

Inrush Restraint
Controlled Elements
Time Overcurrent Elements 50-1, 50N-1, 51, 51N, 67-1, 67N-1
Setting Ranges / Increments
Stabilization factor Ι
2f
/Ι
10 % to 45 % Increments 1 %
Functional Limits
Lower Function Limit Phases
for Ι
Nom
= 1 A
at least one phase current (50 Hz and 100 Hz) ≥ 50 mA
for Ι
Nom
= 5 A
at least one phase current (50 Hz and 100 Hz) ≥ 125 mA
Lower Function Limit ground
for Ι
Nom
= 1 A
Ground current (50 Hz and 100 Hz) ≥ 50 mA
for Ι
Nom
= 5 A
Ground current (50 Hz and 100 Hz) ≥ 125 mA
Upper Function Limit,
configurable
for Ι
Nom
= 1 A
0.30 A to 25.00 A Increments 0.01 A
for Ι
Nom
= 5 A
1.50 A to 125.00 A Increments 0.01 A
Crossblock
Crossblock Ι
A
, Ι
B
, Ι
C
ON/OFF
4.5
Technical Data
4.5 Inrush Restraint
378 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