Siemens SIPROTEC 7SJ80 User Manual

Harmonics
- up to 10 % 3rd harmonic
- up to 10 % 5th harmonic
at instantaneous value of 50-3/50N-3 elements
1 %
1 %
Increased tolerances
Transient overreaction for τ > 100 ms (with full displacement) <5 %
[ausloese-rueckfall-kennli-amz-iec-norm-stark-170502-wlk, 1, en_US]
Figure 4-1
Dropout time and trip time curves of the inverse time overcurrent protection, acc. to IEC
Technical Data
4.3 Inverse-time Overcurrent Protection
SIPROTEC 4, 7SJ80, Manual 367
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