Siemens SIPROTEC 7SJ80 User Manual

Directional intermittent ground fault protection
Setting Ranges / Increments
Pickup threshold Vgnd> / 3V0> 2.0 V .. 100.0 V Increments 1 V
Monitoring time after pickup detected 0.04 s ... 10.00 s Increments 0.01 s
Pulse no. for detecting the interm. E/F 2 ... 50 Increments 1
Dropout ratio
Dropout ratio Vgnd> / 3V0> 0,95 or (pickup value - 0,6 V)
Tolerances
Measurement tolerance Vgnd> / 3V0> 3 % of setting value
Times 1 % of setting value or 10 ms
Influencing Variables
Power supply direct voltage in range 0.8 ≤ V
PS
/V
PSNom
≤ 1.15 <1 %
Temperature in range 23.00 °F (-5 °C) ≤ Θ
amb
≤ 131.00 °F (55 °C) <0,5 %/ K
4.16
Technical Data
4.16 Directional intermittent ground fault protection
402 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