Siprotec 5 Compact Relay: 7SJ81

Siprotec 5 Compact Relay: 7SJ81

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  • Description

Technical Specifications: 

Ø  Default graphical display

Ø   Control keys / USB front port

Ø    4 CT, 11BI/9BO or 18BI,14BO

Ø    4CT,4VT,11BI,9BO or 16BI,11BO

Ø    12 dual colour LED

Ø    External RTD box , On board arc card*

Ø   4-20mA inputs*

Ø    Serial Protocols RS485 , IEC103,DNP3*

Ø    Ethernet Protocls :IEC61850 Ed 1Ø & 2, Modbus TCP,DNP3,IEC104* 

Ø  Cyber secured

Ø    Web Monitoring

USP’s:

Ø  2000 Events, 128 FR, up to 128 DR 

Ø  1 to 8 kHz sampling frequency for DR

Ø    Virtual testing of protection functions

Ø    PQ basic measurement available

Applications:

Ø  Feeder protection 

Ø  Backup protection to main protection

Ø   Load shedding

Ø   Detection and recording of PQ data