SIEMENS SIPROTEC 7SJ85 OVERCURRENT PROTECTION NUMERICAL RELAY

Product Description

SIPROTEC 7SJ85

The SIPROTEC 7SJ85 overcurrentprotection has been designed specifically for the protection of feeders, linesand capacitor banks. With its modular structure, flexibility and the powerful DIGSI5 engineering tool, the SIPROTEC 7SJ85 device offers future-oriented systemsolutions with high investment security and low operating costs.

Features

Main function:

• Feeder and overcurrent protection for all voltage levels

Inputs andoutputs:

5 predefined standard variants with

• 4 current transformers, 
• 4 voltage transformers, 
• 11 to 59 binary inputs, 
• 9 to 33 binary outputs

Hardwareflexibility:

• Flexibly adjustable and expandable I/O quantity structure within the scope of the modular SIPROTEC 5 system; 1/6 expansion modules can be added, available with large or small display, or without display

Housing width:

• 1/3 19 inches to 2/1 19 inches

As standard:

• Conformal coating

Functions

DIGSI 5 permits all functions to be configured andcombined as required.

                                                                                                                                                                                IEC 61850-9-2 Client, IEC61850-9-2 Merging Unit, IEC 60870-5-103, IEC60870-5-104, Modbus TCP, DNP3 serial and TCP, PROFINET IO)

Serial protection datacommunication via optical fibers, two-wire connections and communicationnetworks (IEEE C37.94, and others), including automatic switchover between ringand chain topology

                cybersecurity functionality, such as role-basedaccess control (RBAC), protocolling security-related events or signed firmware

Simple, quick and secureaccess to device data via a standard Web browser without additional software

                                        Auxiliary functions forsimple tests and commissioning