Energy Automation

Description

The feeder and overcurrent protection SIPROTEC 7SJ85 is part of the new SIPROTEC 5 series of modular field devices.

With its flexibility and its high-performance DIGSI 5 engi-neering tool, the SIPROTEC 7SJ85 fits perfectly for protec-tion, control, monitoring, and measuring applications in electrical energy systems.

Applications

The overcurrent protection device SIPROTEC 7SJ85 is a universal protection, control and automation device on the basis of the SIPROTEC 5 system. It is especially designed for the protection of feeders and lines.

Typical feeder and overcurrent applications are:

Detection of short circuits in electric operational equip-ment of radial networks, lines which are supplied from one or two sides, parallel lines and open or closed looped networks of all voltage levels

Detection of ground faults in isolated or resonant-grounded systems with radial, ring-shaped or meshed topology

Backup protection of differential protective schemes of all types of lines, transformers, generators, motors, and bus-bars

Protection and monitoring of capacitor banks

Phasor Measurement Unit (PMU)

Reverse power protection

Load shedding applications

Switchover automation

Functionality

Directional and non-directional time overcurrent protec-tion with additional functions

Protection of several feeders with up to 24 analog inputs

Optimization of the tripping times by direction compari-son and protection data communication

Recognition of static, intermitting and transient ground faults (transient function) in resonant-grounded and iso-lated net-works

Arc protection

Overvoltage and undervoltage protection

Frequency protection and frequency change protection for load shedding applications

Power protection, configurable as active or reactive power protection

Protection functions for capacitor banks, e.g. overcur-rent, thermal overload, current unbalance, peak over-voltage or differential protection

Undervoltage-controlled reactive power protection

Control, synchrocheck and system interlocking

Circuit-breaker failure protection

Circuit-breaker restrike protection

Protection Technology

SIPROTEC 7SJ85 Feeder and overcurrent protection

Feeder and overcurrent protection SIPROTEC 7SJ85

(housing width 1/3 x 19’’ to 2/1 x 19’’)

Please contact us for an individual consultation. We are looking forward to your request!

Published by and copyright © 2015: Siemens AG Energy Management Humboldtstr. 59 90459 Nuremberg Germany www.siemens.com/siprotec

For more information, please contact your Siemens-Partner or our Customer Support Center. Phone: +49 180 524 84 37 Fax: +49 180 524 24 71 (Charges depending on the provider) E-mail: support.energy@siemens.com SIPROTEC 7SJ85 V6 profile.docx

Printed on elementary chlorine-free bleached paper. All rights reserved. Trademarks mentioned in this document are the property of Siemens AG, its affiliates, or their respective owners. Subject to change without prior notice. The information in this document contains general descriptions of the technical options available, which may not apply in all cases. The required technical options should therefore be specified in the contract.

For all products using security features of OpenSSL the following shall apply: This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit (www.openssl.org). This product includes cryptographic software written by Eric Young (eay@cryptsoft.com).

Energy Automation

Powerful automation with graphical CFC (Continuous Function Chart)

Support of single line in small and large displays

Integrated electrical Ethernet port J for DIGSI and IEC 61850 functionality (reporting)

Two optional pluggable communication modules, usable for different and redundant protocols (IEC 61850, IEC 60870-5-103, IEC 60870-5-104, Modbus TCP, DNP3 (serial and TCP)

Serial protection data communication via fiber-optic cable, two-wire connections and communication net-works (IEEE C37.94 et al.) including automatic switch between ring and chain topology

High available Ethernet redundancy protocols PRP and HSR

Cyber Security acc. NERC CIP and BDEW Whitepaper

Phasor Measurement Unit (PMU) for synchrophasor measured values and IEEE C37.118 protocol

Time synchronization using IEEE 1588

Powerful fault recording

Additional functions for simple tests and easy commis-sioning.

Benefits

Compact and cost effective feeder protection device

High-performance protection features guarantee safety

Data security and transparency throughout the entire life cycle of the system save time and reduce costs

Clear and easy-to-use devices and software thanks to user-friendly design

Increased quality and reliability of the engineering process

High degree of overall safety and security based on thorough implementation

High-performance communications components guarantee safe and effective solutions

Full compatibility with IEC 61850 Edition 1 and 2

Future proof system solutions provide high investment security and low operation costs