Industrial Systems Introducing the L90 Universal Relay Advanced transmission line protection and control High-speed current differential protection for single or three-phase tripping applications

Industrial Systems L90: Line Differential Relay Monitoring & Metering URPC Software Communications Additional Features UR Advantages Applications Features and Benefits Protection and Control Block Diagram Summary How To Order

Industrial Systems Applications The L90 is suitable for diverse applications including: Transmission lines of any voltage level, including series compensated lines Stand-alone or component in automated substation control system Single-pole tripping and breaker-and-a-half installations

Industrial Systems UR Advantages The L90 is a member of the Universal Relay family FAMILY of relays built on a common platform Common “look & feel” for ease of use product to product All features, present and future, available to whole family Reduced training time and drafting costs MODULAR architecture Scaleable - accommodates a scaleable I/O architecture Flexible - accommodates different types of I/O Upgradeable - accommodates upgrading to new technologies COMMUNICATIONS High-speed networking capability (Ethernet - fiber, redundancy) Multiple Protocols - UCA 2.0, DNP 3.0, Modbus, IEC

Industrial Systems Features and Benefits Robust features put the L90 ahead of the competition: Innovative current differential scheme features adaptive restraint Programmable FlexLogic TM reduces device costs and simplifies wiring Non-volatile flash memory allows easy field upgrades Common draw out modules reduce spare part costs Charging current compensation for long lines or cable applications Channel asymmetry compensation (up to 10miliseconds) via Irig-B port (GPS) Scalable, flexible features that increase reliability

Industrial Systems Additional Features Cost-effective (up to 250 Microsecond) time synchronization for communications The L90 can synchronize and start protecting the line within 10 seconds A fine-tuned frequency tracking mechanism increases accuracy of the relay’s measuring and protection functions under off-normal frequency conditions User-programmable pushbuttons for secure and reliable custom control One of the best line current differential protection systems in the world

Industrial Systems Block Diagram Extensive range of device protection features

Industrial Systems Protection and Control Protection features include: Current differential protection, DTT (Direct Transfer Trip) Phase and ground distance Multiple current and voltage elements Directional phase and neutral FlexElement universal comparator Single-pole dual-breaker autoreclosure Control features include: Two Synchrocheck Elements Single-pole dual-breaker autoreclosure Comprehensive protection for all application specific functions and capabilities

Industrial Systems Monitoring and Metering Fault location and reporting – stored in non-volatile memory Breaker Arcing Current (I 2 t) – for maintenance on breaker wear User-programmable oscillography – data viewable via URPC software and can be stored in the oscillography record or data logger User-programmable data logger – captures events and time-stamps them for use with fault analysis Trip circuit monitoring Built in monitoring and metering open a window into your system

Industrial Systems URPC Software Settings Metering Configuration Single-Line Diagrams Oscillography Monitoring and control made easy

Industrial Systems Communications Modbus RTU over RS485 and over Ethernet TCP/IP DNP 3.0 Level 2 over RS485 and over Ethernet TCP/IP Peer-to-peer communications (GOOSE) via UCA/IEC61850 Direct I/O’s for Peer-to-Peer UR communications up to 100km on single-mode fiber Protocols: Open protocol facilitates communications with legacy devices

Industrial Systems Summary Integrated transmission line protection for series compensated lines Channel asymmetry, fast scheme syncronization, frequency tracking, and single-pole dual-breaker autorecloser Low overall installation costs saving the customer time and money Supports the open standard EPRI UCA TM MMS/Ethernet protocol Combines peer-to-peer high-speed communication capabilities with modularity, flexibility and field-programmable FlexLogix TM The L90 has the flexibility, connectivity and power to manage your system

Industrial Systems How to order To order the L90, contact your local GE Multilin sales office, or contact us directly: GE Multlilin Inc. 215 Anderson Ave., Markham, Ontario Canada L6E 1B3 Web: Tel: Fax: Order code available online or in the L90 product brochure:online