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Introducing the L90 Universal Relay Advanced transmission line protection and control

Introducing the L90 Universal Relay Advanced transmission line protection and control. High-speed current differential protection for single or three-phase tripping applications. Applications. UR Advantages. Features and Benefits. Additional Features. Block Diagram.

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Introducing the L90 Universal Relay Advanced transmission line protection and control

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  1. Introducing the L90 Universal RelayAdvanced transmission line protection and control High-speed current differential protection for single or three-phase tripping applications

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

  3. 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

  4. UR AdvantagesThe 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-870-101

  5. Features and Benefits • Robust features put the L90 ahead of the competition: • Innovative current differential scheme features adaptive restraint • Programmable FlexLogicTM 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

  6. 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

  7. Block Diagram Extensive range of device protection features

  8. 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

  9. Monitoring and Metering • Fault location and reporting – stored in non-volatile memory • Breaker Arcing Current (I 2t) – 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

  10. URPC Software Settings Configuration Oscillography Metering Single-Line Diagrams Monitoring and control made easy

  11. Communications Protocols: • 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 Open protocol facilitates communications with legacy devices

  12. 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 UCATM MMS/Ethernet protocol • Combines peer-to-peer high-speed communication capabilities with • modularity, flexibility and field-programmable FlexLogixTM The L90 has the flexibility, connectivity and power to manage your system

  13. How to order Order code available online or in the L90 product brochure: To order the L90, contact your local GE Multilin sales office, or contact us directly: Web: www.GEindustrial.com/multilin Tel: +1 905-294-6222 Fax: +1 905-201-2098 Email: gemultilin@indsys.ge.com • GE Multlilin Inc. • 215 Anderson Ave., • Markham, Ontario • Canada L6E 1B3

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