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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. - PowerPoint PPT Presentation
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Industrial Systems
Introducing the L90 Universal RelayAdvanced 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 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
Industrial Systems
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
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 ControlProtection 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 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
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 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
Industrial Systems
How to orderTo 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: www.GEindustrial.com/multilin
Tel: +1 905-294-6222
Fax: +1 905-201-2098
Email: [email protected]
Order code available online or in the L90 product brochure:
