General Electric Multilin L60 overview
GE Multilin L60 Series Line Phase Comparison System | Sub-Cycle Phase Comparison and Distance Protection Extremely fast and secure phase comparison protection w...
Product details
Manufactured byGeneral Electric
Product groupModules
DescriptionGE Multilin L60 Series Line Phase Comparison System | Sub-Cycle Phase Comparison and Distance Protection
Key BenefitsExtremely fast and secure phase comparison protection with a typical tripping time of ¾ of a power cycle End-to-end communication over power line carrier provides cost-effective solution Advanced algorithms for channel noise immunity, accurate per channel signal asymmetry, charging current compensation and channel delay compensation Three-zone high-speed backup phase and ground distance function Application flexibility: multiple I/O options, programmable logic (FlexLogic™), modularity, customizable to specific requirements Three independent fiber or copper Ethernet ports for simultaneous/dedicated network connections with advanced 1 microsecond time synchronization via LAN with IEEE® 1588 support Embedded IEC® 61850 protocol Increase network availability by reducing failover time to zero through IEC 62439-3 “PRP” support CyberSentry™ provides high-end cyber security aligned to industry standards and services (NERC® CIP, AAA, Radius, RBAC, Syslog) Advanced fault and disturbance recording, including internal relay operating signals, eliminating the need for external recording devices
Typical ApplicationsShort and long overhead lines and cables of different voltage levels Suitable for two and three-terminal lines Circuits with tapped transformer feeders Implicit direct transfer trip (DTT) for breaker failure applications
Protection and ControlSingle or dual-phase comparison with permissive and blocking schemes for two and three-terminal applications Multiple phase, ground, neutral and negative sequence instantaneous and timed overcurrent elements 3-zone phase and ground distance elements Phase and negative sequence directional overcurrent, neutral directional with dual polarity criteria and thermal overload Overvoltage and undervoltage Single-pole, dual-breaker autoreclose with synchronism check CT failure, VT fuse failure Wattmetric zero-sequence directional function
CommunicationsNetworking interfaces: up to three Ethernet ports 100Mb fiber or copper, RS485, RS232, RS422, G.703, IEEE C37.94 Multiple protocols: IEC 61850, DNP 3.0 and Modbus® serial/TCP, IEEE 1588, IEC 60870-5-104 and 103, PRP, SNTP, HTTP, TFTP Direct I/O: secure high-speed exchange of data between URs for DTT and pilot-aided distance schemes Embedded managed Ethernet switch with four 100 Mbit fiber optic ports and 2 copper ports
Monitoring and MeteringBreaker condition monitoring including breaker arcing current (I2t) and trip counter Metering: current, voltage, power, energy and frequency Oscillography: 64 samples/cycle, up to 64 records and up to 45s length Event recorder: 1024 time tagged events, with 0.5ms scan of digital inputs Data logger: up to 16 channels with user selectable sampling rate Fault locator
EnerVista SoftwareState-of-the-art software for the configuration and commissioning of GE Multilin products Graphical Logic Designer and Logic Monitor to simplify designing and testing procedures via EnerVista UR Engineer Service and update notification toolset ensures device documents and software are up-to-date via EnerVista Launchpad EnerVista Integrator providing easy integration of data in the L60 into new or existing monitoring and control systems
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