The Multilin™ 339 is a member of the Multilin 3 Series protective relay platform and has been designed for the protection, control and management of medium voltage motors in industrial applications. The Multilin 339 delivers unparalleled protection, control, diagnostics and communications in an industry leading drawout construction. Providing simplified setup configuration through the use of the Motor Settings Auto-Configurator, advanced graphical diagnostics with the Motor Health Report and support for multiple communication protocols including IEC® 61850, the 339 Motor Protection System provides comprehensive motor protection for most small and medium sized motors.
Key Benefits
Cost-effective and flexible protection and control device for motors
Field-proven algorithms and reliable protection to avoid unwanted trips or under-protection
Ease of use and standardization with simplified motor setup and universal CT inputs
Enhanced Thermal Model including RTD and current unbalance biasing
Environmental monitoring system to monitor operating conditions and plan preventative maintenance
Time stamped event reports, waveform capture, motor start and motor trending
Powerful security and hierarchical password control for centralized management
Reduced wiring via remote RTD’s using the RMIO module and support for 3 internal RTDs
Advanced power system and switchgear diagnostics
Customized motor overload curve Flex curves
Detailed Motor Health Report with critical data
Switchgear diagnostics and easy troubleshooting by CT/VT supervision, trip/close circuit supervision and LED/IO Test Mode
Drawout design simplifies testing, commissioning and maintenance, thereby increasing process uptime
Flexible communications with multiple ports and protocols allowing seamless integration
Robust design exceeding industry standards, with Automotive Grade components and advanced testing procedures such as accelerated life cycle testing
Migration of legacy MII Family relays to the 3 Series platform
Intuitive configuration software and user-friendly logic configuration tool
Applications
Protection and control of LV or MV motors of various sizes
Protection of pumps, conveyors, fans, compressors, and others in process or manufacturing industries.
Applications requiring fast and secure communications
Harsh environments requiring protection against corrosive chemicals and humid environments
Protection & Control
The 339 motor protection system is designed to protect and manage various sizes of LV and MV asynchronous motors motors and driven equipment. Flexible and powerful, the 339 provides advanced motor protection, control and monitoring in one integrated, economical drawout or non-drawout design. The 339 contains a full range of self contained protection and control elements as detailed in the Functional Block Diagram and Features table.
Block Diagram and Features table.
