Multilin 869 Protective relay
Multilin 869
Comprehensive Motor Protection and Management
he Multilin 869 relay is a member of the Multilin 8 Series protective relay platform and has been designed for the protection, control and management of medium and large induction and synchronous motors.
The 869 is equipped with an integrated synchronous motor protection module for protection and control of synchronous motors.
The Multilin 869 provides advanced functionality for various types of applications such as high-speed protection, extensively customizable programmable logic, advanced motor monitoring and diagnostics, and flexible configuration capabilities.
Advanced communications of the 8 Series platform allows easy integration into process and electrical control systems for smoother asset monitoring and control.
To simplify the migration and upgrade from an existing SR 469 protection relays, retrofit have been developed which significantly simplify the upgrade process.
Multilin 869 Overview
The Multilin 869 Motor Protection System is a protection device designed for the management, protection and control of medium to large horsepower motors. The 869 provides comprehensive protection and control of various types of motors with different loads they run.
With a fast protection pass, running every 1/8th of a cycle, the 869 relay provides faster current, voltage, power and frequency protection elements ; helping reduce stress on assets. The Multilin 869 supports the latest standard communication protocols, including IEC 62439/PRP and IEC 61850 Ed2 ; facilitating easy integration into new or existing SCADA/DCS networks.
Key Benefits
Comprehensive motor protection for medium and large induction and synchronous motors
User-configurable Single Line Drawing on color display for local control, system status, and metering
Advanced motor diagnostics with comprehensive fault and disturbance recording
Integrated arc flash detection using light sensors supervised by overcurrent to reduce incident energy and equipment damage
Advanced cyber security including features such as AAA, Radius, RBAC, and Syslog helps enable NERC® CIP requirements
Draw-out design simplifies testing and increases process uptime
Supports the latest in communication protocols and networking technology, enabling seamless system integration and interoperability
Optional Wi-Fi connectivity minimizes system configuration and facilitates safe relay programming and diagnostic retrieval
Applications
Wide range of motor applications for oil & gas, mining & metals, cement, and wastewater
Comprehensive protection and management of medium to large motors; two-speed, VFD-driven, cyclic loading and synchronous motors
Specific and advanced features for high inertia loads and reduced-voltage starting motors
Stator and rotor protection of medium to large synchronous motors
Synchronous motor DC field excitation application control
Advanced predictive motor diagnostics and motor health visualization
