The Multilin™ 845 Transformer Protection System is a member of the Multilin 8 Series protective relay platform and has been designed for the protection, control and management of 2- and 3-winding power and distribution transformers in both utility and industrial applications.

The Multilin 845 provides advanced functionality for a wide range of transformer applications delivering high-speed protection, customizable programmable logic, advanced transformer monitoring and diagnostics, and support for the latest communications protocols for easy integration into new or existing power systems.

The Multilin 845 delivers comprehensive transformer health monitoring, diagnostics, and reporting with integrated connectivity to composite and multiple gas transformer DGA solutions such as, GE’s Kelman Transformer Monitoring devices, delivering actionable analytics for asset optimization and transformer life extension.

Key Benefits

• Comprehensive transformer protection including fast operating differential protection, unique CT saturation and directional detection
• Advanced transformer monitoring, diagnostics and disturbance recording extending asset life
• Integrated protection & DGA for continuous transformer monitoring
• Integrated arc flash detection using light sensors to reduce incident energy and equipment damage
• High-end cyber security tools such as AAA, Radius, RBAC, and Syslog enabling NERC CIP requirements
• Draw-out design simplifies testing, commissioning and maintenance
• Optional Wi-Fi minimizes system configuration and facilitates safe relay programming and diagnostic retrieval
• Monitored environmental conditions helps reduce system downtime
• High flexibility for customized protection and control logic