GE Multilin™ 845 Transformer Protection System

Comprehensive Protection & Management

for Power & Distribution Transformers

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.

Advanced communications of the 8 Series platform allows easy integration into process and electrical

control systems for smoother asset monitoring and control.

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 for small, medium and large transformers

• Advanced transformer diagnostics and disturbance recording extending asset life

• Integrated protection and DGA device operation for advanced warning of potential issues before they

become critical transformer faults or failures

• High-end cyber security tools such as AAA, Radius, RBAC, and Syslog helps enable NERC® CIP requirements

• Draw-out design simplifies testing, commissioning and maintenance, thereby increasing process uptime

• Optional Wi-Fi connectivity 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

Applications

• Primary and back-up protection and management of small, medium and larger power and

distribution transformers, autotransformers and reactors

• Designed for Utility (Transmission & Distribution) or Industrial applications

• Integrated transformer protection, monitoring diagnostics and transformer health visualization