GE / Alstom 850 Feeder Protection System

GE / Alstom 850 Feeder protection relay systems provide advanced protection with flexibility, programmability and communications for maximum system reliability. Our highly skilled engineers and technicians understand distribution feeder principles and the sources of faults on overhead and underground distribution feeders. They apply their knowledge to the design and manufacture of some of the most advanced protection relays and systems in the world.
Major faults occurring in the distribution system such as arc flash, incipient cable splice fault, high impedance fault and others, must be sensed quickly and isolated immediately to prevent hazards to the general public and personnel. Learn how GE?s 8 Series, 350 and P40 Agile solutions provide early fault detection and warning in this spotlight application.

The Multilin 850 relay is a member of the Multilin 8 Series protective relay platform and has been designed for the management, protection and control of feeder applications. The Multilin 850 is an integrated, one box solution, used to provide comprehensive protection, control and monitoring of underground and overhead single or dual feeders in industrial and utility power networks.

The GE / Alstom Multilin 850 Feeder protection relay is also an ideal choice for bay control applications, with features including 12 switchgear control elements, a large color graphical display that supports configurable single line diagrams, an integrated annunciator panel, and 20 user configurable virtual pushbuttons.
With support for industry leading communications protocols and technologies, the 850 provides easy integration into new or existing SCADA or DCS for enhanced situational awareness. To simplify the migration and upgrade from an existing SR 750/760 or 735 protection relays, retrofit kits have been developed which significantly simplify the upgrade process.

The Multilin 850 is an advanced feeder protection relay that provides high performance protection, high density I/O, extensive programmable logic and flexible configuration capabilities. With protection and control logic, the 850 allows for simplified coordination with upstream and downstream disconnect devices. The Multilin 850 supports both industrial and distribution utility feeders. Dual feeders (850D) and multi feeder (850P) in electrical applications are also supported.

As part of the 8 Series platform of relays, the Multilin 850 shares the advanced communications and cyber security features and EnerVista software suite that is common to the platform. Learn more about the?Multilin 8 Series platform.

Comprehensive feeder protection

One box solution with advanced logic and configuration flexibility to provide comprehensive primary or backup protection, control and monitoring for 2 feeders or for feeders with 2 sets of voltage inputs.
breaker diagnostics with high-end fault and disturbance recording
Integrated arc flash detection using light sensors supervised by overcurrent to reduce incident energy and equipment damage.
High-end cyber security such as AAA, Radius, RBAC and Syslog, enabling NERC CIP requirements.
Draw-out design simplifies testing, commissioning and maintenance, increasing process uptime.
Optional Wi-Fi connectivity minimizes system configuration and provides safe relay programming and diagnostic retrieval.
Patented environmental monitoring, providing visibility to changes in environmental conditions that can affect relay life.

?Explore the comprehensive range of GE feeder protection with us!