GE MULTILIN 850 Feeder and Bay Controller Solutions for Industrial and Utility Applications

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 used to provide primary (main) or backup protection for underground

and overhead single or dual feeders for utility and industrial power networks.

With 11 Switchgear control elements, fully configurable Single Line Diagram on a large

color graphical display, 36 alarm integrated annunciator panel and 20 push buttons

makes the 850 the ideal choice for bay control and protection as a “One Box Solution”.

Designed with advanced communications options and detailed asset monitoring

capabilities, the Multilin 850 provides advanced functionality, including high-performance

protection, extensive programmable logic and flexible configuration capabilities. 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.

Key Benefits

• One Box Solution with advanced logic and configuration flexibility, providing primary

or backup protection for up to 2 feeders or feeders with 2 sets of voltage inputs

• User configurable Single Line Diagram on color display for local control, system status,

and metering

• Advanced breaker 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 features including AAA, Radius, RBAC, and Syslog enabling

NERC® CIP requirements

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

process uptime

• Patented environmental monitoring, providing visibility to changes in environmental

conditions that can affect relay life

Applications

• Single/dual feeder applications for utility, oil & gas, mining & metals, process industry,

commercial, and waste water segments

• Fast protection pass enabling load shedding schemes

• Reliable automatic bus transfer & autoreclose schemes

• Bay controller for wide range of switchgear applications

• High speed fault detection for arc flash mitigation

Multilin 850 Overview

The Multilin 850 is an advanced feeder protection device designed

for high performance, protection, control and monitoring of incoming

and outgoing feeders.

With up to 57 digital inputs and 22 digital outputs in a compact box,

the 850 provides a versatile and cost effective control, protection,

measurement & monitoring solution. Flexelements and Flexlogic

enable users to customize schemes to meet a variety of applications.

From dual main to main-standby configurations, the

Multilin 850D delivers a more economical and reliable solution,

enabling customers to reduce hardware requirements and simplify

device integration, including safe and secure Wi-Fi communications

for system configuration and diagnostics.