Category: Industry Trends

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

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.

Pioneering Technology & Design

The Multilin 845 is part of the 8 Series platform that provides comprehensive,

high performance protection and control for critical assets in Industrial and

utility environments.

Utilizing decades of experience in transformer protection, GE has

implemented ease-of-use features, such as single screen setup and

condition-based health monitoring and diagnostics, including integrated

transformer fault gas collection, trending, and analytics.

The Mutilin 8 Series products have an integrated protection integrity engine

that utilizes customized algorithms, providing advanced diagnostics to

ensure asset protection is not compromised.

Maintaining and safeguarding the electrical supply of an operation is critical

to ensuring maximum process availability and performance.

The 8 Series incorporates the latest cyber security features, including

password complexity, RADIUS authentication and role-based access control

(RBAC), enabling customers to comply with NERC CIP and NISTIR 7628

requirements.

Understanding that customers need protection and control devices that

must reliably operate in harsh and challenging environments, GE delivers

the Multilin 8 Series with harsh conformal coating on all printed circuit

boards and a patented environmental awareness module that provides

real-time detection of environmental factors that affect product life, as part

of its standard offering, delivering higher reliability and extended relay life.

Exceptional Quality & Reliability

Industry-leading quality, reliability and design processes are at the core of

GE’s next generation protective relay platform. With significant investments

in state-of-the-art type test facilities that simulate a complete range

of operating environments and manufactured to the IPC A-610 Class 3

standard, adhering to the highest reliability standards and ensuring rugged

performance, each device completes Environmental Stress Screening prior

to shipping from GE’s facility.

The Multilin 8 Series Protection Relays are manufactured in an ISO®

9001:2008 certified manufacturing facility.

Uncompromised Reliability & Service

Designed, manufactured and tested to industry standards at our state-of

the-art facilities, the Multilin 8 Series delivers maximum performance for

today’s most demanding environments.

In addition to the superior technology and innovative design advancements

that enable delivery of uncompromised performance and reliability, the

Multilin 8 Series is also backed by GE’s 10 year warranty plan.

Multilin 8 Series Platform Overview

From oil pumping and refining facilities, to open pit or underground mining

and processing operations, to large or small utilities, customers demand

solutions that ensure maximum process uptime, minimum operational

and maintenance efforts, and have the durability to withstand harsh

environmental conditions.

The Multilin 8 Series is GE’s next-generation protection and control relay

platform provides comprehensive protection and asset monitoring for

critical feeders, motors, generators, and transformers.

The 8 Series is designed to solve the challenges that customers face in

running their day-to-day operations including maximizing system and

process uptime, simplifying system integration and maintenance, and

extending the life of critical assets. Utilizing advanced design practices,

superior technology (elimination of all electrolytic capacitors), and state-of

the art test and manufacturing facilities, GE is raising the bar on system

performance and reliability.

With advanced communications the 8 Series integrates easily and

seamlessly into new or existing DCS/SCADA system, along with other Multilin

protection devices, providing a comprehensive solution for the end-to-end

electrical system within the operations.

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

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.

Contact I/O Module

8 out of the 10 slots in the GridBeats™ APS support contact I/O

modules.  There are several I/O variants available allowing a multitude

of I/O configurations to suit the most demanding applications. Up

to 210 contact inputs, 126 contact outputs or a mix of them are

supported when using the 80TE chassis.

Different types of outputs are also available: trip rated form-A,

form-A with coil monitor, form C, mechanically latched relays, solid

state relay, Form-C and mechanically latched relays for normal

outputs. On the contact inputs side, multiple types are also available:

grouped 5/4/2 and independent, with or without battery bank

voltage monitoringand independent, with or without battery bank

voltage monitor.

Power Supply Module

Responsible for powering up the GridBeats™ APS devices, this

module is designed for increased reliability by reducing the number

of components and removing the need for electrolytic capacitors

and batteries.

The module comes in two ranges (high and low) that fit voltage

levels from 24Vdc to 300Vdc or 88 to 265Vac. An optional redundant

power supply is available for customers when required.

AC Modules

Current and voltage inputs have been designed in alignment with

IEC61869-13 which standardize nominal values of the analog inputs

and their performance during fault conditions.

AC modules come in different variants including 4 voltages plus

4 currents, 8 currents, 8 voltages, 7 currents plus 1 voltage, with

optional sensitive current.

GridBeats™ APS supports up to three AC modules in one device,

which delivers 24 AC channels that fit eight 3-phase systems or six

3-phase with a ground input per system.  Other configurations are

also possible when combining current and voltage inputs.

Device Hardware

The GridBeats™ APS devices are fully modular, allowing easy

customization of inputs and outputs, minimum stock of spare parts

and reduced downtime when having to upgrade, retrofit or fix due

to a contingency (e.g. Failed trip/close coil that burned a contact

output).

The chassis of the device supports 10 slots for different types of

modules in the 80TE form factor. Rear terminal blocks could be pin

or ring terminal or fiber depending on the module variant.

Types of modules supported:

CPU Module

The capabilities within the GridBeats™ APS require a powerful

multicore processor with dedicated cybersecurity Trusted Platform

Module (TPM) and flexible communication interfaces.

The GridBeats™ APS CPU module supports multiple combinations of

communication interfaces including 2/4/6 Ethernet ports, Optional

serial copper ports and Inter Relay Communications (IRC) and

optional extended memory for the DFR package.