Multilin 8 Series

Motor Monitoring & Diagnostics

Integrated, cost effective motor monitoring and diagnostics are available in the Multilin 869 motor protection relay. Existing relay data is leveraged to detect electrical, thermal or mechanical abnormalities before they become critical motor failures. Motor monitoring and diagnostic capabilities include:

• Advanced monitoring and trending for condition-based status of electrical conditions that can affect motor performance
• Continuous, proactive monitoring of thermal capacity used for early identification of thermal stresses
• Electrical signal analysis and motor current signature analysis to identify common mechanical abnormalities

Transformer Monitoring & Diagnostics

Integrated electrical and dissolved gas analysis (DGA) for comprehensive transformer monitoring and diagnostics is available with the Multilin 845 transformer protection relay. The 845 provides advanced notification of potential issues before they become critical, and features detailed learned data, summarized pre/post-fault records, and integration with GE Vernova’s DGA devices to collect, trend, and analyze a transformer’s fault gases. This enables operators to minimize costly unplanned outages and equipment failures.

Generator Monitoring & Diagnostics

The Multilin 889 generator protection relay provides comprehensive generator monitoring and diagnostics, including a generator health report that provides an easy-to-read snapshot of a generator's health and operating condition. Based on graphical representation and trend values of the generator historical data, the 889 enables operators and asset managers to identify process issues and maintenance requirements before damage occurs and costly repairs are required.

Feeder Monitoring & Diagnostics

Feeder and breaker health monitoring and diagnostics are available in the Multilin 850 feeder protection relay. The 850 provides high accuracy metering and recording for all AC signals. Voltage, current, and power metering are built into the relay as a standard feature. Current and voltage parameters are available as total RMS magnitude, and as fundamental frequency magnitude and angle. The 850 also delivers comprehensive data logging, trip and close circuit monitoring elements, and a breaker arcing current element.

Cyber Security

The Multilin 8 Series platform relays feature cyber security capabilities that enable the devices to deliver full cyber security data classification by security level using statures that help operators to comply with NERC CIP guidelines and regulations.

AAA Server Support (Radius/LDAP)

Enables integration with centrally managed authentication and accounting of all user activities and uses modern industry best practices and standards that meet and exceed NERC CIP requirements for authentication and password management.

Role Based Access Control (RBAC)

Efficiently administrate users and roles within UR devices. The new and advanced access functions allow users to configure up to five roles for up to eight configurable users with independent passwords. The standard “Remote Authentication Dial In User Service” (Radius) is used for authentication.

Event Recorder (Syslog for SEM)

Capture all cyber security related events within a SOE element (login, logout, invalid password attempts, remote/local access, user in session, settings change, FW update, etc), in standard Syslog data format. This will enable integration with established SEM (Security Event Management) systems.