The Universal Relay family of protection and control products are built on a common modular platform. All UR products feature high performance protection, expandable I/O, integrated monitoring and metering, high speed communications, and extensive programming and configuration capabilities. The UR is the basis of simplified power management for the protection of critical assets.
Modular construction - Plug & play modules for maintenance cost savings & simplification
Complete IEC 61850 Process Bus solution
Cost effective and flexible information access
Large HMI and annunciator for local monitoring & control
Common platform - Reduced training time and drafting costs
High speed communications to reduce wiring and installation costs
Sequence of event reports, oscillography, data logging, IRIG-B time synchronization
Enhanced CT/VT module diagnostics
Ambient temperature monitoring with alarming
Robust network security based on NERC
Generation, transmission, distribution, motor
protection, monitoring, metering & control
Utility substation and industrial plant automation
Digital fault recording and sequence of event recording
Predictive maintenance through data analysis and trending
Advanced protection, control & automation
URPlus delivers high-end solutions for complex protection, control & automation applications
Digital Inputs: up to 96 (UR) & 115 (URPlus), single case configuration
Digital Outputs: up to 84 (UR) & 60 (URPlus), single case configuration
Solid state outputs for fast tripping
Transducer I/Os (RTD, dcmA)
Dual power supply
The UR incorporates the most complete and unique protection algorithms to provide unparalleled security and system uptime. The UR selector guide (in the following pages) lists all the protection elements found in each relay.
To support the protection and control functions of the UR, various types and forms of I/O are available (specific capabilities are model dependent). Supported I/Os include:
CTs and VTs
Up to 24 analog current transformer (CT) and voltage transformer (VT) signals can be configured to monitor AC power lines. Both 1 A and 5 A CTs are supported. Special function modules are available including: a CT module with sensitive ground input to provide ground fault protection on high-impedance grounded systems; and a high impedance fault detection module that provides fast and reliable detection of faults caused by downed conductors.
Digital I/O
Up to 96 digital inputs (with utility voltage rating up to 250V), and up to 64 digital outputs, are available and can be used to monitor and control a wide range of auxiliary equipment found within a substation or other protection application. Types of digital I/O cards include Trip rated Form-A, Form-C, Fast Form C, Latching and Solid State with or without dc voltage, current monitoring and isolated inputs (with auto burnish feature). Mechanically latching outputs can be used to develop secure interlocking applications and replace mechanical switches and lockout relays. Form A digital outputs have activation speeds of less than 4ms and both wet and dry contacts are supported. Solid state output modules with high current breaking capability, fast tripping and reset time are ideal for direct tripping applications.
Transducer I/O
RTDs and DCmA cards are available to monitor system parameters such as temperature, vibration, pressure, wind speed, and flow. Analog outputs can be used for hardwired connections from the Controller to a SCADA system, to a programmable logic controller (PLC), or to other user
The UR is the single point for protection, control, metering, and monitoring in one integrated device that can easily be connected directly into DCS or SCADA monitoring and control systems like Viewpoint Monitoring as shown.
Synchrophasors in select products
Oscillography - up to 64 records
Event Recorder - 1024 time tagged events, with 0.5ms scan of digital inputs
DataLogger - up to 16 channels with user selectable sampling rate
Fault Locator and User Programmable Fault Reports
Breaker condition monitoring including breaker arcing current (I2t)
Metering - current, voltage, power, power factor, frequency.
The UR includes 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.
Digital fault recorder summary with the latest information on the events, faults, transients and disturbances.
Control screen for the preconfigured bay with breaker & disconnect control in multiple pages using dedicated pushbuttons in the front panel.
The UR incorporates advanced automation features including powerful FlexLogic™ programmable logic, communication, and SCADA capabilities that far surpass what is found in the average protection relay. Each UR can be seamlessly integrated with other UR rleays for complete system protection and control.
Flexlogic allows for creating customized logic schemes to fit most protection and control applications.
Multiple Protocols - IEC 61850, DNP 3.0 Level 2, Modbus RTU, Modbus TCP/IP, IEC 60870-5-104, Ethernet Global Data (EGD)
Direct I/O – (secure, high-speed exchange of data between URs for Direct Transfer Trip and I/O Extension applications)
The UR provides advanced commun-ications technologies for remote data and engineering access, making it easy and flexible to use and integrate into new and existing infrastructures. Direct support for fiber optic Ethernet provides high-bandwidth communications allowing for low-latency controls and high-speed file transfers of relay fault and event record information. The available redundant Ethernet option provides the means of creating fault tolerant communication architectures in an easy, cost-effective manner without the need for intermediary communication hardware. The UR supports the most popular industry standard protocols enabling easy, direct integration into DCS and SCADA systems.
IEC 61850
DNP 3.0
Ethernet Global Data (EGD)
IEC 60870-5-104
Modbus RTU, Modbus TCP/IP
SNTP, TFTP, HTTP
In addition to providing high-speed connectivity directly to your Universal Relay, the MultiLink UR Switch module provides an additional 4 Fiber Ethernet ports, for connection to other relays in the system as well as upstream connectivity. It also provides 2 RJ-45 copper Ethernet ports which can be used to connect local devices such as PCs, meters, or virtually anything else in the system.
The UR Switch provides a simple way to add fully-managed Ethernet networking to your relays and devices without the need for additional hardware or a dedicated communications cabinet.
The UR Switch includes all the management and features that come with all MultiLink managed switches, and can be easily integrated into a network that has other Ethernet switches. When used in a ring topology with other UR switch modules or MultiLink switches, the UR Switch can be configured to use MultiLink’s Smart RSTP feature to provide industry-leading network recovery for ring topologies, at a speed of less than 5ms per switch.Learn More
The HardFiber Process Bus System represents a true breakthrough in the installation and ownership of protection and control systems, by reducing the overall labor required for substation design, construction, and testing. This innovative solution addresses the three key issues driving the labor required for protection and control design, construction and testing:
Every substation is unique making design and drafting a one-off solution for every station
Miles of copper wires needs to be pulled, spliced and terminated
Time consuming testing and troubleshooting of thousands of connections must be performed by skilled personnel
The HardFiber System was designed to address these challenges and reduce the overall labor associated with the tasks of designing, documenting, installing and testing protection and control systems. By specifically targeting copper wiring and all of the labor it requires, the HardFiber System allows for greater utilization and optimization of resources with the ultimate goal of reducing the Total Life Cost (TLC) for protection & control. Learn More
The EnerVista Suite is an industry-leading set of software programs that simplifies every aspect of using the UR. The EnerVista suite provides all the tools to monitor the status of the protected asset, maintain the relay, and integrate information measured by the UR into DCS or SCADA monitoring systems. Convenient COMTRADE and Sequence of Events viewers are an integral part of the UR Setup software included with every UR relay, to carry out postmortem event analysis to ensure proper protection system operation.Learn More
Access Control
Multilin devices and relays are designed with simple but powerful security to enable reliability and compliance for virtually any project or implementation. With support for multi-level permissions and multi-factor supervisory controls, Multilin devices can help you manage the integrity of your system during commissioning, testing, implementation, and beyond.
The UR Family provides separate authentication for settings and commands to the system. In addition, as discrete authentications for local and remote access, it also provides a supervisory control factor that can lock or unlock a device for configuration changes and other modifications.
Intrusion Detection
Multilin’s family of protection and control products can also help enable your security perimeter and intrusion detection programs. By providing essential alarming and logging of critical events, Multilin devices can help you detect potential breaches within your system and allow you to respond quickly and effectively. Specifically, unsuccessful access attempts are logged, alarmed, and lead to potential attackers being locked out. This ensures the reliability of your system during questionable activity.control factor that can lock or unlock a device for configuration changes and other modifications.
Auditing and Reporting
With the Security Audit Trail reporting feature and support for Event logging of key
activities such as configuration changes, Multilin devices can help ensure device and
protection system integrity, and perform forensic auditing of activities and changes
for compliance.
G60 - Medium to Large Generators
Provides comprehensive primary and backup protection for medium and large generators. Learn More
Including/covering 100% Stator and Rotor (Field) ground fault detection.
T60 - Medium to Large Transformers
A fully featured transformer protection system suitable for power transformers of any size that require current differential function. Learn More
D30 - Backup Distance Protection
The cost effective choice for the primary protection of sub-transmission systems or backup protection of transmission systems. Learn More
L30 - Sub-Transmission Line Current Differential Protection
a cost effective phase segregated line current differential system, intended to provide primary protection for MV cables and two-three terminal sub-transmission lines or backup protection to transmission lines. Learn More
B30 - Multiple Sections Low Impedance Busbar Protection
The B30 is a cost effective-advanced protection system that fits Busbars with up to 06 circuits and two protection zones. The B30 provides advance elements that make the B30 extremely fast and secure protection. Learn More
Protection & Control 
