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N60 Network Stability and Synchrophasor Measurement System
The N60 Network Stability and Synchrophasor Measurement System is a flexible device intended for the development of load shedding, remedial action, special protection schemes and wide area monitoring and control. Like no one device before the N60 shares real time operational data to remote N60s so the system can generate intelligent decisions to maintain the Power System Operating. N60
Key Benefits
  • Complete protection for small to medium sized generators
  • Complete IEC 61850 Process Bus solution providing resource optimization and minimizing total P&C life cycle costs
  • Combined generator and transformer protection
  • Advanced automation capabilities for providing customized protection and control solutions
  • Robust network security enabling Critical Infrastructure Protection through user command logging, and dual permission access control
  •  
  • Application flexibility with multiple I/O options and programmable logic (FlexLogic™)
  • High-end fault and disturbance recording eliminating the need for redundant recording devices
  • Ambient temperature monitoring with alarming when outside temperature exceeds upper thresholds
  • High-speed peer-to-peer communications allowing reduction of relay to relay wiring and associated installation costs
  • Embedded IEC61850 Protocol
  • Applications    
  • Stand-alone breaker monitoring and control
  • Multiple breaker configuration control including
  • Breaker-and-a-Half and Ring Bus
  •  
  • Automatic Bus Transfer scheme using a single device
  • As part of a distributed bay controller

  •   Key Features    
     
  • Underfrequency, overfrequency, and rate of change of frequency (df/dt)
  • Out-of-step tripping and power swing blocking
  •  
  • Synchrocheck
  • Overvoltage, undervoltage
  • FlexMath for performing automated network control
  •   Protection & Control
     

    The N60 incorporates a wide range of protection and control functions that are typically required for special protection schemes. These protection and control elements along with the use of the advanced Flexlogic, FlexMath, and FlexElements, allow for creating automated system controls for customized special protection schemes.

    N60 Block Diagram
     
    The N60 can monitor and control up to 5 power system circuits
     
      Key Features
     
  • Synchrophasor Recording – 25MB memory with multiple recording and triggering options, 46 configurable channels
  • Metering – current, voltage, power, energy frequency
  • Data Logger – Up to 16 channels with sampling rate up to 1 sample/cycle
  • Setting Security Audit Trail for tracking changes to N60 configuration
  •  
     
    The N60 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.
     
     
     
    Flexlogic™ is the powerful UR-platform programming logic engine that provides the ability of creating customized protection and control schemes based on information measured locally by the N60 and received from remote N60s sent to it over the communications network. With Flexlogic™, the N60 can use the status of measured inputs, along with the output of the protection elements, FlexElements™ and FlexMath™ summators, in Boolean logic equations to perform automated function for customized special protection schemes.
     
    The N60 contains Flexlogic™ and FlexMath™ equations that allow for creating automated wide area protection and control schemes, remedial action schemes, and other special protection applications.
     
      Key Features
     
  • Networking interfaces – 100Mbit Fiber Optic Ethernet, RS485, RS232, RS422, G.703, C37.94
  • Multiple Protocols - IEC61850, DNP 3.0 Level 2, Modbus RTU, Modbus TCP/IP, IEC60870-5-104, Ethernet Global Data (EGD)
  • Direct I/O – secure, high-speed exchange of data between URs for Direct Transfer Trip and pilot-Aided schemes
  • Embedded Managed Ethernet Switch with 4 - 100 Mbit Fiber optic ports and 2 copper ports
  •  
     

    The N60 has the most advance communications capabilities for sharing information about the power system with other local or remote devices in the protection and control industry. Using direct Peer-to-Peer communications for sharing information with other N60s distributed across the network, and using the many available SCADA protocols, the N60 can provide the complete solution for carrying out special protection schemes and SCADA monitoring and control functions. The N60 supports the most popular industry standard communications protocols enabling easy, direct integration into SCADA systems.

     
  • IEC 61850
  • DNP 3.0
  • Ethernet Global Data (EGD)
  • IEC 60870-5-104
  • Modbus RTU, Modbus TCP/IP
  •  
     
     
    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

     
     
    Use the N60 with integrated IEC 61850 to lower costs associated with generator protection, control and automation. GE’s leadership in
    IEC 61850 comes from thousands of installed devices and follows on years of development experience with UCA 2.0.
     
      The N60’s IEC 61850 Process Bus module is designed to interface with the Multilin HardFiber System, allowing bi-directional IEC 61850 fiber optic communications. The HardFiber System is designed to integrate seamlessly with the existing Universal Relay applications, including protection functions, FlexLogic, metering and communications. Learn More
     
     
    The EnerVista™ Suite is an industry-leading set of software programs that simplifies every aspect of using the N60 relay. The EnerVista suite provides all the tools to monitor the status of your system, maintain your relay, and integrate information measured by the N60 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.

    Fully Compatible with GE's Multlilin HardFiber System - Provides support for GE's IEC 61850 HardFiber Process Bus Solution:
    - Complete IEC 61850 Process Bus Solution providing resource optimization and minimizing total P&C lifecycle costs.
    Learn More

    Ambient Temperature Monitoring:
    - Provides alarms when the ambient temperature exceeds hot extreme
    Security Enhancements - Enabling NERC CIP compliance:
    - Dual Permission access requiring live permission from both the user and from SCADA operators before settings can be changed or commands can be given to the relay
    - Logging of user commands in the security audit trail relay - creates a record and sequence of events for troubleshooting and security auditing
    Breakthrough on Synchrophasors allows PMU transmission through IEC 61850 GOOSE messages and direct analog outputs
    Two new concepts “GOOSE and Direct Synchrophasors” allow the Multilin N60 to concentrate synchrophasors from up to 4 different local devices using IEC 61850 GOOSE and retransmit them to remote substations through direct I/O using existing communications channels (64/128kbps).
    - “GOOSE Synchrophasor” uses IEC 61850 GOOSE as the transmission protocol for sending PMU data within the substation
    - “Direct Synchrophasor” uses inter-relay communication modules (direct I/O) and existing low-bandwidth communication channels to transmit synchrophasor data to and from remote substations. (firmware version 5.70)



     
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