Description

The UR 9NV is engineered to provide comprehensive protection, control, monitoring, and supervision for power systems across various applications, including generation, transmission, distribution, substations, and industrial environments. Its modular design ensures high performance and flexibility, making it suitable for a wide range of power asset management tasks.

Key Features and Specifications

Protection and Control

• Line Current Differential Protection: Fast and segregated line current differential with adaptive restraint, providing precise fault detection and isolation.
• Phase Segregated Protection: Includes phase segregated line current differential and ground differential protection for enhanced fault discrimination.
• Distance Protection: Offers phase distance protection with five independent zones and adjustable compensation settings for accurate fault location.
• Breaker-and-Half Support: Supports single-pole tripping and breaker-and-a-half configurations with independent current source support for flexible system design.
• Generator Protection: Comprehensive protection for generators, including 100% stator ground fault detection and field ground protection to safeguard critical equipment.

Monitoring and Metering

• Synchrophasors: Optional support for IEEE C37.118 (2011) and IEC 61850-90-5 synchrophasors for advanced system monitoring.
• Advanced Recording: Equipped with a 1024-event recorder, configurable waveform capture, and a data logger for detailed event analysis and historical data review.
• Fault Locator: Integrated fault locator with user-programmable fault reports to facilitate quick fault analysis and resolution.
• Breaker Monitoring: Monitors breaker conditions including arcing current (I2t), re-strike events, and flashovers to ensure reliable breaker performance.

Communications

• Robust Connectivity: Features up to 8 HardFiber Bricks for high-speed and reliable communication.
• Redundant Architecture: Ensures system dependability and security with a redundant design that maintains operation during component failures.
• Ethernet Ports: Three Ethernet ports support purpose-specific LANs, reducing latency and improving communication efficiency by isolating critical traffic from heavy network loads.

Applications

• Power Asset Management: Ideal for protection, control, monitoring, and supervision of power assets in diverse environments.
• Substation Automation: Suitable for utility substation automation and industrial plant control.
• Fault and Event Recording: Capable of digital fault recording and Sequence of Event (SOE) recording for precise fault analysis and system diagnostics.
• Predictive Maintenance: Utilizes data analysis and trending to support predictive maintenance strategies, enhancing system reliability and performance.