sales@sparecenter.com
English

GE UR6EH: Smart Feeder Protection, Grid's New Brain

2025-07-16

Introduction

The demands on modern electrical grids are constantly increasing, requiring robust, intelligent, and flexible feeder protection solutions. In this landscape, the General Electric (GE) UR6EH Universal Relay Feeder Protection System stands out as a critical component for ensuring the reliability and stability of power distribution networks, a cornerstone of the smart grid. More than just a simple relay, the UR6EH is a sophisticated digital platform that integrates advanced protection, control, monitoring, and communication functionalities, making it an indispensable asset for managing and protecting complex feeder applications and driving grid modernization efforts.


Unpacking the Versatility and Advanced Feeder Protection of the Universal Relay

The GE UR6EH is engineered to provide comprehensive feeder protection for a wide array of feeder applications, from overhead lines and underground cables to transformers and distribution automation schemes. Its "Universal Relay" designation is well-earned, reflecting its ability to consolidate multiple protection functions into a single, compact device crucial for the development of a robust smart grid.

At its core, the UR6EH offers a full suite of ANSI/IEEE protective functions. This includes, but is not limited to, vital aspects of feeder protection:

  • Overcurrent Protection (50/51, 50N/51N, 50G/51G): Essential for detecting phase, neutral, and ground faults, providing both instantaneous and time-delayed tripping capabilities for effective feeder protection. The UR6EH's advanced algorithms ensure selective tripping, minimizing the impact of faults on the smart grid.

  • Directional Overcurrent (67/67N): Crucial for looped systems and distributed generation applications within the evolving smart grid, enabling the relay to determine the direction of fault current flow and isolate faults more effectively, a key element of reliable feeder protection.

  • Under/Over Voltage Protection (27/59): Guards against abnormal voltage conditions that can damage equipment or destabilize the grid modernization initiatives.

  • Under/Over Frequency Protection (81U/81O): Important for maintaining grid stability, especially during load shedding or islanding operations in the context of a smart grid.

  • Recloser Control (79): Facilitates automatic reclosing operations after transient faults, improving service reliability in feeder networks.

Feeder Protection

Beyond Protection: Control, Monitoring, and Communication Capabilities in the Smart Grid

The GE UR6EH transcends traditional protection relays by integrating extensive control, monitoring, and communication capabilities, transforming it into a smart device for grid management and a vital component of the smart grid infrastructure, ensuring advanced feeder protection.

Integrated Control: The UR6EH is not just a passive monitor; it actively participates in feeder management within the smart grid. It features programmable logic capabilities that allow users to implement custom control schemes. This includes breaker control (open/close), recloser operations, and even complex interlocking sequences for enhanced feeder protection. The integrated human-machine interface (HMI) on the front panel provides local control and status indication, enabling operators to interact with the device directly, a key aspect of grid modernization.

    Conclusion

The GE UR6EH Universal Relay Feeder Protection System is more than just a protective device; it is a highly integrated and intelligent solution for the complex demands of modern feeder management and a vital building block of the smart grid. Its comprehensive suite of feeder protection functions, combined with advanced control, monitoring, and state-of-the-art communication capabilities, including IEC 61850 and robust cybersecurity, makes it an indispensable asset for utilities and industrial plants striving for optimal grid reliability, efficiency, and safety, driving forward grid modernization efforts. By providing critical data, enabling advanced automation, and ensuring rapid fault isolation, the UR6EH plays a pivotal role in maintaining the resilience and performance of power distribution networks in an ever-evolving energy landscape, securing the foundation of the smart grid through advanced feeder protection.

Smart Grid Smart Grid Smart Grid Smart Grid Smart Grid Universal Relay Universal Relay Universal Relay Universal Relay Universal Relay Universal Relay Grid Modernization Grid Modernization Grid Modernization Grid Modernization Grid Modernization IEC 61850 IEC 61850 IEC 61850 IEC 61850 IEC 61850 IEC 61850 IEC 61850 IEC 61850 IEC 61850 IEC 61850 IEC 61850 IEC 61850 IEC 61850 IEC 61850 IEC 61850 IEC 61850 IEC 61850 IEC 61850

If you want to more details，please contact me without hesitate.Email：sales@sparecenter.com 

Get the latest price? We will reply as soon as possible (within 12 hours)

Copyright By © Spare Center

Sparecenter sells new and surplus products and develops channels for purchasing such products. This website has not been approved or recognized by any of the listed manufacturers or trademarks. Sparecenter is not an authorized distributor, dealer, or representative of the products displayed on this website. All product names, trademarks, brands, and logos used on this website are the property of their respective owners. The description, explanation, or sale of products with these names, trademarks, brands, and logos is for identification purposes only and is not intended to indicate any association with or authorization from any rights holder.
("[type='submit']")