GridNode High-Speed Falling Conductor Protection
GE’s GridNode High-Speed Falling Conductor Protection provides a reliable solution to detect and isolate broken overhead line conductors using secure wide-area measurements. When an overhead power line breaks, the energized conductor falls to the ground or surrounding objects causing a high-impedance fault and/or arcing. For over 20 years, the industry has relied on negative-sequence current (I2/I1) principles to detect a broken conductor. However, with the increasing penetration of Distributed Energy Resources(DERs) and depending on the number of loads and/or presence of single-phase loads connected to a line, this solution is no longer an efficient method of protection. GE’s GridNode High-Speed Falling Conductor Protection offers an evolution to falling conductor monitoring and protection by delivering enhanced reliability, speed, and performance needed for today’s distribution networks. To learn more about GE’s GridNode High-Speed Falling Conductor Protection (HFCP), read our 2-part interview series as we answer important questions about the risks of broken conductors and the advantages of HFCP. We also explore HFCP system architecture and study the testing phases of this solution. Key Benefits
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GE’s GridNode High-Speed Falling Conductor Protection provides a reliable solution to detect and isolate broken overhead line conductors prior to the conductor touching the ground for both transmission and distribution networks. This is a substation centric based solution that is based on the rate of change of impedance.
Typical Broken Falling Conductors take 1.3 seconds to touch the ground on a distribution system.
Network Benefits
Normal State
Traditional Protection
Broken Falling Conductor
GridNode High-Speed Falling Conductor Protection
Benefits
Broken Down Conductor
Down Conductor Technology
Benefits
Drawbacks
Architecture
GE’s GridNode High-Speed Falling Conductor Protection Solution is scalable system that provides reliable and fast detection of broken falling conductors in the distribution or transmission system. The solution can connect to devices inside the substation as well as along the feeder.
Substation Based Solution
Substation + Line Devices Solution
Services
GE’s Advanced Application Services team provides the following engineering and consulting services as part of the High-Speed Falling Conductor Protection solution.
Components
GE’s GridNode High-Speed Falling Conductor Protection Solution includes the following:
GPG Controller
GridNode High-Speed Falling Conductor Protection Solution - Hardware specifications
GridNode HFCP HMI
GridNode HFCP Configurator
Solution Components
Protective Relays
Communication Switches
Time synchronization clock