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High-Speed Falling Conductor Protection

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GridNode高速下降导体保护

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的GridNode高速下降导体保护通过提供增强的可靠性,速度和当今分销网络所需的性能来实现导线监控和保护的进化。

Key Benefits

  • Reliablyidentify broken overhead lines and trip corresponding breakers or block a recloser under 500ms prior to the conductor touching the ground
  • 轻松部署无需协调现有的保护设置
  • Minimize customer impactwith coordinated operation to isolate the broken line
  • Increased flexibility通过适应高级渗透率的能力
  • Prolong asset life通过防止由不必要的重点造成的潜在损害
  • Increased reliability能力检测破碎的导体low load branches as well as feeder end
  • 增强的可靠性通过实时自适应设置
  • Low implementation costsby leveraging existing digital protective relays
Explore the Solution
概述
建筑学
Services
Components

使用互动应用发现GE的解决方案

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

  • 通过快速检测和隔离破碎的桥接线来提高安全性
  • 由下导体引起的火灾点火风险降低
  • 不必要的网络重新损坏造成的损坏
  • 通过最大限度地减少通过协调保护中断的客户数量来提高客户可靠性
  • Ability to accommodate a high and growing number of distributed energy resources on your network without impacting broken falling conductor protection
正常状态

正常状态

传统保护

破碎的下降指挥

破碎的下降指挥

GridNode高速下降导体保护

Benefits

  • 在导体触摸地面之前在500ms下运行
  • Up to 8 times better sensitivity at detecting broken conductors than conventional I2/I1 methods for distribution networks
  • 工作在高渗透渗透的地区
  • 现有保护设备不需要协调
  • 可扩展到多个馈线及超出变电站,并能够隔离和协调故障线部分的行程
Broken Down Conductor

Broken Down Conductor

Down Conductor Technology

Benefits

  • 在某些情况下检测导体的能力

缺点

  • Safety and fire concerns as conductor has already touched the ground
  • 适用性取决于地面类型

建筑学

GE的GridNode高速下降导体保护解决方案是可扩展系统,可在分配或传输系统中提供可靠和快速地检测破碎的导线。该解决方案可以连接到变电站内的器件以及沿馈线。

architecture diagram

基于变电站的解决方案

  • Increased detection capabilities on low load branches
  • Ability to coordinate and sectionalize the line closest to the fault
  • Requires V&I measurements from IEDs
  • Supports up to 10 Feeders
  • Vendor agnostic
  • 利用标准通信协议

Substation + Line Devices Solution

  • Increased detection capabilities on low load branches
  • Ability to coordinate and sectionalize the line closest to the fault
  • Requires PMU data for connected IEDs
  • Supports industrial standard communications (fiber optic, radio (licensed or unlicensed) or cellular

Services

GE’s Advanced Application Services team provides the following engineering and consulting services as part of the High-Speed Falling Conductor Protection solution.

CONSULTING
PMU placement assessment and support
Deployment strategy
COMMUNICATIONS
Network and communications system design
Hardware specification
工程
系统配置;设置开发
网络安全
FACTORY TESTING
工厂验收测试包括硬件循环(HIL)测试和验证
INSTALLATION & SITE INTEGRATION
Field services; Site integration services
通信,网络和I / O测试
测试和调试
Site acceptance testing and performance validation
培训和支持
Master service agreement to help maintain the accuracy of the operation following network topology changes

Components

GE’s GridNode High-Speed Falling Conductor Protection Solution includes the following:

GPG控制器

GridNode高速下降导体保护Solution - Hardware specifications

  • Certification: IEC 61850-3, IEEE 1613, CE, FCC Class A, UL, CCC
  • Mounting: 2U/19” Rack mount
  • 系统设计:无风扇,没有内部布线
  • OS Support: Windows and Embedded RTOS VxWorks for critical real time
  • Power Consumption: 19W/220VAC or VDC (Typical)
  • Power Supply: Redundant 100 ~ 240 VAC (47 ~ 63 Hz) DC: 100 ~ 240 VDC DC: 48VDC with isolation protection
  • PRP & HSR Ethernet redundancy
  • Two expansion slots to increase serial and Ethernet port types and quantity
GPG控制器

GridNode HFCP HMI

GridNode HFCP HMI

GridNode HFCP Configurator

GridNode HFCP Configurator

Solution Components

UR

保护继电器

S20

Communication Switches

RT430.

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