Power lines are perpetually exposed to the elements, facing severe challenges from extreme conditions such as lightning strikes, torrential rains, and ice and snow. When faults occur, traditional location methods often struggle to pinpoint the exact fault location quickly due to complex terrain and adverse weather, leading to delayed repairs and significantly impacting power restoration efforts.

The Challenges of Traditional Fault Location

· Significant environmental challenges: Complex terrain such as mountainous and forested areas makes manual line inspections extremely difficult;

· Signal capture challenges: Fault characteristics are susceptible to interference during transmission;

·     Low positioning accuracy: Traditional methods can often only determine a general range, failing to pinpoint the exact location.

Breakthrough in Distributed Traveling Wave Technology

In response, Dingxin Wisdom Technology Co., Ltd. has introduced a series of traveling wave distance measurement and fault location devices. Utilizing innovative distributed traveling wave measurement technology, these devices have achieved breakthroughs in locating faults on transmission lines, distribution lines, and high-voltage cables.

1. DX-WPS100-GZ01Transmission Line Distributed Fault Location Monitoring Device

The equipment supports power supply methods such as CT power and solar power. By installing monitoring terminals distributed along transmission lines, it collects real-time power frequency signals and traveling wave signals at the moment of failure, controlling location errors within 100 meters. With sectional location reliability exceeding 99%, it provides repair crews with precise "navigation." Beyond pinpointing fault locations, it intelligently analyzes fault characteristics—distinguishing lightning-induced faults from non-lightning faults with >95% accuracy; and identifying specific lightning fault types such as flashover and counterstrike faults.

2. DX-WPS100-GZ02 High-Voltage Cable Fault and Potential Hazard Monitoring System

The DX-WPS100-GZ02 High-Voltage Cable Fault and Potential Hazard Monitoring System, also known as the High-Voltage Cable Fault Location System, enables real-time monitoring of high-frequency traveling wave current parameters at cable installation points. It captures traveling wave waveforms in real time and performs high-speed sampling of fault waves during failures. These data are transmitted to the receiving master station for comprehensive analysis and calculation, enabling precise fault location to save valuable time for maintenance personnel. Furthermore, it identifies fault types based on waveform characteristics, significantly enhancing troubleshooting efficiency. Furthermore, the system incorporates early warning capabilities. By capturing, analyzing, and processing potential hazard currents, it proactively identifies cable safety risks and issues alerts, preventing faults before they occur. This provides a safety roadmap for cables and enhances power supply reliability.

3. DX-WPS100-GZ03 Distribution Network Traveling Wave Fault Early Warning and Location Device

The equipment employs BeiDou/GPS high-precision timing and traveling wave velocity online calibration technology, enabling more accurate fault location with positioning accuracy <100 meters. Sensors directly monitor and collect traveling waves on conductors, allowing real-time detection of fault signals in the line. This facilitates fault determination, fault line selection, fault type identification, and rapid, precise fault location.

From "searching for a needle in a haystack" to "navigation"

Dingxin Smart Technology's traveling wave distance measurement fault location equipment transforms fault detection from traditional "manual line patrols and segment-by-segment troubleshooting" to "intelligent diagnosis and localization." This significantly reduces fault investigation time, providing technical assurance for rapid power restoration and safeguarding the secure and stable operation of the power grid.