Distribution network cable fault location device

Distribution Network Cable Fault Locator

Model: DX-WPS100-GZ02

I. Product Overview

The distribution network cable fault locator adopts a highly reliable and energy-efficient design, primarily consisting of a fault traveling wave sensor, temperature measurement module, timing unit, communication module, control host, and power supply module. It collects line operation and fault information through the traveling wave sensor, transmits it wirelessly via 4G to the central server for data preprocessing, and then uploads the data to the backend master station. The master station analyzes the data using intelligent algorithms and promptly issues fault warnings or diagnostic information to customers, accelerating power restoration and reducing outage losses.

II. Main Functions

1.Data Acquisition: Utilizes a one-host multi-channel structure, capable of simultaneously collecting 7 high-frequency signals (3 high-frequency current traveling waves, 3 fault current traveling waves, 1 voltage traveling wave) and 8 low-frequency signals (3 power frequency currents, 4 ground loop currents, 1 voltage).

2.Fault Location: Based on the dual-end positioning principle, it calculates the fault point location using the arrival time of transient traveling wave surges at the measurement end. The fault ranging accuracy meets within (0.2%*L+5) meters, where L is the cable length.

3.Fault Type Identification: Identifies fault types by analyzing the current traveling wave and power frequency fault current waveform characteristics of phases A, B, and C, providing reference for line maintenance.

4.Clock Synchronization: Uses Beidou/GPS timing combined with a precise sampling synchronization algorithm, with synchronization accuracy not exceeding 20ns.

5. Fault Early Warning: Monitors cable fault current traveling waves to provide early warnings and prevent trip faults.

6.Power Supply Method: Employs solar and CT power extraction for power supply, supports external mains power access, with a battery capacity of 20Ah.

III. Technical Parameters

1. Traveling wave current sampling rate: 1–10MHz

2. Traveling wave current sampling range: 10mA–1000A

3. Ground current sampling range: 0–300A

4. Power frequency current sampling rate: ≥12.8kHz

5. Power frequency current measurement range: 0–600A

IV. Conclusion

The distribution network cable fault locator provided by Dingxin Smart Technology features a reasonable, compact, and reliably protected packaging structure, meeting GB/T 13384 standards and fulfilling requirements for durability, aesthetics, and economy. Under normal storage, transportation, and handling conditions, it will not suffer from damage, loss, rust, mold, or reduced accuracy due to poor packaging. Additionally, complete random documents are included, such as a packing list, user manual, battery charging instructions, factory certificate, and factory inspection report, all placed together in the packaging box.

For more information about the distribution network cable fault locator, please contact Ms. Feng at Dingxin Smart Technology: 1/8/9/2/3/8/2/5/1/1/6