Smart Overhead Distribution Line Monitoring and Traveling Wave Fault Detection Unit

Product Overview

Designed for overhead power distribution networks, this integrated monitoring unit combines electrical fault detection, current measurement, waveform acquisition, and self-powered energy supply functions.

The device is developed to support real-time line condition monitoring, traveling wave signal acquisition, and fault warning and location. It integrates a traveling wave measurement module, industrial-frequency current measurement, Rogowski coil, dual-channel power harvesting CT, and photovoltaic auxiliary power supply within a compact outdoor enclosure.

By combining multiple monitoring and power supply technologies, the unit helps address common challenges in outdoor distribution network applications, including insufficient external power supply, signal interference, equipment aging, and complicated installation.

It is suitable for 10kV urban and rural power distribution line fault warning, fault location, and operating condition monitoring projects.

Main Product Characteristics

1.Integrated Electrical Monitoring

Multiple measurement functions are incorporated into one unit, including industrial-frequency current monitoring, traveling wave detection, transient waveform acquisition, and electrical signal collection. It can work with various traveling wave acquisition terminals, self-powered monitoring devices, and transient recording equipment.

2.Convenient Live-Line Installation

The enclosure adopts an opening-and-closing structure, allowing the device to be mounted directly onto an overhead conductor without interrupting the power supply. It accommodates conductors with diameters up to 40 mm, making field installation more convenient.

3.Adaptive Mounting Design

An internal self-adaptive cable fixing mechanism helps secure the equipment to the conductor and supports stable installation under outdoor operating conditions.

4.Optimized Magnetic Core Structure

The magnetic core mating surfaces undergo precision grinding to minimize the air gap between contact surfaces. This design reduces noise and improves energy harvesting performance, particularly under low-current operating conditions.

5.Dual CT Energy Harvesting with Solar Assistance

Two power harvesting CT channels obtain electrical energy from the overhead line, while the photovoltaic panel provides supplementary power. This combined power supply arrangement supports equipment operation and reduces dependence on external power sources. It also helps maintain safe operating temperatures and reduces the risk of magnetic saturation.

6.Durable Outdoor Enclosure

The housing is made of flame-retardant engineering plastic and features IP66 protection. It offers resistance to rain, dust, moisture, and UV exposure, supporting continuous operation in demanding outdoor environments.

Applications

Overhead power distribution line monitoring / Distribution network fault detection and location / Traveling wave fault analysis / Online electrical current measurement / Power grid condition monitoring / Smart grid monitoring systems / Outdoor power line monitoring terminals / Remote distribution network monitoring.

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HEMEI Manufacturing and Customization

HEMEI focuses on the development and manufacturing of current transformers, power harvesting CTs, magnetic cores, and customized electrical monitoring components.

With experience in magnetic core processing, transformer assembly, and electrical performance testing, we provide customized solutions for different power distribution monitoring requirements.

Our engineering team can support project-specific requirements involving conductor dimensions, current measurement ranges, magnetic core configurations, energy harvesting performance, and installation structures.

**Looking for a customized overhead line monitoring solution? Contact HEMEI to discuss your technical requirements and obtain product information and a quotation.