In the field of power distribution, maintenance of underground and overhead lines is essential to minimize downtime and ensure operational safety. Wuhan Goldhome Hipot Electrical Co., Ltd. recently delivered a series of advanced integrated cable fault locators to a power utility in Southeast Asia. These devices can quickly and accurately locate faults-such as short circuits, open circuits, or insulation deterioration-enabling field technicians to perform repairs more efficiently.
The integrated cable fault locators combine multiple detection technologies, including surge reflection and arc reflection methods, in a single portable unit. Their multifunctional design allows them to adapt to different cable types and environmental conditions. During recent training sessions organized by Goldhome Hipot, the customer's engineering team systematically acquired operational and data analysis knowledge. The program focused on safety regulations and best practices in fault diagnostics for both low- and high-voltage cable networks.
As urban power grids expand and cable penetration rates increase, fast and accurate cable fault location has become a critical challenge for power companies around the world. Traditional fault detection methods often rely on scattered equipment, require complex wiring, and extensive specialized expertise, resulting in prolonged outages and increased maintenance costs. Goldhome Hipot's new integrated solution addresses these problems through systematic technological innovation.
The HM Series integrated cable fault locator stands out for its integrated design, which combines six key components-including the main test unit, multi-pulse generator, cable path detector, high-voltage operating box, and pulse capacitor-into a portable trolley system. This integrated approach eliminates the cumbersome wiring procedures of conventional equipment, reducing setup time by more than 60% and minimizing the risk of operational errors or equipment damage.
This equipment uses advanced testing technology and supports three basic distance measurement methods – low voltage impulse, high-voltage flashover, and arc reflection-enabling diagnosis of all common fault types in power cables up to 35 kV, including open circuits, short circuits, low-resistance ground faults, and high-resistance flashovers. Its intelligent waveform analysis system can display and compare up to twelve test waveform sets simultaneously. The one-button distance measurement function provides the cable length and fault location directly without manual interpretation. Using FPGA+NAD parallel sampling technology, the locator achieves a sampling frequency of 450 MHz, ensuring positioning accuracy of ±0.15 meters and reducing the test blind zone to 16 meters.
The HM-A50 sets a new benchmark for performance with its advanced technological capabilities. Its industrial-grade embedded computer platform running the Linux operating system, paired with a 12.1-inch high-brightness touchscreen, enables automatic waveform analysis and fault distance calculation. Utilizing Time Domain Reflectometry (TDR) and multi-pulse technology, the system accurately identifies all common fault types in power cables and communication cables ranging from 380V to 220kV, including open circuits, short circuits, low-resistance ground faults, and high-resistance flashovers. Field testing confirms this device reduces fault location time to under one hour while achieving meter-level accuracy-3 to 5 times faster than traditional equipment.
Safety and adaptability are equally important design considerations. The HM-A50 features an intelligent safety system that automatically locks the high-voltage unit when protective grounding is inadequate, releasing the residual load within 30 seconds of shutdown to completely eliminate the risk of electric shock. Its lightweight construction (50 kg) combined with wide tires allows it to climb 20° slopes and traverse complex terrain such as muddy fields and dirt roads. Designed for use by a single operator, it is suitable for work in both urban and remote areas. The inclusion of a 25-meter test cable set further enhances its flexibility in remote and complex field environments.
Regular use of such diagnostic tools helps power system operators extend cable life, reduce maintenance costs, and improve grid reliability. The Goldhome Hipot Cable Fault Locator is suitable for applications such as urban power grids, industrial parks, renewable energy complexes, and railway electrification systems.
Evaluate the comprehensive solutions offered by Wuhan Gldhome Hipot Electrical Co., Ltd. for reliable cable fault location and diagnostic equipment. As a trusted global supplier of electrical testing equipment for industrial applications, we are dedicated to providing professional equipment tailored to various sectors.
