South African Delegation Visits Goldhome to Inspect High-Voltage Partial Discharge Testing Equipment
Recently, a delegation of key South African clients visited Goldhome for an on-site tour and technical inspection. The visit focused on the company's core flagship equipment, with particular emphasis on the 600kVA/600kV mobile integrated series resonance system. The delegation also observed the full operational testing process firsthand, thoroughly verifying product performance, structural design, and on-site adaptability. This visit laid a solid foundation for long-term cross-border cooperation and the implementation of overseas projects. Goldhome's overseas business and core technical teams provided full-time accompaniment and hosted specialized technical exchanges.
The 600kVA/600kV mobile integrated series resonance system, which was the primary focus of the client's inspection, is a high-end, integrated, and highly mobile testing device independently developed by Goldhome to address the challenges of outdoor high-voltage field testing. Leveraging eight core technological advantages, it perfectly adapts to various complex outdoor high-voltage testing scenarios. Its comprehensive performance far exceeds that of traditional power-frequency testing equipment, demonstrating strong industry competitiveness and excellent adaptability for overseas applications.
I. Fully Vehicle-Integrated Design for Efficient and Convenient Deployment. All core components of the equipment are uniformly integrated onto a specialized vehicle platform. The highly integrated, modular design eliminates the need for cumbersome, separate handling. Upon arrival at the test site, the equipment can be rapidly deployed and immediately put into operation, significantly reducing the time required for transportation, assembly, installation, and commissioning of traditional equipment. This greatly enhances field construction efficiency and perfectly meets the demands of mobile outdoor operations.
2. Pre-wired design for minimal on-site operation. All internal core wiring is pre-connected, tested, and secured at the factory. This eliminates the need for complex on-site cabling, wiring, and calibration procedures. Operators need only connect the test specimen to quickly initiate high-voltage withstand testing. This greatly simplifies on-site operational workflows, effectively reduces labor costs and the rate of operational errors, and significantly improves on-site work efficiency.
III. Equipotential structure design ensures high integration and compactness. The high-voltage core components of the equipment utilize an advanced equipotential structure design, effectively reducing internal safety insulation distances. While ensuring operational safety and meeting insulation performance standards, this design significantly reduces the overall footprint of the equipment, achieving a compact and highly integrated layout. This effectively saves on-site workspace, with the equipment offering distinct advantages in terms of lightweight and compact design.
IV. High-Q Energy-Saving Design, Reduced Power Supply Requirements. The system features excellent high-Q characteristics, offering high energy conversion efficiency and lower energy consumption. This significantly reduces the required on-site power capacity, effectively lowering the power supply threshold and alleviating power supply pressure in complex field conditions. Significant Advantages Over Traditional Test Equipment: Under equivalent withstand voltage test conditions, traditional systems require a 100 kW power supply, whereas this high-Q series resonance system requires only approximately 50 kW to complete the test, offering energy efficiency and superior adaptability.
V. Precise Power Frequency Output, Compliant with Testing Standards. The equipment employs professional capacitive compensation technology to precisely control the system's operating frequency, maintaining it stably within the 45 Hz to 55 Hz range. This perfectly aligns with the requirements of power frequency AC withstand voltage test standards. It retains the core advantages of series resonance systems-energy efficiency, low noise, and stability-while achieving standard power frequency test results, ensuring that test data is compliant, accurate, and valid.
VI. Stable High-Voltage Output, Compact and Mobile Design. The equipment delivers a stable 600 kV high-voltage output, meeting the withstand voltage testing requirements for medium- and high-voltage power equipment. Compared to traditional 600 kV power-frequency test transformers-which suffer from bulky size, difficult handling, and site constraints-this system, leveraging advanced series resonance technology, significantly reduces overall volume. With a small footprint and a lightweight, flexible design, it greatly enhances field mobility and adaptability to various testing scenarios.
VII. Supports Partial Discharge (PD)-Free Upgrades for High-End Testing. The system can be custom-designed and manufactured to meet international PD-free standards. The high-voltage reactor supports PD-free configuration upgrades, precisely meeting the partial discharge testing requirements for core power equipment such as high-voltage power cables, large motors, and main transformers. It is suitable for high-end factory acceptance tests, handover tests, and precision inspection scenarios.
8. Wide Range of Application Scenarios, Specializing in On-Site High-Voltage Testing. The equipment is specifically tailored for outdoor high-voltage field testing and offers exceptional adaptability. It is widely applicable in various power engineering scenarios, including AC withstand voltage tests for power cables, GIS, transformers, and generators, as well as on-site handover tests at substations. It serves as a core workhorse for power grid operation and maintenance, engineering construction, and equipment inspection.
