South African Clients Visit Goldhome Hipot to Focus on High-Voltage Series Resonance and Comprehensive Transformer Testing Equipment
Recently, a procurement team from a renowned South African power engineering firm visited Wuhan Goldhome Hipot Electrical Equipment Co., Ltd. for a one-day on-site inspection and technical exchange.
I. Goldhome Hipot: A High-Tech Enterprise Specializing in High-Voltage Testing
Founded in Wuhan, Hubei in 2008, Goldhome Hipot is a national-level high-tech enterprise and a Wuhan "Science and Technology Little Giant" enterprise. It holds 45 national patents and over 10 software copyrights, with a factory floor area exceeding 10,000 square meters. In 2021, the company fully acquired Wuhan Sangao Electric, which has over 30 years of experience in R&D of UHV (Ultra-High Voltage) partial discharge-free equipment, further enhancing its technical capabilities.
The company specializes in the R&D and manufacturing of high-voltage power testing equipment. Its core products include series resonance units, partial discharge-free testing systems, and comprehensive transformer test benches. Serving over 100 countries and regions worldwide, its products are CE-certified and compliant with international power grid standards.
In recent years, South Africa's power market has accelerated infrastructure upgrades, placing extremely high demands on the stability, accuracy, portability, and safety of high-voltage testing equipment. During this visit, the client focused on the core parameters, on-site operation, and adaptability of two major pieces of equipment, meticulously verifying the details most critical to B2B procurement.
(1) High-Voltage Series Resonance Test System (HMCXZ Series)
This equipment serves as the core apparatus for AC withstand voltage testing of capacitive test specimens such as high-voltage cables, GIS, and transformers, and was the primary focus of the South African client's visit.
- Load Capacity and Energy Efficiency: Given the limited power supply capacity at South African sites, the equipment must be compatible with low-power sources. Utilizing the principle of resonance, the power supply requirement is less than one-tenth of the test specimen's capacitance. Even 500kV-class equipment can be driven by a standard 380V/50Hz power supply, making it perfectly suited for the power conditions at remote construction sites in South Africa.
- Test Accuracy and Waveform Quality: Power testing imposes stringent requirements on waveform distortion rates; excessive distortion can lead to misdiagnosis of equipment insulation defects. This unit outputs a pure sine wave with a waveform distortion rate ≤1.0%, frequency stability ≤0.05%, and partial discharge levels as low as ≤10 pC, enabling precise detection of insulation hazards and meeting the South African national standard SANS 60060.
- Portability and On-Site Adaptability: With power stations in South Africa being widely dispersed and road conditions complex, equipment must be easy to transport and deploy quickly. Featuring a modular dry-type design, each unit weighs ≤50 kg, requiring no large-scale lifting equipment and allowing assembly by just two people; it supports wide-frequency adjustment from 30–300 Hz, making it suitable for testing equipment across all voltage levels from 10 kV to 500 kV.
- Comprehensive Testing and Compatibility: Given the wide variety of transformer models in the South African power grid (10 kV–220 kV), a single device must accommodate multiple scenarios. This test bench supports universal testing for both single-phase and three-phase transformers, with a testing capacity ranging from 50 kVA to 20,000 kVA. It is compatible with both oil-immersed and dry-type transformers, covering the full range of testing categories without the need to change equipment.
- Data Accuracy and Traceability: B2B procurement requires test data to be archivable and traceable for subsequent operational and maintenance verification. The equipment utilizes high-precision sensors, with voltage measurement error ≤±0.5% and current error ≤±0.3%; A built-in data storage module can save over 1,000 test records, supports USB export, and automatically generates English reports to meet local South African archiving requirements.
- Ease of Use and Intelligence: Given the varying skill levels of local technical personnel in South Africa, the equipment must be user-friendly and reliable. It features a bilingual (Chinese/English) touchscreen that enables one-click initiation of fully automated testing, eliminating the need for manual calculations. Equipped with self-diagnostic capabilities that provide real-time alerts for anomalies, ordinary technicians can operate the system independently after just two hours of training, significantly reducing long-term operational and maintenance costs.
This on-site visit by the South African client exemplifies Goldhome Hipot's deep commitment to overseas markets and its commitment to the "Quality Overseas" philosophy. Through in-house core technology development, rigorous manufacturing processes, and a comprehensive after-sales support system, Goldhome Hipot has established itself as a reliable partner in the global high-voltage testing equipment sector.
