Goldhome's HMCXZ-270kVA/270kV Variable-Frequency Series Resonance System Successfully Completes On-Site Testing
The HMCXZ-270kVA/270kV variable-frequency series resonance withstand voltage test system, independently developed and manufactured by Goldhome, has successfully completed a full set of on-site withstand voltage tests for high-voltage power projects in multiple locations. The equipment operated stably and delivered precise test data, passing the joint acceptance inspection by the owner and the supervising authority on the first attempt. This fully demonstrates Goldhome's robust R&D and manufacturing capabilities in the field of medium- and high-voltage power testing equipment, providing an efficient and reliable domestically produced solution for handover and preventive testing of mainstream 35 kV and 110 kV power grid equipment.
In power infrastructure construction and operations and maintenance, insulation withstand voltage testing of capacitive equipment-such as high-voltage cables, GIS switchgear, current transformers, and insulators-is a core component in ensuring the safe and stable operation of the power grid. Traditional power-frequency withstand voltage equipment suffers from drawbacks such as bulky size, high power consumption, unstable voltage rise, and a tendency to cause overvoltage damage to test specimens, making it difficult to meet current on-site testing requirements for lightweight, high-precision, and high-safety solutions. Goldhome has precisely tailored its HMCXZ-270kVA/270kV flagship resonant testing unit-a compact and medium-sized solution-to the actual operating conditions of power construction, maintenance, and third-party testing organizations at all levels. It balances portability, stability, and versatility, making it perfectly suited for routine testing scenarios involving high-voltage power equipment.
This on-site testing covered various types of core equipment, including 35 kV high-voltage long-distance cables, 110 kV gas-insulated switchgear (GIS), and high-voltage transformers, strictly adhering to relevant GB and IEC power testing standards and specifications. The equipment employs mature variable-frequency series resonance technology, which can automatically sweep and lock onto the resonance point within a wide frequency range of 30–300 Hz. It achieves stable high-voltage output without requiring a high-power construction power source, effectively resolving the challenge of insufficient power capacity at construction sites. The entire system produces pure output waveforms with extremely low distortion rates, delivering precise voltage output with minimal fluctuations, and operates throughout the process without flashover, breakdown, or abnormal electromagnetic interference.
Compared to traditional testing equipment, the Goldhome HMCXZ series offers particularly notable advantages. The equipment features a modular, split-type design that is easy to assemble and disassemble and flexible to transport, significantly reducing the difficulty of on-site installation and commissioning while effectively shortening the testing schedule. It is also equipped with a multi-layered intelligent protection system, including overvoltage, overcurrent, and overheat protection, as well as instantaneous flashover shutdown and zero-voltage start-up functions. Should an insulation defect occur in the test specimen, the system instantly detunes to limit current, preventing overvoltage surges from damaging precision high-voltage equipment and comprehensively ensuring testing safety and equipment integrity.
The equipment features a built-in intelligent control system with simple and intuitive operation. It supports real-time data acquisition, dynamic display of test curves, and one-click export of test reports, significantly enhancing on-site testing efficiency. After continuous full-load testing under multiple operating conditions, the equipment demonstrated stable temperature rise and no performance degradation, with highly accurate test data. It perfectly adapts to complex outdoor operating conditions and routine operation and maintenance testing requirements, earning high praise from the on-site technical team.
The resounding success of this on-site test once again validates the exceptional quality and practical performance of Goldhome's power testing equipment. Moving forward, Goldhome will continue to deepen its expertise in the high-voltage testing field, continuously optimize its product portfolio and core technologies, and refine a series of testing equipment characterized by high adaptability, safety, and precision. The company remains committed to safeguarding power engineering projects and ensuring the safe operation and maintenance of power grids both domestically and internationally, while continuously expanding the market competitiveness and brand influence of domestically produced power equipment.
