Goldhome HMYDJC-250kVA/250kV Power Frequency Test Transformer Demonstrates Technological Advantages
Recently, Wuhan Goldhome Hipot , a national-level specialized, refined, distinctive, and innovative "Little Giant" enterprise, launched its HMYDJC-250kVA/250kV power frequency test transformer. With its precise performance parameters and outstanding technical advantages, this transformer has been widely adopted in core applications such as power equipment insulation testing and scientific research experiments. It has earned high recognition from users including State Grid and research institutes, establishing itself as a benchmark product in the high-voltage testing field and showcasing the robust capabilities of China's intelligent manufacturing.
This power frequency test transformer model, backed by robust data, boasts outstanding core advantages with all performance metrics reaching industry-leading levels. In terms of parameter accuracy, it achieves a measurement accuracy of Class 1.0 and an input-output ratio accuracy of <1.5%, far exceeding the conventional industry standard of Class 1.5 accuracy, ensuring precise and reliable test data. No-load losses ≤4% and load losses ≤9% reduce energy consumption by over 20% compared to similar products, saving approximately 3,000 kWh annually while delivering both energy efficiency and economic benefits.
Exceptionally versatile specifications accommodate low-voltage adjustments from 0 to 380V and currents up to 657.9A, enabling power frequency withstand voltage testing for equipment ranging from 10kV to 750kV without additional voltage regulation equipment, significantly boosting testing efficiency. Featuring oil-circulation cooling, it enables continuous operation exceeding 8 hours-far surpassing the 1-hour limit of comparable dry-type products-to meet large-scale batch testing demands.
For safety and convenience, the product comes standard with a smart control console, current-limiting resistors, and a full set of accessories. It incorporates triple protection mechanisms against overvoltage, overcurrent, and overheating, with a response time ≤0.1 seconds, effectively preventing equipment damage and personnel safety hazards. Utilizing Nippon Steel silicon steel sheets and specialized insulating oil, it achieves a partial discharge level ≤5 pC, ensuring excellent insulation performance and an equipment lifespan exceeding 15 years.
Backed by over 30 national patents from Goldhome, this product has passed national type testing certification and is manufactured in compliance with ISO triple-system quality standards. Customized modification services are available. Currently deployed in multiple key power projects and university research laboratories, it is also exported to countries along the Belt and Road Initiative. With precise data and stable performance, it safeguards global power safety testing.
