Shu Guang
Shu Guang
Established in 1992 as "Yueqing Shuguang Fuse Factory," we have grown over three decades into a leading power technology enterprise. Located in Yueqing, the Electrical Capital of China, our facility integrates R&D, advanced production, and global service.
As an industry veteran, we are designated by the Ministry of Electric Power Industry to manufacture specialized high-voltage current-limiting fuses and oilfuse components that safeguard critical electrical infrastructure across the globe.
Oil-immersed fuses (oilfuses) are critical components in medium-voltage distribution transformers. Unlike standard expulsion fuses, oilfuses are designed to operate submerged in transformer oil, providing full-range clearing capability. In the current global industrial landscape, the shift toward compact, environmentally sealed switchgear has made the China oilfuse manufacturer a vital node in the power supply chain.
The industry is moving toward "Smart Grids" and higher integration. Modern oilfuse technology now focuses on higher breaking capacities and better thermal stability. We are seeing a trend where procurement managers demand fuses that meet multiple international standards (IEC/DIN/ANSI) simultaneously to streamline global inventory. Digitalization of grid monitoring also requires fuses with more precise time-current characteristics.
Oilfuses are predominantly found in pad-mounted transformers, wind turbine step-up transformers, and underground distribution systems. In regions like the Middle East and Southeast Asia, where dust and humidity are high, the oil-immersed design offers superior protection against environmental degradation compared to air-insulated alternatives. Our oilfuse-link products are engineered for these extreme conditions.
Our commitment to excellence is backed by rigorous testing and international compliance. We ensure that every oilfuse leaving our factory meets the highest safety benchmarks.
Compliant with IEC 60282-1, DIN 43625, BS 2692, and ANSI C37.42. This allows our products to be seamlessly integrated into projects across Europe, North America, and beyond.
Tested at the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center and the Xi'an High-voltage Electrical Apparatus Research Institute.
We use high-purity silver elements and specialized ceramic bodies to ensure stable aging characteristics and reliable interruption under fault conditions.
International utilities and transformer manufacturers face the challenge of balancing cost with uncompromised reliability. The demand for wholesale oilfuse supplies is growing, particularly for renewable energy integration (solar and wind farms). Procuring directly from a China-based manufacturer like Shuguang Fuse offers several strategic advantages:
In recent years, the company has developed rapidly, significantly improving economic and social benefits. While vigorously developing new products, we have always attached importance to the process flow. High-quality raw materials and sophisticated testing equipment are the backing of our quality assurance system.
The "Shu Rong" brand products have enjoyed a high reputation among domestic and foreign users for their precision and durability in high-voltage environments.
Providing reliable protection for every corner of the power grid
As a leading China oilfuse manufacturer, we understand that power protection is not just about a single component; it's about the safety of the entire grid. Our products are exported to various provincial power companies in China, and we have established a complete sales network throughout Southeast Asia, the Middle East, Africa, and Europe.
Our technical performance meets or exceeds the industry's most stringent requirements, including those of the Ministry of Electric Power Industry. Whether you require capacitor protection fuses, voltage transformer protection fuses, or zinc oxide arresters, our engineering team ensures that every unit is optimized for its specific application.
The core of our success lies in our "Development by science and technology, and survival by quality" philosophy. We continuously reinvest in high-power test stations and advanced production lines to remain at the forefront of the fuse industry.
