Information Gain: Traditional high-voltage fuses often struggle with short-circuit currents exceeding 31.5kA in modern dense urban grids. The XRNT1 10kV series with a verified 50kA breaking capacity provides a 30% safety margin compared to industry standards, effectively preventing catastrophic transformer failures and minimizing fire risks in localized substations.
The XRNT1 10kV high-voltage current-limiting fuse is a cornerstone of modern power distribution. At Gongneng Electric, our research focuses on the sub-cycle interruption technology. Unlike standard circuit breakers that may take several cycles to clear a fault, our XRNT1 fuses respond within milliseconds, drastically reducing the I²t (thermal energy) that passes through sensitive equipment.
This "current-limiting" characteristic is vital for protecting oil-immersed transformers and switchgear where explosive energy must be contained immediately. As a specialized factory, our ODM services allow for customized fuse links that match specific transformer KVA ratings and inrush current profiles.
The global demand for high-breaking capacity fuses is surging due to the integration of distributed energy resources (DERs). As solar and wind farms inject power into 10kV-35kV networks, the potential fault currents are becoming more complex, requiring the precision of XRNT1-type protection.
In megacities across Asia and Africa, power density is increasing. 50kA is no longer "optional" but a "requirement" to ensure that a single fault doesn't cause a neighborhood-wide blackout.
Future tech roadmaps focus on lead-free fuse elements and recyclable ceramic casings. Gongneng Electric is already aligning with EU ROHS standards to provide eco-friendly HV solutions.
ZHEJIANG IGOYE ENERGY TECHNOLOGY CO., LTD. is located in the Economic Development Zone of Yueqing City, Zhejiang Province. The company has been committed to the research and development and production of low-voltage electrical appliances, the products are widely used in electric power, infrastructure, energy, electronics and other industry sectors. The company has a series of full set of production and testing equipment, and has a strict enterprise management system.
The company now has a standard workshop of more than 12,000 square meters, 212 employees, 20 professional and technical personnel, production, testing and other various equipment 180 units. We use SPC tools to improve the quality of process control and have established a traceability system for the whole process.





Gongneng Electric provides intelligent plastic shell motor protection, solving frequent tripping during start-up. Dual power supply ensures stable operation after line failures.
High reliability and large load handling for oilfield and refining enterprises, ensuring safe, economical operation in harsh environments.
EU ROHS compliant distribution products (ACB, MCCB, ATS) providing safe, environmentally friendly, and intelligent power for guests.
Reducing system losses and costs for large-scale solar power plants and intelligent microgrids, supporting the global energy transition.
Standardized low-voltage switchgear design to improve overall quality and ease expansion/renovation in national distribution networks.
We are currently developing the XRNT2 Series, which will incorporate digital sensors to monitor fuse health in real-time. This IoT integration allows utility providers to receive notifications before a fuse reaches its thermal limit.
Our 20 professional technical personnel are focused on reducing the size of 10kV fuses while maintaining the 50kA breaking standard, allowing for more compact switchgear designs in urban environments.
It means the fuse can safely interrupt a short-circuit current of up to 50,000 Amperes without exploding or failing to clear the arc. This is essential for systems where the transformer is close to a high-capacity power source.
While the XRNT1 is primarily designed for indoor switchgear (enclosed), we also offer the RW series for outdoor drop-out fuse applications. Please consult our engineers for specific environmental sealing options.
Yes, Gongneng Electric specializes in ODM. We can adjust the dimensions and electrical characteristics for 3.6kV, 7.2kV, and 12kV systems to meet specific international standards.
We use a combination of SPC (Statistical Process Control) and a full traceability system. Every fuse is tested for resistance and insulation before leaving the factory.