บทบาทของซอฟต์แวร์จําลองในโรงงานลิงค์ฟิวส์แรงดันสูง CSP

This blog article explores how FOSHAN KETRANS ELECTRIC CO., LTD (KETRANS) leverages simulation software in its CSP high voltage fuse link factory to design, test, and optimize products. Established in 2015, KETRANS specializes in CSP components like oil-immersed LV circuit breakers, HV fuse links, and LV arresters. Simulation is used to model the proprietary silver-copper alloy for fuse elements, ensuring performance matches ABB products while resolving compatibility issues. End-to-end in-house manufacturing benefits from simulation for process optimization, capacity planning, and cost reduction, giving KETRANS a 45% price advantage over foreign brands. Virtual type tests (short-circuit, temperature rise, lightning impulse, oil-immersion aging) guarantee ANSI compliance and support global certifications for North American and Latin American markets. Rigorous quality control, with 100% simulated operational testing, yields a defect rate below 0.3‰. The company holds over 40 patents, ISO9001:2015, and awards for quality and safety. By integrating simulation across R&D, production, and customer support, KETRANS delivers reliable, cost-effective CSP solutions, solidifying its position as a trusted supplier to transformer manufacturers worldwide.

In the competitive world of distribution transformer protection, simulation software has become an indispensable tool for manufacturers aiming to deliver reliable, high-performance components. For FOSHAN KETRANS ELECTRIC CO., LTD (KETRANS), a pioneer in Completely Self-Protected (CSP) transformer components, simulation is the backbone of their engineering process. Founded in 2015 with a 5,000 square meter manufacturing facility, KETRANS specializes in oil-immersed low-voltage circuit breakers, high-voltage fuse links, and low-voltage arresters. The company’s dedication to innovation is evident in their use of simulation to design, test, and optimize their high-voltage fuse links, ensuring they meet stringent ANSI standards and outperform competitors.

Simulation in Fuse Element Design

KETRANS has developed a proprietary high-purity silver-copper alloy for its high-voltage fuse elements. Simulation software plays a critical role in modeling the electrical and thermal behavior of these alloys under various fault conditions. By simulating short-circuit interruptions, temperature rises, and aging effects, engineers can fine-tune the alloy composition and geometry without costly physical prototypes. This approach has enabled KETRANS to achieve performance metrics matching ABB products, ensuring compatibility with their own CSP circuit breakers and resolving industry-wide issues of component mismatches.

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Thermal and Mechanical Simulations

Using finite element analysis (FEA), KETRANS models heat distribution within the fuse link during normal operation and fault events. These simulations help predict hot spots and ensure the fuse operates within safe temperature limits, even in high-temperature, high-humidity environments common in Latin America. Mechanical simulations also verify the structural integrity of the fuse under high-pressure arc extinction processes. The result is a robust design that withstands severe thunderstorm conditions and 60Hz grid variations.

End-to-End In-House Manufacturing and Simulation

KETRANS operates a 5,000 m² production workshop and a 10,000 m² warehouse, equipped with 20 welding units and over 50 precision machines. Every step—from stamping and injection molding to fuse element smelting and assembly—is done in-house. Simulation software integrates into this workflow by optimizing manufacturing parameters. For instance, simulation of the smelting process ensures uniform alloy composition, while injection molding simulations predict material flow to minimize defects. This vertical integration, combined with simulation, eliminates outsourcing and intermediaries, contributing to a 45% cost advantage over European and American brands and 18% over domestic assembly traders.

Production Capacity and Simulation

Simulation tools also aid in capacity planning. By modeling production line throughput and bottlenecks, KETRANS can scale daily output up to 1,200 complete CSP three-piece sets during peak seasons. Standard orders ship within 7-15 days, thanks to simulation-driven inventory management that maintains ready stock for common specifications. For large-volume contracts, simulation helps forecast raw material needs, ensuring fixed pricing stability for clients.

Testing and Quality Control Through Simulation

Before physical testing, KETRANS subjects each fuse link design to virtual type tests: short-circuit, temperature rise, lightning impulse, and oil-immersion aging. These simulations, verified against third-party lab results, ensure compliance with ANSI standards for North American and Mexican (NOM) markets. After production, 100% of circuit breakers and fuses undergo simulated operational testing under load, generating individual factory test reports. This rigorous process maintains a defect rate below 0.3‰. The ISO9001:2015 quality system is reinforced by simulation, where virtual experiments predict failure modes and guide process improvements.

Intellectual Property and Innovation

KETRANS holds over 40 patents, including 10 invention patents for CSP protection core structures. Simulation software has been instrumental in developing these innovations, allowing engineers to explore novel designs without expensive trial-and-error. The company’s self-developed high-purity silver-copper alloy melt, invented through simulation-optimized recipes, matches ABB performance and is a key differentiator. With over 20 professional electrical engineers and an independent QC laboratory, KETRANS continues to push boundaries, supported by simulation tools that validate every new concept.

Global Market Compliance and Simulation

Simulation ensures that products meet diverse international standards. KETRANS’ components are specially optimized for 60Hz overseas grids, with thermal and electrical simulations confirming stable operation in Latin American climates. The company is certified as a “Gold-Level Source Factory” by Made-in-China.com and holds full import-export licenses. Comprehensive third-party test reports, bolstered by simulation data, satisfy power grid tender requirements across the Americas. Awards like the “Excellent Quality Award” (2023) and “Outstanding Safety Management Enterprise” (2024) reflect the maturity of their simulation-driven quality system.

Customer Support and Simulation

KETRANS’ customer-focused approach extends to post-sale support. Simulation models of installed fuse links help customers predict performance in their specific transformer designs. During initial consultation, simulation scenarios demonstrate how KETRANS components integrate with CSP transformers for safe, maintenance-free operation. This transparency builds trust and long-term relationships, based on mutual success.

สรุป

Simulation software is not just a tool at KETRANS; it is a core competency that permeates every phase of fuse link production—from material science to global compliance. By leveraging virtual prototyping and testing, KETRANS delivers superior CSP technology components that rival top-tier brands at a fraction of the cost. As the first Chinese factory to independently develop a complete set of CSP protection components, KETRANS exemplifies how simulation empowers innovation, efficiency, and reliability in the high-voltage fuse industry.

Company Profile: FOSHAN KETRANS ELECTRIC CO., LTD (KETRANS), established in 2015, manufactures a complete set of built-in protection and monitoring components for CSP transformers. With a 5,000 m² factory and annual revenue of ~RMB 50 million, 80% of products are exported to transformer manufacturers in America and Latin America. The company holds ISO9001:2015, multiple patents, and a reputation for cost-effective, high-quality solutions.