Ultra-Fast PyroFuse: Solve High-Speed DC Protection Pain Points for Solid-State Transformer & Hyperscale Data Center
The global power infrastructure is undergoing a revolutionary shift from traditional electrical architectures to solid-state power systems. Driven by booming AI hyperscale computing, energy storage, solar power and high-power EV charging industries, manufacturers are ramping up large-scale solid-state transformer (SST) production lines to meet surging energy demands.
Traditional power facilities rely on decades-old passive, low-intelligence electrical equipment, which can no longer match the requirements of modern high-efficiency power electronics. Solid-state transformers built with wide-bandgap power semiconductors deliver higher efficiency, smaller footprint and faster project deployment, yet they bring an unprecedented core technical bottleneck: ultra-high-speed DC circuit fault protection.
Core Protection Challenges of Modern SST & Data Center Power Modules
1. Vulnerable modular power semiconductor units
Latest-generation wide-bandgap power modules feature ultra-high energy efficiency, but they are extremely sensitive to overcurrent short-circuit faults. Once a fault occurs, the faulty module must be isolated within microseconds to avoid permanent breakdown and catastrophic device rupture. Conventional thermal-magnetic circuit breakers and regular fuses have slow response speeds and cannot meet the microsecond-level disconnection requirement of semiconductor modules.
2. Strict protection speed requirements for core application scenarios
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- AI hyperscale data centers: These facilities demand ultra-high operational availability. Slow fault isolation will cause fault energy to spread to adjacent normal modules, expanding power outage scope and triggering massive computing downtime losses. Rapid fault cutoff can effectively contain fault energy and block fault propagation.
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- Energy storage & photovoltaic systems: New-generation SST solutions remove multi-layer intermediate electrical equipment, lowering overall system impedance and drastically accelerating fault current rise rates. Only microsecond-level high-speed DC interruption devices can deliver effective system protection.
In short, traditional protection components are far too slow to safeguard wide-bandgap semiconductors against short-circuit risks — this is the key pain point our PyroFuse technology is designed to resolve.
Why PyroFuse Is the Perfect Matching Protection Solution for Solid-State Transformer Systems
Our PyroFuse high-speed DC protection devices are tailor-made for SST, data center, energy storage and high-power DC scenarios, with three core competitive advantages:
1. Ultra-fast breaking performance (<1ms)
Complete circuit disconnection within 1 millisecond, fully matching the withstand limit of power semiconductor modules, completely avoiding device explosion and irreversible system damage caused by short-circuit faults.
2. Arc-free DC breaking, high safety for 800V+ high-voltage DC architecture
Different from mechanical contactors that generate strong electric arcs during breaking, PyroFuse realizes arc-free DC switching. It adapts perfectly to high-voltage DC systems including AI server racks and large-scale energy storage clusters, greatly improving system operational safety.
3.Miniaturized compact design, compatible with high-power-density SST modular design
The product boasts an ultra-compact outline and will not occupy extra busbar installation space. It fits seamlessly with modular SST structural design, and supports fully automated assembly production, matching the mass production rhythm of gigawatt-level SST manufacturing bases.
Full Series PyroFuse Product Portfolio
We provide diversified models covering voltage ranges from 150V to 1500V, with dual trigger and external trigger options, widely applicable to data centers, energy storage, new energy vehicles and charging stations:
| Model | Rated Voltage | Rated Current | Trigger Mode | Product Status | Typical Application Scenarios |
|---|---|---|---|---|---|
| PyroFuse-6A | 1500V | 2400A | Dual trigger | Under development | Large energy storage systems, high-capacity DC power supplies |
| PyroFuse-5/PyroFuse-7 | 1500V | 400–630A | Dual trigger | Mass production (SOP) | Energy storage systems, high-capacity DC power suppliesGlobal exclusive fully developed & certified technology |
| PyroFuse-4C | 1000V | 400A | Dual trigger | Mass production (SOP) | EVs, charging stations, energy storage, data centers, high-current DC power supplies |
| PyroFuse-3 | 1000V | 400A | External trigger | Mass production (SOP) | EVs, charging stations, energy storage, data centers, high-current DC power supplies |
| PyroFuse-2L | 930V | 400A | External trigger | Mass production (SOP) | EVs, charging stations, energy storage, data centers, high-current DC power supplies |
| PyroFuse-2 | 500V | 400A | External trigger | Mass production (SOP) | EVs, charging stations, high-current DC power supplies |
| PyroFuse-1 | 150V | 300A | External trigger | Mass production (SOP) | EVs, charging stations, energy storage, high-current DC power supplies |
Industry Cooperation & Value Prospect
At present, we have established in-depth technical cooperation with top global manufacturers of data center power equipment and energy storage systems to jointly tackle DC protection difficulties in solid-state power architectures.
Solid-state transformers are reshaping the delivery mode of global power supply. Our PyroFuse series high-speed DC protection solutions act as the safety core of SST systems, guaranteeing safe, reliable and instant power cutoff under all fault conditions.
If your enterprise is developing or mass-producing solid-state transformers, AI data center power modules, energy storage converters and high-voltage DC power equipment, welcome to contact our professional technical team. We can arrange one-on-one technical communication to customize targeted ultra-fast DC protection schemes for your products.