As global energy transition accelerates, power generators—the "heart" of electrical systems—are seeing their operational efficiency and maintenance costs become decisive factors in plant profitability. While companies struggle to balance maximum output with operational flexibility, Mitsubishi Electric offers technological solutions that ensure high reliability while streamlining maintenance processes.

Leveraging decades of technical expertise, Mitsubishi Electric has developed air-cooled generator solutions that combine exceptional performance with high maintainability. Starting April 1, 2024, the company consolidated its generator business under Mitsubishi Generator Co., Ltd., enabling more focused operations to deliver efficient, stable power solutions for global infrastructure.

Core Technology: Redefining Air-Cooled Efficiency

Mitsubishi's air-cooled generators achieve an optimal balance between structural simplicity and performance through cutting-edge engineering, with two key technological advantages:

1. Optimized Ventilation System

For high-capacity generators, Mitsubishi employs advanced fluid dynamics analysis to develop innovative ventilation layouts. These systems precisely control internal temperature distribution, effectively preventing localized overheating while ensuring long operational life and significantly increasing power output.

2. High-Efficiency Fan Design

Addressing one of the primary causes of generator inefficiency, Mitsubishi developed compact, high-performance propeller fans. Through meticulous blade geometry optimization, these fans meet cooling requirements while minimizing wind resistance losses, achieving industry-leading efficiency of 98.8%—capturing every possible watt of energy.

Product Lineup: Comprehensive Solutions for All Needs

To accommodate diverse plant requirements, Mitsubishi offers two main generator series covering applications from small distributed energy to large industrial power generation:

• SFM (Simple Frame Modular) Series: Designed for small-to-medium power needs (below 100MVA), this modular solution simplifies installation and reduces infrastructure complexity, enabling rapid deployment for smaller plants.
• FTC (Fan-to-Cooler) Series: Serving large-scale power requirements (100MVA to 400MVA), this integrated cooling architecture ensures thermal stability during massive power output, making it ideal for grid base-load applications.

Additionally, Mitsubishi provides specialized 20MVA 4-pole generators for unique operational scenarios.

Stringent Standards: Guaranteeing Quality and Reliability

Mitsubishi generators adhere to rigorous international standards for extreme-condition performance:

• Thermal Class & Insulation: All models feature Class 155 (F) insulation with temperature rise controlled within Class 130 (B) limits, ensuring exceptional overload capacity and long-term stability.
• Operational Parameters: Supporting both 50Hz/60Hz operation with 3,000min⁻¹ rated speed and up to 21kV rated voltage, the generators seamlessly integrate with global grid infrastructures.

By transforming complex cooling logic into simplified modular designs, Mitsubishi reduces maintenance complexity and labor costs while achieving transformative efficiency gains. In an era of growing energy demands and heightened cost sensitivity, Mitsubishi's air-cooled generators represent a long-term solution balancing performance and economic viability.