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Generator
Hydrogen-cooled Generators
Mitsubishi Electric hydrogen-cooled generators are highly efficient and cover the widest output range, up to 900MVA. The compact frame size is ideal for rail transportation.
Note: Power-generator business was transferred to Mitsubishi Generator Co., Ltd on April 1, 2024. Click here for details.
Specifications
| Output | ~900MVA class |
|---|---|
| Voltage | ~25kV |
| Thermal insulation class | Class 155 (F) |
| Temperature rise | Class 130 (B) |
| Rotational speed | 3,000min-1/ 3,600min-1 |
| Frequency | 50Hz / 60Hz |
| Efficiency | ~99.0% |
System configuration
Cooling Structure
Latest Technologies
Higher efficient VP-X Series turbine generators
Utilizing technologies that improve generator cooling, raise efficiency even higher and enable
a smaller, more compact design, the world largest output 870MVA generator has achieved
world-leading high efficiency of 99%.
*As of December 8, 2014, based on in-house research.
Typical specifications of generator developed
| Maximum output | 870MVA |
|---|---|
| Power factor | 0.90 |
| Rotational speed | 3,600min-1/60Hz |
| Efficiency | 99% |
| Cooling system | Hydrogen |
Compact frame design
Smaller generator diameter realized using compact gas cooler
High-performance gas cooler
Fin shape changed to reduce size
High-efficiency fan
Fan efficiency improved, realizing higher pressure and larger airflow capacity Stator and rotor cooling performance improved
Electromagnetic 3D FEM analysis
Optimized design by utilizing 3D FEM analysis for evaluation of electrical loss and electromagnetic force, etc.
