RG-Z Series (Water/Hydrogen Cooled Generators)

  • Capacity

    500-1,400 MVA

  • Voltage

    Up to 27kV

  • Power Factor

    0.8 (lagging) - 0.9 (leading)



Water/Hydrogen cooled turbine generators are primarily used in thermal power plants with output of at least 600 MW that require high reliability and long-term continuous operation. The stator end winding employs a structure resilient to loosening due to long-term operation. Materials and construction boasting durability against centrifugal forces has been applied to the rotor.

As cooling water flows through the stator conductor, the materials and construction used make it less likely for the inside of the conductor to become clogged or corroded.

Mitsubishi Power also provides training that covers operation and maintenance, as well as a long-term service agreement (LTSA).

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Water/Hydrogen Cooled Turbine Generator


  • High reliability with support for long-term continuous operation
  • Technology for higher capacities (1,400 MVA class)
  • Supports gas turbines, steam turbines and combined cycle turbines


Generator Capacity 500-1,400 MVA
Voltage Up to 27kV
Applicable Standards IEC 60034, IEEE C50.13, JEC-2130
Insulation Class 155 (F) or 130 (B)
Excitation System Static
Options Supports outdoor installation, transportation by freight car and leading power factor operation (power factor of 0.8)