Skip to main content

MITSUBISHI HITACHI POWER SYSTEMS, LTD.

MHPSCA provides specialized repair services for turbines and generators used in the power generation industry, and can provide a variety of field services at the customer site. We have a proven track record of overhauls, repairs, refurbishments and upgrades at power stations around the world. We are able to service steam, gas, and water turbines and generators.

Our portable equipment includes:

  • Large low speed dynamic balancing machine
  • Large rotor lathe
  • Portable field balance equipment for in-situ high speed balancing of turbine and generator rotors
  • Stock of large size taps and drills
  • Diaphragm nozzle repair welding stations

Examples of our capabilities include:

  • Steam Turbines
    • Rotor low speed dynamic balancing
    • Rotor bucket replacement
    • Rotor shroud cover, tie wire and fork pin replacement
    • Rotor machining
    • Large casing machining and weld repair
    • Seal ring replacement
    • Field machining of valve and turbine casing
    • Removal of turbine and valve casing high temperature stud bots, including oversize
    • tapping of female threads if required
    • Control and stop valve stellite welding
    • Diaphragm radial fin replacement
    • Diaphragm nozzle partition repair and chrome carbide coating
    • Turbine journal and thrust bearing re-babbitting
    • Turbine Journal re-machining
  • Generators
    • Rotor and stator rewind
    • Rotor Rings-off inspection
    • Stator and Rotor Inspection
    • Stator and Rotor Repairs
    • Collector Ring Machining
    • Hydraulic integrity testing (HIT)
    • El-Cid testing
    • Stator Rewedge
    • Core Loop Testing
    • Capacitance Mapping
    • Stator End Windings Bump Testing (Vibration Analysis)
    • Stator winding water flow testing
    • Tan Delta (Doble) Testing
    • Offline Partial Discharge Testing
    • AC Hipot Testing up to 50KV/500KVA
    • High Voltage Bushing Refurbishment
    • High Voltage Bushing Replacement & Installation
    • Collector Ring Replacement
    • DC Hipot Testing
  • Water Turbines
    • Refurbishment of mechanical components, including repairs to operating rings, head covers, wicket gates, bottom rings, scroll cases, draft tubes, servo motors, shafts and discharge rings; runner refurbishment
  • Gas Turbines
    • Turbine assembly and commissioning
    • Hot gas path component inspection
    • Rotor Blading
    • Maintenance and operational support
    • Combustor Inspections
    • Major Overhauls