Mitsubishi, 75MW, 1962, 13800V, 60Hz, 3600 RPM

Description

  1. Overview
    1. Mitsubishi steam turbine generator 75 mw
    2. Year: 1962
    3. 1992 changed new rotor
    4. Total hour meter 370,000 hours
    5. Every 2 years make maintenance check
    6. Every 4 years make overhaul
    7. Last overhaul year and data will checking now
    8. Stopped operation 2013 october
  2. Electrical Specifications
    1. 88235 kva, 13800 volts
    2. 60 hertz
    3. 3600 rpm
  3. Steam Conditions
    1. Number of turning 135 times
    2. Steam pressure 10.3 mpa
    3. Steam temperature 530 degree c
    4. Inlet steam pressure for front of main stop valve: 102 kilograms/cm2g, temperature for front of main stop valve: 538 degree c
    5. Reheating steam condition: pressure for front of reheat stop valve: 27.8 kilograms/cm2g (at the time of normal output) temperature for front of reheat stop valve: 538 degree c
    6. Ventilation condition: degree of vacuum (incase of sound sir pressure as 760mhg at ventilation room) 722 mh/g
    7. Extraction number of step 5 steps
    8. Water supply temp (at the time of normal output) 233.1 degree c
    9. Allowance steam condition: allowance pressure (front of main stop valve) average allowance pressure incase of continuous moving: 107 kilograms/cm2g
    10. Maximum allowance pressure: 112 kilograms/cm2g
    11. Emergency time maximum average allowance pressure: 132 kilograms/cm2g
    12. Allowance temperature (front of main stop valve and reheat stop valve) average allowance temperature at the time of continuous moving: 538 degree c
    13. Maximum allowance temperature at 546 degree c
    14. At emergency time (remark2) 551 degree c, (remark3) 566 degree c
    15. Remark 2 not more than 400 total hours at the time of moving 12 months continuous moving
    16. Remark 3 not more than 800 total hours
  4. Turbine Specifications
    1. Turbine number of steps: high temperature turbine inpulse steps (cartis step) 1 step (2 lines)
    2. Reverse step 12 steps
    3. Middle pressure turbine reverse step 15 steps
    4. Low pressure turbine reverse step 2 x 8 steps
    5. Rated gas pressure 2 kilograms/cm2
  5. Weights and Dimensions
    1. Approximate weight: high, middle pressure turbine outer room upper side about 16 tons
    2. Low pressure turbine outer room upper side about 12 tons
    3. Low pressure fin upper side about 13 tons
    4. High middle pressure turbine rotor about 12 tons
    5. Low pressure turbine rotor about 13 tons
    6. Rotor 120 tons, starter 26 tons, thers 13 tons
    7. Turbine package size: 10.09mtr h x 4 mtr+0.64 x 2.8 mtr
  6. Scope of Supply
    1. Generator part
    2. Control unit
    3. Part of boiler (material cokes)
    4. Duplication oil supply unit
    5. Other annexed equipment
    6. Condenser part to be out of scope since present owner using this part for their new turbine generator
    7. Boiler part to be take out only part to part since too ig size and impossible to take out all
  7. Additional Notes
    1. Cooling water was using sea water (condenser part is out of scope)
    2. Boiler size is about 7 floor building which we think it is difficult to take out and may have to make new and maybe only some inside part can be remove