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Shin Nippon, Back Pressure Steam Turbine Generator, New, 8 MW, 60 Hz (New)

Shin Nippon, Back Pressure Steam Turbine Generator, New, 8 MW, 60 Hz

Description

  1. Overview
    1. Steam turbine generator
    2. 8.0 MW
    3. New, never used, surplus
    4. Shin-Nippon - ABB alternator
    5. 8.0 MW - 60 Hz, 13.8 kV, speed - 7800 / 1800 rpm
    6. Inlet pressure - 32 bar a = 465 psig
    7. Temperature - 342 deg. c. = 647.6 deg. f.
    8. Exhaust steam pressure - 0.12 bar a = 1.74 psig
    9. Extraction steam pressure - 8 bar a = 116.03 psid
    10. With ABB - 8.0 MW - back-end alternator, 1800 rpm, 60 Hz, 13.8 kV
  2. Technical Specification
    1. ABB type AMS 800L4P BS brushless synchronous generator rated
    2. Power = 11000 kVA
    3. PF = 0.85 (overexcited)
    4. PF = 0.9 (underexcited)
    5. Voltage = 13800 V
    6. Frequency = 60 Hz
    7. Speed = 1800 rpm
    8. For installation in safe area
    9. Designed for steam turbine
    10. Designed according to IEC 60034-1
  3. Included Accessories
    1. Standards and Site Conditions
      1. UBC4 earthquake zone classification
    2. Main Mechanical Data
      1. Clockwise direction of rotation at drive end, facing shaft end
      2. Protection of machine IP00; final IP degree depending on final duct and filter design
      3. Temperature rise, rotor within class B
      4. Temperature rise, stator within class B
    3. Excitation
      1. Main brushless exciter type GLB 600A for DC excitation complete with diode bridge, thyristors, RC circuits and control box
      2. Mini circuit breaker - PMG over current protection
      3. PMG
    4. Cooling System
      1. Cooling arrangement: IC3 A1; inlet and outlet duct through base or above from the surrounding, self circulation; air filters for the inlet openings
      2. For self- or forced-circulation air with inlet ventilation at DE and NDE side designed with air filter (F6) located directly on the generator top; the hot air outlet will be connected to air duct direct to generator frame and ventilated out from building
      3. Inlet and outlet air flange connection to external duct
      4. Maximum total air pressure drop allowed in the duct is <100 Pa
    5. Shaft Extensions
      1. Coupling half DE mounted by ABB
      2. Coupling to be supplied by others in finish machined condition, ready for assembly on machine; the coupling needs to be supplied to ABB at least 4 weeks before factory acceptance test (FAT); drawings and assembly instructions need to be sent to ABB at least 14 weeks before FAT
      3. Cylindrical shaft end with key in DE
      4. Provision for coupling guard DE
      5. Shaft extension design according customer request
    6. Bearings
      1. Bearing size 18/225
      2. Complete bearing oil connection system to common point, stainless in- and outlet, ANSI
      3. Flow sight glass for each bearing in oil outlet, stainless steel
      4. Forced lubricated sleeve bearing; bearing provided with loose oil ring
      5. Jacking oil including oil pipes, motors and pumps
      6. Lockable oil pressure reducing valve in brass
      7. Inlet oil connection at left side of machine seen from DE, location at DE
      8. Outlet oil connection at right side of machine seen from DE, location at DE
      9. Oil inlet flange: ANSI 3/4" CL 150
      10. Oil outlet flange: ANSI 3" CL 150
      11. The lube oil drain pressure must be less than or equal to the machine ambient pressure; an oil drain pressure of 200-1000 Pa lower than the bearing ambient is recommended
    7. Main Terminal Boxes and Related Accessories
      1. Heaters in main terminal box, safe area, 480 V three phase supply
      2. Main terminal box located on the right side, seen from DE
      3. Main terminal box supply cable entry from below; gland plate is removable, undrilled and of non magnetic material
      4. Standard medium air insulated main terminal box
      5. The main terminal box is delivered as a loose item, assembly on site is not included in ABB's scope of supply
      6. Line Side
        1. 3 current transformers, 3 cores, mounted in main terminal box, accuracy class 0.5 (IEC)
        2. 3 voltage transformers
        3. Earthing device 3-phase ball bolt including earthing equipment
      7. Neutral Side
        1. 3 current transformers, 3 cores, mounted in main terminal box, accuracy class 0.5 (IEC)
    8. Monitoring and Protection Accessories
      1. RTD's according to IEC 60751, class B
      2. 1x RTD in warm machine air, duplex (PT100), 3 wire, unshielded
      3. 2x RTD in cold machine air, duplex (PT100), 3 wire, unshielded (mounted at NDE + DE)
      4. 2x RTD per bearing shell, duplex (PT100), 3 wire, unshielded
      5. 6x RTD's in stator windings (3 for temperature monitoring and 3 as spare), single (PT100), 3 wire, unshielded, safe and hazardous area
      6. Differential pressure switches for air filter, one each filter
      7. Heaters in both main machine and exciter, safe area, 480 VAC 3 phase supply; the heaters should always be connected during stand still to avoid condensation
      8. Painted carbon steel junction boxes provided with undrilled gland plates; located at left side of machine facing DE
      9. Shaft earthing brush mounted at DE
      10. Vibration control proximity type Shinkawa (2 probes per bearing mounted, 90 deg apart, outboard the bearing centerline)
    9. Foundation and Installation
      1. Long sole plate (ABB std); including anchor bolts, leveling screws etc.
      2. Mounting kit including fastening screws, jacking screws and dowel pins
      3. Mounting shims in black steel, total thickness 2 mm for each machine foot
    10. Special Design and Accessories
      1. Burnishing shaft hub surface for proximity type of vibration probes, maximum combined electrical and mechanical run out 23 pm (0.91 mils) peak-to-peak
      2. Rotor sliding tool - RST2 (one covering all identical units)
      3. Slings, lift jack and rotor storage support for rotor sliding tool (one covering all identical units)
      4. Varnish of rotor coils
      5. Vibration level according to ABB standard (MDD 3AAM100425)
      6. Jack-up support 4 pcs, welded on side of generator AMS 800 rotor sliding tool RST 2
      7. Sliding plates for rotor removal of rotor by sliding, requires one hook lifting with a capacity which can handle the rotor weight, the hook motion must be along the shaft; includes slings, lift jack and rotor storage support
    11. Painting and Corrosion Protection
      1. Painting in special colour, RAL5019
      2. Standard industrial coating acc. to ISO 12944 C3
    12. Packing and Transportation
      1. Seaworthy wooden case packing
  4. Documentation
    1. Installation and maintenance manual in English language (one covering all identical units)
    2. Outline drawing 3D (one covering all identical units)
    3. Painting specification (one covering all identical units)
    4. Preliminary setting list, typical (one covering all identical units)
    5. Standard documents for machine according to MDD 3AAM100439
    6. Test procedures, according to ITP (one covering all identical units)
    7. Transportation drawing (one covering all identical units)
    8. User's manual on CD (1 copies) (one covering all identical units)
  5. Tests and Certificates
    1. According to enclosed test plan 3BSY 200003-HSX