SSDG

  1. For the SSDGs, state the following ratings: KW; Volts; Amps; RPM; Hz; and Power factor?
    • 2500 kw
    • 450 Volts
    • 4009 Amps
    • 900 RPM
    • 60 HZ
    • .8PF
  2. Explain the difference between selective and selected tripping.
    • Selective – is breaker trips nearest to the fault
    • Selected – trying to find a fault.
  3. On the SSDG what does the attached L/O pump supply oil to?
    • Main bearings
    • Pistons
    • Connecting Rods
    • Lifters
    • Camshaft
    • Crankshaft
    • Rocker Arm Assembly
    • Piston Cooling Nozzle
    • Turbocharger.
  4. What are auto shutdowns for SSDG?
    • Seawater - 5.1 psi
    • Jacket water - 228 deg
    • Crankcase pressure - .09 in of vac
    • Overspeed - 113%
    • L/O - 38 PSI
  5. How many Load Centers (LC) are there and how are they numbered?
    • 16 Load Center
    • 8 port, 8 starboard
    • The first number of the load center is 1-8. 1-6 run forward to aft and 7-8 are above the main deck.
  6. What is a split plant?
    1 SSDG and 1 STBY per bus
  7. SSDG JW should be at what temperature prior to starting?
    No lower than 115 F
  8. Why should you not operate SSDG for an extended period at reduced load?
    May cause oil consumption and carbon buildup in the cylinders
  9. What is the normal speed for SSDG?
    900 rpm
  10. What is the speed trip for SSDG?
    113% rated
  11. What is the normal crankcase pressure for SSDG?
    .04 psi
  12. What is the trip setting for SSDG crankcase?
    .1450 psi
  13. What is the normal SSDG L/O filter DP?
    0-10 psi
  14. What is the alarm setting for SSDG L/O filter DP?
    11 psi
  15. What is the normal SSDG L/O pressure?
    65 psi
  16. What is the alarm setting for SSDG L/O pressure?
    46 psi
  17. What is the trip setting for SSDG L/O pressure?
    38 psi
  18. What is the normal SSDG L/O temperature?
    185 F
  19. What is the alarm setting for SSDG L/O temperature?
    198 F
  20. What is the normal cylinder exh temperature for SSDG?
    734-968 F
  21. What is the alarm setting for cylinder exh temperature for SSDG?
    1,022 F
  22. What is the maximum cylinder diff temp for SSDG?
    150 F
  23. What is the maximum SSDG F/O pressure?
    155 psi
  24. What is the SSDG F/O pressure alarm setting?
    58 psi
  25. What is the normal air intake manifold pressure for SSDG?
    31-39 psi
  26. What is the normal temperature for SSDG JW outlet temp?
    201-206 F
  27. What is the alarm setting for SSDG JW outlet temp?
    217 F
  28. What is the trip setting for SSDG JW outlet temp?
    228 F
  29. What is the normal JW pump discharge pressure for SSDG?
    26-33 psi
  30. What is the alarm setting for SSDG JW pump discharge pressure?
    10 psi
  31. What is the normal SW pressure for SSDG?
    20-50 psi
  32. What is the alarm setting for SSDG SW pressure?
    10 psi
  33. What is the trip setting for SSDG SW pressure?
    5.1 psi
  34. What is the normal after clr out temp for SSDG?
    89-100 F
  35. What is the normal starting air pressure for SSDG?
    450 +- 5
  36. What is the normal bearing temp (engine end) for SSDG?
    0-184 F
  37. What is the alarm setting for bearing temp (engine end) for SSDG?
    185 F
  38. What is the normal air clr out for SSDG?
    0-175 F
  39. What is the alarm setting for SSDG air clr out?
    185 F
  40. What is the normal air clr in for SSDG?
    0-301 F
  41. What is the alarm setting for SSDG air clr in?
    302
  42. What is the normal stator temperature for SSDG?
    0-265 F
  43. What is the alarm setting for SSDG stator temperature?
    266 F
  44. What is the normal L/O pressure for SSDG?
    17-20 psi
  45. What is the alarm setting for SSDG L/O pressure?
    6.1 psi
  46. What happens when a generator circuit breaker is opened?
    Cooldown state for 5 minutes
Author
EDJAN
ID
323899
Card Set
SSDG
Description
SSDG
Updated