Title Page

  • Project and Turbine Number:

  • Customer:

  • Site:

  • Generator Serial Number:

  • Conducted on

  • Prepared by

  • Personnel

  • Addition Personnel

Job

  • Tolerances

    Bearing Journal DE/NDE
    150 (+.040/-0.015

    Bearing Housing DE/NDE
    320 (+0.036)-0

    Heater Resistant: Roughly 400 Ohms for Hitachi. Roughly 500Ohms for Winergy and Lohers.
    PT100's Resistance: Roughly 100 Ohms

1. Generator Details:

  • Serial Number

  • Name Plate

  • Generator Type

2. Generator Exterior

  • Generator Conditon Tests:

  • PT 100 Sensors and Generator Heaters passed Resistance Test?

  • Generator Fans operating properly?

  • Micro Brush Switches Pass initial continuity test?

  • If no, check off when corrected.

  • Initials

  • Passed Pre Hi-Pot test on both stator and rotor?

  • Passed Post Hi-Pot test on both stator and rotor?

  • Shaft run out of spider within .05mm tolerance?

  • CMS Holes drilled on both NDE and DE bearing end plates?

  • Finished photos of CMS with paint removed

  • Exterior Before

  • Findings

  • Exterior After

  • Completed:

  • Initials

  • Stator Box Before

  • Stator Box After

  • Completed:

  • Initials

  • Rotor Box Before

  • Rotor Box After

  • Completed:

  • Initials

3. Brush Box

  • Brush Box Before

  • Brush Box After

  • Completed:

  • Initials

4. Slip Ring

  • Original Slip Ring SN

  • If reusing original slip ring, has it passed the Resistance test and is with in the phase/ground ring wear tolerance?

  • Original Slip Ring SN

  • Replacement Slip Ring SN

  • Replacement SN

5. Generator - Internal

  • Drive End Internal Before

  • Drive End Internal After

  • Completed:

  • Initials

  • Non-Drive End Internal Before

  • Non-Drive End Internal After

  • Completed:

  • Initials

6. Bearings

  • Note: The serial Number is not the 6330,6326' or the 6332. These are the model number. The serial is usually etched in and is 2 to 5 numbers.

  • Drive end Original Bearing SN

  • Initials

  • Drive end Replacement Bearing SN

  • DE Bearing Housing width and journal in tolerance?

  • Completed:

  • Initials

  • NDE Original Bearing SN

  • Initials

  • NDE Replacement Bearing SN

  • NDE Bearing Housing width and journal in tolerance?

  • Completed:

  • Initials

7. Wye Ring

  • Note: WYE ring repair not required on Vem, Loher or Winergy.

  • Did it require a wedge repair?

  • Did the generator require a re-lead?

  • Does the generator require a wye ring retrofit/repair?

  • Exposed Connections prior to drilling or cutting (3)

  • Crack(s) found?

  • Pictures of Crack(s)

  • Initials

  • Isolated Connections with silver plating (3)

  • Initials

  • Pictures of Shim Stacks(3)

  • Bolt length position 1:

  • Shims for position 1:

  • Bolt length position 2:

  • Shims for position 2:

  • Bolt length position 3:

  • Shims for position 3:

  • Completed Installation

  • Completed:

  • Initials

  • Notes

8. Balance

  • Note: Balancing not required on Vem, Loher or Winergy.

  • Does the generator require balancing?

  • Initial Imbalance (mm/s)

  • Initial Imbalance (mm/s)

  • Weight(s) Applied (g) and location:

  • Final Balance Amplitude < 0.08 mm/s

  • Final Balance

  • Completed:

  • Initials

9. High Speed Coupler

  • KTR 80.00mm (+-.30)
    Flender Flush

  • Before

  • After

  • Completed:

  • Initials

10. Additional Notes/Findings

  • Notes

  • Findings

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