Details of HydroTech Services


Grand Coulee Dam - WA
Unit # 24 Stator water-cooled bar replacement

Stator And Rotor Rewinding
  • We supply winders with hand tools to perform a complete on-site rewind.
  • Taping, finishing, painting
  • Insulating varnish/epoxy coatings

Existing Stator Core Repair

  • Diagnostics, repair, removal, installation and testing
  • Loop test
  • Install new or recovered laminations
  • Insulate main and neutral leads and circuit rings
  • Install slot wedges, fillers, ripple springs, RTD's, etc.
  • Install owner-purchased PDA systems


McNary Dam - OR
Complete Rewind


Mt. Elbert
Bureau of Reclamation - CO
Re-Wedge

Existing Rotor Repair On-Site

  • Replace armortisseur windings
  • Replace shorting bars
  • Replace pole collars
  • Re-insulate main rotor leads
  • Perform pole drop test

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