Hydro Turbine
Services


GENERATOR INSPECTION | TESTING | CONDITION ASSESSMENT 

 TURBINEPROS IN-HOUSE GENERATOR SERVICES & CAPABILITIES 

Comprehensive Generator inspection, testing, and condition assessment

History of Maintenance & Services

Visual Inspection

Rotor

  • Shaft
  • Hub & Spider [especially high stress spider locations]         
  • Rim Support Ledge
  • Brake SegmentsScreenshot 2026 05 13 at 5.03.19 PM
  • Field Winding Connections
  • Amortisseur Winding
  • Exciter or Collector
  • Excitation Buss
Stator
  • End Winding
  • Jumper System
  • Blocking Arrangement & Lashing
  • Sole Plates

Air Gap Measurement 

In Field Silver Plating of Leads 

Electrical Tests

Performed to IEEE43-2000 Standards

Rotor
  • Pole Drop [120/240 vac] 
  • Insulation Resistance [PI/Megger] 
  • Winding Resistance
  • DC Step Test [absorption/ ramp]
  • DC High Potential Test, Phase-to-Phase, Phase-to-Ground
  • EL_CID [electromagnetic core imperfection detection] 
  • Core Loop Test
Stator
  • Insulation Resistance [PI/Megger] 
  • Winding Resistance
  • DC Step Test [absorption/ ramp]
  • DC High Potential Test, Phase-to-Phase, Phase-to-Ground
  • EL_CID [electromagnetic core imperfection detection] 
  • Core Loop Test

Rim Ledge Non-Destructive Examination

liquid penetrant & ultrasonic (as access permits)

Rim Ledge & Pole Attachment Remaining Life Assessments

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