Maximize availability & Reliability
QAZ maintenance solution ranges from basic recondition to complete rebuilds both In-house as well as On-site..
- Wedge mapping and Re-wedging
- Conduct static electrical tests on stator, rotor and exciter windings
- ELCID test on stator
- Inspection and NDT on rotor retaining rings overhauling stator and rotor
- Replacement of bearings and hydrogen seals
- Revision of generator terminals
Stator Services Includes..
- Stator partial rewind
- Stator Complete Rewind
- Stator re-wending
- Stator core Re-Stacking
- End turns Repair
- Bar Abrasion Repair
- Corona Repair
- Corona Suppression
- Bolt Tightening
- HV bushing change outs
Rotor Services Includes..
- Rewind with old Copper
- Rewind with new Copper
- Rotor Wedge Replacement
- Retaining ring removal
- RR insulation replacement
- Winding distortion repair
- Low speed balancing
- High speed balancing
Generator Testing Includes..
- Stator DC electrical test
- Stator AC electrical test
- Stator mechanical test
- Stator core Electrical test
- Stator core mechanical
- Rotor DC electrical test
- Rotor AC electrical test
- Exciter Test and Inspection
- Accessories integrity check
Exciter Service includes..
- Test and Inspection
- Condition evaluation
- Repair and refurbish
- Rewinding
- Diode Integrity Check
- Fuse Integrity
- Capacity Integrity Check
- Collector rings
- Bearings
- Gas coolers
- Carbon brushes
- Stator bars
- Retaining rings
- Winding kit
