Diesel Generator Rewinding & Service
We provide alternator rewinding, Automatic Voltage Regulator (AVR) calibration, and laser engine alignment for industrial and commercial diesel generators, ensuring dependable prime and emergency standby power across Zambia.
Our team rewinds main stators and rotating exciters using Class H insulation and reinforced end-turn banding against centrifugal forces. We calibrate AVRs for tight ±0.5% voltage regulation and precision laser align the engine crankshaft to prevent vibration.
Diesel Generator Rewinding & Overhaul Service Shop
- •Complete rewinding of main alternators, exciter stators, exciter rotors, and auxiliary permanent magnet generator (PMG) pilots.
- •High-speed dynamic balancing of complete rotating alternator rotor shafts and exciter assemblies to eliminate mechanical harmonics.
- •Class H (180°C) and Class H+ moisture-resistant insulation systems with reinforced end-turn banding against severe centrifugal stress.
- •Electromagnetic core loss and surge comparison testing of stator laminations to identify inter-sheet short circuits and hot spots.
- •Testing, matched replacement, and heat-sink mounting of rotating three-phase diode bridges and metal oxide varistor (MOV) surge suppressors.
- •Automatic Voltage Regulator (AVR) diagnostics, tuning, replacement, and stability calibration delivering ±0.5% steady-state voltage regulation.
- •High-precision laser optical shaft alignment between diesel engine flywheels and alternator drive plates to eliminate bearing sideload.
- •Installation of premium insulated anti-friction drive-end and non-drive-end bearings engineered to handle high axial and radial thrust.
- •Vacuum Pressure Impregnation (VPI) with high-bonding thermosetting varnishes to seal alternators against tropical humidity and airborne dust.
Other Services
Explore our full spectrum of specialized electrical rewinding and overhaul capabilities.
