Three-Phase Motor Breakdown Repairs & Electrical Fault Finding
Bearing squeal, insulation resistance breakdown, and single-phasing burnouts bring heavy industrial machinery to an immediate standstill. Lectro Power Systems conducts precision insulation resistance (megger) testing, winding balance diagnostics, and thermal imaging on three-phase motors across Western Australia.
Symptoms We Resolve
Common Three-Phase Motor Faults We Diagnose & Fix
Single-Phasing & Phase Loss Burnouts
Installing dedicated phase-monitoring relays to prevent motors burning out when one supply line drops.Winding Insulation Resistance Breakdown
Conducting high-voltage megger tests to identify phase-to-phase and phase-to-earth breakdown.Overheating & Thermal Overload Tripping
Isolating mechanical shaft binding, undersized cooling fans, low voltage, and phase imbalances.Terminal Box Arcing & Loose Lugs
Repairing cracked terminal blocks, re-terminating melted motor tails, and installing vibration-proof bridge links.Vibration & Bearing Current Damage
Diagnosing shaft voltage buildup from VSDs and checking bearing temperature thermistors.Contactor & Motor Starter Chatter
Replacing pitted contactor contacts, burnt magnetic coils, and loose auxiliary circuit terminals.
The Lectro Advantage
Why Choose Lectro for Three-Phase Motor Repairs
Winding insulation & balance testing
Precision diagnostic instruments to evaluate internal winding integrity before catastrophic burnouts happen.Thermal imaging analysis
Live infrared scanning to detect hot bearings, loose terminal lugs, and phase imbalances under run conditions.Fast replacement motor sourcing
Sourcing and commissioning standard foot and flange-mount industrial motors across Perth.
FAQs