Saudi Arabia
Performed preventive and corrective maintenance on power and distribution transformers (13.8kV to 380kV), including oil leakage repairs, ensuring minimal downtime, optimal performance, and strict adherence to environmental safety standards.
Conducted routine inspections, testing, and servicing of OLTC mechanisms, including diverter switches, selector switches, and motor drive assemblies.
Gained hands-on experience with OLTCs from major manufacturers including (MR), and ABB.
Executed oil filtration, oil replacement, oil filing under vacuum and oil sampling for Dissolved Gas Analysis (DGA) and other oil test to assess dielectric integrity and detect incipient faults.
Supervised a team of technicians in identifying leakage points at Gasket joints, flanges, radiators, conservator tanks, and bushings.
Oversaw the replacement of damaged gaskets, O-rings, and valve seals, and ensured correct torque during reassembly.
Performed pressure and vacuum leak tests post-repair to confirm sealing integrity.
Reduced oil losses and environmental risk by implementing proactive leak detection and preventive sealing measures.
Successfully led the overhaul and repair of over 50 power transformers and 50+ OLTC units, including critical leakage rectification on 15+ units significantly reducing unplanned downtime and achieving zero post-maintenance failures
Supervised and executed transformer overhauls, including core-coil inspections, gasket replacements, bushing replacements, and oil retro-filling.
Coordinated with electrical engineers and safety officers to ensure all maintenance work adhered to regulatory standards (such as ISO/OSHA/NEC/NFPA).
Testing of transformer such as Transformer Turns Ratio Test, Winding Resistance Test, Insulation Resistance Test, Tan delta, Sweep Frequency Response Analysis (SFRA), Magnetic Balance Test etc.
