Sean Gill

Qualified Electrical Artisan with over 25 years of experience in mining and heavy industrial environments. Extensive hands-on experience with medium voltage (MV) and low voltage (LV) systems, substations, underground equipment, and plant maintenance. Proven ability to fault find, repair, and maintain critical systems under pressure to minimise downtime.

Strong background in mentoring apprentices and developing practical technical skills. Reliable, safety-conscious, and highly experienced in breakdown environments.

Maintenance Electrician at Super Stone Mining / Kimberley Ekapa Mining (2008-11 – 2026-02)

• Maintained substations and transformers to ensure reliable power distribution
• Carried out MV switching, terminations, and maintenance, including inspection of tripping batteries, servicing of tripping relays, closing coils, and protection equipment; fault finding and trip analysis; and reading and interpretation of MV reticulation schematics.
• Installed and maintained electrical reticulation systems
• 120vdc battery operated locomotives. Electronic transistor controls circuits. Maintain 120vdc battery charging units.
• Maintained pumps and water level control systems
• Conducted weekly maintenance on dewatering slip ring pumps up to 750kw, 5500v
• Performed monthly maintenance on main ventilation fans up to 650kw, 5500v
• Fault finding on single and three-phase circuits
• Oversaw the installation, wiring, programming, and ongoing maintenance of VSDs and soft starters. (WEG and Siemens)
• Conducted daily inspections and preventative maintenance
• Installed and tested AC and DC motors
• Maintained conveyors, screens and plant systems
• Panel wiring and new electrical installations
• Maintained UPS and inverter backup systems
• Performed standby duties and breakdown response

Electrician at Trackless Mining (Underground - Sandvik Mining & Construction) (2004-06 – 2008-10)

• Maintenance of underground electrical equipment
• Worked on drill rigs (525V systems)
• Maintained loaders (24V DC systems)
• Responsible for electro-hydraulic braking systems
• Maintained alternators, starters, lighting and warning systems
• Performed auto-electrical maintenance
• Standby duties and breakdown response

Maintenance Electrician at PPC Lime (1996-01 – 2004-05)

• Maintenance of all plant electrical equipment
• Worked on conveyors, screens and substations
• Maintained transformers and motor systems
• Worked on AC/DC and slip ring motors
• Oversaw the installation, wiring, programming, and ongoing maintenance of VSDs and soft starters. (WEG and Siemens)
• Panel wiring and new installations
• Maintained UPS and inverter systems
• Actuator maintenance
• Standby duties

Electrician at Super Stone (2012-11 – 2013-09)

Gold Exploration Project

• Wired camp, workshop, office and plant
• Installed and connected generator power systems
• Worked in gold recovery plant – red area (Knelson, sluice box, jig machines)

Matric – Benoni High School

N4 in Supervisory Management, Electrotechnics, Industrial Electronics, Engineering Science – National Nated Qualifications

N5 in Industrial Electronics, Supervisory Management – National Nated Qualifications

N6 in Supervisory Management – National Nated Qualifications

Electrical Apprenticeship – PPC Cement, Jupiter (1992-01 – 1995-12)