Description:
We are inviting applications from a qualified and highly experienced Electrical Transformer Maintenance and Testing Electrician with mandatory experience in tap changers and protection systems on 1MVA to 20MVA transformers.Minimum Requirements:
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Qualified Electrician (Trade Test certified)
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Minimum 5 years’ proven experience in transformer maintenance and testing
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Demonstrated experience working on 1MVA – 20MVA transformers
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MUST have hands-on experience in tap changer maintenance (OLTC and/or OCTC)
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MUST have experience in transformer and feeder protection systems
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Strong technical knowledge in:
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Protection relays (overcurrent, earth fault, differential, Buchholz, REF, WTI/OTI, PRD)
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Tap changer inspection, servicing, adjustment, and fault finding
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Transformer oil sampling, testing, and purification
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Electrical testing (IR, TTR, winding resistance, tan delta, etc.)
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Preventative and corrective maintenance
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Valid driver’s license (mandatory)
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Sound understanding of OHS Act, electrical safety regulations, and applicable standards
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Ability to work independently and under pressure Key Responsibilities:
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Perform planned and breakdown maintenance on transformers (1MVA–20MVA)
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Conduct tap changer servicing and fault diagnosis
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Inspect, test, and verify transformer protection systems and associated relays
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Interpret test results and compile technical maintenance reports
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Ensure compliance with safety, quality, and company procedures
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Assist with transformer installation, commissioning, and repairs Added Advantage:
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MV switching authorization
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Protection relay testing and commissioning experience
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Experience in municipal, utility, or industrial power environments
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First Aid, Working at Heights, and HV safety certification Employment Type:
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Contract
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Market-related remuneration, commensurate with experience
Applications: queries@wnaap.co.za (email CV and qualifications)
Closing Date: 28/02/2026
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