HV Circuit Breaker Specialist

About this role

The HV Circuit Breaker Specialist will be based in Anambra, Nigeria, and assigned to a substation site to oversee the installation, testing and commissioning of 132 kV and 330 kV circuit breakers as part of a turnkey project to upgrade five substations. The role involves coordinating with HV, protection and customer teams and is open to all nationalities.

What you would do

• Supervise installation and assembly of 132 kV and 330 kV circuit breakers per drawings and OEM instructions.
• Perform timing, contact resistance and operating mechanism tests using OMICRON equipment; witness insulation and SF6 tests where applicable.
• Conduct functional tests, interlocks, alarms and trip/close sequence verification.
• Verify protection interfaces, SCADA signals and control system integration.
• Record test results and prepare commissioning reports and checklists.
• Identify defects and manage punch lists; support corrective actions.

What they are asking for

• Minimum 7 years of experience in HV circuit breaker installation, testing and commissioning.
• Experience with 132 kV and 330 kV AIS/GIS circuit breakers.
• Knowledge of HV circuit breaker mechanisms and testing methods; ability to operate OMICRON CIBANO 500, CMC 356, CMC 256 plus.
• Knowledge of IEC standards and OEM procedures; relevant training certificates mandatory.
• English language proficiency.
• Open to all nationalities.

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