Commissioning Engineer – 275kV Substation
12 days ago
Glasgow
Rubicon Consulting is currently recruiting for Commissioning Engineer on a 4 Month Contract, based in Scotland. Role Summary We are seeking an experienced Commissioning Engineer to support the delivery and energisation of a 275kV substation project. The successful candidate will be responsible for the testing, commissioning, and handover of high-voltage plant and protection systems, ensuring compliance with National Grid/SSE/UKPN and project-specific technical standards. Key Responsibilities • Lead and execute commissioning activities on 275kV AIS/GIS substations in accordance with approved commissioning procedures and safety rules., • Carry out testing and commissioning of HV switchgear and circuit breakers (SF6, vacuum, GIS/AIS) including timing tests, contact resistance, functional checks, and interlocking verification., • Perform commissioning of power transformers (275kV/132kV or 275kV/33kV) including pre-energisation checks, ratio testing, vector group verification, winding resistance, and protection scheme validation., • Conduct primary and secondary injection testing, CT/VT testing (mag curves, polarity, burden), and full protection scheme functional testing., • Commission and configure Protection & Control systems including distance, differential, overcurrent, earth fault, REF, busbar protection, and intertripping schemes., • Test and validate control panels, marshalling kiosks, SCADA interfaces, alarms, and remote signalling systems., • Support energisation activities, fault-finding, and resolution of commissioning defects., • Review drawings, protection settings, schematics, and commissioning documentation., • Produce detailed commissioning reports, red-line drawings, and handover documentation., • Ensure strict compliance with CDM regulations, safety rules, and HV authorisation procedures. Requirements • Proven experience commissioning 275kV transmission substations., • SSE CAT 3 Authorisation (Essential), • Strong working knowledge of AIS and/or GIS switchgear systems., • Hands-on experience commissioning power transformers at transmission voltage levels., • Extensive experience in Protection & Control commissioning, including relay testing, • Competent in primary and secondary injection testing using Omicron or similar test equipment., • Ability to interpret SLDs, schematic diagrams, wiring diagrams, and protection logic drawings., • HV Authorisation (e.g., National Grid, SSE, or DNO equivalent) preferred., • Strong fault-finding and problem-solving skills in live substation environments. Our Company Rubicon Consulting is a Talent management consultancy which helps you to optimise business performance and competitive advantage by choosing the right people first time