AECOM Enterprise Capabilities is excited to invite applications for the role of Principal Engineer - HV Substations Primary to enhance our team in Spain.The successful candidate will play a pivotal role in the design and delivery of primary electrical systems for transmission and distribution projects. Responsibilities may include, but are not limited to:Designing primary substation systems, featuring AIS/GIS configurations, transformer installations, circuit breaker selection, busbar arrangements, switchgear layouts, and disconnectors for voltages up to 800kV.Creating single-line diagrams (SLDs), general arrangement (GA) layouts, equipment sizing, and layout plans for substations and transmission systems.Conducting short-circuit force calculations, busbar sizing, fault current analysis, and equipment protection design to ensure system stability and safety under fault conditions.Designing earthing systems, including grounding layouts, ground grid systems, and lightning protection for substations.Integrating HVDC and HVAC systems, including converter stations, ensuring compatibility with the overall substation design.Developing transformer layouts, including oil containment, busduct routing, and secondary system interfaces.Optimizing substation layouts for both new and upgraded installations, considering space constraints, equipment accessibility, and construction considerations.Reviewing and developing control and protection systems for primary substations, ensuring coordination with secondary systems and compliance with grid operator requirements.Collaborating with civil engineering teams to design and integrate foundations, steel structures, and electrical cable routes for seamless integration with primary systems.Creating equipment specification documents, bill of materials (BOM), and providing procurement support to ensure the selection of appropriate equipment as per project needs.Preparing electrical interconnection diagrams, termination diagrams, cable schedules, and other supporting documentation for the installation and operation of primary systems.Conducting detailed design and reviews of auxiliary systems, such as cooling systems, auxiliary power supplies, and battery systems for substations.Designing underground cable systems, including sizing, routing, and integration into existing networks, particularly for HV cable systems.Coordinating with external vendors and contractors to ensure the supply and installation of equipment in line with design specifications and project requirements.
Mar 1, 2026