Job Description

The Primary Electrical Design Engineer is responsible for the engineering and design of High Voltage (HV), Extra High Voltage (EHV), and Medium Voltage (MV) substations. The role focuses on the physical (primary) design of AIS/GIS substations, equipment selection, layout engineering, electrical calculations, and preparation of engineering deliverables while ensuring compliance with applicable standards, project specifications, and safety requirements.

- Develop primary design for AIS and GIS substations from concept through detailed engineering.
- Prepare and review Single Line Diagrams (SLDs), General Arrangement (GA) drawings, equipment layouts, sections, elevations, and plot plans.
- Design outdoor switchyards and indoor GIS substations.
- Develop busbar arrangements, conductor layouts, and equipment clearances in accordance with CEA Guideline/IEC/IEEE standards.

Electrical System Design

- Perform engineering calculations for: Power transformer sizing Busbar and conductor sizing; Earthing (grounding)



system design Lightning protection system design; Cable sizing and routing; Station service AC/DC systems; Battery sizing; Illumination calculations; Short-circuit withstand checks Busbar force calculations

Equipment Engineering

- Prepare technical specifications and datasheets for: Power Transformers Circuit Breakers Disconnectors & Earthing Switches Current Transformers (CTs) Voltage Transformers (VTs/CVTs) Surge Arresters GIS/AIS equipment Neutral Grounding Equipment Busducts Station Service Transformers HV and MV cables

Engineering Deliverables

- Single Line Diagrams (SLD)
- General Arrangement (GA) Drawings
- Switchyard Layouts
- GIS Building Layouts
- Equipment Foundation Load Inputs
- Cable Trench & Cable Tray Layouts
- Busbar Layouts
- Earthing Layouts
- Lightning Protection Layouts
- Bill of Materials (BOM)
- Material Take-Off (MTO)
- Design Reports and Calculations

Technical Review & Vendor Coordination

- Review vendor drawings, datasheets, calculations, and GA drawings.
- Evaluate technical bids and prepare Technical Bid Evaluation (TBE) reports.
- Resolve vendor technical queries and document deviations.
- Support procurement during equipment selection and approval

📌 Associate Director (Mumbai)
🏢 Aecom
📍 Mumbai