Electrical Design Engineer – EHV Substations & Transmission Lines

Summary

Electrical Design Engineer with 10 years of experience in the design, engineering, and execution of Extra High Voltage (EHV) substations (AIS/GIS, 132kV to 765kV) and transmission line projects. Skilled in preparing detailed designs, technical specifications, and system studies, ensuring compliance with utility standards and international codes. Strong expertise in preparing engineering drawings, conducting load/short-circuit studies, and coordinating across multidisciplinary teams to deliver projects on time and within budget.

Key Responsibilities

• Substation Electrical Design (AIS/GIS 132kV 765kV):
• Preparation of Single Line Diagrams (SLD), control & protection schemes, and interlocking logics.
• Busbar, earthing, lightning protection, and auxiliary power system design.
• Layout design of switchyards, equipment positioning, and cable routing.
• Selection and sizing of equipment: CTs, PTs, Circuit Breakers, Isolators, Surge Arresters, Transformers, etc.
• Transmission Line Electrical Design (132kV and above):
• Route survey, line profiling, and tower spotting.
• Conductor, earth wire, and OPGW sizing and optimization.
• Electrical clearances as per CEA/IEC standards.
• Insulation coordination, lightning performance, and corona/EMF studies.
• System Studies & Analysis:
• Load flow, short circuit, and protection coordination studies.
• Earthing grid design and step/touch potential analysis.
• Reactive power compensation, insulation coordination, and thermal rating calculations.
• Project Management & Coordination:
• Review and approval of vendor/contractor electrical design documents.
• Preparation of tender documents, BOQs, and technical specifications.
• Interface coordination with civil, protection, and SCADA teams.
• Ensuring designs meet IS, IEC, IEEE, ANSI, and utility-specific requirements.
• Quality & Compliance:
• Conducting FAT/SAT for electrical equipment.
• Supporting site teams during installation, testing, and commissioning.
• Ensuring safety and reliability in design and execution phases.

Key Skills

• Substation design (AIS/GIS up to 765kV)
• Transmission line design (132kV and above)
• Power system studies (ETAP, DIgSILENT, PSS/E)
• Electrical design tools (AutoCAD, E-Plan, CYMCAP, PSCAD)
• Protection & control schemes
• Earthing & lightning protection design
• Knowledge of IS, IEC, IEEE, ANSI, and CEA standards

Career Highlights

• Successfully completed electrical design for multiple EHV substations (132kV 400kV) and associated transmission lines.
• Optimized conductor and tower design for 200+ km of 220kV/400kV transmission lines, achieving cost savings without compromising reliability.
• Led the electrical design review for GIS substations up to 765kV, ensuring compliance with international standards.
• Developed standard design templates and processes, reducing engineering cycle time by 2025%.