Job Description

Position Title

Substation Design Engineer (Electrical)

Position Summary

This position is responsible for designing, developing, and delivering primary electrical systems for Extra High Voltage (EHV) substations (132kV and above), ensuring compliance with national and international standards, client specifications, and project timelines.

Key Accountabilities / Responsibilities

1. Design & Engineering

• Prepare detailed designs for primary electrical systems including busbars, switchgear, transformers, isolators, circuit breakers, surge arresters, and earthing systems.
• Develop single line diagrams (SLDs), general arrangement drawings (GAs), and equipment layouts.
• Perform short-circuit, load flow, insulation coordination, and fault level studies.
• Design earthing and lightning protection systems for substations.
• Design Underground EHV Cables and accessories with routing
• Ensure designs comply with IEC, IEEE, IS, and utility-specific standards.

1. Documentation & Deliverables

• Prepare technical specifications, datasheets, and bill of materials (BOM).
• Review vendor drawings and ensure alignment with project requirements.
• Support preparation of tender documents and technical bid evaluations.
• Maintain design records and ensure version control of engineering documents.

1. Coordination & Collaboration

• Work closely with civil & secondary (protection & control) design teams.
• Liaise with clients, consultants, and vendors for technical clarifications.
• Provide engineering support during procurement, manufacturing, and installation phases.

1. Quality & Compliance

• Ensure designs meet safety, reliability, and performance standards.
• Conduct design reviews and risk assessments.
• Support factory acceptance tests (FAT) and site acceptance tests (SAT).

1. Project Execution Support

• Provide technical guidance during construction, erection, and commissioning.
• Resolve site-related design issues and propose corrective actions.
• Participate in project progress reviews and ensure timely delivery of engineering outputs.

Critical Success Factors - Essential

• 7–10 years of experience in design engineering of EHV substations (132kV, 220kV, 400kV, or higher).
• Hands-on experience with protection and control system design, relay coordination, and SCADA integration.
• Proficiency in AutoCAD, MicroStation, or similar CAD tools.
• Familiarity with ETAP, or similar power system analysis software.
• Strong knowledge of IEC, IEEE, IS, and utility standards.
• Understanding of GIS (Gas Insulated Substation) and AIS (Air Insulated Substation) technologies.
• Understanding of underground EHV Cables & accessories.

Competencies

Behavioural - Impact and Influence

Behavioural - Information Seeking

Behavioural - Initiative

Behavioural - Innovative Thinking

Functional - Financial

Functional - Operational

Functional - People

Functional - Strategic

About Us

Sterlite Electric Limited (SEL) is a leading integrated power transmission developer and solutions provider globally, focused on addressing complex challenges in the sector by tackling the key constraints of time, space and capital.

We believe that electricity access transforms societies and delivers long-lasting social impact. Sterlite is uniquely positioned to solve the toughest challenges of clean energy delivery.

SEL is expanding horizons in the Power Transmission industry by developing an efficient, reliable and resilient transmission ecosystem. Our work impacts communities and businesses by enabling access to reliable, high-quality electricity. With power utilities facing increased pressure due to a rapidly growing population, increased demand and ageing infrastructure, there is an urgent need for augmentation and upgrades.

We help power utilities to tackle their network congestion challenges, by providing solutions that upgrade and uprate corridor intensity. Our strategic solutions through system design, application engineering, complete engineering procurement and construction as well as project management, commissioning and lifecycle services, ensure improved performance in the short and long-term.