Role & responsibilities

Key Responsibilities:

- Review tender documents and technical specifications; prepare Design Intent Documents and design inputs for tendering.
- Develop protection single-line diagrams (SLDs) showing protection principles, relays and metering.
- Prepare Functional Design Descriptions/Standards, signal lists, trip matrixes, logic and interlocks.
- Produce schematic diagrams for control & relay panel interfaces, circuit diagrams for new and retrofit setups, cable block diagrams, wiring/termination diagrams and core sheets.
- Prepare relay ordering information, cable schedules, BOQ estimates and SCS IO schedules.
- Perform panel engineering tasks (layouts, circuit diagrams, wiring tables, terminal tables) and create asbuilt documentation.
- Size CTs/VTs, perform voltage drop calculations for trip/close coils and LVAC power cables, and design auxiliary power systems (LV AC panels, DC panels, auxiliary transformer, battery & charger sizing, cable sizing and selectivity studies).
- Review and technically vet vendor drawings/offers for control & relay panels and auxiliary systems; conduct vendor offer evaluations.
- Support FAT/SAT of primary and secondary equipment and participate in customer approvals for designs and drawings.
- Coordinate with primary engineering, lead engineers, sourcing, factory counterparts and protection/control teams to ensure timely design progress and delivery.
- Identify technical risks and opportunities; estimate engineering effort for tender costing and propose methods to reduce engineering effort.
- Attend customer meetings and site visits for tender/project clarifications; act as interface engineer during erection & commissioning when required.




- Maintain and improve quality systems and ensure ontime delivery of design deliverables.

Requirements:

- Bachelors degree in Electrical Engineering or equivalent.
- Minimum 6 years’ experience in secondary design for high-voltage / EHV substations (experience up to 20 years considered).
- Strong knowledge of protection and control principles, protection relays, metering and protection schemes.
- Proven experience preparing protection SLDs, functional design descriptions, signal lists, trip matrices, logic/interlocks, and detailed wiring/circuit diagrams.
- Proficiency in panel engineering (layouts, terminal/wiring tables) and creating cable schedules, BOQs and relay ordering documents.
- Handson experience with interfaces to primary equipment, bay controllers, SCADA/RTU and teleprotection systems.
- Experience in auxiliary power system design (LV/ DC panels, battery & charger sizing) and CT/VT selection and sizing.
- Ability to review and technically vet vendor drawings and offers; experience with FAT/SAT activities.
- Good knowledge of AIS and GIS secondary design requirements.
- Strong communication and coordination skills; ability to work with crossfunctional teams and interact with customers and vendors.
- Willingness to travel for site visits, FAT/SAT and customer meetings.
- Proficient with engineering documentation tools (e.g., AutoCAD or equivalent) and standard office applications.

Preferred Qualifications:

- Practical experience in relay configuration and commissioning.
- Familiarity with IEC 61850, protection relay vendor tools and bay controller configuration.
- Prior experience on retrofit projects and modifying existing drawings using red/green markups.
- Advanced degree or skilled certifications in power systems, protection or control disciplines.

Location: Chennai, India

Preferred candidate profile

📌 Secondary Design Engineer (Chennai)
🏢 The Glove
📍 Chennai