Secondary Engineer

Hitachi Energy Ltd.; Chennai; On-site; INR 450,000 - 750,000; Full time

Job summary

Hitachi Energy Ltd. in India seeks a design associate for electrical substation protection engineering with low to medium complexity, to prepare protection SLDs, schematics, BOMs, and RFQs under guidance from engineering leads.

You will work with tendering, project managers, site teams and vendors; prior GIS/AIS substation exposure essential; 1–5 years experience; CAD tools proficiency; IEC/IEEE standards familiarity; and you will support across design and verification tasks.

Qualifications

• Bachelor's degree in Electrical & Electronics engineering is required.
• 1–5 years of experience in substation design or protection engineering.

Responsibilities

• Design Protection SLDs and bus configurations per IEC standards.
• Review vendor drawings and ensure compliance with technical requirements.
• Read schematics and interface Control/Relay panels with SCADA systems.
• Prepare Cable and Termination schedules and LVAC/LVDC layouts.
• Coordinate with project, tender, and site teams for execution.

Skills

GIS/AIS knowledge

Protection design

Schematic interpretation

Relay configuration

Interface engineering

Vendor coordination

Education

Bachelor's in Electrical & Electronics

Tools

CAD design tools

E3

Job description

Design authority for an engineering discipline with low to medium complexity. Complete assignments on small projects or portions of larger projects, cost-effectively and in accordance with contract specifications, quality standards and safety requirements. Based on technical specifications from end customers and inputs from OU Engineering team, prepare protection principle SLD, Schematics, Bill of materials, RFQs, vetting of vendor offers, Engineering hours estimation, visit to project sites, technical risk assessment and opportunity evaluation, etc

Associate with Engineering Leads, Tendering team, Project managers, Site execution team, SCM, Secondary and civil / steel design functions, consultants, end customers etc. and provide required support in each Project / Tender.

The candidate is expected to possess experience in participating in at least one (1) GIS or AIS substation project throughout the entire project lifecycle.

Specific Knowledge & Skillsets

• Proficiency in CAD design tools and E3 (optional).
• AIS/GIS substation equipment and their operational purpose (66kV & above).
• Understanding PQ solutions (STATCOM/SVC) and special substations (Mobile SS/Prefab) – desirable
• Substation Interface Engineering with MEP & Civil - Understanding of cross‑functional interfaces during design and execution phases.
• Tender Engineering - Finalization of layout and SLD interpreting tender inputs.
• Project Engineering - Understand the project scope & customer specifications
• Standards - Awareness of the IEC, IEEE standards related to secondary engineering.
• Protection SLD of various bus configurations.
• Functional Design Standards/Descriptions
• Signal list (SCMS, FMS, etc.,), Protection Trip matrix, Logics & Interlocks.
• Relay ordering information from different IED vendors.
• CRP and secondary cubicle layouts.
• LVAC & DC system distribution philosophy.
• LVAC & LVDC power cable sizing and selection.
• CT / VT parameters.

Activities Involved

Key Activities Include

• Protection SLD showing IEDs with protection and metering functions, understanding power system parameters.
• Understand, relate and review Vendor drawings and document with technical requirements (Control & Relay panels, SCMS, Metering, FMS & LV Auxiliary System).
• Read schematic diagrams and interface Control & Relay panel schemes with SCADA/SAS, Telecom, Metering, FMS, PQMS, WAMS & LV Auxiliary System.
• Read the basics of SAS System architecture in correlation with CRP, metering, FMS, etc.,
• Prepare Cable Schedule/Termination schedule & Wiring/Termination diagrams.
• Design Auxiliary Power System - LVAC & DC load requirements, LV board SLD and panel requirements, Aux. Transformer, Battery & Charger Sizing & CB selectivity study.
• CT/VT Sizing/adequacy check calculation & Relay configuration.
• Technical data sheets verification of equipment’s. Knowledge of equipment, such as circuit breakers, disconnectors, earthing switches, instrument transformers, power transformers, etc.,
• Vendor Co-ordination

Qualifications & Experience

• Bachelors Engineering in (Electrical & Electronics)
• 1-5 years exp