Secondary Engineer

Hitachi, Ltd.; Chennai, Tiruchirappalli, Coimbatore District, Bengaluru, Hyderabad; On-site; INR 400,000 - 650,000; Full time

Job summary

Hitachi, Ltd. in Chennai seeks an Associate Electrical Design Engineer to contribute to GIS/AIS substation projects. You will prepare Protection SLDs, schematics, BOMs, and vendor technical evaluations, aligning with IEC/IEEE standards and project specifications.

You will collaborate with tendering, project management, site execution, SCM, and civil/steel design teams to ensure design integrity, risk assessment, and timely delivery across the project lifecycle.

Qualifications

• Experience or exposure to GIS/AIS substations across project lifecycle is required.
• Proficiency with CAD design tools and understanding of electrical schemes.
• Familiarity with IEC/IEEE standards related to secondary engineering.

Responsibilities

• Prepare Protection SLD, schematics, bill of materials, and vendor bid evaluations.
• Estimate engineering hours and review vendor offers.
• Visit project sites and assess technical risks and opportunities.
• Coordinate with Engineering Leads, Tendering, Project managers, Site execution, SCM, and other design functions.
• Read schematics and interface control with SCADA/SAS, Metering, FMS, and LV auxiliary systems.

Skills

CAD design tools

E3

AIS/GIS substations

66 kV & above

STATCOM/SVC

Mobile/Prefab substations

Substation interface engineering

Tender engineering

Project engineering

IEC/IEEE standards

Protection SLD

Signal lists and interlocks

Relay and IED knowledge

CRP/cubicle layouts

LVAC & LVDC distribution

CT/VT sizing

Education

Bachelor's in Electrical & Electronics Engineering

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 (66 kV & 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