Sub-Group Head Electrical Engineering:

: Sub Group Head- Electrical

Job Details a) Position & Designation

Sub Group Head- Electrical b) Grade

M5 / M4

c) Division & Department

Green Hydrogen, Engineering

Job Profile a) Key Objectives

Candidate shall independently perform/create and deliver electrical engineering deliverables for MW/GW scale Green Hydrogen / Alkaline Electrolyser plants and related projects.

Candidate shall lead basic and detailed electrical engineering, equipment selection, vendor coordination, testing and commissioning support for transformers, rectifiers, MCC, MV/LV and associated electrical systems.

Candidate shall ensure engineering is in accordance with project/client requirements, applicable codes and standards.

b) Major Deliverables

Transformers & Rectifier:

Selection/sizing and technical specification of power, converter/rectifier transformers considering rating, impedance, vector group/phase shifting, harmonics, losses, cooling and overload.

Strong knowledge of diode, thyristor, IGBT, AFE and 6/12/24-pulse rectifier technologies; evaluate efficiency, power factor, harmonics, DC ripples, dynamic response and reliability.

Interface of transformer/rectifier with MV supply, electrolyser DC bus and stack; review protection, controls, interlocks and performance guarantees.

Electrical:

Prepare/review SLDs, load lists, cable schedules, equipment datasheets/specifications, MCC/switchgear schematics, electrical layouts and MTO/BOQ.

AC/DC cable sizing, high-current DC busbar design, voltage-drop/short-circuit calculations, earthing,



protection and power-quality/harmonic studies.

Electrical equipment selection including MCC, MV/LV switchgear, motors, VFDs, UPS/DC systems, APFC/harmonic filters and auxiliaries.

Overall:

Technical bid evaluation and vendor drawing/document review; participate in FAT/SAT, commissioning and troubleshooting.

Coordinate with Process, Piping, Mechanical, C & I, Civil, Project, HSE, vendors, consultants and licensors; support HAZOP/HAZID/other safety reviews as applicable.

Support renewable/BESS integration, electrolyser load-following, ramp-rate and grid/power-quality requirements.

c) Reporting to

Head of Engineering d) Place of Posting (Vacancy Listing)

Pune a) Critical Competencies and Essential Attributes

Detailed electrical engineering experience in EPC / industrial / process plant / energy / power projects.

Strong hands-on experience in transformer and high-power rectifier engineering; electrolyser application experience preferred.

Knowledge of high-current DC systems, MV/LV distribution, MCC, cable sizing, electrical protection and power quality.

Knowledge of rectifier technologies including thyristor, IGBT, diode and 6/12/24-pulse configurations.





Ability to create electrical deliverables from scratch and lead multidisciplinary engineering activities.

Robust vendor coordination, technical bid evaluation, FAT/SAT and commissioning capability.

Good knowledge of applicable IS, IEC, IEEE, NEMA, CBIP and client standards.

Proficiency in MS Office/Excel, AutoCAD and preferably ETAP/DIgSILENT or equivalent.

b) Total desirable Years of Experience

18 to 20 Years c) Minimum Years of Experience in relevant role

12+ years d) Qualifications

BE/ BTech in Electrical / Electronics Engineering e) Desired type of Experience

Technical

Transformer and converter/rectifier engineering

Rectifier technologies: Diode / Thyristor / IGBT / AFE / 6-12-24 pulse

High-current DC system and electrolyser electrical interface

MCC / MV-LV switchgear / motor systems

AC & DC cable sizing and electrical studies

Harmonic / power-quality / protection coordination

SLD, load list, specifications, vendor engineering and FAT/SAT

Renewable / BESS integration and dynamic electrolyser load operation

Behavioral

Analytical Thinking

Problem Solving

Teamwork

Communication Skills

Vendor Coordination

Technical Documentation

Time Management

Client Interaction

Following skills are preferred but not mandatory:

Experience of Green Hydrogen electrolyser / balance of stack engineering.

Other Information

Additional Information

Preferred experience in MW/GW scale Green Hydrogen / Alkaline Electrolyser projects, particularly Transformer + Rectifier + high-current DC systems.

📌 Sub-Group Head Electrical Engineering (Pune)
🏢 Thermax
📍 Pune