Position’s overall objective:

The Senior Engineer– Rectifier Transformer Design will serve as a key technical authority for the organization's rectifier and special transformer business, driving design quality, technical innovation, reliability, cost optimization and timely project execution, while developing a strong and capable engineering team.

Primary responsibility:

 Convertor Transformer Design & cost estimation (Dry type – Varnish Dip & Bake / Cast resin, Oil immersed - ONAN , OAF,OFWF with / without On load / off load tap selector )

 Transformer outsource specification & support purchase in price finalization.

 Other wound component – DC Inductor , Interphase transformer Design & manufacturing documents.

Authorities :

The incumbent will be accountable for:

 Technical correctness of assigned rectifier transformer designs

 Compliance with approved specifications and standards

 Design quality and reliability

 Timely release of engineering documents

 Technical risk identification and mitigation

 Design optimization and cost competitiveness

 Technical development of the design team

 Resolution of critical design and manufacturing issues

Work activities :

1. Rectifier Transformer Design

 Responsible for electrical and mechanical design of rectifier transformers for industrial and Convertor duty applications.

 Develop and review transformer designs based on customer specifications, load characteristics, duty cycle and application requirements.

 Design transformers for 6-pulse, 12-pulse, 18-pulse, 24-pulse and other multi- pulse rectifier applications, with OLTC or OCTC as applicable.

 Evaluate harmonic currents, phase-shifting requirements, circulating currents and additional losses associated with rectifier loads.

 Carry out various calculations applicable for transformer design.

 Select suitable winding configurations, conductor sizes, insulation systems and cooling arrangements.

 Review magnetic circuit and core design for optimum performance and minimum losses.

 Design and review special winding arrangements required for phase-shifting and rectifier applications.

 Ensure appropriate consideration of DC components, harmonic loading and non- linear loads.

2. Technical Design Review





 close coordination with transformer vendor (if decided to buy transformer)/ draft specification / preliminary costing / technical negotiations for cost effective solutions.

 Review design calculations, drawings and technical documents prepared by the vendor.

 Ensure designs comply with customer specifications, approved technical offers and applicable standards.

 Review design margins and identify potential technical risks before release for manufacturing.

 Conduct design reviews and provide technical approvals as per the company's authorization matrix.

 Develop solutions for technically challenging and customized transformer requirements.

 Ensure standardization and optimization of design practices, materials and components.

 Review total losses, including fundamental-frequency and harmonic-related losses.

 Evaluate additional winding, structural and tank losses resulting from rectifier/harmonic currents.

 Review thermal design and hot-spot calculations.

 Select appropriate cooling methods such as ONAN, ONAF, OFAF or other application-specific cooling arrangements.

 Ensure adequate thermal margins for continuous and cyclic loading.

 Review temperature-rise calculations and factory test results

3. Tendering & Technical Support

 Provide technical support to the Sales/Tendering team for rectifier transformer enquiries.

 Review customer specifications and identify technical deviations, risks and clarification points.

 Support preparation of technical offers and design estimates.

 Participate in customer technical discussions and specification finalization.

 Provide technical inputs for cost optimization without compromising reliability or performance.

 Review and approve technical deviations and design changes.

4. Project Engineering

 Ensure timely release of approved design documents for manufacturing.

 Coordinate with Project Management, Production, Quality, Procurement and Testing departments.

 Resolve design-related manufacturing and testing issues.

 Review customer comments and incorporate approved changes into engineering documents.





 Support factory acceptance tests and customer inspections.

 Provide engineering support during installation and commissioning when required.

5. Testing & Validation

 Review routine, type and special test requirements for rectifier transformers.

 Support preparation and review of test procedures and test specifications.

 Analyze test results and investigate deviations or failures.

 Provide technical guidance for temperature-rise, impedance, losses, dielectric, impulse and other special tests.

 Support root-cause analysis and corrective actions for design-related test failures. 6. Software & Engineering Tools

Working knowledge of relevant transformer design and engineering tools, such as:

 Transformer design/calculation software

 Electrical calculation tools

 AutoCAD or equivalent drafting software

 MS Excel – advanced calculation and analysis

 MS Office

 Engineering documentation

Knowledge of simulation tools such as ANSYS, FEM-based electromagnetic/thermal

analysis or equivalent will be an added advantage.

Education B.E./B.Tech in Electrical Engineering / Electrical & Electronics Engineering.

Experience

 Typically, 5 – 8 + years of relevant experience in transformer design, with substantial experience in special application or rectifier/converter transformers.

 Strong experience in design of medium/high-voltage power or special transformers.

 Experience in a design and managing multiple projects simultaneously.

 Hands-on experience in customer technical discussions, design reviews and manufacturing support.

Experience with international customers and standards will be an advantage

Personality traits

 Robust technical support

 Analytical and problem-solving ability

 Decision-making capability

 Customer-oriented approach

 Good communication and presentation skills

 Cross-functional coordination

 Ability to manage engineering priorities and deadlines

 Strong ownership and accountability

 Continuous improvement mindset

 Ability to handle technically complex and high-value projects

Language English (primary) & any other regional language

Other Willing to Travel all over India & Abroad Physical fitness to survive different atmospheric condition across India/overseas

Pay: ₹1,000,000.00 - ₹1,200,000.00 per year

Work Location: In person

📌 Senior Engineer Transformer Design (Chakan)
🏢 FJ Direct
📍 Chakan