Rajesh Kumar
Senior Magnetics Design Engineer
15+ years of experience in transformer core design, magnetic materials characterization, and power electronics applications. Leading expert in nanocrystalline core technology for EV charging and current transformer applications.
Education & Certifications
Education
- • M.S. Electrical Engineering, Indian Institute of Technology (IIT) Delhi
- • B.Tech Electronics Engineering, National Institute of Technology (NIT) Kurukshetra
Certifications
- • Certified Magnetic Materials Specialist (CMMS)
- • IEEE Senior Member
- • IPC EMC Design Certification
Technical Expertise
Core Specializations
- • Nanocrystalline current transformer cores
- • EV charger transformer design
- • EMI filter and common-mode chokes
- • High-frequency power magnetics (20-100kHz)
Testing & Analysis
- • Magnetic materials characterization
- • Core loss measurement and modeling
- • Conducted emissions optimization
- • Thermal analysis and cooling design
Industry Experience
CenturaCores (2020 - Present)
Senior Magnetics Design Engineer
Leading core design projects for EV charging infrastructure, renewable energy systems, and precision current transformers. Developed proprietary nanocrystalline core designs implemented in over 50,000 EV charging stations worldwide.
ABB Power Grids (2015 - 2020)
Senior Engineer, Magnetic Components
Specialized in current transformer design for utility-scale applications. Led development of Class 0.2S revenue metering CTs and 5P protection CTs for substations up to 800kV.
Schneider Electric (2009 - 2015)
Design Engineer, Power Electronics
Focused on EMI filter design and magnetic component optimization for industrial drives and power supplies. Developed cost-effective solutions for conducted emissions compliance.
Technical Articles & Publications
Comprehensive comparison and practical selection guidelines for conducted EMI suppression.
Step-by-step guide covering accuracy classes, burden calculations, and design examples.
Complete engineering guide for 400V and 800V EV charging applications.
Technical comparison and application-specific selection criteria for core materials.
Procurement strategies for managing supply chain risks in nanocrystalline core sourcing.
Key Achievements
Innovation & Patents
- • 8 patents in magnetic core design and manufacturing
- • Developed proprietary annealing process for improved permeability
- • Created cost-effective nanocrystalline CT designs
Industry Impact
- • 50,000+ EV charging stations using his core designs
- • Reduced CT core size by 40% while maintaining accuracy
- • Helped clients achieve 15°C lower operating temperatures