Nitesh Melgandi

Seasoned Mechanical Design professional with 14 years of extensive experience in the design and analysis of UHVAC Power Transformers (up to 1200 kV / 1000 MVA) and UHVDC Transformers, along with Shunt Reactors (up to 800 kV / 110 MVAr).
Proven expertise in mechanical design calculations, structural analysis, and vibration studies for large power transformers and reactors. Strong command over international design practices and standards with hands-on experience across leading global manufacturers.
Key Competencies
Mechanical design of Transformer tanks, core clamping structures, and associated components for various loading conditions (Seismic, Wind, Operational, Handling & Transportation)
Proficient in Short Circuit withstand design as per IEC 60076-5 up to 765 kV, 330 MVA (1-Phase) & 400 kV, 500 MVA (3-Phase)
Structural and Vibration Analysis using ANSYS
Design philosophies of Hitachi-ABB, BHEL, Siemens, Alstom, and GPT
Preparation of detailed customer design documents for approval
Vendor development, quality support, and transportation engineering of large power transformers & reactors
Work Experience
Team Leader – Mechanical Design Section
Leading mechanical design calculations for transformer tanks, core clamping structures, and accessories
Performing detailed structural analysis and vibration analysis of tanks and core structures using ANSYS
Development and maintenance of Technical Standards and Standard Drawings
Vendor audits, development, and technical evaluation
Resolution of quality issues and NCR management
Standardization of components and spare parts
Ensuring safe transportation methodology for Power Transformers and Shunt Reactors
Major Projects
330 MVA, 765 kV, 1-Phase Generator Transformer – India’s largest 765 kV Short Circuit tested transformer
500 MVA, 400 kV, 3-Phase ICT – India’s largest 400 kV Short Circuit tested transformer
600 MVA, 1200 kV Testing Transformer with dual-mode operation (66/1200 kV, 1-Phase, 200 MVA & 66/800 kV, 3-Phase, 400 MVA)
500 MVA, 400/213-213 kV, 1-Phase HVDC Transformer
500 MVA, 765/400/33 kV, 1-Phase Auto Transformer (Asymmetrical Limb Pitch Core)
80 MVAr & 110 MVAr, 765 kV Shunt Reactors
Achievements
Excel Award, BHEL (February 2016)
Technical Paper: “Repair & Rebuilding of Failed 240 MVA, 3-Phase Generator Transformer at Site In-Situ Condition” – 2nd TRAFOTECH Workshop, 2016
Technical Paper: “Safe Transportation of Power Transformer & Reactor” – CPRI Technical Conference, 2017
Patent: “A double dash pot core clamping device for pressing windings of higher rating power transformers and a method of working the device” (Patent No. 310637, Dated: 30-08-2013)