The opportunityUnderstanding the moisture dynamics in transformer insulation is critical for predicting aging, dielectric failure, and overallreliability. While recent models like the Thermo-Chemical Digital Twin offer advanced simulation capabilities, one of the mainopportunities for improvement lies in the modeling non-uniform water distribution and its impact on voltage behavior undertransient conditions. Additionally, no established criterion exists for evaluating water content in paper insulation underenergized conditions.Your ResponsibilitiesModel Development: Extend the water diffusion model to include spatially resolved moisture dynamics and additional influencing factors such as temperature gradients and oil agingDiagnostic Criteria: Develop a practical criterion for evaluating water content in paper insulation under energized conditionsVoltage Behavior Analysis: Investigate how increased and non-uniform moisture distribution affects voltage response under impulse and switching conditionsValidation: Validate model improvements through simulations and comparison with Breakdown Voltage (BDV) tests using special wave shapesYour backgroundMaster's student in Electrical Engineering, Power Systems, Applied Physics, or related fieldsStrong foundation in modeling and simulation (e.g., MATLAB, Python, COMSOL)Knowledge of dielectric materials and transformer insulation systemsAnalytical and independent working styleFluent in English; German is a plusWhat We OfferSupervision by experienced R&D professionalsAccess to internal models, data, and simulation toolsOpportunity to contribute to cutting-edge transformer diagnosticsPotential for follow-up opportunities in research or engineering rolesswitching conditionsHitachi Energy is a global technology leader in electrification, powering a sustainable energy future through innovative power grid technologies with digital at the core. Over three billion people depend on our technologies to power their daily lives.With over a century in pioneering mission-critical technologies like high-voltage, transformers, automation, and power electronics, we are addressing the most urgent energy challenge of our time – balancing soaring electricity demand, while decarbonizing the power system.Headquartered in Switzerland, we employ over 50,000 people in 60 countries and generate revenues of around $16 billion USD. We welcome you to apply today.