Location:
Bad Honnef, North Rhine-Westphalia, Germany
Job ID:
R0104799
Date Posted:
Company Name:
HITACHI ENERGY GERMANY AG
Profession (Job Category):
Other
Job Schedule:
Full time
Remote:
No
Job Description:
The opportunity
U nderstanding the moisture dynamics in transformer insulation is critical for predicting aging, dielectric failure, and overall
reliability. While recent models like the Thermo-Chemical Digital Twin offer advanced simulation capabilities, one of the main
opportunities for improvement lies in the modeling non-uniform water distribution and its impact on voltage behavior under
transient conditions. Additionally, no established criterion exists for evaluating water content in paper insulation under
energized conditions.
Your responsibilities
* Model Development: Extend the water diffusion model to include spatially resolved moisture dynamics and additional influencing factors such as temperature gradients and oil aging
* Diagnostic Criteria: Develop a practical criterion for evaluating water content in paper insulation under energized conditions
* Voltage Behavior Analysis: Investigate how increased and non-uniform moisture distribution affects voltage response under impulse and switching conditions
* Validation: Validate model improvements through simulations and comparison with Breakdown Voltage (BDV) tests using special wave shapes
Your background
* Master's student in Electrical Engineering, Power Systems, Applied Physics, or related fields
* Strong foundation in modeling and simulation (e.g., MATLAB, Python, COMSOL)
* Knowledge of dielectric materials and transformer insulation systems
* Analytical and independent working style
* Fluent in English; German is a plus
What we offer
* S upervision by experienced R&D professionals
* Access to internal models, data, and simulation tools
* Opportunity to contribute to cutting-edge transformer diagnostics
* Potential for follow-up opportunities in research or engineering roles
* switching conditions
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