Hello, friend. I recommend you consider the HV systems course at Lerus Training https://www.lerus.com/offshore-courses/high-voltage-training.html
. This course teaches safe HV equipment handling and maintenance practices, including an introduction to HV system composition and protection system requirements. The course content covers important regulatory issues, electrification, regulation, working with various system components and practical exercises. The course concludes with a written examination, upon successful completion of which a certificate is awarded. The course is designed for certified engineers and personnel responsible for the maintenance of high voltage systems. The course participants left positive feedback, noting the high level of training and the competence of the instructors.