#Transformer testing Master's
![Transformer Testing Course – Lessons #19 and #20: Mechanical tests and Testing of auxiliaries Transf. testing course - e-lesson #20 - 850 x 400 illustration](https://transform.zgisoft.com/files/Transf.-testing-course-e-lesson-20-850-x-400-illustration.jpg)
Transformer Testing Course – Lessons #19 and #20: Mechanical tests and Testing of auxiliaries
Available on-demand
![Transformer Testing Course – e-lesson #18: Testing of tap-changers and built-in current transformers](https://transform.zgisoft.com/files/Transf.-testing-course-e-lesson-19-illustration-850-x-400-1.jpg)
Transformer Testing Course – e-lesson #18: Testing of tap-changers and built-in current transformers
Available on-demand
![Transformer Testing Course – e-lesson #17: Capacitance and dielectric dissipation factor measurement](https://transform.zgisoft.com/files/Picture_Lesson18-scaled.jpg)
Transformer Testing Course – e-lesson #17: Capacitance and dielectric dissipation factor measurement
Available on-demand
![Transformer Testing Course – e-lesson #15: Measurement of zero-sequence impedance](https://transform.zgisoft.com/files/Transformer-testing-15-image-v1.jpg)
Transformer Testing Course – e-lesson #15: Measurement of zero-sequence impedance
Available on-demand