Development of an automated break down voltage test set

Dielectric strength measurement is the most primitive test which decides the health of transformers. Presently due to the development of low cost micro-controller and application of Internet of Things in every field automation with IoT in all domains are used as cost-effective solutions. In this paper, an attempt has been made to carry out automation of breakdown voltage test for insulating oil by using low cost microcontroller. This paper also describes the essential components for automation, programming of microcontroller with flowchart and safety of the test set. It is a cost-effective tool for automatic measurement of breakdown voltage of liquid insulation in the field of High Voltage Engineering.