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Development of IOT based solution for monitoring and controlling of distribution transformers

This paper presents a new IoT (Internet of Things) framework for condition monitoring and controlling of larger number of distribution transformers as they are one of the influential and important equipment in the power distribution network. Great numbers of distribution transformers are required to distribute power over a wide area. That being the case, it is essential to keep an eye on its condition for satisfactory operation of any distribution network. This paper presents a method of implementing LoRa (Long-range) technology for monitoring and diagnosing the condition of distribution transformers using specified sensors/devices. This facilitates recording key operation indicators like voltage, load current, winding temperatures, oil temperatures, oil level in conservator and breather silica gel status of each distribution transformer in the range of 10km using LoRa modules. This data is sent to IoT platform using LoRa gateway. If a parameter of any distribution transformer exceeds the predefined value/level, alerts will be received on the developed web application showing the particular transformer's location, to take necessary action. Commands of controlling transformer's operation can be issued from the web application itself. Selected advantages of this method are like, continuous monitoring of DTs, timely alerts to rectify the abnormality if any, thereby extending the lifetime of distribution transformers, simplifying the troubleshooting in the distribution network and providing customers with proper service.