This paper presents the design and implementation of a mobile embedded system to monitor load currents, over voltage and transformer temperature. The on-line supervising system integrates global system for mobile communication (GSM) modem, with node microcontroller unit (MCU), sensors and transformers. It was installed at the distribution transformer site. The output values of sensors and transformers were processed and recorded in the cloud using internet on things. System programmed with some predefined instructions to check abnormal conditions. If there is any abnormal value found in the system, the GSM module will send messages to selected mobile at the same time it cut off the supply form the load. Every half an hour it send actual value of current, voltage and temperature of transformer. This mobile system will help the utilities to protect transformer and identify problems before any extremely failure happens. For future analysis it retrieve data from cloud using think speak platform. This system will be an advanced step to the automation by reducing human dependency and increases the reliability of distribution network.