A reliable supply of electricity free from power outages is important for the stability and economic development of any country. Power outages are caused due to various reasons such as faults in power systems, damages in various parts of the power network, overload currents etc. While some power outages are unavoidable such as those occurring due to natural weather conditions, at least twenty five percent of all industrial outages can be managed. In order to reduce power outages, the continuous monitoring of electrical parameters such as current, voltage, temperature etc is essential. In case of current monitoring, conventionally current transformers (CTs) are used in AC substations and zero flux dc current transformers are used in HVDC substations. CT technology is reliable and accurate. Zero flux dc current transformers also feature high accuracy. However, CTs can only be used for alternating current measurements. Also, they are very bulky, costly and require a lot of maintenance. Zero flux current transformers also have a large volume and heavy weight. Hence this paper presents a current measurement IOT module using TMR technology. This module will be self-powered, compact and capable of measuring AC as well as DC currents in HVAC and HVDC substations.

Keywords : HVAC, HVDC, Power Outages, Current Monitoring, TMR