Power transformers are facing different stress factors during service. Usually, the effects of DC components superimposing AC phase currents are not taken into consideration. Nevertheless, DC can occur in transmission grids due to different sources. This contribution presents ongoing field measurements which show DC in the range of serval Amperes. Different superimposing DC sources are identifi...

Wind farm capacities and transmission distances will be increased significantly in the UK, Round 3 offshore wind farms. This will be a serious challenge when HVDC transmission technologies are considered. The purpose of high temperature superconductor (HTS) cables as the transmission conductor in HVDC transmission system is mainly to reduce the joule losses (IR) arising from the power transmiss...

In this paper, we present the concept of transmitting power without using wires i.e., transmitting power as microwaves from one place to another is in order to reduce the transmission and distribution losses. A wireless power transmission using microwave is a system which contains satellite based solar power system (SPS), microwave generator, microwave transmitter (magnetron) and microwave rece...