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Using propagation characteristics of travelling wave, an extra high speed busbar protection technique is proposed. If a fault occurs on the transmission line, the forward and backward travelling waves will be generated. When a fault occurs on the busbar, the detected initial travelling waves on all lines connected to this busbar will come from their backs, which are positive direction travelling waves...
Intelligent substation is the most important aspect of Smart Grid constructing. There are many problems during intelligent reconstruction of conventional substation, one of which is to add a variety of secondary equipments. To address this problem, the paper puts forward two distributed configuration schemes of secondary devices using the IED with integrated functions of process level and bay level...
Along with the increasing development of power electronics, IT and communication technologies and the increasing trust in power supply for people, the construction of smart grid is becoming an important development direction of electric power industry throughout the world. As an important part of the smart grid, the smart distribution grid requires the terminal unit to realize information interaction...
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