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Utilization of a mixture of CTs and current sensors in line differential protection applications

Raipala, Ontrei; Hovila, Petri; Leminen, Janne; Farughian, Amir; Memon, Aushiq; Kauhaniemi, Kimmo (CIRED, 03.06.2019)
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The popularity of Rogowski sensors is increasing due to their advantages over conventional CTs. Consequently, network utilities may sometimes end up facing a question whether it would be possible to use line differential ...
Voltage and current THD in microgrid with different DG unit and load configurations

Laaksonen, Hannu; Kauhaniemi, Kimmo (CIRED, 23.06.2008)
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After microgrid transition from the normal operation to the islanded operation the system impedance changes considerably and it affects on the harmonic voltages of the microgrid. In this paper the voltage ...