Abstract:-In order to measure electrical signals produced by partial discharges in hydrogenerators stator windings, capacitive couplers are regularly used. They are electrically connected to the windings and therefore, require undesired insulation intrusion. For avoiding such an intrusion, a microstrip directional coupler is used, which is experimentally and numerically investigated in this work. This electromagnetic field sensor is analyzed initially via computer simulation using the finite-difference time-domain meth… Show more
“…Other PD measurement methods have been developed in literature. The electromagnetic method, for instance, shows the following advantages over the electric method [12]: it is non-invasive, robust to noise and wideband.…”
“…Other PD measurement methods have been developed in literature. The electromagnetic method, for instance, shows the following advantages over the electric method [12]: it is non-invasive, robust to noise and wideband.…”
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