Numerical Electric Field Analysis of Power Status Sensor Observing Power Distribution System Taking into Account Voltage Divider Measurement Circuit

Design and research of a three‐phase voltage sensor based on D‐dot principle

“…In the design of three-phase D-dot voltage sensor based on electric field coupling, not only the effect of adjacent phase electric fields but also the effect of distribution parameters on measurement should be taken into consideration [14].This paper mainly focuses on the change of the measuring system due to the capacitance matrix enlarged by the distributed capacitance [15] between increased adjacent phase leads and the voltage sensor in three-phase line operation. Therefore, in order to reduce the effect of the electric field distribution in adjacent phases, the equivalent area between sensor electrodes should be small.…”

Research on the Group-type of High Voltage Electric Field Measurement Safety Distance Caution Apparatus

“…Take the measured data of low frequency electromagnetic field measuring instrument EFA300 produced by Germany Narda Company as the reference standard in the experiment. EFA300 is an advanced electromagnetic field measuring instrument [16][17][18] , electric field measurement range is from 0.1V/m to 200kV/m, equipped with isotropic three-dimensional measurement probe, the probe resolution 0.1Hz which possesses a very high accuracy, so we choose the instrument as a reference instrument.…”

Non-contact transient high-voltage measurement with self-integrating D-dot probe

“…When an electrode is placed near the tested conductor, the electrode can be regarded as a current source according to Gauss's theorem [8,19]. A load resistance is connected to this electrode.…”

“…The D-dot probe can sample transient voltage through electric field coupling to realize non-contact installation [14][15][16][17][18][19]. A difference input structure is presented to make the D-dot probe work in a selfintegrating mode.…”