View article

BACKGROUND

0005 Electrical power distribution systems often include overhead electrical power distribution lines mounted upon poles by a wide variety of mounting structure. Other distri bution systems include underground distribution lines in which protected cables run under the ground surface. High Voltage phasing meters are designed for use as safety tools by maintenance line workers to Verify the status Voltage and phase of the gridlines, phase angle between the lines and also phase sequencing. Even though feeder circuits in utility lines are intended to be well balanced in the initial deployment, one of the phases may turn out to be more heavily loaded than others. This leads to load imbalances.

0006 Known high Voltage phasing meters comprise high resistance reference and meter probes connected in series with a calibrated panel meter to read the voltage across the phase-to-phase or phase-to …