Patent ID: 9121877
Filing Date: 2015-09-01
Classification: G01R,H04M

Abstract:
1. A system for measuring phase attributes of high voltage electrical lines comprising: a first high voltage probe comprising a sensing element for selectively measuring voltage or current of a first high voltage electrical line and developing a measured signal, a processing device for detecting zero crossings of the measured signal, applying a time tag to the zero crossings, and storing samples of the measured signal and time tagged zero crossings, and a transceiver for transmitting stored samples of the measured signal and time tagged zero crossings; a second high voltage probe comprising a sensing element for selectively measuring voltage of a second high voltage electrical line and developing a measured signal, a processing device for detecting zero crossings of the measured signal, applying a time tag to the zero crossings, and storing samples of the measured signal and time tagged zero crossings, and a transceiver for transmitting stored samples of the measured signal and time tagged zero crossings; and a user interface device remote from the first and second high voltage probes and comprising a transceiver for receiving transmitted stored samples of the measured signals and time tagged zero crossings, a memory for storing received samples of the time tagged zero crossings for the first and second high voltage electrical lines, a processor operatively associated with the memory for determining phase relationships between the first and second high voltage electrical lines and a display for displaying the phase relationships.