Voltage sag/swell testing station

US5886429A · kind A · utility

Assignee

• The Board of Regents of the University of Texas System · US

Inventors

• W. Mack Grady · Round Rock, US
• Ricardo Chan · Carrollton, US
• Gregorio C-Y Chung · San Carlos, PA
• David Gerez · Belfast, GB
• William Blane Leuschner · Smyrna, US
• George P. Olson · Chesapeake, US

Key dates

• Filing date: Dec 11, 1997
• Grant date: Mar 23, 1999
• Expiry date: Dec 11, 2017

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R31/001
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A computer controllable testing and monitoring station forms short-term intervals of simulated alternating current power level disturbance, either undervoltage (sag) or overvoltage (swell). The station forms the short term voltage sags or swells so that their effects on sensitive equipment can be measured. The starting point of the sag or swell disturbance, as well as the time duration of the disturbance, can be accurately controlled.