Accession Number : ADD001353

Title :   Three-Phase Power Disturbance Monitor.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Smith,Maurice N

Report Date : 28 May 1974

Pagination or Media Count : 14

Abstract : The patent describes a three-phase power disturbance monitor for sensing and recording anomalies occurring in electrical power systems which cause operational malfunctions in, and damage to, critical loads such as computers and synchronous communication equipment. The system senses and counts over and under voltage conditions, over and under frequency variations, and high or low threshold pulse transients. The monitor provides visual and audio warnings of power supply conditions which could damage equipment if left uncovered for a period of time. The number of disturbances exceeding certain values is displayed on a digital counter.

Descriptors :   *Monitors, *Patents, Power supplies, Anomalies, Voltage, Frequency, Transients, Alternating current, Electric power, Recording systems

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE