Accession Number : ADD003442

Title :   Transient Direction Detector.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Huang, Kwang-Ta

Report Date : 12 Oct 1976

Pagination or Media Count : 7

Abstract : The patent relates to a transient direction which indicates the occurrence of power line transients and their direction of propagation. The system is comprised of current and voltage sensors, a logic and control circuit which receives the transient current and voltage sensed and provides an output to an indicator circuit to show the direction of any transients on a power line. The current sensing circuit receives an input from an induction coil on an iron clamp around a power line. The voltage sensing circuit receives its input from a voltage sampling transformer directly connected across a power line. The logic and control circuit determines where the transient occurred by comparing the polarity received from the transient current and voltage sensing circuits.

Descriptors :   *DETECTORS, *PATENTS, TRANSIENTS, TRANSMISSION LINES

Subject Categories : Electric Power Production and Distribution

Distribution Statement : APPROVED FOR PUBLIC RELEASE