Accession Number : ADD003697

Title :   Transient Source and Direction of Propagation-Detector.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Smith,Maurice N ; Huang,Kwang-Ta

Report Date : 12 Oct 1976

Pagination or Media Count : 10

Abstract : A detector for locating the direction of propagation of transients on electrical power lines supplying critical loads having various types of random impulse voltage transients. The device detects the polarity of transient voltages and the direction of transient current. An integrated logic and control circuit compares the sampled voltage and current to indicate from which direction the transient came. The logic and control circuit activates indicator lights which show whether the transient occurred in the direction of the source or the load and whether the transient was positive or negative. (Author)

Descriptors :   *Patents, *Change detection, *Direction finding, Electric power transmission, Transients, Voltage, Electric current, Indicator lights

Subject Categories : Electrical and Electronic Equipment
      Electric Power Production and Distribution
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE