A.D.C. Operated Ground Fault Locator for Energized Shipboard A.C. Electrical Systems.
Abstract
The patent application describes a device for locating a ground fault in an energized shipboard or other A.C. electrical power system which is normally not grounded. A direct current power supply is used to inject direct current into one of the power lines of the A.C. system. A Hall sensor is placed in proximity to the outer surface of the cable under test. A center zero D.C. meter monitors the Hall output. Any meter deflection indicates a resistive ground. The fault may then be located by properly maneuvering the Hall sensor and observing where the meter deflection reverses.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 17, 1974
- Accession Number
- ADD001228
Entities
People
- Ernest W. Fisher
Organizations
- United States Department of the Navy