NIOSHTIC-2 Publications Search

Electrical fault detection on downed DC trolley lines.

Authors
Peterson-JS; Cole-GP
Source
Society for Mining, Metallurgy, and Exploration, Inc., preprint 97-38, 1997 Feb; :1-5
Link
NIOSHTIC No.
20021274
Abstract
The National Institute for Occupational Safety and Health (NIOSH), Pittsburgh Research Center (PRC), has conducted research to improve electrical fault detection on coal mine direct current (dc) trolley systems. Present circuit breaker protection systems are current-magnitude-based and cannot discern between normal traffic and high resistance electrical faults. Tests were conducted at cooperating mines to assist in developing a neural-network-based detection algorithm for distinguishing between electrical faults and normal operation. The Fast Fourier Transform of the trolley rectified current signature served as baseline data for the neural network. During field tests, the algorithm performed with greater than 90% accuracy.
Keywords
Electrical-hazards; Electrical-equipment; Electrical-charge; Electrical-transmission; Electricity; Mining-industry
Contact
National Institute for Occupational Safety and Health, Pittsburgh Research Laboratory, P.O. Box 18070, Pittsburgh, PA 15236
Publication Date
19970201
Document Type
Other
Fiscal Year
1997
NIOSH Division
PRL
Source Name
Electrical fault detection on downed DC trolley lines
State
PA
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division