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Enhancement of Mine Power System Safety and Reliability.

PB81125361

Publication Date	1979
Personal Author	Stanek, E. K.
Page Count	202
Abstract	This report contains the results of several related research efforts that were aimed at enhancement of mine power system safety and reliability. The largest single effort was on optimum spares and maintenance scheduling for various components of a mine power system. Two closely related tasks involved calculating the minimum arcing faults that could occur on dc trailing cables and the use of trippable load break switches to clear ground faults. Both of these tasks are concerned with reliable fault clearing to prevent shock and fire hazards. Three other closely related tasks were concerned with aspects of mine power system design--alternate network topologies, optimum voltage selection for mine power systems, and selection of system components. The final task consisted of laboratory tests to ascertain the effects of repetitive, low-level transients on insulation systems.
Keywords	Mines(Excavations) Power supply circuits Safety Reliability Design Maintenance Electric switches Surges Electrical insulation Power systems Mine safety
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries
Corporate Authors	West Virginia Univ., Morgantown. Engineering Experiment Station.; Bureau of Mines, Washington, DC.
Document Type	Technical Report
Title Note	Open file rept. (Final) 1 Jul 78-30 Sep 79.
NTIS Issue Number	198106

Enhancement of Mine Power System Safety and Reliability.

Enhancement of Mine Power System Safety and Reliability.
PB81125361

Publication Date	1979
Personal Author	Stanek, E. K.
Page Count	202
Abstract	This report contains the results of several related research efforts that were aimed at enhancement of mine power system safety and reliability. The largest single effort was on optimum spares and maintenance scheduling for various components of a mine power system. Two closely related tasks involved calculating the minimum arcing faults that could occur on dc trailing cables and the use of trippable load break switches to clear ground faults. Both of these tasks are concerned with reliable fault clearing to prevent shock and fire hazards. Three other closely related tasks were concerned with aspects of mine power system design--alternate network topologies, optimum voltage selection for mine power systems, and selection of system components. The final task consisted of laboratory tests to ascertain the effects of repetitive, low-level transients on insulation systems.
Keywords	Mines(Excavations) Power supply circuits Safety Reliability Design Maintenance Electric switches Surges Electrical insulation Power systems Mine safety
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries
Corporate Authors	West Virginia Univ., Morgantown. Engineering Experiment Station.; Bureau of Mines, Washington, DC.
Document Type	Technical Report
Title Note	Open file rept. (Final) 1 Jul 78-30 Sep 79.
NTIS Issue Number	198106