Information Circular 9306: Motor Monitoring System for a Continuous Miner

Details

• Journal Article:
  Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, IC 9306
• Personal Author:
  Thalimer, John R. ; McClelland, John J. ; Homce, Gerald T.
• Description:
  The U.S. Bureau of Mines has investigated the early detection of insulation failure in squirrel cage induction motors for the past 4 years. Research was done using a sophisticated empirical data- modeling technique based on values calculated from a motor's voltage and current phasors. This technique produces two polynomial equations that calculate the insulation leakage current and power. These models were implemented in a prototype system that monitors six motors on a continuous miner for insulation leakage. These insulation leakage values are used to anticipate insulation failure. The system consists of a motor data system for each motor on the machine and a control computer located away from the miner. Each motor data system consists of an analog interface to the motor's voltages and currents, a single-board computer that reads digitized data and calculates voltage and current phasors, and a bus node that interfaces the single-board computer with the rest of the system by way of a serial bus system. Using this bus system, the control computer requests and receives phasor data from the motor data systems. From these data the control computer calculates and displays two deterioration values for each motor, for leakage current and power, using Bureau-developed models. These values are stored in a data base from which the user can display graphs of each motor's deterioration values over time. [Description provided by NIOSH]
• Subjects:
  Coal Coal Mining Electric Injuries Electricity Mining Occupational Health Safety
• Keywords:
  Mining-industry; Mining-equipment; Electrical-equipment; Electrical-shock; Electrical-safety; Coal-mining
• Source:
  Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, IC 9306, 1992 Jan; :1-12
• Series:
  Mining Publications   ; NIOSH Numbered Publications  
• Subseries:
  Information Circular
• Document Type:
  Text
• Genre:
  Report
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRC - Pittsburgh Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  16 pdf pages
• NIOSHTIC Number:
  nn:10011188
• NTIS Accession Number:
  PB92169994
• Contact Point Address:
  NIOSH, Pittsburgh Research Laboratory, P.O. Box 18070, Pittsburgh, PA 15236
• Federal Fiscal Year:
  1992
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:56e0327a0b87a69fceb0daa4c04137df7015e12a3f2d1966259a90dc521492d5c01a3cb2321cdaa8486dbc8ed15b78b8d5ec1eb0492aeb2687e5081cc5c07057
• Download URL:
  https://stacks.cdc.gov/view/cdc/8942/cdc_8942_DS1.pdf
• File Type:
  [PDF - 2.32 MB ]