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Potential Uses for 400-Hz Electrical Power Systems in Mining.

Authors
Conroy-GJ
Source
NTIS: PB 231 299 :10 pages
Link
NIOSHTIC No.
10001155
Abstract
This Bureau of Mines study was initiated to determine whether or not a large-scale investigation of 400-hz applications in coal mines was justified as a means of increasing safety in operations due to size and weight reductions in portable and other mining machinery. Potential uses for 400-hz power in mining operations are explored, and cost and size comparisons with 60-hz systems are made. The use of variable-frequency motor drive is suggested for conveyors. The conclusion was reached that there is no significant potential safety increase due to a general size and weight reduction, since the fact of such general reduction cannot be demonstrated.
Publication Date
19740101
Document Type
IH; Report of Investigations
Fiscal Year
1974
NTIS Accession No.
PB-231299
NTIS Price
A02
Identifying No.
RI 7857
NIOSH Division
PRC;
Source Name
NTIS: PB 231 299
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