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Wednesday, April 29, 2020 | History

1 edition of Potential uses for 400-Hz electrical power systems in mining. found in the catalog.

Potential uses for 400-Hz electrical power systems in mining.

Potential uses for 400-Hz electrical power systems in mining.

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Published by Dept. of the Interior in Washington .
Written in English


Edition Notes

11

The Physical Object
Pagination10 p.
Number of Pages10
ID Numbers
Open LibraryOL22018142M

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Potential uses for 400-Hz electrical power systems in mining. Download PDF EPUB FB2

Potential uses for Hz electrical power systems in mining (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors: George J Conroy; United States. Bureau of Mines. Potential Uses For Hz Electrical Power Systems In Mining Start Download Portable Document Format (PDF) and E-books (Electronic Books) Free Online Rating News / is books that can provide inspiration, insight, knowledge to the reader.

Potential uses for hz power in mining operations are explored, and cost and size comparisons with 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.

Potential uses for Hz electrical power systems in mining / By George J. Conroy, Pittsburgh Mining and Safety Research Center. and United States. Bureau of Mines. Abstract.

Includes bibliography (p. 10).Mode of access: Internet Topics: Electricity in mining., Mine safety. Generally low-voltage systems distribute voltages less than volts. Because the reactance of an electric system is greater at Hz than at 60 Hz, attention must be given to both circuit length and conductor size to maintain acceptable voltage regulation.

• The Use of Electricity in Mining is motivated by equipment size and the replacement of high cost Diesel Fuel and the resulting cost savings. • Confidence that the cost of Electricity will remain low compared to Diesel Fuel is needed to justify the investment in mine site electrical infrastructure.

The book has been written along these lines, dealing with those topics which highlight the aspects of electrical engineering of relevance for mining engineers and aspects of mining operations that electrical engineers need, to meet the above-mentioned basic requirements governing the introduction and use of electrical plants and systems in Edition: 1.

The Electrical Engineer is a “Service provider” to the Mining Engineer so that ever bigger toys can be run. Robust electrical equipment/electrically powered equipment that is “used” by non electrical people.

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Aircraft often use Hz power internally, so 50 Hz or 60 Hz to Hz frequency conversion is needed for use in the ground power unit used to power the airplane while it is on the ground. Conversely, internal Hz internal power may be converted to 50 Hz or 60 Hz for convenience power outlets available to passengers during flight.

Cell Used as Energy Source for a Variable-Speed Drive 26 Application Example Calculation of the Currents of a Wind Power Plant PWM Inverter Feeding Power into the Power System 26 EFFECTS OF POOR POWER QUALITY ON POWER SYSTEM DEVICES 29 STANDARDS AND GUIDELINES REFERRING TO POWER QUALITY Common electrical units used in formulas and equations are: Volt - unit of electrical potential or motive force - potential is required to send one ampere of current through one ohm of resistance; Ohm - unit of resistance - one ohm is the resistance offered to the passage of one ampere when impelled by one volt; Ampere - units of current - one ampere is the current which one volt can send.

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