Published Resources Details

Journal Article

Author
Godfrey, N. R.; Parkes, L. S.; Treacy, R. H.
Title
Recent improvements in the electrical loading characteristics of large draglines
In
Journal of Electrical and Electronics Engineering, Australia
Imprint
vol. 6, no. 4, Dec 1986, pp. 296-307
Description

Paper E1266

[This paper was awarded the John Madsen Medal 1986]

Abstract

There are three undesirable features of dragline electrical loading characteristics which can adversely affect supply voltage quality: large transient power swings; starting inrush currents of the mg set synchronous drive motors; and underdamped power oscillations associated with the synchronous motors. The paper describes enhancements which have been made to compensate for these characteristics. A fast reactive power controller compensates for transient power swings; a soft start system for the mg sets avoids starting inrush currents; and a special design of the dc motor drive systems limits the amplitudes of load powers which can excite the synchronous motors near their natural frequency.

See also

Related Published resources

isCitedBy

  • Institution of Engineers Australia, Annual Report 1986 [Sixty-seventh Annual Report] (1987), 24 pp. Details

EOAS ID: bib/ASBS19992.htm

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