Discriminating Protection For Trolley Wires
- Organization:
- The National Institute for Occupational Safety and Health (NIOSH)
- Pages:
- 11
- File Size:
- 450 KB
- Publication Date:
- Jan 1, 1975
Abstract
Illegitimate loads on a mine dc power distribution system can be detected by measuring a superimposed ac current. To implement such a scheme, a 10-volt, 3-kHz voltage is applied at each dc power substation. By this means, the mine dc power distribution network, consisting of a feeder and trolley wires with a grounded rail return, is caused to serve also as a 3-kHz ac distribution network.
Citation
APA: (1975) Discriminating Protection For Trolley Wires
MLA: Discriminating Protection For Trolley Wires. The National Institute for Occupational Safety and Health (NIOSH), 1975.