OFR-10-81 Development Of Dual Input/Dual Purpose Power Converter For Trolley Wire Operation
- Organization:
- The National Institute for Occupational Safety and Health (NIOSH)
- Pages:
- 63
- File Size:
- 15873 KB
- Publication Date:
- Jan 1, 1979
Abstract
A power supply to operate fluorescent or mercury vapor lamps from 300 volt dc coal mine trolley wires has been developed for the Bureau of Mines. A high frequency regulated inverter unit incorporates ballasts for a mix of lamp loads up to 650 watts. For 600 volt trolley systems an additional power converter unit was developed to step down the dc voltage to 300 volts for the inverter unit. Both units have operated in a working coal mine for over 12 months without need for servicing. The lamp load in these tests included two 100 watt mercury vapor head lamps and six 75 watt fluorescent lamps.
Citation
APA: (1979) OFR-10-81 Development Of Dual Input/Dual Purpose Power Converter For Trolley Wire Operation
MLA: OFR-10-81 Development Of Dual Input/Dual Purpose Power Converter For Trolley Wire Operation. The National Institute for Occupational Safety and Health (NIOSH), 1979.