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Development of Fail Safe Trolley Energizing/de-energizing System.

Authors
Kimmel-DS; Shimp-AB; Paice-DA; Putkovich-RP
Source
NTIS: PB/299-560 :44 pages
Link
NIOSHTIC No.
10001190
Abstract
The Bureau of Mines sponsored development of a system to remotely energize and deenergize the trolley wire in a section in response to demands from vehicles as they enter and leave the controlled section. The system developed uses a detector-actuator that controls a DC contactor at the outby end, and a 3-khz oscillator at the inby end. A prototype system has been built and installed at the Bureau's trolley test site in Bruceton, Pennsylvania, that has demonstrated the ability to also provide load discrimination for faults of 300 amperes or more. The system could readily be modified by locating the oscillator on the vehicle to provide automatic deenergizing of the trolley wire when the vehicle's pole is removed or the vehicle leaves the section.
Publication Date
19780101
Document Type
CP; Final Contract Report;
Fiscal Year
1978
NTIS Accession No.
PB-299560
NTIS Price
A04
Identifying No.
OFR 101-79
NIOSH Division
PRC;
Source Name
NTIS: PB/299-560
State
PA;
Performing Organization
Westinghouse Electric Corp.
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