File:Annual report 1921 (1921) (14768235712).jpg

Identifier: annualreport1921onta (find matches)
Title: Annual report 1921
Year: 1921 (1920s)
Authors: Ontario Hydro Hydro-Electric Power Commission of Ontario Ontario Hydro International Inc
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Contributing Library: Robarts - University of Toronto
Digitizing Sponsor: University of Guelph, University of Windsor, York University and University of Toronto Libraries

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, was connected to the transmission lineat a point about 200 yards from the temporary high-tension entrance bush-ings and was tested and placed in service on May 10th.Station Service For the station service supply, two 250 k.v.a. 13,200/2,300-575 volt PackardElectric Company transformers were placed in a temporary location on themain floor. These transformers were supplied from the temporary 12,000 volt 1922 HYDRO-ELECTRIC POWER COMMISSION 231 bus-bars through a type C circuit-breaker. The low-tension side of thesetransformers was connected through a Canadian Westinghouse Companytype B2 circuit-breaker to the permanent 575 volt bus-bar, which hadpreviously been erected. From this bus-bar, 575 volt power was supplied to the two 125 h.p. gover-nor-pump motors and to the 10 k.w., Crocker-Wheeler, motor-generator set in-stalled for station control and for charging the 60 cell battery, supplied by theCanadian Hart Accumulator Company, and erected in a temporary loca-tion on the main floor.
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Nipigon Power House: Transformer Room. October 22nd, 1921 232 FOURTEENTH ANNUAL REPORT OF THE No. 49 Control Board A temporary control board with necessary controllers, meters, relays, etc.,was elected in the centre of the main iloor. The circuit-breakers wereelectrically operated but governors were controlled by hand. Oiling and Cooling Systems Temporary installations had to be made for the greater part of thelubricating-oil and water-cooling systems, including the oil and water-pumps.An improvisation, moreover, was made out of oil-drums to take the piace of thegravity oil-tank ultimately to be installed.Permanent Installation By August 7th the installation of the permanent low-tension and high-tension switching equipment was practically completed, so that it was pos-sible, by having an interruption on the system of twelve hours, to connect thegenerators to the permanent equipment, move the three 250 k.v.a. servicetransformers into permanent position and comiect on to the two 8,000 k

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