File:Annual report 1921 (1921) (14581841150).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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rator setfor use as an emergency source of excitation for the main and service gener-ators. In March an order was placed with the Swedish General Electric Com-pany, Limited, of Toronto, for one 150 k.w., 250 volt, direct-current generatorcoupled to a 250 h.p., 25 cycle, 2,300 volt, induction motor which will be sup-plied from the 2,300 volt service system. Provision is being made so thatthis exciter can be connected readily to the fields of any main or service gener-ating unit and be used with the regulator of the main unit. WaterCooling System The water-cooling coils of the transformers and the generator thrustbearings will be supplied from a sectionalized 8 inch header in the West pipetunnel. Each section of this header supplies the transformer bank and gener-ator bearing of one unit, and is fed by a short riser from the main unit pen-stock. As the static head on this piping system will be about 300 feet, extra heavypiping is used throughout. 1922 HYDRO-ELECTRIC POWER COMMISSION 201
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OUEENSTON GEN. STATION./ WIRING DIAGRAM OF MAIN CONNECTIONS. HYDRO ELECTRIC POWER COMMISSION o ■ o I CNJ o o 0) * V k U K•a ■% i ■-. ■ - 2 1 *>%•■ < i ll -^. 5 2 1 n id < 202 FOURTEENTH ANNUAL REPORT OF THE No. 49 Transformer Oil Handling System A system of storage tanks, pumps and piping has been worked out forhandling transformer oil under a great variety of conditions. This system consists of a 2 inch good oil header, and a 4 inch badoil header, in the West pipe-tunnel, connecting Avith all banks of transformers;two oil tanks of 7,300 gallons each, and a pair (used as one) of 4,600 gallontanks; an Albany motor-driven gear-pump of 40 Imperial-gallons-per-minute capacity; a 12 inch by 12 inch, William Perin, Limited, filter press, andinter-connecting piping of genuine wrought-iron throughout. The piping layout and valve arrangement for this system have been work-ed out so as to give centralized control of all possible operations in the imme-diate vicinity of th

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