Identifier: electricalnewsen31donm (find matches)
Title: Electrical news and engineering
Year: 1891 (1890s)
Authors:
Subjects: Electrical engineering
Publisher: Don Mills, Ont. (etc.) Southam-Maclean Publications
Contributing Library: Engineering - University of Toronto
Digitizing Sponsor: University of Toronto

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unit will be capable of operating continuouslyat 49,500 Ic^.a., with either voltage or current 10 per centin excess of the rated value. At 80 per cent power factor theover-all efficiency of the generators will be slightly in excessof 97 per cent. The thrust bearing is designed to support a load of1,000.000 lbs. This is slightly in excess of the weight of delta to Y to give 110,000 to 132,000 volts, at rated load.These are of the shell type, and individually rated at 15.000kv.a.. 25 cycle, 12.000/63.500/75,000. They are guaranteed98.2 per cent efficient at 80 per cent power factor. Theweight of a complete transformer is 100 tons; this includes6,500 Imperial gallons of oil, which is required with eachtransformer for cooling purposes. The transformer dimen-sions are 28.5 ft. high, 9.5 ft. diameter. Each bank is equip-ped with differentia! protection. Switching ApparatusThe switching apparatus consists of 12.000 and 110,000 88 THE ELECTRICAL NEWS Airplane View of Queenston-Chippawa Plant
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A wonderfully realistic Birds-eye view of the Chippawa-Queenston development of the Hydro-ElectricPower Commission of Ontario showing Canal, diffuser, forebay, gatehouse, penstocks, powerhouse andNiagara River. THE ELECTRICAL NEWS

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