Hydro-electric development in Ontario : (The Canadian Engineer, vol. xxxvi, p. 529, June 12, 1919)
- Publisher
- Elsevier Science
- Year
- 1919
- Tongue
- English
- Weight
- 70 KB
- Volume
- 188
- Category
- Article
- ISSN
- 0016-0032
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✦ Synopsis
Hydro-Electric
Development in Ontario.
(The Canadian Engineer, vol. xxxvi, p. 529, June 12, IgIg.)-Sixty thousand horsepower will be developed on the Nipigon River, about sixty miles northeast of Port Arthur, by the Hydro-Electric Commission of Ontario, and it is expected that by June of next year two 12,000 h.p. units will be in operation.
Propositions from several leading water turbine builders are now being considered, and after the contract for the " wheels " is let, which may be within the next two or three weeks, definite plans will be completed and active work will be commenced at the site of the new power house.
The Nipigon River flows from Lake Nipigon to Lake Superior, a distance of about 32 miles. The normal elevation of Lake Nipigon is 852 ft., and of Lake Superior, 602 ft. There are at least four power sites on the river, all of which will1 ultimately be developed by the Commission.
Between Lake Nipigon and Emma Lake are Virgin Falls, Rabbit Rapids and Devil Rapids, where the total head for development through Hannah Lake would be 42 ft. South of Emma Lake are Flat Rock Rapi,ds, White Chute and Pine Portage Rapids, with a head of 55 ft. South of Lakes Maria and Jessie-near Cameron's Pool-are two sites. The upper site affords 65 ft. net head and the lower, 53 ft. The upper site at Cameron's Pool is considered to be the most advantageous one on the river, and naturally will be developed first.
The design of the proposed plant includes a regulating dam that can raise the river level to the elevation of Lakes Maria and Jessie, which will form natural storage reservoirs.
It is estimated that a peak load of 60,000 h.p. can be taken care of by the normal flow, and that is the size of the plant that will be built.
The initial installation will be two units, each 12,000 h.p., but three more will be installed at a later date. Single runner vertical water turbines will be direct-connected to g-phase, 6o-cycle, ~z,ooovolt, internal revolving field generators, each IO&J k.v.a. (80 per cent. factor, maximum rating).
The generators will be arranged for parallel operation and will supply light, heat and industrial power on the Commission's " Nipigon System." This development is further west than any other yet undertaken by the Commission.