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On 1 May 1978, the plant was entered in the
Canadian Engineering Heritage Record as a model reflecting progressive adaptation to emerging technology, and remains today as one of the few plants of its type still in active
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Unit 2: (installed in 1900) Victor type (early
Francis turbine) 1.4 MW Manufactured by Stillwell, Bierce & Smith Vaille Co. Replaced in 1908 with Horizontal Francis 1.57 MW Manufactured by Voith
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Unit 2 (installed in 1900): 3-phase, 60 Hertz, 550 volts
Manufactured by Westinghouse Replaced in 1926 with 3-phase, 60 Hertz, 2,300 volts Manufactured by General Electric
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Unit 1: (installed in 1902) Inward-flow Girard type (impulse turbine) 1.4 MW Manufactured by
Stillwell, Bierce & Smith Vaille Co. Replaced in 1912 with Horizontal
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In 1900, rockfill with timber facing. Replaced in 1926 with concrete gravity. Steel anchors added in 1992. 9.1-meter maximum height.
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Unit 1 (installed in 1902): 3-phase, 60 Hertz, 550 volts
Manufactured by Westinghouse Rewound in 1926 to 2,300 volts
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In 1920 Reid renamed the company the St. John's Light and Power
Company. On 7 February 1921, an
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that carried water from the dam to the generating station, cutting off all electrical power to
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Unit 3: (installed in 1926) Horizontal
Francis 2.05 MW Manufactured by Armstrong Whitworth
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1953: Steel penstock (surge tank riser) replaced with 2.3-metre-diameter steel pipe
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1999: Lower 740.7 metres of penstock replaced with 2.3-metre-diameter steel pipe
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48.8 metres long by 7.3 metres wide by 4.9 metres high
Masonry construction
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Unit 3 (installed in 1926): 3-phase, 60 Hertz, 2,300 volts
Manufactured by
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Location of Petty
Harbour Generating Station in Newfoundland and Labrador
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for almost five days. Then, in 1924, the plant changed ownership to the
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2021: Remainder of penstock replaced with 2.3-metre-diameter steel pipe
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1,057 metres long, 2.4-meter by 2.4-meter cross-section wooden flume
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112.2 metres long, 2.4-meter by 2.4-meter cross-section rock tunnel
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Earthfill with concrete overflow spillway and timber crib outlet.
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Zoned earthfill (rebuilt 1998–1999) Concrete outlet conduit
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1926: 975-metre-long, 2.3-meter-diameter wood stave penstock
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Concrete with steel gate and lift (integral to forebay dam)
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Hydroelectric power stations in Newfoundland and Labrador
565:. Canada's Historic Places, Administered by Parks Canada
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Petty Harbour-Maddox Cove, Newfoundland and Labrador
46:. Unsourced material may be challenged and removed.
472:115.2 metres long, 2-meter-diameter steel penstock
563:"Petty Harbour Hydro-Electric Generating Station"
402:Original Construction: Reid Newfoundland Company
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542:"Hydro Development in Newfoundland and Labrador"
524:Unlined canal excavated in rock 137 metres long
336:destroyed 23 m (75 ft) of the wooden
295:Petty Harbour Hydro Electric Generating Station
371:Front of generating station at Petty Harbour
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359:Gull Hill intake on Petty Harbour station
106:Learn how and when to remove this message
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392:Average Yearly Output: 18 gigawatt-hours
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118:Dam in Canada, Newfoundland and Labrador
400:Original Design: G.H. Massey, A.C. Rice
321:. Operation commenced on 19 April 1900.
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328:Original Turbine at Petty Harbour 1900
544:. Memorial University of Newfoundland
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44:adding citations to reliable sources
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55:"Petty Harbour Generating Station"
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315:St. John's Street Railway Company
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289:Petty Harbour Generating Station
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124:Petty Harbour Generating Station
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31:needs additional citations for
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346:Royal Securities Corporation
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396:Average Streamflow: 5.6 cms
317:, a company established by
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307:Newfoundland and Labrador
303:Petty Harbour–Maddox Cove
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202:47.4652750°N 52.7124389°W
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175:Newfoundland and Labrador
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419:1.57 MW Manufactured by
619:Renewable energy portal
262:Installed capacity
218:Construction began
207:47.4652750; -52.7124389
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313:. It was built by the
301:generating station in
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275:Annual generation
491:Dams & Reservoirs
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40:improve this article
540:McBride, Michelle.
376:General Information
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504:Bay Bulls Big Pond
387:Newfoundland Power
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230:Newfoundland Power
484:Intake Structure:
394:Head: 57.9 metres
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444:General Electric
390:Capacity: 5.3 MW
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398:On-Line: 1900
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96:February 2022
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29:This article
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605:Water portal
567:. Retrieved
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546:. Retrieved
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38:Please help
33:verification
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319:Robert Reid
205: /
181:Coordinates
569:2011-04-11
548:2009-01-21
528:References
454:Powerhouse
434:Generators
380:Location:
342:St. John's
66:newspapers
466:Original:
406:Equipment
334:avalanche
631:Category
520:Tailrace
462:Penstock
411:Turbines
364:service.
350:Montreal
338:penstock
252:Turbines
226:Owner(s)
167:Location
496:Forebay
385:Owner:
80:scholar
279:18 GWh
171:Canada
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421:Voith
297:is a
87:JSTOR
73:books
293:The
266:5.3
221:1898
59:news
348:of
42:by
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268:MW
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