ARTIFACT WORKSHEET

OH NO.: OH0852.002

Worksheet completed by: Suzanne Beauvais Collector: Anna Adamek

Group: Énergie électrique/Electric Energy Category: Mesurage/Measurement

Article: watt-hour meter/ wattheure mètre Type: Graphic/induction/polyphase/switchboard

Graphique/induction/polyphasé/tableau de distribution

Model: Thomson/recording

Serial number: 937879Manufacturer: General Electric

address: Schenectady, New York, U.S.A.Year manufactured: 1899-1905

Distributor:address:

Source: Ontario Hydro

Dimensions: l. w. h. Weight:

Function: Pour mesurer et enregistrer le nombre de watts utilisésMEASURES AND RECORDS the energy used

References:http://www.edisontc.org/ui/home/course/unit-i/inventors-of-the-ammeter/H. G. Solomon, Electricity Meters  :…, London, 1906http://watthourmeters.com/generalelectric/thomson-swb.htmlGeneral Electric Company, General Data on Thomson Recording Wattmeters, 1903.

Patent references: Patented May 17, 1887, March 1, 1891, March 24, 1891, Dec.29, 1897 (?), Aug. 8, 1899

Period of use: Area of use: Montpelier, Vermont, U.S.A.

Significance to Canada:Fait partie de la collection Hydro-Ontario. Cette collection acquise par le musée des sciences et de la technologie du Canada en 1992 documente la culture matérielle de l’histoire de l’électricité et ses usages. Avant d’appartenir à Hydro Ontario, ce compteur provenait de l’University of Vermont. D’après leur information, le compteur avait été utilisé par la Green Mountain Power Co. de Montpelier

Part of the Ontario Hydro Collection. This collection was acquired by the CSTM in 1992. It documents the material culture of the history of electricity and its uses. Before belonging to Ontario Hydro, it was owned by U. of Vermont and had been used by the Green Mountain Power Co. of Montpelier, Vermont.

Significance to technology: Premier modèle de compteur polyphasé de General Electric

This meter was GE's first attempt at a polyphase switchboard meter

Information tirée de H. G. Solomon, Electricity Meters :…, London, 1906, p. 206, 208.

Information tirée de http://watthourmeters.com/generalelectric/thomson-swb.html

Thomson polyphase, round pattern (1899-1905) Up Next

 This meter was GE's first attempt at a polyphase switchboard meter. This meter was massive (bigger than the Thomson Recording Wattmeters) in order to space the two stators far enough apart to minimize interference between the stators. This meter used construction very similar to the Form C-4 and High Torque meters, including the platform that supported the parts around the disk's circumfrence. The service version of this was known as the Form DF-2. Five- or six- dial watthour registers were used on these models. Two different covers were used, a metal one with a pane on glass in front and one with a circular piece of glass on the sides to permit visibility of all inner parts. 

GE polyphase recording wattmeter bulletins GE polyphase recording wattmeter bulletins

Materials: metal, verre,Missing parts:Comments:

Markings/Inscriptions:Étiquette OH: 133Étiquette collante (sticker) :133

Sur disque: R1550 inscrit à la main en encre noireSur bobine : gravé 130--

Plaque: 937879 CAT. NO.AMP 75VOLTS 12000CYCLES 60

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