Zénobe Théophile Gramme (1826 to 1901) was a Belgian electrical engineer who invented the Gramme machine, a direct current dynamo able to generate smoother current and much higher voltages than the dynamos known before it. Born at Jehay-Bodegnée, he was poorly educated and semi-literate all his life, but he had a gift for handicraft and became a joiner. After moving to Paris he worked as a model maker for a maker of electrical equipment and became interested in technology. Having built an improved dynamo, he opened a factory with Hippolyte Fontaine that made the Gramme dynamo, the Gramme ring and the Gramme armature, and a Gramme dynamo was shown at the Vienna exhibition of 1873. In that year he and Fontaine found by accident that the machine was reversible and spun as a motor when connected to a direct current supply, giving the first industrially successful powerful electric motor. He was made an officer of the Legion of Honour in 1877 and received the Volta Prize in 1888.
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Source Zénobe Gramme (Wikipedia)
Source Zénobe Gramme (Wikipedia)
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Source Zénobe Gramme (Wikipedia)
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Source Zénobe Gramme (Wikipedia)Lead, nationalityQuote, Lead, nationality
Zénobe Théophile Gramme (French pronunciation: [zenɔb teɔfil ɡʁam]; 4 April 1826 – 20 January 1901) was a Belgian electrical engineer.
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1. Zénobe Gramme (Wikipedia)
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Zénobe Théophile Gramme (French pronunciation: [zenɔb teɔfil ɡʁam]; 4 April 1826-20 January 1901) was a Belgian electrical engineer.
Lead, death year
Zénobe Théophile Gramme (French pronunciation: [zenɔb teɔfil ɡʁam]; 4 April 1826-20 January 1901) was a Belgian electrical engineer.
Article, gender
Having built an improved dynamo, Gramme, in association with Hippolyte Fontaine, opened a factory to develop the device.
Lead, role inventor
He invented the Gramme machine, a type of direct current dynamo capable of generating smoother (less AC) and much higher voltages than the dynamos known to that point.
Lead, nationality
Zénobe Théophile Gramme (French pronunciation: [zenɔb teɔfil ɡʁam]; 4 April 1826-20 January 1901) was a Belgian electrical engineer.
In Field: Electrical Engineering, Lead, field
Zénobe Théophile Gramme (French pronunciation: [zenɔb teɔfil ɡʁam]; 4 April 1826-20 January 1901) was a Belgian electrical engineer.
Associated With: Dynamo, Lead, credited invention
He invented the Gramme machine, a type of direct current dynamo capable of generating smoother (less AC) and much higher voltages than the dynamos known to that point.
Associated With: Electric Motor, Gramme machine as motor
The Gramme machine was the first usefully powerful electrical motor that was successful industrially.
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