Gramme dynamo

device

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June 29, 2026

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The Gramme dynamo, invented by Belgian-born electrical engineer Zénobe-Théophile Gramme in 1869, was a continuous-current electrical generator that significantly advanced the development of electric power. Building on Michael Faraday's discovery of electromagnetic induction, Gramme's dynamo produced much higher voltages than previous models. A key innovation was its reversibility, demonstrated in 1873, allowing it to function as an electric motor as well. This invention was a crucial step in the widespread adoption and application of electric power.12

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energy conversion
Electric generators and motors
Dubbed the Gramme dynamo, this device contributed much to the general acceptance of electric power. By the early 1870s Gramme had developed several other dynamos, one of which was reversible and could be used as an electric motor. Electric motors, which convert electrical energy to mechanical energy,…
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Dubbed the Gramme dynamo, this device contributed much to the general acceptance of electric power. By the early 1870s Gramme had developed several other dynamos, one of which was reversible and could be used as an electric motor. Electric motors, which convert electrical energy to mechanical energy,…
Read More

Zénobe-Théophile Gramme
In 1873 a Gramme dynamo was exhibited at the Vienna exhibition, where it was demonstrated that the device was reversible and could be used as an electric motor.
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In 1873 a Gramme dynamo was exhibited at the Vienna exhibition, where it was demonstrated that the device was reversible and could be used as an electric motor.
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