Double-T armature - Shape of
armature used in some motors and generators.
[The invention of the electric motor 1856-1893]
/ref> Two 'T' shapes extending from axis.
Its use in early Siemens dynamos caused a pulsing variable DC output which was improved upon by the Gramme dynamo
A Gramme machine, Gramme ring, Gramme magneto, or Gramme dynamo is an electrical generator that produces direct current, named for its Belgian inventor, Zénobe Gramme, and was built as either a dynamo or a magneto. It was the first generator to ...
.[
Another improvement is the three-pole armature ('triple-T' armature) as in this image :
]
See also
* Brushed DC electric motor A brushed DC electric motor is an internally commutated electric motor designed to be run from a direct current power source and utilizing an electric brush for contact.
Brushed motors were the first commercially important application of elect ...
References
Electric power systems components
Electromagnetic components
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