WEBVTT

00:00.000 --> 00:06.445
Our universal motor (comes from an electric mixer!)

00:06.445 --> 00:13.670
The rotor accessible in yellow is supplied by the brushes on the sides

00:13.670 --> 00:21.392
Half stator coils accessible in green and blue

00:21.392 --> 00:31.454
Series mounting: all in series!

00:31.454 --> 00:40.836
Designed for 230 V, it fails to turn in 24 Volts!

00:40.836 --> 00:57.389
In parallel, the rotor being supplied directly, the motor runs

00:57.389 --> 01:07.152
despite the reversal of current, the universal motor has not changed direction!

01:07.152 --> 01:22.116
Changing the direction of the current in the stator AND the rotor = canceling the change!

01:22.116 --> 01:41.402
Alternatively this engine runs too! Since its meaning is not related to polarities ...

01:41.402 --> 01:55.400
Called universal because it runs continuously whatever the meaning and in alternative!

01:55.400 --> 02:02.223
Even in an alternative, the brushless (more reliable, better efficiency) gradually replaces it