A direct current machine is an electric machine. This is an electromechanical converter allowing the bidirectional conversion of energy between an electrical installation through which a direct current flows and a mechanical device; depending on the energy source.
In motor operation, electrical energy is transformed into mechanical energy.
In generator operation, the mechanical energy is transformed into electrical energy (it can act as a brake). In this case it is also called dynamo.
However, since the DC machine is reversible and capable of behaving either as a "motor" or as a "generator" in the four quadrants of the torque-speed plane1,2,3, the motor/generator distinction is "commonly" made in relation to to the end use of the machine.
Invented by Zénobe Gramme and presented to the Academy of Sciences in Paris in 18714, it was initially a simple direct current generator (for galvanoplastic applications4, for example, accumulators being expensive).
A direct current machine is an electric machine. This is an electromechanical converter allowing the bidirectional conversion of energy between an electrical installation through which a direct current flows and a mechanical device; depending on the energy source.
In motor operation, electrical energy is transformed into mechanical energy.
In generator operation, the mechanical energy is transformed into electrical energy (it can act as a brake). In this case it is also called dynamo.
However, since the DC machine is reversible and capable of behaving either as a "motor" or as a "generator" in the four quadrants of the torque-speed plane1,2,3, the motor/generator distinction is "commonly" made in relation to to the end use of the machine.
Invented by Zénobe Gramme and presented to the Academy of Sciences in Paris in 18714, it was initially a simple direct current generator (for galvanoplastic applications4, for example, accumulators being expensive).
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