Understanding DC Generators and Power Types in Motors

DC Generators: Contains a rectangular loop rotating in a uniform magnetic field. It consists of 2 main parts: the inductor, which creates the magnetic field, and the conductor, which is crossed by the lines of field strength. Operation: When the loop rotates, the flow of the magnetic field changes with time, and there is an emf. The ends of the loop connect to 2 rings that rotate with the coils. The connections to the external circuit are made via brushes. Starters: The three-phase stator winding of an asynchronous motor can be connected in star or triangle, depending on the network and voltage indicated on the motor's nameplate. There are 6 terminals for the 3 motor windings, but the connection terminal must be grounded. For the star connection, simply connect the terminals with a few bridges at the end (ZXY). The delta connection is achieved by connecting the terminals with a bridge: (UZ), (VX), (WY). Active Power: The power corresponds to a continually increasing value, so the time is crucial. This power circuit is produced temporarily in an irreversible manner and is therefore utilized. Reactive Power: The power corresponds to the energy entering the circuit during one period, which accumulates in the fields and is returned to the network in the next period.

Apparent Power: Defined as the amount of electrical energy or work transported or consumed in a given unit of time. If the voltage remains constant, the power is directly proportional to the current (intensity). This increases if the current increases. 2 - The apparent power (also called complex) of an alternating current electrical circuit is the vector sum of the energy dissipated by this circuit over time as heat or work, and the energy used for the formation of electric fields and magnetic components that fluctuate between these components and the energy source. Rotor Cage: Composed of a series of parallel bus bars positioned between the heads, held together by hoops via 2 conductors to create a short circuit. The iron core closes the magnetic circuit of the stator. The downstream from each stator pole has a corresponding opposite meaning in the north with respect to differentiating the current in the rings.