Major similarities between motor and generator. Both use the magnetic field as a coupling medium to convert from. Moter converts Electrical → Mechanical→. The generator converts Mechanical → Electrical. Both maybe have armature winding, field winding, core… etc. But the working concept of both is not similar. The principle of rotating a conductor in a magnetic field to generate current is used in electrical generators. A generator converts mechanical energy (motion) into electrical energy. Generator A generator is a device that converts mechanical energy into electrical energy. The layout of a simple AC generator is shown in Figure 11.3 . generator transformer Electric Motors, Generators, and Transformers As we learned previously, a current-carrying wire in a magnetic field experiences a force—recall F = I ℓ B sin θ . Electric motors, which convert electrical energy into mechanical energy, are the most common application of magnetic force on current-carrying wires. Another difference between AC and DC generators in this regard is that while AC generators have 2 slip rings, DC generators have only one. The two semi-circular metal rings in the commutator are insulated from one another. The ends of the armature in the DC generator are connected to one-half of the commutator. The Oxford English Dictionary defines "motor" as a machine that supplies motive power for a vehicle or other device with moving parts. Similarly, it tells us that an engine is a machine with moving parts that converts power into motion. "We use the words interchangeably now," says Fuller. "But originally, they meant very different motor in order to protect the motor from the mentioned overvoltages. On the other hand, one can ask if the same statement i.e. "overvoltages if switching currents < 600A" is also applicable for the generators. Most of the generator circuit breakers (GCBs) are equipped with a surge Motor is a device that used to transform electrical energy into mechanical energy. While Generators is a device that are used to convert mechanical energy into electrical energy. Both of these devices are working on the principle of Faraday law of electromagnetic induction. 4. BhlBrushless DC motor: a close cousin of a permanent magnet stepper motor with electronic controllers 5. Universal motor: If a seried dc motor has a laminated stator frame, it can run effectively htt // l d iki di / iki di / /6/67 from an ac supply as well as dc, this is the universla motor. speed than the stator field, the motor runs in motoring mode. Otherwise, the motor operates in generator mode. The maximum torque, which can be obtained at the motor shaft, is called pullout torque. The nominal torque is conventionally half of the pullout torque. The motor usually operates in the linear region between the The difference in rpm is determined by the gear train configuration inside the box. 1 2 3 Author: Jim Carlin Page 5 5. Comprehension Exercise: a. What is the difference between a motor and a generator? (Ans: motor converts electricity into mechanical movement; generator converts mechanical movement into electricity.) b. is little difference between an AC generator and an AC synchronous motor. It is a matter of what is driving the system - an electric motor or an engine-driven generator. This also simplifies the construction of the generator. These machines very often also are called 'alternators' i