Emmegi motor Germany Emmegi model Emmegi price

Emmegi motor refers to an electromagnetic device that realizes the conversion or transmission of electrical energy based on the law of electromagnetic induction. It generally refers to all machines that can convert mechanical energy into electrical energy and electrical energy into mechanical energy. The motor housing protection rating is IP44, and the cooling method is IC0141 totally enclosed fan-cooled (TEFC). The ambient air temperature varies with the seasons but does not exceed 15℃ to 40℃. The altitude does not exceed 1000m. Refer to the nameplate for rated frequency, rated voltage, insulation class, and duty cycle. When the supply voltage varies within ±0.05 of the rated value (frequency at rated value), the motor output power maintains the rated value.

Emmegi motor working principle

The starting and operation of the motor are formed by the interaction of the magnetic fields generated by the stator winding, the rotor squirrel-cage winding, and the permanent magnets. When the motor is stationary, a three-phase symmetrical current is supplied to the stator winding, generating a rotating stator magnetic field. This rotating stator magnetic field rotates relative to the rotor, inducing current in the squirrel-cage winding and forming a rotating rotor magnetic field. The asynchronous torque generated by the interaction between the rotating stator magnetic field and the rotating rotor magnetic field accelerates the rotor from standstill. During this process, the speed of the rotor permanent magnet field differs from that of the stator rotating magnetic field, producing an alternating torque. When the rotor accelerates to a speed close to the synchronous speed, the speed of the rotor permanent magnet field approaches that of the stator rotating magnetic field. The speed of the stator rotating magnetic field is slightly higher than that of the rotor permanent magnet field, and their interaction produces torque that pulls the rotor into synchronous operation. In the synchronous operating state, no current is generated in the rotor winding. At this point, only the permanent magnets on the rotor generate a magnetic field, which interacts with the stator rotating magnetic field to produce driving torque. Thus, it can be seen that the permanent magnet synchronous motor relies on the asynchronous torque of the rotor winding to achieve starting. After starting is complete, the rotor winding no longer plays a role, and the driving torque is produced by the interaction of the magnetic fields generated by the permanent magnets and the stator winding.

Emmegi motor performance

Motor performance is closely related to its excitation method. Typically, there are 4 types of excitation methods for DC motors: separately excited DC motor, shunt excited DC motor, series excited DC motor, and compound excited DC motor. Understand the characteristics of each of the 4 methods: 1. Separately excited DC motor: The field winding has no electrical connection with the armature; the field circuit is supplied by a separate DC power source. Therefore, the field current is not affected by the armature terminal voltage or armature current. 2. Shunt excited DC motor: The circuit is parallel, with current division. The voltage across the shunt field winding is the same as the voltage across the armature. However, the field winding is wound with thin wire and has many turns, resulting in high resistance, which keeps the field current low. 3. Series excited DC motor: The current is in series, with voltage division. The field winding is connected in series with the armature, so the magnetic field in this motor changes significantly with changes in armature current. To prevent large losses and voltage drops in the field winding, its resistance should be as low as possible. Therefore, series excited DC motors are usually wound with thicker wire and have fewer turns. 4. Compound excited DC motor: The motor flux is generated by the excitation currents in two windings.

Emmegi motor structure

The motor consists of two parts: the stator and the rotor. Note: Do not confuse the commutating pole with the commutator. The stator includes: main poles, frame, commutating poles, brush gear, etc. The rotor includes: armature core, armature (shu) winding, commutator, shaft, and fan, etc. The rotor part of a DC motor consists of the armature core, armature, commutator, and other components. The following provides a detailed introduction to each component in the construction. 1. Armature core part: Its function is to house the armature winding and conduct magnetic flux, in order to reduce eddy current loss and hysteresis loss in the armature core during motor operation. 2. Armature part: Its function is to generate electromagnetic torque and induced electromotive force (EMF) for energy conversion. The armature winding consists of many coils, or glass-fiber-insulated flat copper wires, or high-strength enamel-coated wires. 3. The commutator, also known as the rectifier, serves to convert the DC current from the brushes into AC current in the armature winding in a DC motor, keeping the direction of the electromagnetic torque stable. In a DC generator, it converts the AC EMF in the armature winding into DC EMF output at the brush terminals. The commutator is a cylinder composed of many segments insulated from each other by mica. Each end of every coil in the armature winding is connected to two different commutator segments. In a DC generator, the function of the commutator is to convert the alternating EMF in the armature winding into DC EMF between the brushes, allowing current to flow through the load. The DC generator outputs electrical power to the load, while current also flows through the armature coils. It interacts with the magnetic field to generate electromagnetic torque, the direction of which is opposite to that of the generator. The prime mover must overcome this magnetic torque to drive the armature rotation. Therefore, while the generator outputs electrical power to the load, it receives mechanical power from the prime mover, achieving the conversion of mechanical energy into electrical energy by the DC generator.

Weidou Intelligent Technology specializes in selling German Emmegi motors, Emmegi motors, Emmegi drives, Emmegi synchronous motors, Emmegi servo motors, Emmegi DC motors, Emmegi AC motors, Emmegi stepper motors, Emmegi synchronous motors, Emmegi asynchronous motors, Emmegi single-phase motors, Emmegi three-phase motors, Emmegi drive motors, Emmegi geared motors, Emmegi electric motors, Emmegi original German imports. Welcome customers to inquire and order.