Wistro motor Germany Wistro model Wistro price

Wistro motors are named for their armature winding and field winding connected in series. Single-phase series-wound motors are AC/DC universal motors; they can operate on either AC or DC power supplies. The single-phase series motor is widely used. Its advantages include high speed, high starting torque, compact size, light weight, resistance to stalling, and a wide applicable voltage range. Speed control via voltage adjustment is simple and easy to implement.

Wistro motor structure

Motor rotor position sensors fall into three types: photoelectric, magnetosensitive, and electromagnetic. Brushless DC motors using photoelectric position sensors have photoelectric sensing devices arranged at specific positions on the stator assembly; the rotor carries a light-blocking plate, and the light source is an LED or small bulb. As the rotor rotates, the light-blocking plate causes the photosensitive components on the stator to intermittently emit pulse signals at a certain frequency. Magnetosensitive position sensors use semiconductor sensitive elements whose characteristics change with the surrounding magnetic field according to a specific pattern; their basic principles are the Hall effect and magnetoresistive effect. The main operating principle of magnetosensitive elements is the magnetic effect of electric current, primarily the Hall effect. In brushless DC motors using magnetosensitive position sensors, magnetosensitive sensing devices (such as Hall elements, magnetosensitive diodes, magnetosensitive transistors, magnetoresistors, or dedicated ICs) are mounted on the stator assembly to detect changes in the magnetic field produced by the permanent magnets as the rotor rotates. In brushless DC motors using electromagnetic position sensors, electromagnetic sensor components are installed on the stator assembly; when the position of the permanent magnet rotor changes, electromagnetic effects cause the electromagnetic sensor to generate high-frequency modulated signals (whose amplitude varies with rotor position). In recent years, sensorless brushless DC motors have emerged; these motors use the back EMF of the stator windings as the rotor magnet position signal. After detection, this signal is processed by digital circuits and sent to logic switching circuits to control commutation of the brushless DC motor. By eliminating the position sensor, the brushless motor structure becomes more compact, leading to increasingly widespread application.

Wistro motor power supply variable frequency

Motor power supply: AC motors generally use a three-phase system because three-phase AC motors offer clear advantages over single-phase motors in performance metrics, material utilization, and price. For the same power rating, three-phase motors are smaller, lighter, and less expensive than single-phase motors. Three-phase motors have self-starting capability. Single-phase motors lack starting torque; special measures are required to address starting issues. Single-phase motor torque is pulsating and noise is relatively high, but the required power supply is simpler, making them very convenient for household use. Therefore, small household motors and instrument motors often use single-phase designs. Variable frequency drives (VFDs) apply variable frequency technology and microelectronics to control AC motor power transmission by changing the frequency and amplitude of the motor's working power supply. Features of AC motor speed-control VFDs: ■ Low-frequency torque output 180% , good low-frequency operating characteristics, maximum output frequency 600Hz, capable of controlling high-speed motors, comprehensive detection and protection functions (overvoltage, undervoltage, overload), restart after instantaneous power failure, protection against acceleration, deceleration, and stall during operation, automatic identification of motor dynamic parameters to ensure system stability and precision, fast response during high-speed stopping, rich and flexible input/output interfaces and control methods, strong universality.

Wistro motor structure

The motor structure is basically the same as that of a DC motor, with different armature structures and excitation methods. In practice, slotted-core armature structures are often used; conductors placed in armature slots experience lower electromagnetic forces, making it easier to meet mechanical strength requirements for insulation materials during high-speed operation. Although excitation methods can be series or shunt, shunt motors produce significantly lower torque than series motors. Therefore, DC motors are typically manufactured with series excitation and slotted armatures. AC/DC universal motors have main poles on the stator fitted with series windings; the rotor is similar to the slotted armature of a DC motor, and the magnetic circuit consists of laminated iron cores. Stator laminations facilitate manufacturing and reduce costs. Armature cores generally use skewed slots. The air gap between stator and rotor is larger and non-uniform compared to DC motors; the maximum air gap at the sharpest point is 3 to 4 times the main air gap. Other components, such as brush holders and end caps, are similar to those of standard DC motors. AC/DC universal motors come in different structural forms; sometimes they are made in split assemblies, similar to torque motor structures. For high-capacity, high-speed, or special-purpose AC/DC universal motors, commutating poles are used to improve commutation, suppress sparking, and reduce radio interference.

Weidou Intelligent Technology specializes in selling German Wistro motors, Wistro motors, Wistro drives, Wistro synchronous motors, Wistro servo motors, Wistro DC motors, Wistro AC motors, Wistro stepper motors, Wistro synchronous motors, Wistro asynchronous motors, Wistro single-phase motors, Wistro three-phase motors, Wistro drive motors, Wistro geared motors, Wistro electric motors, Wistro original imports from Germany. Customers are welcome to inquire and order.