PANCHIERI motor Germany PANCHIERI model PANCHIERI price

PANCHIERI motors are a type of electric motor powered by simultaneously connecting to 380V three-phase AC current (phase difference 120 degrees). Because the rotor of a three-phase asynchronous motor rotates in the same direction but at a different speed than the stator's rotating magnetic field, there is slip, hence the name three-phase asynchronous motor. The rotor speed of a three-phase asynchronous motor is lower than the speed of the rotating magnetic field. The rotor windings generate electromotive force and current due to relative motion with the magnetic field, and interact with the magnetic field to produce electromagnetic torque, achieving energy conversion.

PANCHIERI motor mechanical characteristics

Electric motors, also known as induction motors, are AC motors that achieve the conversion of electrical energy into mechanical energy through the interaction between the air gap rotating magnetic field and the induced current in the rotor windings to produce electromagnetic torque. They feature simple structure, ease of manufacturing, low cost, reliable operation, durability, high operating efficiency, and suitable working characteristics. Three-phase asynchronous motors are mainly used as prime movers to drive various production machinery, such as fans, pumps, compressors, machine tools, light industrial and mining machinery, threshers and crushers in agricultural production, and processing machinery for agricultural products, etc.

PANCHIERI motor excitation method

Motor excitation method refers to the method of generating a magnetic field in rotating electrical machines. DC motor excitation methods are divided into four types: separately excited DC motors, shunt-excited DC motors, series-excited DC motors, and compound-excited DC motors. A DC motor where the field winding has no connection to the armature winding and is supplied by another DC power source is called a separately excited DC motor. Permanent magnet DC motors can also be regarded as separately excited or self-excited DC motors, generally referred to directly as permanent magnet excitation. In shunt-excited DC motors, the field winding is connected in parallel with the armature winding. As a shunt generator, the terminal voltage generated by the motor itself supplies the field winding; as a shunt motor, the field winding and armature share the same power source, and its performance is identical to that of a separately excited DC motor. In series-excited DC motors, the field winding is connected in series with the armature winding, and then connected to the DC power source. The excitation current of this type of DC motor is the armature current. Compound-excited DC motors have two field windings: shunt and series. If the magnetomotive force produced by the series winding is in the same direction as that produced by the shunt winding, it is called cumulative compound excitation. If the directions of the two magnetomotive forces are opposite, it is called differential compound excitation. DC motors with different excitation methods have different characteristics. Generally, the main excitation methods for DC motors are shunt, series, and compound, while the main excitation methods for DC generators are separate, shunt, and compound.

PANCHIERI motor speed control

The motor consists of three parts: a squirrel-cage motor, an electromagnetic slip clutch, and a DC excitation power supply (controller). The DC excitation power supply has low power and is usually composed of a single-phase half-wave or full-wave thyristor rectifier. Changing the conduction angle of the thyristor can change the magnitude of the excitation current. The electromagnetic slip clutch consists of three parts: an armature, magnetic poles, and field windings. The armature and the latter have no mechanical connection and can rotate freely. The armature is coaxially connected to the motor rotor, called the driving part, driven by the motor; the magnetic poles are coupled to the load shaft via a coupling, called the driven part. When both the armature and magnetic poles are stationary, if DC current is applied to the field windings, several pairs of alternating N and S polarity magnetic poles will form along the circumference of the air gap, with magnetic flux passing through the armature. When the armature rotates with the driving motor, relative motion between the armature and magnetic poles induces eddy currents in the armature. These eddy currents interact with the magnetic flux to produce torque, driving the rotor with magnetic poles to rotate in the same direction, but its speed is always lower than the armature speed N1. This is a slip speed control method. By varying the DC excitation current of the slip clutch, the output torque and speed of the clutch can be changed. A hydraulic coupling is a hydraulic transmission device, generally composed of a pump impeller and a turbine, collectively known as working wheels, housed in a sealed casing. The casing is filled with a certain amount of working fluid. When the pump impeller rotates driven by the prime mover, the fluid inside is pushed by the blades to rotate. Under the action of centrifugal force, it enters the turbine along the outer ring of the pump impeller, exerting thrust on the turbine blades in the same rotational direction, thereby driving the production machinery. The power transmission capacity of the hydraulic coupling is consistent with the relative amount of fluid filling in the casing. During operation, changing the fill rate can change the turbine speed of the coupling, achieving stepless speed regulation.

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