REGAL motor Germany REGAL model REGAL price

REGAL motors refer to electric motors with a rated voltage above 1000V. Commonly used voltages are 6000V and 10000V; due to differences in foreign power grids, there are also voltage levels of 3300V and 6600V. High-voltage motors were developed because motor power is proportional to the product of voltage and current. Therefore, when the power of low-voltage motors increases to a certain extent (such as 300KW/380V), the current is limited by the allowable carrying capacity of the wires, making it difficult to increase further or resulting in excessive costs. It is necessary to increase the voltage to achieve high-power output. The advantages of high-voltage motors are high power and strong shock resistance; the disadvantages are high inertia, making starting and braking difficult.

REGAL motor working principle

The motor contains fixed ring-shaped permanent magnets. Current flowing through the coils on the rotor generates Ampere force. When the coils on the rotor are parallel to the magnetic field, the direction of the magnetic field experienced during continued rotation changes. At this point, the brushes at the end of the rotor alternately contact the commutator segments, changing the direction of the current in the coils. As a result, the direction of the Lorentz force remains unchanged, allowing the motor to maintain rotation in one direction. The working principle of a DC generator is to convert the alternating electromotive force induced in the armature coils into direct current electromotive force at the brush terminals, relying on the commutation action of the commutator in conjunction with the brushes. The direction of the induced electromotive force is determined by the right-hand rule (magnetic field lines point into the palm, the thumb points in the direction of conductor motion, and the other four fingers indicate the direction of the induced electromotive force in the conductor). The direction of the force on the conductor is determined by the left-hand rule. This pair of electromagnetic forces forms a torque acting on the armature, known as electromagnetic torque in rotating motors. The direction of the torque is counter-clockwise, attempting to rotate the armature counter-clockwise. If this electromagnetic torque can overcome the resisting torque on the armature (such as resisting torque caused by friction and other load torques), the armature will rotate counter-clockwise.

REGAL motor classification

Embedding short-circuited copper rings or short-circuited coil groups in part of the stator poles forms a shaded-pole single-phase motor. Shaded-pole single-phase motors include salient-pole and non-salient-pole types. When the stator winding is supplied with single-phase AC current, most of the pulsating magnetic flux generated couples directly to the rotor through the air gap, while a small portion of the flux passes through the shaded-pole copper ring, generating induced flux. This combines with the original flux before entering the rotor magnetic circuit through the air gap. According to Lenz's law, the induced flux always opposes changes in the original flux, and the induced flux lags behind the original flux in phase. This creates two magnetic fluxes that are spatially displaced by a certain angle and have a phase difference, resulting in a rotating magnetic field with significant ellipticity. The rotation direction of a shaded-pole motor is fixed, moving from the unshaded part to the shaded part. These motors have low power, low starting torque, simple structure, low cost, and easy maintenance. Shaded-pole motors are generally used in small blower motors and fan motors.

REGAL motor applications

A motor refers to an asynchronous motor powered by 220V single-phase AC power. Because 220V power supply is very convenient and economical, and household electricity usage is also 220V, single-phase motors are not only widely used in production but are also closely related to people's daily lives. Especially with the increasing standard of living, the usage of single-phase motors in household appliances is growing. Production applications include micro water pumps, grinders, threshers, crushers, woodworking machinery, and medical devices. Household applications include electric fans, hair dryers, exhaust fans, washing machines, and refrigerators. There are many types, but the power is relatively low. These motors typically have two-phase windings on the stator, and the rotor is a standard squirrel-cage type. Different distributions of the two-phase windings on the stator and different power supply conditions can produce different starting and operating characteristics.

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