HAINZL motor Germany HAINZL model HAINZL price

HAINZL 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 level (such as 300KW/380V), the current is limited by the allowable carrying capacity of the conductors, making it difficult to increase further or resulting in excessive costs. High voltage is required to achieve high-power output. Advantages of high-voltage motors include high power and strong shock resistance; disadvantages include high inertia, making starting and braking difficult.

HAINZL motor maintenance

Preparation and inspection before motor start-up: Check whether the grounding of the motor and starting equipment is reliable and complete, and whether the wiring is correct and in good condition. Check whether the voltage and frequency indicated on the motor nameplate match the power supply voltage and frequency. For newly installed or long-idle motors, check the phase-to-phase and phase-to-ground insulation resistance of the windings before start-up. The insulation resistance should be greater than 0.5 MΩ. If it is lower than this value, the windings must be dried. For wound-rotor motors, check whether the brush device on the collector ring works properly and whether the brush pressure meets requirements. Check whether the motor rotates flexibly and whether the oil in the sliding bearings has reached the specified level. Check whether the rated current of the fuses used for the motor meets requirements. Check whether all fastening bolts and mounting bolts of the motor are tightened. After all the above checks meet the requirements, the motor can be started. After the motor starts, run it no-load for about 30 minutes, observing carefully for any abnormalities. If abnormal conditions such as noise, vibration, or overheating are found, take measures to eliminate them before putting the motor into operation. When starting a wound-rotor motor, connect the starting rheostat to the rotor circuit. For motors with a brush-lifting mechanism, lower the brushes, disconnect the short-circuiting device, close the stator circuit switch, and operate the rheostat. When the motor approaches rated speed, lift the brushes, close the short-circuiting device, and the motor start-up is complete.

HAINZL motor structure

Motor structures: 1, flat-type single-sided long-stator electromagnetic linear synchronous motor. There is tangential driving force and normal attractive force between the mover and stator of the flat-type single-sided long-stator linear synchronous motor. Motor excitation can be changed by adjusting the current magnitude in the mover pole windings. During operation, the long stator windings are switched on in sections. Since only part of the area under each energized stator section is covered by poles, the leakage reactance of the stator windings is large. Part of the supply voltage is used to overcome the leakage reactance voltage drop. 2, cylindrical linear synchronous motor. The cylindrical linear synchronous motor is a cylindrical linear motor with an appearance similar to a rotary motor. This type of linear motor is generally of the short-primary, long-secondary configuration. 3, permanent magnet linear synchronous motor. The permanent magnet linear synchronous motor uses permanent magnets for excitation, combining the characteristics of both permanent magnet motors and linear motors. Compared with linear induction motors, permanent magnet linear synchronous motors have higher mechanical performance indicators, smaller size, lighter weight, and regenerative braking capability. The main disadvantages are higher cost and more complex control. 4, hybrid-excited linear synchronous motor. Among linear synchronous motors, there is also an excitation system that combines high-performance permanent magnets with electrically excited coils, also known as controllable permanent magnet linear synchronous motors. Its main feature is that basic excitation is provided by permanent magnets, while dynamic adjustment is achieved through electrical excitation, highlighting the advantage of controllability.

HAINZL motor classification

Motors are classified into three-phase and single-phase types based on the number of phases. For the same volume, the output of three-phase reluctance synchronous motors is 1/3 to 2/3 higher than that of single-phase reluctance synchronous motors. Single-phase reluctance synchronous motors can be further divided into capacitor-start, capacitor-run, and capacitor-start-and-run types based on the starting method. Capacitor-start motors have high starting torque. Capacitor-run motors have good running performance, high efficiency, high power factor, and low noise, but lower starting torque. Capacitor-start-and-run motors combine the advantages of the above two types, offering relatively high starting torque and better running performance. Reluctance synchronous motors are a type of miniature synchronous motor. Their rotor structure is salient-pole. Externally, it is a cylinder or disc, with the entire rotor assembled from magnetic and non-magnetic materials. The magnetic reluctance in the direct axis direction is lower than that in the quadrature axis direction, creating a salient-pole magnetic effect. When the stator windings are powered, a rotating magnetic field is generated in the air gap. Under the action of the rotating magnetic field, magnetic pull is produced, dragging the rotor to rotate synchronously. Reluctance synchronous motors are synchronous motors with unexcited rotors having several regularly shaped protrusions, equipped with squirrel-cage windings for starting or without them. They are also known as reluctance motors. A reluctance motor is equivalent to a salient-pole synchronous motor without excitation windings, generating electromagnetic torque by utilizing the difference in magnetic reluctance in the rotor magnetic circuit.

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