Elektromotorenwerk Brienz motor Germany Elektromotorenwerk Brienz model Elektromotorenwerk Brienz price

Elektromotorenwerk Brienz motors are a new generation of gear reduction motors, featuring compact size, low noise, maintenance-free operation, and an attractive appearance. The speed ranges from 0.83r/min to 300r/min. This series of low-speed motors is a new high-tech product that integrates electromagnetic drive and reduction mechanism within the motor housing. The low speed and high torque can directly meet customer requirements without the need for additional reduction devices. The motor uses Class B and Class F insulation, with protection ratings of IP44 and IP55, and voltages of 220V and 380V.

Elektromotorenwerk Brienz motor fault handling

Motor measurement terminals. (1) First, identify the two ends (start and finish) of each of the three-phase windings. Set the multimeter to the resistance range for measurement. Coils belonging to the same phase are connected and show no resistance, while coils not belonging to the same phase are open-circuit. Therefore, the multimeter can be used to determine which two wire ends belong to the same phase winding. (2) Identify the like-polarity terminals of the lead wires from two of the windings. Set the analog multimeter to the DC current range with the smallest scale. Connect the two wire ends of any one phase winding to the multimeter probes. Then, briefly touch the two wire ends of another phase winding to the positive and negative terminals of a dry cell battery. At the instant the battery is connected to the coil, if the meter needle deflects toward the greater-than-zero side (i.e., clockwise), the battery positive terminal and the black probe of the multimeter are like-polarity terminals; otherwise, they are opposite. Daily maintenance content for continuously operating three-phase asynchronous motors: visual inspection; check whether the fan is working properly; check for abnormal vibration; check whether the coupling connection is reliable; check whether the base mounting is secure; check whether the bearings are working properly (by listening to sound); check whether the temperature is normal (using an infrared thermometer); regularly inspect wire connections and switch contacts; check whether the operating current is normal (using a clamp-on ammeter); additionally, wound-rotor motors require inspection of carbon brushes and slip rings.

Elektromotorenwerk Brienz motor mechanical characteristics

There are two methods for changing the motor rotation direction: one is the armature reversal method, which keeps the polarity of the field winding terminal voltage unchanged and reverses the motor by changing the polarity of the armature winding terminal voltage; the other is the field winding reversal method, which keeps the polarity of the armature winding terminal voltage unchanged and changes the motor direction by changing the polarity of the field winding terminal voltage. When the voltage polarities of both are changed simultaneously, the motor's rotation direction remains unchanged. Separately excited and shunt DC motors generally use the armature reversal method to achieve forward and reverse rotation. Separately excited and shunt DC motors are not suitable for using the field winding reversal method to achieve forward and reverse rotation because the field winding has many turns and large inductance. When the field winding is reversed, a large induced electromotive force will be generated in the field winding, which may damage the switch and the insulation of the field winding. Series DC motors are suitable for using the field winding reversal method to achieve forward and reverse rotation because the voltage across the armature of a series DC motor is high, while the voltage across the field winding is low, making reversal easy. Electric locomotives often use this method.

Elektromotorenwerk Brienz motor mechanical characteristics

Irreversible demagnetization issue in motors. If designed or used improperly, permanent magnet synchronous motors may experience irreversible demagnetization, also known as loss of magnetism, at excessively high temperatures (for NdFeB permanent magnets) or excessively low temperatures (for ferrite permanent magnets), under the armature reaction caused by impact currents, or during severe mechanical vibration. This leads to a decline in motor performance or even renders the motor unusable. Therefore, it is necessary to research and develop methods and devices for checking the thermal stability of permanent magnet materials for use by motor manufacturers, and to analyze the demagnetization resistance of various structural types, so that appropriate measures can be taken during design and manufacturing to ensure that permanent magnet synchronous motors do not lose magnetism. Cost issues. Ferrite permanent magnet synchronous motors have simple structural processes and reduced weight, so their total cost is generally lower than that of electrically excited motors, leading to widespread application. Since the current price of rare earth permanent magnets is relatively high, the cost of rare earth permanent magnet motors is generally higher than that of electrically excited motors, which needs to be compensated by their high performance and savings in operating costs. In design, it is necessary to make trade-offs based on performance and price comparisons according to specific usage scenarios and requirements, and to innovate structural processes and optimize design to reduce costs.

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