Motor Sets

What are the motor sets?

The motor sets, also known as the motor-generator sets, are the composites of power supply that are composed of a motor and a generator. The motor sets are applied when there is the requirement to convert the electric power into another form, in order to provide the connected applications with the kinetic power that drives the mechanisms to work.

From the perspective in the operation of the machine tools, the power supply does not directly participate in the machining processes, while the power supply is actually what is necessary for the machining processes. Since whether the machines can be successfully operated or not should be derived from the supplying of the sufficient power.

Nowadays, many manufacturers prefer using electrically driven machines rather than other media, such as hydraulic fluids or gases, based on the concerns of many issues related to the working environments. If the machines are driven by hydraulic fluids or gas, it is possible that the working environments are polluted with the oil or smoke, and thus brings harm to the machines as well as the operators.

In contrast, the machines that are driven by electricity own a variety of advantages more than the disadvantages they might have. In the direct aspect, there is no pollution from the oil or gas, which eliminates the need for large space for the media storage, and enables the operators to conveniently control the parameters of the power supply. Furthermore, compared to other types of media, the electricity offers the fastest and most stable power transmission, which thus improves the efficiency of the works accordingly.

However, whether the electricity is properly transmitted from the supply line to the applications determines the success or failure in receiving these advantages for the smoothness of the processes. Therefore, the motor sets are required, as they play the roles in the transmission of the electrical power. 


How do the motor sets work?

A motor-generator set consists of a motor and a generator that are coupled together with a shaft. The inlet of the electricity is on the motor side, and the outlet is set on the generator side.

The structure of this set indicates the principle of the transmission route of the electricity. In other words, the electricity is fed into the motor from the supply line through the inlet of the motor set. 

After that, the motor would convert the electric energy into the mechanical energy. The mechanical energy would then be transmitted to the generator through the shaft between the motor and the generator. 

Once the mechanical energy passes through the generator, the energy would be delivered out as the form of electrical power output and a cycle is finished. Simply put, this process of transmission is to allow the connected applications to receive the electrical power with phases of energy transmission.

The reason why the applications are not directly attached to the motor is to minimize the possibility of the malfunctioning of the machines, and maximize the effectiveness of power transmission. For instance, through the transmission that is separated with the motor and the generator, the voltage sags, surges, or spikes, which may damage the components of the applications, can be prevented from happening.


What to consider when choosing the right motor sets for the applications?

● Voltage
The motor and the generator can be presented as the forms of DC and AC. The DC stands for direct current, and the AC stands for the alternating current.
During the process of power transmission, the conversions in the voltage between the motor and the generators depending on the different circumstances are required, so that the aim of the motor sets can be successfully achieved.

The available conversions between the motor and the generator may be from DC to AC, from AC to DC, from one voltage level to another, or from fixed voltage to regulated voltage, etc.

 Frequency
The frequency of the power transmission is related to the torque and the speed of the motor sets, which are determined by the sizes and types of the motor and generator. In addition to the similar parameters, which are the sizes and types of the applications, the operation time and frequency of the applications are interrelated in the consideration of the choice between different forms of the motor sets.

When choosing the right motor sets for the compatible applications, whether the applications need high speed of power transmission in a short time, a long period of power transmission with continuous low speed, continuous low speed of power transmission in a short time, or continuous high speed for a long time of operation, are all determined by the required frequency that the chosen motor sets are able to fulfill.

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