synchronous speed

简明释义

同步速度

英英释义

例句

1.The synchronous speed 同步速度 of a 60 Hz system with a 4-pole motor is 1800 RPM.

在一个60赫兹系统中，4极电动机的synchronous speed 同步速度为1800转/分钟。

2.If the rotor speed exceeds the synchronous speed 同步速度, the motor will lose its ability to generate torque.

如果转子速度超过synchronous speed 同步速度，电机将失去产生扭矩的能力。

3.To calculate the synchronous speed 同步速度, use the formula: Ns = 120f/P.

要计算synchronous speed 同步速度，可以使用公式：Ns = 120f/P。

4.The motor operates at a speed close to its synchronous speed 同步速度 when it is under full load.

当电机在满负荷下运行时，它的速度接近于其synchronous speed 同步速度。

5.In three-phase induction motors, the synchronous speed 同步速度 is determined by the frequency of the supply current.

在三相感应电动机中，synchronous speed 同步速度由供电电流的频率决定。

作文

In the realm of electrical engineering and machinery, the term synchronous speed refers to the speed at which the magnetic field rotates in an electric motor. This concept is crucial for understanding how motors operate efficiently. The synchronous speed is determined by the number of poles in the motor and the frequency of the supply current. Specifically, it can be calculated using the formula: synchronous speed (in RPM) = (120 × Frequency) / Number of Poles. This equation highlights the direct relationship between the electrical frequency and the mechanical speed of the motor. To better understand the importance of synchronous speed, consider an example involving a three-phase induction motor. In such a motor, the rotor needs to catch up with the rotating magnetic field created by the stator winding. If the rotor runs slower than the synchronous speed, it will not be able to generate enough torque, leading to inefficient performance or even stalling. Therefore, achieving and maintaining the synchronous speed is vital for optimal motor operation.Moreover, the concept of synchronous speed is not limited to electric motors. It also applies to generators and other rotating machinery where synchronization with the supply frequency is essential. For instance, in power generation, turbines must operate at their synchronous speed to ensure that the generated electricity matches the grid frequency, which is typically 50 or 60 Hz, depending on the region. Any deviation from this speed can lead to frequency instability in the power system, which can cause widespread outages or damage to equipment.Understanding synchronous speed also plays a significant role in the design and selection of electric motors for various applications. Engineers must consider the required speed and torque characteristics of the application when selecting a motor. For instance, in applications requiring high precision, such as robotics, motors must operate very close to their synchronous speed to maintain accuracy. Conversely, in applications where variable speed is acceptable, such as in fans or pumps, different types of motors may be used depending on their operational requirements.In conclusion, the term synchronous speed is fundamental in the field of electrical engineering. It represents the speed at which the magnetic field in an electric motor rotates, and it is crucial for the efficient operation of motors and generators. Understanding this concept allows engineers to design better systems, select appropriate motors for specific applications, and ensure stable operation in electrical grids. As technology continues to advance, the importance of mastering concepts like synchronous speed will only grow, as they are integral to the development of more efficient and reliable electrical machines and systems.

在电气工程和机械领域，术语同步速度指的是电动机中磁场旋转的速度。这个概念对于理解电动机如何高效运行至关重要。同步速度由电动机中的极数和供电电流的频率决定。具体来说，它可以通过以下公式计算：同步速度（以RPM为单位）=（120×频率）/极数。这个方程突出了电气频率与电动机机械速度之间的直接关系。为了更好地理解同步速度的重要性，考虑一个涉及三相感应电动机的例子。在这种电动机中，转子需要追赶由定子绕组产生的旋转磁场。如果转子的转速低于同步速度，它将无法产生足够的扭矩，导致效率低下甚至停转。因此，实现和维持同步速度对电动机的最佳运行至关重要。此外，同步速度的概念并不限于电动机。它同样适用于发电机和其他旋转机械，在这些机械中，与供电频率的同步也是必不可少的。例如，在发电中，涡轮机必须以其同步速度运行，以确保所产生的电力与电网频率匹配，这通常取决于区域，通常为50或60Hz。任何偏离这一速度的情况都可能导致电力系统频率不稳定，从而导致大规模停电或设备损坏。理解同步速度在电动机的各种应用设计和选择中也发挥着重要作用。工程师在选择电动机时，必须考虑应用所需的速度和扭矩特性。例如，在需要高精度的应用中，如机器人，电动机必须非常接近其同步速度才能保持准确性。相反，在允许变速的应用中，例如风扇或泵，可以根据其操作要求使用不同类型的电动机。总之，术语同步速度在电气工程领域是基础性的。它表示电动机中磁场旋转的速度，对电动机和发电机的高效运行至关重要。理解这一概念使工程师能够设计更好的系统，为特定应用选择合适的电动机，并确保电网的稳定运行。随着技术的不断进步，掌握像同步速度这样的概念的重要性只会增加，因为它们是开发更高效、更可靠的电气机器和系统的关键。