synchronous speed

简明释义

同步速度

英英释义

例句

1.The motor operates at its synchronous speed, which is defined as the speed of the rotating magnetic field.

电机以其同步速度运转，同步速度被定义为旋转磁场的速度。

2.If the load increases too much, the motor may fall below its synchronous speed and stall.

如果负载增加过多，电动机可能会低于其同步速度而发生停转。

3.In synchronous motors, the rotor rotates at exactly synchronous speed, allowing for precise control.

在同步电动机中，转子以精确的同步速度旋转，从而实现精确控制。

4.To achieve optimal efficiency, a three-phase motor should run close to its synchronous speed.

为了达到最佳效率，三相电动机应接近其同步速度运行。

5.The synchronous speed of an induction motor can be calculated using the formula: 120 times the frequency divided by the number of poles.

感应电动机的同步速度可以通过以下公式计算：120乘以频率除以极数。

作文

In the realm of electrical engineering, understanding the concept of synchronous speed is crucial for the design and operation of alternating current (AC) motors. The term synchronous speed refers to the speed at which the magnetic field rotates in a synchronous motor. This speed is determined by the frequency of the AC supply and the number of poles in the motor. Mathematically, synchronous speed can be expressed using the formula: Synchronous Speed (N_s) = (120 × Frequency) / Number of Poles.This formula illustrates how the rotational speed of the magnetic field is directly related to the frequency of the electrical supply. For instance, if an AC supply operates at a frequency of 60 Hz and the motor has four poles, the synchronous speed would be calculated as follows:N_s = (120 × 60) / 4 = 1800 RPM (Revolutions Per Minute).This means that the magnetic field in the motor rotates at 1800 RPM. It is important to note that the actual speed of the rotor in a synchronous motor will match this synchronous speed only when the motor is operating under ideal conditions without any load. When considering the performance of AC motors, one must also take into account the concept of slip. Slip is the difference between the synchronous speed and the actual speed of the rotor. In practical applications, most induction motors operate below their synchronous speed, creating a slip that allows them to produce torque. The amount of slip varies depending on the load applied to the motor. Understanding synchronous speed is not only important for engineers but also for anyone involved in the maintenance and operation of electric motors. For example, if a technician knows the synchronous speed of a motor, they can diagnose issues related to motor performance, such as excessive heat or vibrations. These symptoms often indicate that the motor is not operating efficiently, possibly due to mechanical issues or electrical imbalances. Moreover, the synchronous speed plays a significant role in the efficiency of power generation systems. In power plants, synchronous generators are utilized to convert mechanical energy into electrical energy. The synchronous speed of these generators must be carefully controlled to ensure stable and efficient electricity production. Any deviation from the synchronous speed can lead to power quality issues, affecting the entire electrical grid. In conclusion, the concept of synchronous speed is fundamental in the field of electrical engineering, particularly in the context of AC motors and generators. A thorough understanding of this concept enables engineers and technicians to optimize motor performance, diagnose faults, and ensure the efficient operation of power systems. As technology continues to advance, the implications of synchronous speed will remain relevant, highlighting the importance of continuous learning in this dynamic field.

在电气工程领域，理解synchronous speed（同步速度）的概念对于交流电动机的设计和操作至关重要。synchronous speed指的是在同步电动机中磁场旋转的速度。这个速度由交流电源的频率和电动机的极数决定。从数学上讲，synchronous speed可以用以下公式表示：同步速度（N_s）=（120 × 频率）/ 极数。这个公式说明了磁场的旋转速度与电源频率之间的直接关系。例如，如果交流电源的频率为60赫兹，电动机有四个极，则synchronous speed的计算如下：N_s =（120 × 60）/ 4 = 1800转/分钟（RPM）。这意味着电动机中的磁场以1800 RPM的速度旋转。需要注意的是，只有在理想条件下没有负载时，同步电动机的转子实际速度才会与此synchronous speed相匹配。在考虑交流电动机的性能时，还必须考虑滑差的概念。滑差是同步速度与转子的实际速度之间的差异。在实际应用中，大多数感应电动机的运行速度低于它们的synchronous speed，产生的滑差使它们能够产生扭矩。滑差的大小取决于施加在电动机上的负载。理解synchronous speed不仅对工程师重要，对任何参与电动机维护和操作的人也同样重要。例如，如果一名技术员知道电动机的synchronous speed，他们可以诊断与电动机性能相关的问题，例如过热或振动。这些症状通常表明电动机的运行效率不高，可能是由于机械问题或电气不平衡造成的。此外，synchronous speed在发电系统的效率中也起着重要作用。在发电厂中，使用同步发电机将机械能转化为电能。这些发电机的synchronous speed必须被仔细控制，以确保稳定和高效的电力生产。任何偏离synchronous speed的情况都可能导致电力质量问题，影响整个电网。总之，synchronous speed的概念在电气工程领域是基础性的，特别是在交流电动机和发电机的背景下。对这一概念的透彻理解使工程师和技术人员能够优化电动机性能、诊断故障并确保电力系统的高效运行。随着技术的不断进步，synchronous speed的影响将继续存在，突显出在这个动态领域中持续学习的重要性。