polyphase generator

简明释义

多相发电机

英英释义

例句

1.Using a polyphase generator can significantly reduce the power losses in transmission lines.

使用多相发电机可以显著减少输电线路中的能量损失。

2.The technician explained how a polyphase generator works during the maintenance session.

技术员在维护会议上解释了多相发电机的工作原理。

3.A polyphase generator produces multiple alternating currents that are out of phase with each other.

多相发电机产生多个相位不同的交流电流。

4.The factory installed a new polyphase generator to improve its energy efficiency.

工厂安装了一台新的多相发电机以提高能源效率。

5.In renewable energy systems, a polyphase generator is often used for wind turbines.

在可再生能源系统中，多相发电机通常用于风力涡轮机。

作文

The advancement of electrical engineering has led to the development of various types of generators, one of which is the polyphase generator. A polyphase generator is a type of electrical generator that produces multiple alternating currents (AC) that are out of phase with each other. This technology is primarily used in industrial applications where high efficiency and power output are required. The most common form of a polyphase generator is the three-phase generator, which generates three separate AC voltages that are 120 degrees apart in their phase angles.The principle behind a polyphase generator is based on the concept of rotating magnetic fields. When a conductor moves through a magnetic field, it induces an electromotive force (EMF). In a three-phase system, three sets of coils are arranged around a rotor. As the rotor spins, it creates a rotating magnetic field that induces current in each coil. This results in three separate currents that can be harnessed for power.One of the primary advantages of using a polyphase generator is its ability to deliver a constant power output. Unlike single-phase systems, which can experience fluctuations in power delivery, a three-phase system provides a more stable and continuous flow of electricity. This stability is crucial for industrial machines that require consistent power to operate effectively.Furthermore, a polyphase generator is more efficient than its single-phase counterpart. The use of multiple phases allows for a reduction in the amount of conductor material needed, as well as a decrease in energy losses during transmission. This efficiency translates into cost savings for businesses that rely on large amounts of electrical power.In addition to efficiency and stability, polyphase generators also facilitate the use of smaller and lighter motors. Since three-phase motors can produce more torque than single-phase motors, they can be designed to be more compact while still delivering the same power output. This is particularly beneficial in applications where space is limited, such as in manufacturing facilities or commercial buildings.However, there are challenges associated with polyphase generators. The complexity of the system requires careful design and installation to ensure that the phases are balanced. If one phase carries significantly more load than the others, it can lead to overheating and potential damage to the generator and connected equipment. Therefore, regular maintenance and monitoring are essential to maintain the system's performance and longevity.In conclusion, the polyphase generator represents a significant advancement in electrical generation technology. Its ability to produce multiple phases of electricity offers numerous benefits, including enhanced efficiency, stability, and reduced size of motors. As industries continue to evolve and demand more reliable power sources, the importance of polyphase generators will only grow. Understanding this technology is essential for anyone involved in electrical engineering or related fields, as it plays a crucial role in powering modern society.

电气工程的进步导致了各种类型发电机的发展，其中一种是多相发电机。多相发电机是一种产生多个交变电流（AC）的电气发电机，这些电流彼此相位不同。这项技术主要用于工业应用中，要求高效率和高功率输出。最常见的形式是三相发电机，它生成三个独立的交流电压，相位角相差120度。多相发电机的原理基于旋转磁场的概念。当导体在磁场中移动时，会感应出电动势（EMF）。在三相系统中，三组线圈围绕转子排列。当转子旋转时，它创建一个旋转磁场，在每个线圈中感应电流。这导致可以利用的三个独立电流的产生。使用多相发电机的主要优点之一是其能够提供恒定的功率输出。与单相系统不同，单相系统可能会经历功率传递的波动，而三相系统提供更稳定和连续的电流流动。这种稳定性对需要一致电力以有效运行的工业机器至关重要。此外，多相发电机比单相发电机更高效。多个相的使用减少了所需导体材料的数量，并且在传输过程中降低了能量损失。这种效率为依赖大量电力的企业带来了成本节约。除了效率和稳定性外，多相发电机还促进了更小更轻的电动机的使用。由于三相电动机可以产生比单相电动机更多的扭矩，因此它们可以设计得更紧凑，同时仍然提供相同的功率输出。这在空间有限的应用中尤其有利，例如制造设施或商业建筑。然而，多相发电机也面临着挑战。系统的复杂性需要仔细的设计和安装，以确保相位平衡。如果一个相承载的负载远远超过其他相，可能会导致过热和潜在的发电机及连接设备的损坏。因此，定期维护和监控对于维持系统的性能和寿命至关重要。总之，多相发电机代表了电气发电技术的重要进步。它产生多个电相的能力提供了众多好处，包括提高效率、稳定性以及减小电动机尺寸。随着工业的不断发展和对更可靠电源的需求，多相发电机的重要性只会增加。理解这项技术对于任何参与电气工程或相关领域的人来说都是至关重要的，因为它在现代社会的供电中发挥着关键作用。