three-phase circuit

简明释义

三相电路

英英释义

例句

1.When designing electrical systems, engineers often prefer a three-phase circuit for better load balancing.

在设计电气系统时，工程师通常更喜欢使用三相电路以实现更好的负载平衡。

2.The electrician explained how a three-phase circuit can reduce energy losses.

电工解释了三相电路如何减少能源损耗。

3.The factory upgraded its power supply to a three-phase circuit to improve efficiency.

工厂将其电源升级为三相电路以提高效率。

4.A three-phase circuit is commonly used in industrial applications for heavy machinery.

三相电路通常用于工业应用中的重型机械。

5.To run the new compressor, we need to install a three-phase circuit in the workshop.

为了运行新的压缩机，我们需要在车间安装一个三相电路。

作文

In the world of electrical engineering, efficiency and reliability are paramount. One of the most effective systems used in power distribution is the three-phase circuit. A three-phase circuit is a type of electrical circuit that uses three alternating currents, which are offset in phase by one-third of a cycle. This design allows for a more consistent and efficient delivery of electricity compared to single-phase systems.The primary advantage of a three-phase circuit is its ability to deliver more power without requiring larger conductors. In a single-phase system, power delivery fluctuates, leading to inefficiencies. However, with a three-phase circuit, the power supply remains constant, providing a steady flow of energy that is especially beneficial for industrial applications where large motors and heavy machinery are used.Moreover, the three-phase circuit allows for smaller and lighter wiring. Since the power is distributed across three phases, the current in each wire is lower than in a single-phase system. This results in reduced energy losses due to resistance and heat generation in the conductors. Additionally, the smaller size of the wires can lead to significant cost savings in materials and installation.Another important aspect of the three-phase circuit is its capability to balance loads. In industrial settings, machines often operate simultaneously, drawing varying amounts of power. A well-balanced three-phase circuit can distribute this load evenly across the three phases, minimizing the risk of overloads and potential failures. This balance not only enhances the lifespan of the equipment but also improves overall system reliability.Furthermore, the three-phase circuit facilitates the use of transformers and other electrical devices that require three-phase input. Many large motors are designed specifically for three-phase operation, allowing them to start more efficiently and run smoothly. The torque produced by a three-phase circuit motor is more consistent, resulting in better performance and less vibration compared to single-phase motors.In conclusion, the three-phase circuit is an essential component of modern electrical systems, particularly in industrial and commercial applications. Its ability to provide a steady and balanced power supply makes it superior to single-phase circuits. As industries continue to evolve and demand more efficient power solutions, understanding and utilizing the three-phase circuit will be crucial for engineers and technicians alike. Embracing this technology not only enhances operational efficiency but also contributes to the sustainability of energy resources in our increasingly electrified world.

在电气工程的世界中，效率和可靠性至关重要。电力分配中使用的最有效系统之一是三相电路。三相电路是一种电气电路，使用三种交流电流，这些电流在相位上相差三分之一周期。这种设计使得电力的传输更加稳定和高效，相较于单相系统。三相电路的主要优点是能够在不需要更大导体的情况下输送更多的电力。在单相系统中，电力传输波动，导致效率低下。然而，在三相电路中，电源保持恒定，提供稳定的能量流，这在工业应用中尤其有利，因为这些场合通常需要大功率电动机和重型机械。此外，三相电路允许使用更小、更轻的电缆。由于电力分布在三个相位上，每根电线中的电流低于单相系统。这导致由于电阻和导体中的热量产生而减少的能量损失。此外，电缆的尺寸减小可以在材料和安装上节省大量成本。三相电路的另一个重要方面是其平衡负载的能力。在工业环境中，机器通常同时运行，消耗不同数量的电力。良好平衡的三相电路可以将这个负载均匀地分配到三个相位上，从而最小化过载和潜在故障的风险。这种平衡不仅延长了设备的使用寿命，还提高了整个系统的可靠性。此外，三相电路还促进了变压器和其他需要三相输入的电气设备的使用。许多大型电动机专门设计用于三相操作，使它们能够更高效地启动并平稳运行。三相电路电动机产生的扭矩更为一致，导致性能更佳且震动更少，相较于单相电动机。总之，三相电路是现代电气系统的一个重要组成部分，特别是在工业和商业应用中。它提供稳定和平衡的电力供应，使其优于单相电路。随着工业的不断发展，对更高效电力解决方案的需求增加，理解和利用三相电路对工程师和技术人员来说将至关重要。采用这一技术不仅提高了操作效率，还有助于在日益电气化的世界中实现能源资源的可持续发展。