three-phase alternating current

简明释义

三相交流电

英英释义

例句

1.The factory uses three-phase alternating current to power its heavy machinery.

工厂使用三相交流电为其重型机械供电。

2.Electric motors typically operate on three-phase alternating current for better performance.

电动机通常在三相交流电上运行，以获得更好的性能。

3.The new power plant generates three-phase alternating current to supply the grid.

新的发电厂产生三相交流电以供电网使用。

4.In electrical engineering, three-phase alternating current is preferred for its efficiency.

在电气工程中，三相交流电因其效率而受到青睐。

5.A transformer can convert single-phase power into three-phase alternating current.

变压器可以将单相电转换为三相交流电。

作文

The world we live in today is heavily reliant on electricity, and one of the most efficient methods of delivering this power is through a system known as three-phase alternating current. This technology has revolutionized the way we generate and distribute electrical energy, making it possible to power everything from our homes to large industrial machines. To fully appreciate the significance of three-phase alternating current, it is essential to understand its principles, advantages, and applications.First, let's break down what three-phase alternating current actually means. In simple terms, it refers to an electrical system that uses three separate currents, each offset by 120 degrees. This configuration allows for a more constant and reliable flow of electricity compared to single-phase systems, which can experience fluctuations and interruptions. The alternating current (AC) aspect indicates that the electrical current periodically reverses direction, which is a characteristic feature of AC systems.One of the primary advantages of using three-phase alternating current is its efficiency. When compared to single-phase systems, three-phase alternating current can transmit more power over long distances with less energy loss. This is particularly important for industries that require a significant amount of electricity to operate machinery and equipment. By utilizing three-phase alternating current, businesses can reduce their energy costs and improve overall productivity.Another significant benefit of three-phase alternating current is its ability to run large motors more efficiently. In industrial settings, electric motors are essential for driving various processes. Motors powered by three-phase alternating current tend to be smaller, lighter, and more efficient than those powered by single-phase systems. This not only saves space but also reduces the overall energy consumption of the machinery, leading to lower operational costs.Moreover, the use of three-phase alternating current contributes to improved power quality. Because the three currents are balanced, the system experiences fewer voltage fluctuations and disturbances. This stability is crucial for sensitive electronic equipment, which can be adversely affected by inconsistent power supply. By providing a more stable source of electricity, three-phase alternating current helps to protect valuable equipment and extends its lifespan.In addition to its advantages in industrial applications, three-phase alternating current is also widely used in residential settings. Many modern appliances, such as air conditioners and heat pumps, are designed to operate on three-phase alternating current. This allows homeowners to take advantage of the efficiency and reliability that this system offers, ultimately leading to lower energy bills and a reduced carbon footprint.In conclusion, three-phase alternating current plays a vital role in our modern electrical infrastructure. Its ability to deliver power efficiently, support large motors, and provide high-quality electricity makes it an essential component in both industrial and residential settings. As we continue to advance technologically and seek more sustainable energy solutions, understanding and utilizing three-phase alternating current will remain a key focus for engineers and energy providers alike. Embracing this technology will not only enhance our current systems but also pave the way for future innovations in the field of electrical engineering.

我们今天生活的世界在很大程度上依赖于电力，而传递这种电力的最有效方法之一就是通过一种称为三相交流电的系统。这项技术彻底改变了我们发电和分配电能的方式，使我们能够为从家庭到大型工业机器的一切提供动力。要充分理解三相交流电的重要性，必须了解其原理、优势和应用。首先，让我们拆解一下三相交流电的实际含义。简单来说，它指的是一种电气系统，使用三种独立的电流，每种电流之间相差120度。这种配置允许电力的流动更加稳定可靠，相比于单相系统，后者可能会经历波动和中断。交流电（AC）方面表明电流周期性地反向，这也是交流系统的一个特征。使用三相交流电的主要优势之一是其效率。与单相系统相比，三相交流电可以在长距离内以更少的能量损失传输更多的电力。这对于需要大量电力来操作机器和设备的行业尤其重要。通过利用三相交流电，企业可以降低能源成本，提高整体生产力。另一个重要的好处是三相交流电能够更有效地驱动大型电动机。在工业环境中，电动机对于驱动各种工艺至关重要。由三相交流电供电的电动机往往比单相系统供电的电动机更小、更轻且更高效。这不仅节省了空间，还减少了机械设备的整体能耗，从而降低了运营成本。此外，使用三相交流电有助于改善电力质量。由于三种电流是平衡的，系统经历的电压波动和干扰较少。这种稳定性对于敏感的电子设备至关重要，因为不稳定的电源可能会对其产生不利影响。通过提供更稳定的电力来源，三相交流电帮助保护贵重设备并延长其使用寿命。除了在工业应用中的优势外，三相交流电在住宅环境中也被广泛使用。许多现代电器，如空调和热泵，设计为在三相交流电上运行。这使得 homeowners 能够利用这一系统所提供的效率和可靠性，最终导致更低的电费和减少的碳足迹。总之，三相交流电在我们现代电气基础设施中发挥着至关重要的作用。它高效地提供电力、支持大型电动机并提供高质量电力的能力使其成为工业和住宅环境中不可或缺的组成部分。随着我们继续在技术上进步并寻求更可持续的能源解决方案，理解和利用三相交流电将始终是工程师和能源供应商关注的重点。接受这项技术不仅将增强我们当前的系统，还将为未来电气工程领域的创新铺平道路。