a.c. voltage

简明释义

交流电压

英英释义

例句

1.The transformer steps down the a.c. voltage from high to low for safe usage.

变压器将a.c. voltage（交流电压）从高压降到低压以便安全使用。

2.The electrical engineer measured the a.c. voltage to ensure it was within safe limits.

电气工程师测量了a.c. voltage（交流电压），以确保其在安全范围内。

3.When troubleshooting electrical devices, checking the a.c. voltage is often the first step.

在排查电器故障时，检查a.c. voltage（交流电压）通常是第一步。

4.In residential wiring, the standard a.c. voltage is typically 120 volts or 240 volts.

在住宅布线中，标准的a.c. voltage（交流电压）通常为120伏或240伏。

5.An oscilloscope can be used to visualize the waveform of the a.c. voltage in a circuit.

示波器可以用来可视化电路中a.c. voltage（交流电压）的波形。

作文

Understanding the concept of a.c. voltage is essential in the field of electrical engineering and everyday applications. a.c. voltage stands for alternating current voltage, which is a type of electrical voltage that changes direction periodically. This is in contrast to direct current (d.c.) voltage, where the flow of electricity remains constant in one direction. The significance of a.c. voltage lies in its widespread use in powering homes, industries, and various electronic devices. One of the primary reasons for the prevalence of a.c. voltage is its efficiency in transmitting electricity over long distances. When electricity is generated at power plants, it is typically produced as a.c. voltage. This allows for the use of transformers, which can step up the voltage for transmission and then step it down for safe use in homes and businesses. This process minimizes energy loss during transmission, making a.c. voltage a practical choice for our electrical grid.In terms of its characteristics, a.c. voltage is represented mathematically by sine waves. These waves illustrate the cyclical nature of the voltage, with peaks and troughs representing the maximum and minimum values of the voltage, respectively. The frequency of this cycle, measured in hertz (Hz), indicates how many times the voltage alternates per second. For instance, in many countries, the standard frequency for a.c. voltage is 50 Hz or 60 Hz, depending on regional standards. The ability to convert a.c. voltage into d.c. voltage is another important aspect of modern electronics. Many devices, such as computers and smartphones, operate on d.c. voltage, which necessitates the use of rectifiers to transform a.c. voltage into a usable form. This conversion process highlights the versatility of a.c. voltage and its ability to serve as a foundation for various technological advancements.Moreover, understanding a.c. voltage also involves awareness of safety precautions. Working with a.c. voltage can be hazardous due to its potential to cause electric shocks. Proper insulation, circuit breakers, and safety gear are crucial when dealing with electrical systems that utilize a.c. voltage. Education about these safety measures is vital for anyone involved in electrical work, ensuring that they can handle a.c. voltage safely and effectively.In conclusion, a.c. voltage plays a critical role in our daily lives and technological infrastructure. Its efficiency in transmission, ability to be converted into other forms of electricity, and the need for safety awareness make it a fundamental topic in electrical engineering. As we continue to innovate and develop new technologies, understanding a.c. voltage will remain important for both professionals and consumers alike. By grasping the principles surrounding a.c. voltage, we can appreciate the complexities of the electrical systems that power our world and ensure their safe and effective use.

理解a.c. voltage的概念对于电气工程领域和日常应用至关重要。a.c. voltage代表交流电压，这是一种电压类型，电流周期性地改变方向。这与直流电（d.c.）电压形成对比，后者的电流始终保持在一个方向上。a.c. voltage的重要性在于它被广泛应用于为家庭、工业和各种电子设备供电。a.c. voltage普遍存在的主要原因之一是其在长距离传输电力方面的高效性。当电力在发电厂产生时，通常以a.c. voltage的形式生成。这允许使用变压器，可以将电压升高以进行传输，然后再降低到安全水平供家庭和企业使用。这个过程最小化了传输过程中的能量损失，使a.c. voltage成为我们电网的实用选择。在特性方面，a.c. voltage在数学上由正弦波表示。这些波形展示了电压的周期性特征，峰值和谷值分别代表电压的最大和最小值。这个周期的频率，以赫兹（Hz）为单位，表示电压每秒钟的变化次数。例如，在许多国家，a.c. voltage的标准频率是50 Hz或60 Hz，具体取决于地区标准。将a.c. voltage转换为直流电压也是现代电子学中的一个重要方面。许多设备，如计算机和智能手机，依赖于直流电压，这就需要使用整流器将a.c. voltage转化为可用形式。这一转换过程突显了a.c. voltage的多样性及其作为各种技术进步基础的能力。此外，了解a.c. voltage还需要意识到安全预防措施。处理a.c. voltage可能会带来危险，因为它有可能导致电击。在处理利用a.c. voltage的电气系统时，适当的绝缘、断路器和安全装备至关重要。教育关于这些安全措施对于任何参与电气工作的人来说都是必不可少的，确保他们能够安全有效地处理a.c. voltage。总之，a.c. voltage在我们的日常生活和技术基础设施中扮演着关键角色。其在传输中的效率、转换为其他电力形式的能力以及对安全意识的需求使其成为电气工程中的基本主题。随着我们继续创新和开发新技术，理解a.c. voltage将对专业人士和消费者同样重要。通过掌握围绕a.c. voltage的原则，我们可以欣赏到为我们世界供电的电气系统的复杂性，并确保其安全有效的使用。