breakdown voltage

简明释义

击穿电压

英英释义

例句

1.For this diode, the breakdown voltage should not exceed 50 volts to avoid damage.

对于这个二极管，击穿电压不应超过50伏特，以避免损坏。

2.The breakdown voltage of air is approximately 3 million volts per meter, which is why lightning occurs.

空气的击穿电压大约是每米300万伏特，这就是闪电发生的原因。

3.In high-voltage applications, knowing the breakdown voltage is crucial for preventing insulation failure.

在高压应用中，了解击穿电压对于防止绝缘失效至关重要。

4.When testing semiconductors, engineers measure the breakdown voltage to ensure reliability under stress.

在测试半导体时，工程师测量击穿电压以确保在压力下的可靠性。

5.The breakdown voltage of this capacitor is rated at 100 volts, which means it can safely operate below that level.

这个电容器的击穿电压额定为100伏特，这意味着它可以安全地在该水平以下工作。

作文

Understanding the concept of breakdown voltage is crucial in the field of electrical engineering and electronics. The term refers to the minimum voltage that causes a portion of an insulator to become electrically conductive. In simpler terms, it is the point at which an insulating material can no longer resist the flow of electric current, leading to a failure of the insulation. This phenomenon can occur in various materials, including gases, liquids, and solids, and it has significant implications for the design and safety of electrical systems.One of the most common contexts in which breakdown voltage is discussed is in relation to capacitors and diodes. For instance, when a capacitor is charged beyond its designed voltage limit, it can reach its breakdown voltage. At this point, the dielectric material within the capacitor may begin to conduct electricity, resulting in a short circuit or even an explosion. This is why engineers must carefully consider the breakdown voltage when selecting components for circuits, ensuring that they operate well within safe limits.Moreover, the breakdown voltage is not a fixed value; it can vary depending on several factors, including temperature, pressure, and the physical condition of the material. For example, as temperature increases, the breakdown voltage of certain materials may decrease, making them more susceptible to failure. This variability necessitates rigorous testing and quality assurance processes in manufacturing to guarantee that materials will perform reliably under different environmental conditions.In high-voltage applications, such as power transmission lines, understanding breakdown voltage becomes even more critical. Engineers must ensure that the insulation used can withstand the operational voltages without breaking down. If the insulation fails, it can lead to catastrophic failures, power outages, and even safety hazards for personnel working in the vicinity. Therefore, the selection of materials with appropriate breakdown voltage ratings is essential for the reliability and safety of electrical infrastructure.In addition to practical applications, the study of breakdown voltage also has theoretical implications in physics. Researchers investigate the mechanisms behind electrical breakdown to develop new materials and improve existing ones. For instance, understanding how and why certain materials break down under specific conditions can lead to innovations in insulating materials that have higher breakdown voltage thresholds, thus enhancing the efficiency and safety of electrical devices.In conclusion, the concept of breakdown voltage is fundamental in both theoretical and practical aspects of electrical engineering. It determines the limits of insulation materials and plays a pivotal role in the design and operation of electrical systems. By gaining a deeper understanding of breakdown voltage, engineers can make informed decisions that enhance the safety and reliability of electrical devices and infrastructure. As technology continues to evolve, ongoing research into breakdown voltage will undoubtedly lead to further advancements in the field, ultimately benefiting society as a whole.

理解击穿电压的概念在电气工程和电子学领域至关重要。这个术语指的是导致绝缘体的一部分变得导电的最小电压。简单来说，它是绝缘材料无法再抵抗电流流动的点，导致绝缘失效。这种现象可以发生在气体、液体和固体等各种材料中，并且对电气系统的设计和安全具有重要影响。在讨论击穿电压的最常见的上下文之一是与电容器和二极管相关。例如，当电容器被充电超过其设计电压限制时，它可能会达到其击穿电压。在这一点上，电容器内部的介质材料可能开始导电，导致短路甚至爆炸。这就是为什么工程师在选择电路组件时必须仔细考虑击穿电压，确保它们在安全范围内运行。此外，击穿电压并不是一个固定值；它可能因温度、压力和材料的物理状态等多个因素而变化。例如，随着温度的升高，某些材料的击穿电压可能会降低，使其更容易发生失效。这种可变性需要制造过程中严格的测试和质量保证流程，以确保材料在不同环境条件下能够可靠地工作。在高电压应用中，例如电力传输线路，理解击穿电压变得更加关键。工程师必须确保所使用的绝缘材料能够承受操作电压而不发生击穿。如果绝缘失效，可能会导致灾难性的故障、电力中断，甚至对在附近工作的人员造成安全隐患。因此，选择具有适当击穿电压等级的材料对于电气基础设施的可靠性和安全性至关重要。除了实际应用，研究击穿电压在物理学理论方面也有重要意义。研究人员调查电气击穿背后的机制，以开发新材料并改进现有材料。例如，了解某些材料在特定条件下为何以及如何发生击穿，可以导致具有更高击穿电压阈值的绝缘材料的创新，从而提高电气设备的效率和安全性。总之，击穿电压的概念在电气工程的理论和实践方面都是基础性的。它决定了绝缘材料的极限，并在电气系统的设计和运行中发挥着关键作用。通过深入理解击穿电压，工程师可以做出明智的决策，从而提高电气设备和基础设施的安全性和可靠性。随着技术的不断发展，对击穿电压的持续研究无疑将推动该领域的进一步进步，最终使整个社会受益。