electrical breakdown

简明释义

电网失电

英英释义

例句

1.During the storm, several devices experienced electrical breakdown due to lightning strikes.

在暴风雨期间，由于闪电袭击，几个设备经历了电气击穿。

2.The research focused on preventing electrical breakdown in high-voltage cables.

研究集中在防止高压电缆中的电气击穿。

3.High voltage can lead to electrical breakdown in insulators, resulting in power outages.

高电压可能导致绝缘体发生电气击穿，从而导致停电。

4.The technician explained that the electrical breakdown in the transformer was caused by overheating.

技术员解释说，变压器中的电气击穿是由于过热引起的。

5.The capacitor failed due to an electrical breakdown, causing the circuit to short-circuit.

由于发生了电气击穿，电容器失效，导致电路短路。

作文

The phenomenon of electrical breakdown occurs when an insulating material becomes conductive due to the application of a high voltage. This can happen in various contexts, such as in electrical circuits, power lines, and even in the atmosphere during thunderstorms. Understanding electrical breakdown is crucial for engineers and scientists alike, as it can lead to failures in electrical systems and pose safety risks. To begin with, let’s explore what happens during electrical breakdown. When an electric field applied across an insulator exceeds a certain threshold, the insulator can no longer resist the flow of electric current. This results in a sudden surge of electricity that can cause damage to the surrounding components. For instance, in a power transformer, if the insulation fails due to electrical breakdown, it can lead to short circuits and even fires. There are several factors that contribute to electrical breakdown. One of the most significant is the material’s dielectric strength, which is its ability to withstand electric fields without conducting electricity. Different materials have varying dielectric strengths, and knowing these properties helps in selecting suitable insulation for electrical applications. Additionally, environmental conditions such as temperature, humidity, and pressure can also influence the likelihood of electrical breakdown. For example, high humidity can reduce the effectiveness of insulation, making it more susceptible to breakdown. Another important aspect of electrical breakdown is its occurrence in gases. In the case of gases, electrical breakdown can lead to phenomena such as lightning. During a thunderstorm, the buildup of static electricity can create a strong electric field between clouds and the ground. Once this field surpasses the breakdown voltage of air, a rapid discharge of electricity occurs in the form of lightning. This natural example highlights the power and unpredictability of electrical breakdown. Preventing electrical breakdown is essential in electrical engineering. Engineers employ various strategies to ensure that systems operate safely and effectively. One common method is to design circuits with appropriate safety margins, ensuring that the voltage levels remain within safe limits. Furthermore, regular maintenance and inspections of electrical systems can help identify potential issues before they lead to electrical breakdown. In conclusion, electrical breakdown is a critical concept in understanding electrical systems. It involves the transition of an insulating material to a conductive state under high voltage conditions. By studying the factors that contribute to this phenomenon, engineers can design safer and more reliable electrical systems. Awareness of electrical breakdown not only aids in preventing equipment failure but also enhances overall safety in electrical applications. As technology continues to advance, the importance of understanding electrical breakdown will remain paramount for future innovations in the field of electrical engineering.

电气击穿现象发生在绝缘材料由于施加高电压而变得导电时。这种情况可以在各种上下文中发生，例如电路、电力线路，甚至在雷暴期间的气氛中。理解电气击穿对工程师和科学家来说至关重要，因为它可能导致电气系统的故障并带来安全风险。首先，让我们探讨一下电气击穿期间发生的事情。当施加在绝缘体上的电场超过某个阈值时，绝缘体将无法再抵抗电流的流动。这会导致电流的突然激增，可能会对周围组件造成损害。例如，在电力变压器中，如果由于电气击穿而导致绝缘失效，可能会导致短路甚至火灾。导致电气击穿的因素有很多。其中最重要的是材料的介电强度，即其在不导电的情况下承受电场的能力。不同材料具有不同的介电强度，了解这些特性有助于选择适合电气应用的绝缘材料。此外，温度、湿度和压力等环境条件也会影响电气击穿的可能性。例如，高湿度可能会降低绝缘的有效性，使其更容易发生击穿。电气击穿的另一个重要方面是其在气体中的发生。在气体的情况下，电气击穿可能导致诸如闪电等现象。在雷暴期间，静电的积累可以在云层与地面之间产生强电场。一旦这个电场超过空气的击穿电压，就会以闪电的形式迅速放电。这一自然现象突显了电气击穿的力量和不可预测性。防止电气击穿在电气工程中至关重要。工程师采用各种策略以确保系统安全有效地运行。一种常见的方法是设计具有适当安全裕度的电路，确保电压水平保持在安全范围内。此外，定期维护和检查电气系统可以帮助在问题导致电气击穿之前识别潜在问题。总之，电气击穿是理解电气系统的关键概念。它涉及到绝缘材料在高电压条件下转变为导电状态。通过研究导致这一现象的因素，工程师可以设计出更安全、更可靠的电气系统。意识到电气击穿不仅有助于防止设备故障，还增强了电气应用的整体安全性。随着技术的不断进步，理解电气击穿的重要性将继续成为电气工程领域未来创新的重中之重。