earthed neutral

简明释义

接地中线接地中点

英英释义

例句

1.During the inspection, we checked if the earthed neutral was properly connected.

在检查过程中，我们检查了接地中性线是否正确连接。

2.The transformer was designed with an earthed neutral to prevent electrical shocks.

该变压器设计有接地中性线以防止电击。

3.An earthed neutral system can reduce the risk of overvoltages in power lines.

一个接地中性线系统可以减少电力线路中过电压的风险。

4.Our technician explained how an earthed neutral helps in fault protection.

我们的技术人员解释了接地中性线如何帮助故障保护。

5.In electrical installations, the use of an earthed neutral is crucial for safety.

在电气安装中，使用接地中性线对于安全至关重要。

作文

In the world of electrical engineering, the term earthed neutral plays a crucial role in ensuring safety and efficiency in power distribution systems. The concept refers to a method where the neutral point of a transformer or generator is connected to the ground (earth) to provide a reference point for the electrical system. This connection helps to stabilize the voltage levels and protects the system from overvoltages caused by lightning strikes or equipment failures. earthed neutral systems are commonly used in residential and industrial settings, providing a reliable way to manage electrical loads and prevent hazards.The significance of an earthed neutral system cannot be overstated. By grounding the neutral point, it ensures that any fault currents are directed safely to the ground, minimizing the risk of electric shock to individuals and damage to equipment. In the absence of this grounding, fault currents could flow through unintended paths, posing severe risks to both human life and property. For instance, if a live wire comes into contact with a metal casing of an appliance without an earthed neutral, anyone touching that appliance could become a path for the current, leading to potentially fatal consequences.Moreover, the earthed neutral configuration also aids in the operation of circuit protection devices such as fuses and circuit breakers. These devices rely on the presence of a stable reference point to function correctly. When a fault occurs, the earthed neutral allows these protective devices to detect anomalies in the electrical flow and disconnect the power supply, thus preventing further damage. This is particularly important in industrial environments where large machinery operates, as the potential for faults is significantly higher.In addition to safety benefits, earthed neutral systems can improve the overall efficiency of power distribution. By maintaining a balanced load across the three phases of a three-phase system, the grounding of the neutral can help reduce losses due to unbalanced loads. This is essential for optimizing energy consumption and ensuring that electrical systems operate within their designed parameters.However, implementing an earthed neutral system requires careful planning and adherence to safety standards. Engineers must consider various factors such as soil resistivity, the depth of grounding electrodes, and the potential for corrosion over time. Proper installation and maintenance are critical to ensure that the grounding remains effective throughout the lifespan of the electrical system.In conclusion, the concept of earthed neutral is fundamental in electrical engineering, providing both safety and efficiency in power distribution systems. Its ability to direct fault currents safely to the ground protects individuals and equipment alike, while also enhancing the performance of electrical systems. As technology advances and our reliance on electricity increases, understanding and implementing earthed neutral systems will remain vital for engineers and technicians alike. It is a prime example of how foundational concepts in engineering can have profound implications on safety and functionality in our daily lives.

在电气工程领域，术语接地中性在确保电力分配系统的安全性和效率方面发挥着至关重要的作用。该概念是指将变压器或发电机的中性点连接到地面（接地），以为电气系统提供参考点。这种连接有助于稳定电压水平，并保护系统免受雷击或设备故障引起的过电压影响。接地中性系统通常用于住宅和工业环境，为管理电气负载和防止危险提供可靠的方法。接地中性系统的重要性不容小觑。通过接地中性点，它确保任何故障电流安全地引导到地面，从而最小化对人身和设备的电击风险。如果没有这种接地，故障电流可能会通过意外路径流动，给人身和财产带来严重风险。例如，如果一根带电线与电器的金属外壳接触而没有接地中性，那么任何触摸该电器的人都可能成为电流的通路，导致潜在的致命后果。此外，接地中性配置还可以帮助电路保护装置（如保险丝和断路器）正常工作。这些设备依赖于稳定的参考点才能正确运行。当发生故障时，接地中性使得这些保护装置能够检测电流流动中的异常情况并断开电源，从而防止进一步损坏。这在工业环境中尤其重要，因为大型机械的操作故障可能性显著较高。除了安全益处，接地中性系统还可以提高电力分配的整体效率。通过在三相系统的三个相之间保持平衡负载，接地中性可以帮助减少由于负载不平衡而造成的损失。这对于优化能量消耗并确保电气系统在其设计参数内运行至关重要。然而，实施接地中性系统需要仔细的规划和遵循安全标准。工程师必须考虑各种因素，如土壤电阻率、接地电极的深度以及随时间推移可能出现的腐蚀。适当的安装和维护对于确保接地在电气系统的整个生命周期内保持有效至关重要。总之，接地中性的概念在电气工程中是基础，提供了电力分配系统的安全性和效率。它能够安全地将故障电流引导到地面，保护个人和设备，同时增强电气系统的性能。随着技术的进步和我们对电力的依赖增加，理解和实施接地中性系统将对工程师和技术人员至关重要。这是工程学中基础概念如何对我们日常生活的安全性和功能性产生深远影响的一个典范。