balanced three-phase system

简明释义

平衡三相制

英英释义

例句

1.A balanced three-phase system can reduce power losses in electrical transmission.

一个平衡三相系统可以减少电力传输中的损耗。

2.When troubleshooting, ensure that the voltages are equal in a balanced three-phase system.

在故障排除时，确保在平衡三相系统中电压是相等的。

3.To achieve optimal performance, it's crucial to maintain a balanced three-phase system in industrial applications.

在工业应用中，保持平衡三相系统至关重要，以实现最佳性能。

4.The efficiency of a balanced three-phase system is generally higher than that of a single-phase system.

一个平衡三相系统的效率通常高于单相系统。

5.In a balanced three-phase system, the loads are evenly distributed across all three phases.

在一个平衡三相系统中，负载均匀分布在所有三个相上。

作文

In the world of electrical engineering, one of the most crucial concepts to understand is the balanced three-phase system. This system is widely used in power generation and transmission due to its efficiency and reliability. A balanced three-phase system consists of three alternating currents that are equal in magnitude and phase difference of 120 degrees apart. This configuration ensures that the power supply is consistent and stable, which is essential for industrial and commercial applications.The significance of a balanced three-phase system lies in its ability to deliver power more efficiently than single-phase systems. In a single-phase system, the power delivery can be inconsistent, leading to fluctuations in voltage and current. However, in a balanced three-phase system, the load is shared equally among the three phases, resulting in a smooth and continuous power flow. This characteristic is particularly important in large motors and heavy machinery, where stable power is necessary to avoid damage and ensure optimal performance.Moreover, the design of a balanced three-phase system allows for smaller conductors compared to a single-phase system. Since the power is distributed across three phases, the current in each conductor is lower, which reduces the overall size and cost of the wiring needed. This reduction in conductor size also leads to decreased energy losses due to resistance, making the system even more efficient.Another advantage of a balanced three-phase system is its ability to provide a constant power output. In a balanced system, the sum of the instantaneous power across all three phases remains constant, which is not the case in an unbalanced system. This constant power output is crucial for sensitive equipment that requires stable voltage levels to operate correctly. For instance, data centers and hospitals rely heavily on balanced three-phase systems to ensure that their operations are not interrupted by power fluctuations.However, it is essential to maintain balance within the system. If one phase becomes overloaded or underloaded, it can lead to an unbalanced three-phase system, which can cause overheating, equipment failure, and inefficiencies. Engineers must carefully monitor the loads on each phase and make adjustments as necessary to maintain balance. This monitoring can involve the use of sensors and advanced control systems that can detect imbalances and redistribute loads accordingly.In conclusion, the balanced three-phase system plays a vital role in modern electrical engineering. Its efficiency, reliability, and ability to deliver constant power make it the preferred choice for many industrial applications. Understanding the principles behind a balanced three-phase system is essential for anyone working in the field of electrical engineering, as it lays the foundation for designing and maintaining effective power distribution systems. As technology continues to advance, the importance of balanced three-phase systems will only grow, making it an area of study worth pursuing for future engineers and technicians.

在电气工程的世界中，理解一个至关重要的概念是平衡三相系统。由于其高效性和可靠性，这个系统被广泛应用于发电和输电。平衡三相系统由三相交变电流组成，这三相电流在幅值上相等，且相位差为120度。这种配置确保了电力供应的一致性和稳定性，这对于工业和商业应用至关重要。平衡三相系统的重要性在于其比单相系统更高效地输送电力。在单相系统中，电力的输送可能会不稳定，导致电压和电流的波动。然而，在平衡三相系统中，负载均匀分配在三个相之间，从而实现平稳和连续的电力流动。这一特性在大型电动机和重型机械中尤为重要，因为稳定的电力对于避免损坏和确保最佳性能是必要的。此外，平衡三相系统的设计允许使用比单相系统更小的导体。由于电力分布在三个相之间，每个导体中的电流较低，这减少了所需电线的整体大小和成本。导体尺寸的减少也导致因电阻造成的能量损失下降，使系统更加高效。平衡三相系统的另一个优点是能够提供恒定的功率输出。在平衡系统中，所有三个相的瞬时功率总和保持恒定，而在不平衡系统中则不是这样。这种恒定的功率输出对于需要稳定电压水平才能正常运行的敏感设备至关重要。例如，数据中心和医院在很大程度上依赖于平衡三相系统来确保其操作不受电力波动的干扰。然而，维护系统的平衡至关重要。如果一个相过载或欠载，就会导致不平衡的三相系统，这可能导致过热、设备故障和效率降低。工程师必须仔细监测每个相的负载，并根据需要进行调整以保持平衡。此监测可以涉及使用传感器和先进的控制系统，这些系统可以检测不平衡并相应地重新分配负载。总之，平衡三相系统在现代电气工程中发挥着至关重要的作用。其高效性、可靠性以及提供恒定电力的能力使其成为许多工业应用的首选。理解平衡三相系统背后的原理对于任何从事电气工程工作的人来说都是必不可少的，因为它为设计和维护有效的电力分配系统奠定了基础。随着技术的不断进步，平衡三相系统的重要性只会增加，这使得这一研究领域值得未来的工程师和技术人员去追求。