apparent power

简明释义

1. 视在功率; 2. 表观功率;

英英释义

例句

1.The generator's apparent power is measured in volt-amperes (VA), which indicates its total capacity.

发电机的视在功率以伏安（VA）为单位测量，表示其总容量。

2.To ensure efficiency, we must consider both real and apparent power in our electrical systems.

为了确保效率，我们必须在电气系统中考虑实际功率和视在功率。

3.The apparent power of the circuit is higher than the actual power consumed due to reactive components.

由于存在无功元件，电路的视在功率高于实际消耗的功率。

4.When designing a transformer, engineers must account for the apparent power to avoid overheating.

在设计变压器时，工程师必须考虑视在功率以避免过热。

5.The formula for calculating apparent power is S = V × I, where S is the apparent power.

计算视在功率的公式是 S = V × I，其中 S 是视在功率。

作文

In the realm of electrical engineering, the concept of apparent power plays a crucial role in understanding how electrical systems function. Apparent power is defined as the product of the current and voltage in an AC (alternating current) circuit, measured in volt-amperes (VA). This measure is essential because it encompasses both the real power, which performs actual work, and the reactive power, which oscillates between the source and load without performing any useful work. The relationship between these types of power can be represented by the equation: apparent power (S) = √(P² + Q²), where P is the real power in watts, and Q is the reactive power in volt-amperes reactive (VAR). Understanding apparent power is vital for engineers and technicians who design and maintain electrical systems. It helps them to ensure that systems operate efficiently and safely. For instance, if an electrical system has a high apparent power, it indicates that a significant amount of current is flowing through the system, which could lead to overheating or failure of components if not managed correctly. Therefore, calculating apparent power allows engineers to select appropriate equipment and materials that can handle the expected loads.Moreover, apparent power is significant in determining the power factor, which is a measure of how effectively electrical power is being converted into useful work output. The power factor is the ratio of real power to apparent power, expressed as PF = P/S. A power factor close to 1 indicates efficient utilization of electrical power, while a lower power factor suggests inefficiencies, which can result in higher energy costs and potential penalties from utility companies. Thus, understanding and optimizing apparent power is not only a technical necessity but also an economic consideration for businesses and industries.In practical applications, the implications of apparent power extend beyond mere calculations. For example, in large industrial settings, managing apparent power effectively can lead to significant cost savings. By improving the power factor and minimizing reactive power, companies can reduce their electricity bills and avoid extra charges imposed by power suppliers. Furthermore, optimizing apparent power can enhance the overall reliability and lifespan of electrical equipment, as it reduces strain on the system.In conclusion, the concept of apparent power is fundamental in the field of electrical engineering. It provides essential insights into the performance and efficiency of electrical systems. By understanding apparent power, engineers can design better systems, optimize energy usage, and ensure safety and reliability. As we continue to advance technologically and rely more on electrical systems, the importance of mastering concepts like apparent power will only grow. The future of energy management and electrical engineering hinges on our ability to understand and manipulate these essential principles effectively.

在电气工程领域，表观功率的概念在理解电气系统的功能方面起着至关重要的作用。表观功率被定义为交流（AC）电路中电流与电压的乘积，以伏安（VA）为单位进行测量。这个度量是必不可少的，因为它包含了实际功率，即执行实际工作的功率，以及反应功率，即在源和负载之间振荡而不执行任何有用工作的功率。这两种功率之间的关系可以通过方程表示：表观功率（S）= √（P² + Q²），其中P是以瓦特为单位的实际功率，而Q是以伏安反应（VAR）为单位的反应功率。理解表观功率对于设计和维护电气系统的工程师和技术人员至关重要。它帮助他们确保系统高效、安全地运行。例如，如果一个电气系统具有高表观功率，这表明大量电流正在流过系统，如果不加以管理，可能导致组件过热或故障。因此，计算表观功率使工程师能够选择适当的设备和材料，以处理预期负载。此外，表观功率在确定功率因数方面也具有重要意义，功率因数是电能有效转换为有用工作输出的度量。功率因数是实际功率与表观功率的比率，表示为PF = P/S。接近1的功率因数表示电力的有效利用，而较低的功率因数则表明效率低下，这可能导致更高的能源成本以及公用事业公司可能施加的罚款。因此，理解和优化表观功率不仅是技术上的必要性，也是企业和行业的经济考虑。在实际应用中，表观功率的影响超出了简单的计算。例如，在大型工业环境中，有效管理表观功率可以带来显著的成本节约。通过提高功率因数并最小化反应功率，公司可以减少电费并避免电力供应商施加的额外费用。此外，优化表观功率可以增强电气设备的整体可靠性和使用寿命，因为它减少了对系统的压力。总之，表观功率的概念在电气工程领域是基础。它提供了对电气系统性能和效率的重要见解。通过理解表观功率，工程师可以设计更好的系统，优化能源使用，并确保安全和可靠性。随着我们继续在技术上进步并越来越依赖电气系统，掌握像表观功率这样的概念的重要性只会增加。能源管理和电气工程的未来取决于我们有效理解和操作这些基本原则的能力。