apparent watt

简明释义

视在瓦特

英英释义

Apparent watt is a unit of measurement for electrical power that combines both real power (measured in watts) and reactive power (measured in volt-amperes reactive, or VAR). It is represented as the product of the root mean square (RMS) voltage and RMS current in an AC circuit, without considering the phase difference between them.

视在瓦特是电力的一个测量单位,它结合了实际功率(以瓦特为单位)和无功功率(以无功伏安为单位)。它表示为交流电路中有效电压和有效电流的乘积,而不考虑它们之间的相位差。

例句

1.The generator provides a maximum output of 500 apparent watt (视在瓦特), which is sufficient for our needs.

该发电机的最大输出为500 apparent watt (视在瓦特),这足以满足我们的需求。

2.The power meter displayed a reading of 1500 apparent watt (视在瓦特), indicating high energy consumption.

功率计显示的读数为1500 apparent watt (视在瓦特),表明能耗较高。

3.To ensure efficiency, it's important to understand the difference between apparent watt (视在瓦特) and real power.

为了确保效率,了解apparent watt (视在瓦特)和实际功率之间的区别非常重要。

4.The transformer operates at a rating of 2000 apparent watt (视在瓦特), making it suitable for various applications.

该变压器的额定值为2000 apparent watt (视在瓦特),使其适用于多种应用。

5.In electrical engineering, we often calculate the apparent watt (视在瓦特) to assess the total power in an AC circuit.

在电气工程中,我们通常计算apparent watt (视在瓦特)以评估交流电路中的总功率。

作文

Understanding the concept of electrical power is essential for anyone involved in electronics or electrical engineering. One important term that often comes up in discussions about power is apparent watt. This term refers to the total power in an electrical circuit, measured in volt-amperes (VA), which combines both the real power and reactive power components. To grasp the significance of apparent watt, we first need to differentiate between real power, reactive power, and apparent power.Real power, measured in watts (W), represents the actual power consumed by a device to perform useful work, such as lighting a bulb or running a motor. Reactive power, measured in volt-amperes reactive (VAR), does not perform any useful work but is necessary for maintaining the electric and magnetic fields in inductive and capacitive components of the circuit. The apparent watt, therefore, is the combination of these two types of power: it is the product of the voltage and the current in the circuit, without taking into account the phase difference between them.The relationship between these three types of power can be illustrated using the power triangle. In this triangle, the real power is represented on the horizontal axis, reactive power on the vertical axis, and apparent watt forms the hypotenuse. This visual representation helps us understand how these powers relate to each other and why understanding apparent watt is crucial in electrical systems.One practical application of knowing apparent watt is in the selection of appropriate equipment for electrical installations. For instance, when setting up a generator, it is vital to consider the apparent watt rating to ensure it can handle the total load without overloading. If only real power is considered, there is a risk of underestimating the generator's capacity, leading to potential failures or inefficiencies.Moreover, in power factor correction, understanding apparent watt becomes even more critical. Power factor is the ratio of real power to apparent watt, indicating how efficiently the electrical power is being used. A low power factor means that a significant amount of power is wasted in the form of reactive power. By correcting the power factor, industries can improve their energy efficiency, reduce electricity costs, and minimize the environmental impact of their operations.In conclusion, the term apparent watt encapsulates a fundamental aspect of electrical power that integrates both real and reactive components. Recognizing its importance allows engineers and technicians to design better systems, select suitable equipment, and implement energy-saving strategies. As technology continues to evolve, the relevance of understanding concepts like apparent watt will only increase, emphasizing the need for ongoing education in the field of electrical engineering. By mastering this term, individuals can contribute to more efficient and sustainable electrical systems, ultimately benefiting society as a whole.

理解电力的概念对于任何参与电子或电气工程的人来说都是至关重要的。在讨论电力时,常常会提到一个重要的术语——表观瓦特。这个术语指的是电路中的总功率,以伏安(VA)为单位,它结合了实际功率和无功功率的组成部分。要掌握表观瓦特的重要性,我们首先需要区分实际功率、无功功率和表观功率。实际功率以瓦特(W)为单位,代表设备为执行有用工作而消耗的实际功率,例如照明灯泡或运行电动机。无功功率以伏安无功(VAR)为单位,不执行任何有用工作,但对于维持电路中感性和容性元件的电场和磁场是必要的。因此,表观瓦特是这两种功率的组合:它是电路中电压和电流的乘积,而不考虑它们之间的相位差。这三种功率之间的关系可以通过功率三角形来说明。在这个三角形中,实际功率在水平轴上表示,无功功率在垂直轴上表示,而表观瓦特形成斜边。这种视觉表现帮助我们理解这些功率之间的关系,以及为什么理解表观瓦特在电气系统中至关重要。了解表观瓦特的一个实际应用是在电气安装中选择合适的设备。例如,在设置发电机时,考虑表观瓦特额定值至关重要,以确保它能够处理总负载而不至于超载。如果仅考虑实际功率,就有可能低估发电机的容量,从而导致潜在的故障或低效率。此外,在功率因数校正中,理解表观瓦特变得更加重要。功率因数是实际功率与表观瓦特的比率,指示电力的使用效率。低功率因数意味着大量电力以无功功率的形式浪费。通过校正功率因数,工业可以提高能源效率,降低电费,并最小化其运营对环境的影响。总之,术语表观瓦特概括了电力的一个基本方面,整合了实际和无功组件。认识到它的重要性使工程师和技术人员能够设计更好的系统,选择合适的设备,并实施节能策略。随着技术的不断发展,理解像表观瓦特这样的概念的相关性只会增加,这强调了在电气工程领域持续教育的必要性。通过掌握这个术语,个人可以为更高效和可持续的电气系统做出贡献,最终使整个社会受益。

相关单词

watt

watt详解:怎么读、什么意思、用法