volt ampere reactive

简明释义

乏

英英释义

例句

1.To improve energy efficiency, we need to reduce the volt ampere reactive (无功伏安) consumption in our facility.

为了提高能源效率，我们需要减少我们设施中的无功伏安（volt ampere reactive）消耗。

2.The utility company charges extra fees for customers who exceed their volt ampere reactive (无功伏安) limits.

公用事业公司对超过其无功伏安（volt ampere reactive）限额的客户收取额外费用。

3.The reactive power flow measured in volt ampere reactive (无功伏安) helps in balancing the load on the grid.

以无功伏安（volt ampere reactive）测量的无功功率流有助于平衡电网的负载。

4.In electrical engineering, the power factor is calculated using the formula that includes volt ampere reactive (无功伏安) to assess the efficiency of power usage.

在电气工程中，功率因数的计算公式中包含了无功伏安（volt ampere reactive），用于评估电力使用的效率。

5.When designing a generator, engineers must consider the volt ampere reactive (无功伏安) rating to ensure it can handle reactive loads.

在设计发电机时，工程师必须考虑无功伏安（volt ampere reactive）额定值，以确保其能够处理无功负载。

作文

Understanding electrical concepts is essential for anyone involved in the field of engineering or technology. One such concept that often arises in discussions about electrical systems is volt ampere reactive. To fully grasp what this term means, we must first break it down into its components and explore its significance in power systems. Volt ampere reactive, commonly abbreviated as VAR, refers to a unit of measurement used in alternating current (AC) electrical systems. It is a measure of reactive power, which is the power that oscillates between the source and the load in a circuit. Unlike active power, which does useful work, reactive power does not contribute to the actual consumption of energy but is vital for maintaining voltage levels necessary for the operation of electrical equipment.In AC systems, power can be divided into three categories: active power (measured in watts), reactive power (measured in VARs), and apparent power (measured in volt-amperes). Active power is the power that performs actual work, such as lighting a bulb or running a motor. Reactive power, on the other hand, is associated with the energy stored in inductors and capacitors within the electrical system. This energy is temporarily stored and then returned to the system, which is why it is termed 'reactive'. Apparent power is a combination of both active and reactive power, and it represents the total power flowing in the circuit.The importance of volt ampere reactive becomes evident when we consider the impact of reactive power on the efficiency of electrical systems. In many cases, especially in industrial settings, large inductive loads such as motors and transformers can create a significant amount of reactive power. If too much reactive power is present in a system, it can lead to poor voltage regulation and reduced efficiency. This is where power factor correction comes into play. By using capacitors to offset the effects of inductive loads, engineers can improve the power factor of a system, thereby reducing the amount of volt ampere reactive required.Moreover, understanding volt ampere reactive is crucial for utility companies as well. They must ensure that their power generation and distribution systems can handle both active and reactive power demands. An imbalance in these powers can lead to inefficiencies and increased operational costs. Utilities often charge for reactive power usage, incentivizing consumers to maintain a balanced power factor.In conclusion, the term volt ampere reactive encapsulates a fundamental aspect of AC electrical systems. While it may not directly translate to useful work, it plays an essential role in maintaining the stability and efficiency of electrical networks. Engineers and technicians must have a solid understanding of reactive power and its implications to design and operate effective electrical systems. As technology continues to advance, the management of volt ampere reactive will remain a critical component of electrical engineering, ensuring that our power systems are reliable, efficient, and capable of meeting the demands of modern society.

理解电气概念对于任何参与工程或技术领域的人来说都是至关重要的。在有关电气系统的讨论中，常常会出现一个术语，即伏安反应。为了全面理解这个术语的含义，我们必须先将其分解成组成部分，并探讨其在电力系统中的重要性。伏安反应，通常缩写为VAR，是用于交流（AC）电气系统的测量单位。它是反应功率的度量，反应功率是指在电路中源与负载之间振荡的功率。与执行有用工作的有功功率不同，反应功率并不直接贡献于能量的消费，但对于维持电气设备所需的电压水平至关重要。在交流系统中，功率可以分为三类：有功功率（以瓦特为单位）、反应功率（以VAR为单位）和视在功率（以伏安为单位）。有功功率是执行实际工作的功率，例如照明灯泡或运行电动机。另一方面，反应功率与电气系统内电感和电容器存储的能量相关。这种能量是暂时存储的，然后再返回到系统中，这就是为什么它被称为“反应”的原因。视在功率是有功和反应功率的组合，它代表了电路中流动的总功率。伏安反应的重要性在于我们考虑反应功率对电气系统效率的影响时变得显而易见。在许多情况下，特别是在工业环境中，大型感性负载如电动机和变压器可能会产生大量的反应功率。如果系统中存在过多的反应功率，可能会导致电压调节不良和效率降低。这就是功率因数校正发挥作用的地方。通过使用电容器来抵消感性负载的影响，工程师可以提高系统的功率因数，从而减少所需的伏安反应。此外，理解伏安反应对于公用事业公司也至关重要。他们必须确保其发电和配电系统能够处理有功和反应功率的需求。这些功率的不平衡可能导致低效和增加的运营成本。公用事业公司通常会对反应功率的使用收费，从而激励消费者维持平衡的功率因数。总之，术语伏安反应概括了交流电气系统的一个基本方面。尽管它可能无法直接转化为有用的工作，但它在维持电气网络的稳定性和效率方面发挥着至关重要的作用。工程师和技术人员必须深入理解反应功率及其影响，以设计和操作有效的电气系统。随着技术的不断进步，管理伏安反应将继续成为电气工程的关键组成部分，确保我们的电力系统可靠、高效，并能够满足现代社会的需求。