kilovoltampere hour

简明释义

千伏安小时

英英释义

例句

1.The energy consumption of the factory is measured in kilovoltampere hour (千伏安时) to track efficiency.

工厂的能耗以千伏安时（千伏安时）为单位进行测量，以跟踪效率。

2.Our solar panel system can generate up to 5 kilovoltampere hour (千伏安时) on a sunny day.

我们的太阳能电池板系统在阳光明媚的日子里可以产生高达5千伏安时（千伏安时）的电量。

3.The generator produces energy at a rate of 100 kilovoltampere hour (千伏安时) which is sufficient for powering several homes.

发电机以每小时100千伏安时（千伏安时）的速度产生能量，足以为几户家庭供电。

4.The battery backup can store 10 kilovoltampere hour (千伏安时) of energy for use during power outages.

电池备份可以存储10千伏安时（千伏安时）的能量，以备停电时使用。

5.To ensure optimal performance, the UPS should be rated at least 15 kilovoltampere hour (千伏安时).

为了确保最佳性能，不间断电源的额定值应至少为15千伏安时（千伏安时）。

作文

In the ever-evolving world of electrical engineering and energy consumption, understanding key concepts is essential for both professionals and enthusiasts. One such term that often arises in discussions about power supply and energy storage is kilovoltampere hour. This unit of measurement plays a crucial role in quantifying energy usage and efficiency in various applications, from residential settings to large industrial operations. In this essay, we will explore what kilovoltampere hour means, its significance, and how it is applied in real-world scenarios.To begin with, the term kilovoltampere hour (kVAh) is a measure of electrical energy equivalent to one kilovoltampere (kVA) of apparent power consumed over the duration of one hour. It combines the concepts of voltage, current, and time into a single metric, allowing for a more comprehensive understanding of energy consumption. The 'kilo' prefix indicates that the measurement is in thousands, making it a suitable unit for larger-scale operations where energy usage can be significant.The significance of kilovoltampere hour lies in its ability to represent not just the energy consumed but also the capacity of electrical systems to handle loads. For instance, when evaluating the performance of generators, transformers, or UPS systems, engineers will often refer to kVAh to determine their efficiency and operational limits. This is particularly important in settings where energy demand fluctuates, as it helps in designing systems that can adequately meet peak loads without compromising performance.Moreover, the concept of kilovoltampere hour is vital for utility companies and consumers alike. Electric utilities often charge customers based on their energy consumption measured in kWh (kilowatt hours), which is similar but distinct from kVAh. Understanding the difference between these units is crucial for consumers aiming to optimize their energy bills. While kWh measures real power consumed, kVAh accounts for both real and reactive power, providing a broader view of energy usage. This distinction becomes especially relevant in industries that utilize inductive loads, such as motors and transformers, which can lead to discrepancies between kWh and kVAh readings.In practical applications, businesses often monitor their kilovoltampere hour usage to enhance energy efficiency and reduce costs. By analyzing kVAh data, companies can identify patterns in energy consumption, pinpoint inefficiencies, and implement strategies to mitigate waste. For example, a manufacturing plant might discover that certain machines operate at high kVAh levels during peak hours, prompting them to shift operations to off-peak times or invest in more energy-efficient equipment.Furthermore, renewable energy systems, such as solar panels and wind turbines, also utilize kilovoltampere hour as a critical metric. As these systems become more integrated into the grid, understanding their output in terms of kVAh helps in managing supply and demand effectively. This is particularly important for ensuring that renewable sources can contribute reliably to the overall energy mix, especially during periods of high demand.In conclusion, the term kilovoltampere hour is more than just a technical measurement; it represents a fundamental aspect of energy management in today's world. Whether in residential, commercial, or industrial contexts, grasping the implications of kVAh can lead to better energy practices, cost savings, and a more sustainable approach to power consumption. As the energy landscape continues to evolve, the importance of understanding such concepts will only grow, making it essential for all stakeholders to familiarize themselves with the nuances of kilovoltampere hour and its applications.

在不断发展的电气工程和能源消费世界中，理解关键概念对专业人士和爱好者来说都至关重要。在有关电力供应和能源存储的讨论中，经常出现的一个术语是千伏安时。这个测量单位在量化能量使用和效率方面发挥着至关重要的作用，从住宅环境到大型工业操作。在本文中，我们将探讨千伏安时的含义、其重要性以及它在现实场景中的应用。首先，术语千伏安时(kVAh)是一个电能的测量单位，相当于在一小时内消耗一千伏安(kVA)的视在功率。它将电压、电流和时间的概念结合成一个单一的度量，使我们能够更全面地理解能源消费。“千”这个前缀表示该测量单位为千的倍数，使其成为适用于大型操作的合适单位，因为这些操作的能源使用可能非常显著。千伏安时的重要性在于它不仅能够表示消耗的能量，还能够表示电气系统处理负载的能力。例如，在评估发电机、变压器或不间断电源(UPS)系统的性能时，工程师通常会参考kVAh来确定它们的效率和操作极限。这在能源需求波动的环境中特别重要，因为它有助于设计能够充分满足峰值负载而不影响性能的系统。此外，千伏安时的概念对公用事业公司和消费者同样至关重要。电力公司通常根据其以kWh（千瓦时）计量的能源消费向客户收费，这与kVAh类似但又有所不同。理解这些单位之间的差异对希望优化电费的消费者至关重要。虽然kWh测量的是实际消耗的功率，但kVAh则同时考虑了实际功率和无功功率，提供了能量使用的更广泛视角。在使用感应负载的行业中，例如电动机和变压器，这种区别变得尤其相关，因为它可能导致kWh和kVAh读数之间的差异。在实际应用中，企业通常会监测其千伏安时的使用情况，以提高能源效率并降低成本。通过分析kVAh数据，公司可以识别能源消费模式，找出低效之处，并实施减少浪费的策略。例如，一家制造厂可能会发现某些机器在高峰时段运行在高kVAh水平，促使他们将操作时间调整到非高峰时段，或投资于更节能的设备。此外，太阳能电池板和风力涡轮机等可再生能源系统也将千伏安时作为关键指标使用。随着这些系统越来越多地融入电网，理解它们在kVAh方面的输出有助于有效管理供需。这对于确保可再生资源在高需求期间能够可靠地贡献于整体能源组合尤为重要。总之，术语千伏安时不仅仅是一个技术测量；它代表了当今世界能源管理的一个基本方面。无论是在住宅、商业还是工业环境中，掌握kVAh的含义都可以带来更好的能源实践、成本节约以及对电力消费的更可持续方法。随着能源格局的不断演变，理解这些概念的重要性只会增加，使所有利益相关者都必须熟悉千伏安时及其应用的细微差别。