zero power factor

简明释义

零功率因数

英英释义

例句

1.Generators must be sized appropriately to handle loads with a zero power factor 零功率因数 to avoid overheating.

发电机必须适当地配置，以处理具有零功率因数零功率因数的负载，以避免过热。

2.A zero power factor 零功率因数 indicates that all the power is reactive, which does not perform any useful work.

一个零功率因数零功率因数表示所有的功率都是无功功率，这并不执行任何有用的工作。

3.Using equipment that operates at a zero power factor 零功率因数 can result in penalties from the utility company.

使用以零功率因数零功率因数运行的设备可能会导致公用事业公司收取罚款。

4.To improve efficiency, it's crucial to minimize zero power factor 零功率因数 conditions in electrical systems.

为了提高效率，减少电气系统中的零功率因数零功率因数情况至关重要。

5.In industrial settings, machines running at a zero power factor 零功率因数 can lead to increased energy costs.

在工业环境中，以零功率因数零功率因数运行的机器可能会导致更高的能源成本。

作文

In the world of electrical engineering, power factor is a crucial concept that describes the efficiency with which electrical power is converted into useful work output. It is defined as the ratio of real power, which does the useful work, to apparent power, which is the product of the current and voltage in an AC system. A power factor of 1 (or 100%) indicates that all the energy supplied by the source is being used effectively for productive work. However, when the power factor drops below 1, it means that some of the energy is wasted, primarily due to reactive power. One extreme case of this situation is referred to as zero power factor (零功率因数), which occurs when the load draws only reactive power and no real power. This phenomenon can lead to significant inefficiencies in electrical systems and can pose challenges for utility companies and consumers alike.A zero power factor scenario typically arises in inductive loads, such as motors and transformers, where the current lags behind the voltage. In such cases, while the voltage and current are present, the actual energy consumed for performing work is nonexistent. For instance, if a large motor is operating at a zero power factor, it may still draw a substantial amount of current, but it does not contribute to any productive output. Instead, it merely creates a magnetic field necessary for its operation. This situation leads to higher losses in the electrical distribution system, as more current must be supplied to achieve the same level of performance.The implications of a zero power factor extend beyond just technical inefficiencies; they also have financial repercussions. Utility companies often charge higher rates for customers who operate at low power factors because they must generate and transmit more power to meet the demand. Consequently, businesses and industries that rely heavily on inductive loads may face increased electricity bills. To mitigate these costs, many organizations invest in power factor correction devices, such as capacitors, which help improve the power factor by compensating for the lagging current.Moreover, maintaining a good power factor is essential for the stability and reliability of the electrical grid. A widespread occurrence of zero power factor can lead to voltage drops, overheating of equipment, and even blackouts. Therefore, both consumers and utility providers have a vested interest in monitoring and managing power factor levels effectively. Regular assessments and adjustments can help ensure that systems operate efficiently and sustainably.In conclusion, understanding the concept of zero power factor is vital for anyone involved in electrical engineering or energy management. By recognizing the implications of a zero power factor, stakeholders can take proactive measures to optimize their electrical systems, reduce costs, and enhance overall efficiency. As technology continues to evolve, addressing power factor issues will remain a critical aspect of ensuring sustainable energy consumption and reliable power delivery.

在电气工程的世界中，功率因数是一个关键概念，它描述了电能转化为有用工作输出的效率。功率因数被定义为实际功率（用于有用工作）与视在功率（在交流系统中电流和电压的乘积）的比率。功率因数为1（或100%）表明，从源头提供的所有能量都被有效地用于生产性工作。然而，当功率因数低于1时，这意味着部分能量被浪费，主要是由于无功功率。这种情况的一个极端例子被称为零功率因数（zero power factor），它发生在负载仅消耗无功功率而没有实际功率的情况下。这种现象可能导致电气系统的显著低效，并给公用事业公司和消费者带来挑战。零功率因数场景通常出现在感性负载中，如电动机和变压器，其中电流滞后于电压。在这种情况下，尽管电压和电流存在，但实际用于执行工作的能量却不存在。例如，如果一个大型电动机以零功率因数运行，它可能仍然会消耗大量电流，但并未对任何生产性输出做出贡献。相反，它只是创建了其操作所需的磁场。这种情况导致电力分配系统中的损失增加，因为必须提供更多电流才能达到相同的性能水平。零功率因数的影响不仅限于技术低效；它们还具有财务影响。公用事业公司通常会对低功率因数的客户收取更高的费用，因为他们必须产生和传输更多的电力以满足需求。因此，依赖感性负载的企业和工业可能面临更高的电费。为了减轻这些成本，许多组织投资于功率因数校正设备，如电容器，这有助于通过补偿滞后电流来改善功率因数。此外，保持良好的功率因数对电网的稳定性和可靠性至关重要。广泛出现的零功率因数可能导致电压下降、设备过热甚至停电。因此，消费者和公用事业提供者都有兴趣有效监控和管理功率因数水平。定期评估和调整可以帮助确保系统高效和可持续地运行。总之，理解零功率因数的概念对于任何参与电气工程或能源管理的人来说都是至关重要的。通过认识到零功率因数的影响，利益相关者可以采取主动措施来优化其电气系统、降低成本并提高整体效率。随着技术的不断发展，解决功率因数问题将仍然是确保可持续能源消费和可靠电力供应的关键方面。