voltage triangle

简明释义

电压三角形

英英释义

例句

1.The voltage triangle (电压三角形) is essential for calculating the apparent power in a circuit.

在电路中，电压三角形 (voltage triangle) 对于计算表观功率是必不可少的。

2.During our physics lab, we used the voltage triangle (电压三角形) to better understand the relationship between reactive and active power.

在我们的物理实验室中，我们使用了电压三角形 (voltage triangle) 来更好地理解无功功率和有功功率之间的关系。

3.When analyzing AC circuits, we often use the voltage triangle (电压三角形) to determine the phase difference between voltage and current.

在分析交流电路时，我们通常使用电压三角形 (voltage triangle) 来确定电压和电流之间的相位差。

4.The voltage triangle (电压三角形) can be drawn to illustrate the vector nature of AC voltages.

可以绘制电压三角形 (voltage triangle) 来说明交流电压的矢量特性。

5.In electrical engineering, the concept of the voltage triangle (电压三角形) helps to visualize the relationships between voltage, current, and impedance.

在电气工程中，电压三角形 (voltage triangle) 的概念有助于可视化电压、电流和阻抗之间的关系。

作文

The concept of the voltage triangle is fundamental in electrical engineering, particularly when analyzing alternating current (AC) circuits. It provides a visual representation of the relationships between voltage, current, and impedance in a circuit. Understanding the voltage triangle helps engineers and technicians design and troubleshoot electrical systems more effectively.In essence, the voltage triangle is a right-angled triangle where each side represents a different electrical quantity. The vertical side represents the reactive voltage (V_R), which is associated with the reactive components of the circuit such as inductors and capacitors. The horizontal side represents the true voltage (V_T), which is the voltage that is actually applied to the load. The hypotenuse represents the apparent voltage (V_A), which is the vector sum of the true voltage and the reactive voltage.One of the key aspects of the voltage triangle is its ability to illustrate the phase relationship between current and voltage in AC circuits. In purely resistive circuits, the current and voltage are in phase, meaning they reach their maximum and minimum values simultaneously. However, in circuits with reactive components, there is a phase difference. This phase difference can lead to power factor issues, which is crucial for engineers to understand in order to optimize energy usage and minimize losses.The power factor (PF) is defined as the cosine of the angle θ, which is formed between the true voltage and the apparent voltage in the voltage triangle. A power factor close to 1 indicates that most of the energy supplied is being used effectively, while a lower power factor signifies that a significant portion of the energy is being wasted. Engineers often strive to improve the power factor by adding capacitors or inductors to the circuit, which can help balance the reactive and true voltages represented in the voltage triangle.Moreover, the voltage triangle serves as a useful tool for calculating the total impedance in a circuit. Impedance combines both resistance and reactance, and it is essential for determining how much current will flow in response to a given voltage. By using the sides of the voltage triangle, engineers can easily calculate the total impedance and make necessary adjustments to ensure optimal performance of the electrical system.In conclusion, the voltage triangle is an invaluable concept in the field of electrical engineering. It not only aids in understanding the relationships between voltage, current, and impedance but also plays a critical role in improving power factor and optimizing circuit performance. By mastering the voltage triangle, engineers can enhance their ability to design efficient electrical systems and troubleshoot issues effectively, ensuring that electrical energy is used wisely and sustainably.

“电压三角形”的概念在电气工程中是基础性的，特别是在分析交流（AC）电路时。它提供了电路中电压、电流和阻抗之间关系的可视化表示。理解“电压三角形”有助于工程师和技术人员更有效地设计和排除电气系统故障。本质上，“电压三角形”是一个直角三角形，其中每一边代表不同的电气量。竖直边代表反应电压（V_R），与电路中的反应元件（如电感器和电容器）相关。水平边代表真实电压（V_T），即实际施加在负载上的电压。斜边代表表观电压（V_A），这是实际电压和反应电压的矢量和。“电压三角形”的一个关键方面是它能够说明交流电路中电流和电压之间的相位关系。在纯电阻电路中，电流和电压是同相的，这意味着它们同时达到最大值和最小值。然而，在具有反应元件的电路中，会存在相位差。这种相位差可能导致功率因数问题，这对于工程师来说至关重要，以便优化能量使用并最小化损耗。功率因数（PF）定义为角θ的余弦值，该角由真实电压和表观电压在“电压三角形”中形成。接近1的功率因数表示大多数供给的能量被有效利用，而较低的功率因数则意味着大量能量被浪费。工程师通常通过向电路中添加电容器或电感器来提高功率因数，这可以帮助平衡“电压三角形”中表示的反应电压和真实电压。此外，“电压三角形”作为计算电路总阻抗的有用工具。阻抗结合了电阻和反应性，对于确定在给定电压下将流入多少电流至关重要。通过使用“电压三角形”的边，工程师可以轻松计算出总阻抗，并进行必要的调整以确保电气系统的最佳性能。总之，“电压三角形”在电气工程领域是一个宝贵的概念。它不仅有助于理解电压、电流和阻抗之间的关系，还在改善功率因数和优化电路性能方面发挥着关键作用。通过掌握“电压三角形”，工程师可以增强设计高效电气系统和有效排除故障的能力，确保电能得到明智和可持续的使用。