short circuit ratio

简明释义

短路比

英英释义

例句

1.The short circuit ratio is crucial for designing safe electrical installations.

短路比对于设计安全的电气安装至关重要。

2.We need to improve the short circuit ratio to enhance system reliability.

我们需要改善短路比以增强系统的可靠性。

3.The engineer calculated the short circuit ratio to determine the stability of the electrical system.

工程师计算了短路比以确定电气系统的稳定性。

4.A higher short circuit ratio indicates better protection against short circuits.

较高的短路比表示对短路的保护更好。

5.During the testing phase, we monitored the short circuit ratio closely.

在测试阶段，我们密切监测了短路比。

作文

In the field of electrical engineering, understanding various parameters is crucial for designing efficient and safe systems. One such important parameter is the short circuit ratio, which plays a significant role in the analysis of electrical machines and power systems. The short circuit ratio is defined as the ratio of the field current required to produce rated voltage at synchronous speed to the field current required to produce rated voltage under short-circuit conditions. This ratio helps engineers determine the stability and performance of synchronous machines during fault conditions.The significance of the short circuit ratio cannot be overstated. A higher short circuit ratio indicates that the machine has better short-circuit stability. This means that the machine can withstand sudden changes in load or faults without experiencing significant drops in voltage or operational instability. Conversely, a lower short circuit ratio suggests that the machine may be more susceptible to instability during short-circuit conditions, which can lead to severe operational issues.To illustrate this further, consider a synchronous generator used in a power plant. When the generator is operating normally, it produces electricity at a stable voltage. However, if a fault occurs, such as a short circuit in the transmission line, the generator must respond quickly to maintain voltage levels. The short circuit ratio provides insights into how well the generator can handle such disturbances. If the short circuit ratio is high, the generator can quickly adjust to the fault and maintain stable operation. On the other hand, if the ratio is low, the generator may struggle to recover, leading to potential blackouts or damage.Moreover, the short circuit ratio is also essential during the design phase of electrical machines. Engineers often aim for a specific short circuit ratio based on the intended application of the machine. For instance, machines designed for heavy industrial applications typically require a higher short circuit ratio to handle the robust loads and potential faults that may occur. In contrast, smaller machines used in less demanding environments might have a lower short circuit ratio since they are less likely to encounter severe operational disturbances.In conclusion, the short circuit ratio is a vital parameter in electrical engineering that affects the stability and performance of synchronous machines and power systems. Understanding this ratio allows engineers to design more reliable systems capable of withstanding faults and maintaining operational integrity. As the demand for electricity continues to grow, and as we integrate more renewable energy sources into our grid, the importance of parameters like the short circuit ratio will only increase. By prioritizing stability and performance through careful consideration of the short circuit ratio, engineers can help ensure that our electrical systems remain robust and resilient in the face of challenges.

在电气工程领域，理解各种参数对于设计高效和安全的系统至关重要。其中一个重要参数是短路比，它在电机和电力系统的分析中发挥着重要作用。短路比被定义为在同步速度下产生额定电压所需的励磁电流与在短路条件下产生额定电压所需的励磁电流的比率。这个比率帮助工程师确定同步机器在故障条件下的稳定性和性能。短路比的重要性不容小觑。较高的短路比表明机器具有更好的短路稳定性。这意味着机器能够承受负载或故障的突然变化，而不会出现显著的电压下降或操作不稳定。相反，较低的短路比则表明机器在短路条件下可能更容易受到不稳定性的影响，这可能导致严重的操作问题。为了进一步说明这一点，考虑一下用于发电厂的同步发电机。当发电机正常运行时，它以稳定的电压生产电力。然而，如果发生故障，例如输电线上的短路，发电机必须迅速响应以维持电压水平。短路比提供了关于发电机如何处理此类干扰的见解。如果短路比很高，发电机可以快速调整以应对故障并保持稳定运行。另一方面，如果比率较低，发电机可能会难以恢复，导致潜在的停电或损坏。此外，短路比在电机的设计阶段也至关重要。工程师通常根据机器的预期应用目标设定特定的短路比。例如，设计用于重工业应用的机器通常需要较高的短路比，以应对可能发生的强大负载和潜在故障。相比之下，用于需求较小环境的小型机器可能具有较低的短路比，因为它们不太可能遇到严重的操作干扰。总之，短路比是电气工程中一个至关重要的参数，影响同步机器和电力系统的稳定性和性能。理解这个比率使工程师能够设计出更可靠的系统，能够承受故障并保持操作完整性。随着对电力的需求不断增长，以及我们将更多可再生能源源整合到电网中，像短路比这样的参数的重要性只会增加。通过优先考虑稳定性和性能，并仔细考虑短路比，工程师可以帮助确保我们的电气系统在面对挑战时保持强大和弹性。