megohm meter

简明释义

兆欧计

英英释义

例句

1.For safety reasons, always verify the readings on the megohm meter (兆欧表) before working on high-voltage equipment.

出于安全原因，在处理高压设备之前，始终验证兆欧表 (megohm meter) 的读数。

2.A faulty motor can often be diagnosed using a megohm meter (兆欧表) to check for low insulation resistance.

可以通过使用兆欧表 (megohm meter) 检查低绝缘电阻来诊断故障电动机。

3.The megohm meter (兆欧表) showed that the insulation was below acceptable levels, indicating a potential hazard.

兆欧表 (megohm meter) 显示绝缘低于可接受水平，表明潜在危险。

4.The technician used a megohm meter (兆欧表) to test the cables for any insulation failures.

技术人员使用兆欧表 (megohm meter) 测试电缆是否存在绝缘故障。

5.Before starting the electrical work, make sure to check the insulation resistance with a megohm meter (兆欧表).

在开始电气工作之前，确保使用兆欧表 (megohm meter) 检查绝缘电阻。

作文

In the world of electrical engineering, understanding the various tools and instruments is crucial for ensuring safety and efficiency. One such instrument is the megohm meter, which is essential for measuring resistance in electrical circuits. A megohm meter (兆欧表) is specifically designed to measure high resistance values, typically in the range of megohms (millions of ohms). This tool is particularly useful when testing insulation resistance in cables, motors, and other electrical equipment. The operation of a megohm meter is relatively straightforward. It applies a known voltage to the circuit and measures the resulting current flow. By using Ohm's law, the meter can calculate the resistance based on the voltage applied and the current measured. The results are displayed on a digital or analog readout, allowing technicians to assess whether the insulation is functioning properly. One of the primary applications of a megohm meter is in preventive maintenance. Electrical systems can degrade over time due to environmental factors, wear and tear, or improper installation. Regular testing with a megohm meter helps identify potential issues before they lead to equipment failure or safety hazards. For example, if a motor's insulation begins to break down, it can result in short circuits or even fires. By using a megohm meter to regularly check the insulation resistance, technicians can take corrective action before a serious problem occurs. In addition to preventive maintenance, a megohm meter is also valuable during the commissioning of new electrical installations. Before putting any system into operation, it is essential to ensure that all components are correctly insulated and functioning as intended. A megohm meter helps verify that the insulation resistance meets the required specifications, providing peace of mind that the system will operate safely and efficiently. Furthermore, the megohm meter is not limited to industrial applications; it is also used in residential settings. Homeowners may use a megohm meter to test the insulation of their electrical wiring, especially in older homes where the insulation may have degraded over time. This proactive approach can help prevent electrical shocks and fire hazards, making homes safer for occupants. It is important to note that while a megohm meter is a powerful tool, it must be used with caution. When measuring high voltages, there is a risk of electric shock if proper safety protocols are not followed. Users should always wear appropriate personal protective equipment and ensure that the circuit being tested is de-energized before connecting the megohm meter. Additionally, understanding the limitations of the device is critical; for instance, readings can be affected by temperature, humidity, and the presence of contaminants on the insulation surface. In conclusion, the megohm meter is an indispensable tool in the field of electrical engineering. Its ability to measure high resistance values makes it vital for preventive maintenance, commissioning new installations, and ensuring safety in both industrial and residential settings. By regularly utilizing a megohm meter, technicians can help maintain the integrity of electrical systems, ultimately contributing to safer and more reliable operations.

在电气工程的世界中，理解各种工具和仪器对于确保安全和效率至关重要。其中一种仪器是兆欧表，它在测量电路中的电阻时至关重要。兆欧表（megohm meter）专门设计用于测量高电阻值，通常在兆欧（百万欧姆）的范围内。这种工具在测试电缆、马达和其他电气设备的绝缘电阻时特别有用。兆欧表的操作相对简单。它向电路施加已知电压并测量产生的电流流动。通过使用欧姆定律，仪表可以根据施加的电压和测量的电流计算电阻。结果显示在数字或模拟读数上，使技术人员能够评估绝缘是否正常工作。兆欧表的主要应用之一是在预防性维护中。电气系统可能由于环境因素、磨损或不当安装而随着时间的推移而退化。定期使用兆欧表有助于在设备故障或安全隐患发生之前识别潜在问题。例如，如果马达的绝缘开始降解，就可能导致短路甚至火灾。通过定期检查绝缘电阻，技术人员可以在严重问题发生之前采取纠正措施。除了预防性维护外，兆欧表在新电气安装的调试过程中也非常有价值。在投入任何系统运行之前，确保所有组件都正确绝缘且按预期工作至关重要。兆欧表有助于验证绝缘电阻是否符合所需规格，从而提供系统将安全有效运行的安心。此外，兆欧表不仅限于工业应用；它在住宅环境中也被广泛使用。房主可以使用兆欧表来测试其电线的绝缘，尤其是在老房子中，绝缘可能随着时间的推移而退化。这种主动的方法可以帮助防止电击和火灾隐患，从而使房屋对居住者更安全。需要注意的是，虽然兆欧表是一种强大的工具，但必须谨慎使用。在测量高电压时，如果不遵循适当的安全协议，存在电击的风险。用户应始终佩戴适当的个人防护设备，并确保在连接兆欧表之前被测试的电路处于断电状态。此外，了解设备的局限性至关重要；例如，温度、湿度和绝缘表面污染物的存在都可能影响读数。总之，兆欧表是电气工程领域中不可或缺的工具。它测量高电阻值的能力使其在预防性维护、新安装调试和确保工业和住宅环境安全方面至关重要。通过定期使用兆欧表，技术人员可以帮助维护电气系统的完整性，最终为更安全、更可靠的操作做出贡献。