megohm meter

简明释义

兆欧表

英英释义

例句

1.The technician used a megohm meter (兆欧表) to ensure that the wires were properly insulated.

技术员使用兆欧表（megohm meter）确保电线绝缘良好。

2.Before starting the electrical work, it's essential to check the insulation resistance using a megohm meter (兆欧表).

在开始电气工作之前，使用兆欧表（megohm meter）检查绝缘电阻是至关重要的。

3.If the reading on the megohm meter (兆欧表) is too low, it indicates a potential fault in the circuit.

如果兆欧表（megohm meter）上的读数过低，这表明电路可能存在故障。

4.During routine maintenance, the engineer tested the motor's insulation with a megohm meter (兆欧表).

在例行维护期间，工程师使用兆欧表（megohm meter）测试电动机的绝缘性能。

5.A megohm meter (兆欧表) is crucial for diagnosing electrical issues in high-voltage equipment.

在高压设备中，兆欧表（megohm meter）对于诊断电气问题至关重要。

作文

A megohm meter is an essential instrument used in various fields, especially in electrical engineering and maintenance. It measures the resistance of electrical insulation, which is crucial for ensuring the safety and reliability of electrical systems. The term 'megohm meter' refers to a device that can measure resistance in megaohms, a unit that signifies one million ohms. Understanding how to use this tool effectively can significantly contribute to preventing electrical failures and accidents.The primary function of a megohm meter is to test the insulation resistance of electrical equipment. This is particularly important in industries where high voltages are present, such as power generation, transmission, and distribution. For instance, when testing a transformer, a technician will use a megohm meter to ensure that the insulation is intact and capable of withstanding the operational voltage without breaking down. If the insulation resistance is too low, it may indicate deterioration or damage, which could lead to short circuits or even fires.Using a megohm meter involves several steps. First, the technician must disconnect the equipment from the power source to ensure safety. Next, the leads of the meter are connected to the terminals of the equipment being tested. The meter is then set to the appropriate voltage level, usually between 250V to 1000V, depending on the equipment's specifications. Once the test is initiated, the megohm meter applies a high voltage and measures the resistance. The reading is displayed on the meter, and a value above a certain threshold indicates that the insulation is in good condition.In addition to its primary use in testing insulation, a megohm meter can also be used for troubleshooting electrical systems. For example, if an electrical circuit is experiencing intermittent failures, a technician may use the meter to check for insulation breakdowns that could cause leakage currents. By identifying these issues early, maintenance teams can address problems before they escalate, saving time and resources.Moreover, the importance of using a megohm meter extends beyond industrial applications. Electricians often use this tool in residential settings to ensure that wiring installations meet safety standards. Regular testing of insulation resistance can help prevent electrical shocks and fires in homes, making it a vital practice for maintaining electrical safety.In conclusion, the megohm meter is a critical tool in the field of electrical engineering and maintenance. Its ability to measure insulation resistance helps to ensure the safety and reliability of electrical systems across various applications. By understanding how to properly use a megohm meter, technicians and electricians can contribute to safer working environments and prevent costly electrical failures. Therefore, investing time in learning about this instrument and its applications is invaluable for anyone involved in electrical work.

兆欧表是一种在各个领域，尤其是电气工程和维护中使用的重要仪器。它测量电气绝缘的电阻，这对于确保电气系统的安全性和可靠性至关重要。术语“兆欧表”指的是一种可以测量兆欧（megaohm）电阻的设备，这是一种表示一百万欧姆的单位。有效理解如何使用该工具可以显著有助于防止电气故障和事故。兆欧表的主要功能是测试电气设备的绝缘电阻。这在高电压存在的行业中尤为重要，例如发电、输电和配电。例如，在测试变压器时，技术人员将使用兆欧表确保绝缘完好，并能够承受操作电压而不发生击穿。如果绝缘电阻过低，可能表明绝缘材料已恶化或损坏，这可能导致短路甚至火灾。使用兆欧表涉及几个步骤。首先，技术人员必须将设备与电源断开，以确保安全。接下来，将仪表的引线连接到被测试设备的端子上。然后，将仪表设置为适当的电压级别，通常在250V到1000V之间，具体取决于设备的规格。一旦测试启动，兆欧表会施加高电压并测量电阻。读数显示在仪表上，超过某个阈值的值表明绝缘状况良好。除了主要用于测试绝缘外，兆欧表还可用于故障排除电气系统。例如，如果电气电路出现间歇性故障，技术人员可以使用该仪表检查是否存在可能导致漏电流的绝缘故障。通过尽早识别这些问题，维护团队可以在问题升级之前解决，从而节省时间和资源。此外，使用兆欧表的重要性不仅限于工业应用。电工通常在住宅环境中使用此工具，以确保布线安装符合安全标准。定期测试绝缘电阻可以帮助防止家庭中的电击和火灾，使其成为维护电气安全的重要实践。总之，兆欧表是电气工程和维护领域的关键工具。它测量绝缘电阻的能力有助于确保各种应用中电气系统的安全性和可靠性。通过理解如何正确使用兆欧表，技术人员和电工可以为更安全的工作环境做出贡献，并防止代价高昂的电气故障。因此，花时间学习有关该仪器及其应用的知识，对于任何参与电气工作的人来说都是非常宝贵的。