Megger internal parts course, in this course we will explore the intricate components and workings of a Megger, a crucial device used for testing insulation resistance in electrical systems. Starting with an overview of the Megger's purpose and applications, we will delve into the internal parts that make up this essential tool. You will learn about the voltage generator, which produces the high voltage required for testing, and the voltmeter, which measures the applied voltage to ensure accurate testing. The course will also cover the ammeter, used to measure the leakage current, and the internal battery, which powers the device. Additionally, we will discuss the role of the selector switch, allowing the user to choose different test ranges, and the guard terminal, which helps eliminate surface leakage effects for precise measurements. By understanding these components, you will gain insights into how the Megger operates and how each part contributes to its overall functionality. This knowledge will enable you to use the Megger effectively, ensuring accurate insulation resistance testing and enhancing the safety and reliability of electrical systems. Join us to master the internal parts of the Megger and become proficient in its operation and maintenance.