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Introduction to EFT Immunity Measurement Electromagnetic Compatibility (EMC) is a crucial factor in the design and operation of electrical and electronic equipment. One of the significant aspects of EMC testing is the ability of a device to resist Electromagnetic Interference (EMI) caused by electrical fast transients (EFT), often referred to as Electrical Fast Transient/Burst Immunity. EFT immunity measurement is essential for determining how well a device can handle electrical disturbances from external sources without malfunctioning or failing. This article focuses on the EFT Immunity Measurement procedure, highlighting the role of LISUN’s EFT61000-4 EFT Immunity Measurement system. The EFT61000-4 is specifically designed to evaluate the susceptibility of electrical devices to electrical fast transients, ensuring they meet international EMC standards. What is EFT Immunity Measurement? EFT immunity measurement refers to the process of assessing a device’s resistance to high-frequency...

Abstract The increasing complexity of modern electrical and electronic systems, combined with their dependency on stable power inputs, necessitates rigorous testing of their immunity to voltage dips and interruptions. These events can significantly affect the operation of sensitive devices, particularly in industrial and commercial applications. This article provides an in-depth examination of DC voltage dips and interruptions testing, focusing on the characteristics and requirements of high-reliability equipment. Specifically, it explores the LISUN CSS61000-29 DC Voltage Dips and Interruptions Generator, a dedicated device designed for these tests. By analyzing the test procedure, equipment features, and compliance with international standards, this paper aims to outline the importance of DC voltage dips and interruptions immunity testing for modern systems. Additionally, relevant data and illustrations are included to support the technical discussion. 1. Introduction In the context o...

Introduction In the rapidly evolving field of electronics and electrical engineering, ensuring the reliability and durability of electronic devices against electromagnetic interference (EMI) is crucial. The Damped Oscillatory Magnetic Field Immunity Tester, specifically the LISUN DOMF61000-10 Damped Oscillatory Magnetic Field Immunity Tester, plays a pivotal role in assessing the ability of electronic devices to withstand oscillatory magnetic fields that are characteristic of power lines and industrial environments. This article provides an in-depth analysis of the LISUN DOMF61000-10, discussing its working principle, applications, and the importance of damped oscillatory magnetic field testing in compliance with international standards. It will also feature tables, relevant data, and visual illustrations to help understand the system’s functionality and testing capabilities. Working Principle of Damped Oscillatory Magnetic Field Immunity Testing The Damped Oscillatory Magnetic Field I...

Introduction Voltage impulse generators, commonly referred to as Voltage Spike Generators, are crucial tools in electromagnetic compatibility (EMC) testing. These devices simulate high-energy voltage spikes or transients that electrical equipment might encounter during operation, such as those caused by lightning strikes, switching operations, or power-line crosses. Voltage impulse generators are used to assess the performance and robustness of electronic components and systems under these extreme conditions. This article explores the principles behind voltage impulse generators, their applications, and a detailed review of the LISUN DO160-S17 Voltage Spike Generator, a leading model designed to meet industry standards for testing and compliance. 1. Overview of Voltage Impulse Generators Voltage impulse generators are designed to produce transient voltage spikes that simulate the surges and spikes seen in real-world electrical environments. These transients, often in the form of fast-r...

Abstract Conducted interference testing is a critical process in evaluating the electromagnetic compatibility (EMC) of electronic devices and systems. This paper provides a comprehensive analysis of conducted interference testing, focusing on the role of the LISUN EMI-9KB EMI Test Receiver in conducting EMI conducted interference tests. We explore the principles, setup, and applications of conducted interference testing, with an emphasis on the importance of accurate measurements for regulatory compliance. The paper also presents practical data, system configurations, and theoretical insights on the conducted interference test process. 1. Introduction Electromagnetic interference (EMI) is a significant concern in modern electronics, particularly as devices become more compact and integrated. Conducted interference refers to the unwanted electromagnetic energy that is transferred along conductive paths, such as power lines, signal cables, or grounding systems. This form of interference ...

Flammability testing plays a crucial role in ensuring the safety and compliance of electrical and electronic products. The vertical flammability test is a key method for assessing the fire resistance of various materials, particularly in electrical equipment, household appliances, and plastic components. This test is widely used to classify materials based on their flame-retardant properties, helping manufacturers ensure their products meet regulatory standards. This paper focuses on the applications of horizontal and vertical flammability tests, particularly the evaluation of HB&V level (50W) and 5V level (500W) materials, using the LISUN HVR-LS Horizontal Vertical Flame Tester. HVR-LS Horizontal Vertical Flame Tester Overview of Flammability Testing Flammability testing involves subjecting materials to controlled flame conditions and observing their behavior, such as ignition time, burning rate, and self-extinguishing ability. The results of these tests provide essential data to ...

Introduction In today’s rapidly evolving electrical and electronic systems, ensuring the resilience of devices against voltage dips and interruptions is critical. Voltage dips and interruptions are common disturbances in power supply systems that can have a significant impact on the operation of sensitive electrical equipment. To simulate these disturbances, high-reliability equipment such as the Voltage Dips and Interruptions Generator is used to perform essential testing, ensuring devices can withstand temporary power supply interruptions and voltage dips. The Voltage Dips and Interruptions Generator, specifically the LISUN CSS61000-11, has been designed to comply with international standards for electromagnetic compatibility (EMC) and product reliability testing. This device is used to simulate power dips, short-term interruptions, and their effects on electrical equipment. In this paper, we will explore the importance of these tests, the functionality of the LISUN CSS61000-11, its ...