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所在平台: Udemy |
课程主页: https://www.udemy.com/course/advanced-concepts-in-grounding-and-fault-mitigation/
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课程名称：高压电气接地与故障缓解的高级概念 课程概述：本课程结合了22年的实践经验，专注于中压（MV）、高压（HV）和超高压（EHV）电气设备的接地及故障缓解。课程讲师曾在多个重要项目中为电力分配网络设计提供咨询，拥有电力与电气机器工程的硕士学位，专注于使用先进的人工智能技术（LSTM）检测和识别电能质量问题。 本课程旨在通过最佳的工程程序，将理论与实践相结合，适合不同技能水平的工程师和学生，从大学工程专业的学生到有经验的电力系统工程师均可受益。课程将复杂的理论以简单的方式解释，并通过直观的视觉效果和实际案例增强学习体验，使学员能够将学术知识转化为真实的实用技能。 课程内容主要涵盖以下主题： - 电气接地和故障缓解的高级概念 - 短路电流计算基础概述 - 孤立网络中的短路电流 - 接地阻抗的概念 - 通过调整中性接地方法控制故障电流 - 孤立、未接地系统中的接地故障 - 瞬态过电压及其在未接地系统中的产生 - 地面故障发生时可能产生的重要影响 - 二次短路的现象 - 电弧接地的现象及其危险性 - 电动机的假启动现象 - 低压系统中的接地方法 - 系统接地的主要目标 - 基于经验的接地指导原则 - 电力网络中的自然电容 - 接地变压器及其在电气系统中的作用 - 接地变压器如何限制故障电流 - Zigzag接地变压器及其关键考虑因素 - 各种接地方法 - 悬空网络、直接有效接地、高阻接地和其他接地方式 - 低压网络中接地的最终建议 - 中压系统中的接地方法 - 中压系统中的保护方案，如剩余继电器方案和接地传感器方案 - 危险区域的接地系统 - 铁谐振现象与接地的关系 - 接地设备的额定值和规格选定步骤 无论您是希望深化知识的学生，还是需要提升工作技能的专业工程师，本课程都将为您提供不可或缺的实用技能和最新的行业最佳实践。
Through my practical experience (22 years) in the field of electrical substations for medium voltage (MV), high voltage (HV), and extra-high voltage (EHV), as well as working with various consulting offices in designing electrical distribution networks for many important projects that require accuracy in various electrical calculations, in addition to obtaining a Master's degree in Engineering Sciences in Power and Electrical Machines Engineering titled "Detection and Identification of Power Quality Problems using advanced Artificial Intelligence techniques (LSTM)", this course and these very important questions were prepared using the best engineering programs that connect academic/theoretical aspects with practical/reality in high voltage and extra-high voltage electrical substations, as well as distribution networks for medium and low voltages.This unique approach to explanation and question preparation has been designed to cater to all engineering and technical levels, starting from students in engineering universities and various technical institutes, all the way to highly experienced specialized engineers in power systems and electrical distribution.The course has been explained in a practical manner, relying on simplicity in theoretical explanations and placing greater emphasis on visuals and real-life practical examples. This approach allows us to connect academic theoretical study with what actually exists in practical reality for real-world application after completing this course.The course we have is closely related to the power systems and electrical distribution systems. In this course, we provide the following:Advanced Concepts in Electrical Grounding and Fault Mitigation* A quick overview of the fundamentals of short-circuit current calculations.* Short-circuit currents in isolated networks.* Earthing or grounding impedance.* How fault currents can be controlled by adjusting the neutral grounding method.* Ground fault in isolated, unearthed, systems.* Transient overvoltages and how they occur in ungrounded systems.* Important effects that can occur when a ground fault happens.* An important phenomenon known as the Second Short Circuit* The phenomenon of arcing ground-what it is, how it happens, and why it can be dangerous.* The phenomenon of false starting in motors.* Grounding in low-voltage systems.* Primary objectives of system grounding.* Experience-based guidelines for grounding.* Natural capacitances in electrical networks.* Grounding transformers and their roles in electrical systems.* How grounding transformers can be used to limit fault current.* The Zigzag Grounding Transformer and its key considerations.* Grounding Methods.* Ungrounded Networks.* Direct and Effective Grounding.* High Resistance Grounding.* Final recommendation for the types of grounding used in low-voltage networks.* Grounding methods used in medium-voltage systems.* Ungrounded Systems.* Solid Grounding.* Low-Resistance Grounding.* High Resistance Grounding.* Reactance Grounding.* Ground Fault Neutralizer Grounding.* Protection Schemes used in medium-voltage systems.* Residual Relaying Scheme.* Ground Sensor Scheme.* Neutral Ground Scheme.* Grounding systems in hazardous areas.* Grounding and the ferroresonance phenomenon.* Ratings and specifications of grounding devices.* The steps for selecting and determining ratings for the grounding by reactance and grounding with a Zigzag transformer.
