Electrical Engineering

Fault Line Selection Method Based on Injected Current Distribution Characteristics in Distribution Networks

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Fault Line Selection Method Based on Injected Current Distribution Characteristics in Distribution Networks

The distribution network, as the “last mile” connecting the power system to users, directly affects social production and life. Single-phase grounding faults are the most common type of fault in distribution networks (accounting for over 70%), but traditional fault selection methods (such as zero-sequence current comparison based on steady-state quantities and energy methods based on … Read more

Beginner’s Guide to PLC Self-Study from Scratch (Control Circuits, PLC Ladder Diagrams) – 107 Pages

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Beginner's Guide to PLC Self-Study from Scratch (Control Circuits, PLC Ladder Diagrams) - 107 Pages

Beginner’s Guide to PLC Self-Study – 107 Pages.pdf Chapter 1: Introduction to Common Devices Around PLC and Simple Applications Chapter 2: Common Relay Control Circuits and Corresponding PLC Ladder Diagrams Explained How to Obtain the Materials Download link: (Copy and open in browser) 「Beginner’s Guide to PLC Self-Study – 107 Pages.pdf」 Link: https://pan.quark.cn/s/047b09c68b4b All MaterialsDisclaimer … Read more

Exploring the Premium Course at ShanghaiTech University | Introduction to Information Science and Technology

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Exploring the Premium Course at ShanghaiTech University | Introduction to Information Science and Technology

Click the blue text Follow us The premium course “Introduction to Information Science and Technology” (referred to as “Info Course”) at ShanghaiTech University is a mandatory general education course for all first-year students, established at the inception of the university. There are many mysterious legends surrounding the “Info Course” on campus. For students who have … Read more

Intelligent PLC Control Cabinet at the Institute of Chemistry, Chinese Academy of Sciences

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Intelligent PLC Control Cabinet at the Institute of Chemistry, Chinese Academy of Sciences

Click the above“blue text”to follow us! In the field of scientific research, the stability and intelligence of experimental equipment directly affect research efficiency and the quality of results. As a leading research institution in China, the Institute of Chemistry, Chinese Academy of Sciences, has high demands for the automation control and operational stability of experimental … Read more

Understanding RS232, RS485, RJ45, and Modbus Protocols: Clearing Up Confusion

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Understanding RS232, RS485, RJ45, and Modbus Protocols: Clearing Up Confusion

Consider a DC power supply with an output socket interface that has three pins: positive, negative, and ground. Accordingly, the load’s plug should also have three pins corresponding to the power supply side to correctly obtain power supply. Note that there are three essential conditions that must be met: The first is that the shape, … Read more

Understanding PLC Control Cabinets: A Comprehensive Guide

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Understanding PLC Control Cabinets: A Comprehensive Guide

Click↑↑ to follow JiCheng Training and pin it to your top for long-term free subscription Over 190,000 industrial control professionals follow this WeChat platform: technical sharing, learning exchange, industrial control videos PLC Control Cabinet refers to a complete control system that can control motors and switches within an electrical cabinet.PLC control cabinets have functions such … Read more

Essential Questions for Beginners in PLC: Avoiding Common Pitfalls

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Essential Questions for Beginners in PLC: Avoiding Common Pitfalls

Click on the “Technical Training” above and select “Top Public Account“ Over 160,000 industrial control professionals follow this WeChat platform: technical sharing, learning exchange, industrial control videos To be honest, in the electrical industry, if you are just looking to get by, this job will suffice for your needs. However, if you aspire to earn … Read more

Electrical Engineer’s On-Site Guide: Understanding CNC Machine Tool Electrical Knowledge!

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Electrical Engineer's On-Site Guide: Understanding CNC Machine Tool Electrical Knowledge!

The “Electrical and Electronic Bestsellers Series: Illustrated Guide to CNC Electrical Knowledge” focuses on CNC machine tools. It introduces the generality of CNC machine tools and uses the Siemens 802 series (economical CNC) and 810D/840D (mid-to-high-end CNC) as the main products to comprehensively present practical applications from CNC control devices, PLC programming, spindle and feed … Read more

Are You Using the Multimeter Correctly? Let This Guide Help Every Engineer!

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Are You Using the Multimeter Correctly? Let This Guide Help Every Engineer!

Click Mechanical Frontier” Follow for Updates Leading the Mechanical Frontier, Mechanical Videos, Automotive, Processing Technology, 3D Printing, Automation, Robotics, Production Processes, Bearings, Molds, Machine Tools, Sheet Metal, and other industry frontiers await you here A multimeter, also known as a multi-tester, is a multifunctional and multi-range measuring instrument. Generally, a multimeter can measure DC current, … Read more

Fundamental Knowledge of RS232/485 Serial Communication Every Electrical Engineer Must Know!

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Fundamental Knowledge of RS232/485 Serial Communication Every Electrical Engineer Must Know!

Data transmission between computers or between a computer and a terminal can be achieved using serial communication and parallel communication. Due to the advantages of serial communication, such as fewer lines and lower costs, especially in long-distance transmission, it has been widely adopted to avoid inconsistencies in multiple line characteristics. In serial communication, both parties … Read more