Electrical Safety

Essential Electrical Knowledge Required for Learning PLC Programming

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LearningPLC programmingrequirescertainbasic electricalknowledge.What are the specific requirements?Today, I will discuss this. 1.Electrical Safety: As long as you are considering a career in the electrical automation industry,regardless of whattechnology you learn, the first priority isto havea sense of safety,and tohave respect for the field. 2.Relays and Control Circuits: I recommend that everyone buya switching power supply,several … Read more

Why Connect a Resistor and Capacitor Between PCB GND and Chassis GND?

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Why Connect a Resistor and Capacitor Between PCB GND and Chassis GND?

The chassis is metallic, with a screw hole in the middle that connects to the ground. Here, a 1M resistor is connected in parallel with a 1nF capacitor to the circuit board ground. What are the benefits of this setup?In metal chassis devices, the PCB GND (signal ground) is connected to the chassis GND (enclosure … Read more

Essential Guidelines for Using a Multimeter

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Essential Guidelines for Using a Multimeter

A multimeter, also known as a multi-tester, is a multifunctional and multi-range measuring instrument. Generally, a multimeter can measure direct current (DC) and voltage, alternating current (AC) voltage, resistance, and audio levels. Some models can also measure AC current, capacitance, inductance, and certain parameters of semiconductors. It is a commonly used tool for electricians. 1. … Read more

Understanding A, B, C, and D Miniature Circuit Breakers

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Understanding A, B, C, and D Miniature Circuit Breakers

When it comes to miniature circuit breakers, most electrical personnel are likely familiar with them. However, when it comes to choosing between A, B, C, and D miniature circuit breakers, many electrical professionals may only have a vague understanding, and some may be completely unaware.We all know that miniature circuit breakers, abbreviated as MCBs, are … Read more

One-Stop Energy IoT Platform: Acrel EIOT Supports Power Operation and Maintenance

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One-Stop Energy IoT Platform: Acrel EIOT Supports Power Operation and Maintenance

With the continuous advancement of digital energy management, traditional power systems face new challenges in real-time performance, integration, and intelligence. Acrel Electric, based on IoT technology, has launched the Acrel-EIoT energy IoT cloud platform, which provides users with efficient and reliable energy data services by building a unified data platform and standardized interfaces. This platform … Read more

How to Measure Three-Phase Electricity with a Multimeter

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How to Measure Three-Phase Electricity with a Multimeter

Click on the above ” Technical Training “, select “Pin Public Account“ 160,000+ followers on the WeChat platform for industrial control: technical sharing, learning exchange, industrial control videos Tools/Materials:1. Analog multimeter2. AC contactor with three wiresMethod/Steps:1. We know that household 220V AC is very dangerous; as long as you do not directly touch the wire … Read more

How to Use a Multimeter to Test Motor Condition

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How to Use a Multimeter to Test Motor Condition

Click on the “Technical Training” above, and select “Pin to Public Account“ Over 160,000 industrial control professionals follow this WeChat platform: technical sharing, learning exchange, industrial control videos. Many electricians are accustomed to using a shake table to measure the condition of motors in their daily work, which is undoubtedly a common and relatively safe … Read more

Using a Multimeter for Ground Testing

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Using a Multimeter for Ground Testing

—Tips: Click on the blue text to follow and view previous exciting content— High-speed railway signal technology communication Frontline ▏ Applicable ▏ Quality Products Content Guide ID: gaotiexinhao A multimeter is a comprehensive instrument composed of various measurement circuits such as ammeters, voltmeters, and ohmmeters through a switching device. Understanding the principles of each measurement … Read more

Common Tools for Instrument Maintenance and Usage Precautions

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Common Tools for Instrument Maintenance and Usage Precautions

Abnormal conditions in the petroleum and chemical production instruments (indications that are too high, too low, not changing, unstable, etc.) involve two factors: First is the process factor; Second is the instrument factor, where a fault in a certain link of the instrument (detection environment) causes the process parameter indication to be inconsistent with the … Read more

Practical Methods for Detecting Electrical Leakage at Home

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Practical Methods for Detecting Electrical Leakage at Home

Electricity Electricity has become an indispensable energy source in our lives. As temperatures rise this season, the occurrence of rainy and humid weather has also increased, leading to more reports of electrical leakage issues at home. For those with no basic knowledge of electrical work, discovering leakage in the home can be a big headache!!! … Read more