Electrical Engineering

Interpretation of Standard T/CES 251-2023 on Energy Storage System Inverter Testing

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The group standard T/CES 251-2023 “Hardware-in-the-Loop Testing Specification for Grid-Connected Performance of Energy Storage System Inverters” was proposed by the China Electrical Engineering Society and drafted by the Electric Power Research Institute of State Grid Henan Electric Power Company and other units. This standard specifies the technical requirements for preparation, testing platform, testing items and … Read more

How to Measure Current with a Multimeter

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How to Measure Current with a Multimeter

A multimeter can be used to measure current, and when measuring current with a multimeter, it is important to distinguish between direct current (DC) and alternating current (AC). Below is an explanation using the Victory digital multimeter: If you are repairing electronic circuit boards, you will mostly be measuring DC current, and most of it … Read more

Precautions for Using Digital Multimeters

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Precautions for Using Digital Multimeters

To avoid damage to the multimeter, please pay attention to the following points. 1. Most digital multimeter damages are caused by incorrect measurement range settings. For example, when measuring AC mains voltage, if the measurement range is set to resistance, the moment the probe contacts the mains, it can instantly damage the internal components of … Read more

Comprehensive Guide to Using Digital Multimeters

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Comprehensive Guide to Using Digital Multimeters

1 Hello today! The digital multimeter can measure DC and AC voltage, DC and AC current, resistance, capacitance, frequency, batteries, diodes, etc. The overall circuit design is centered around a large-scale integrated circuit dual-slope A/D converter, equipped with a complete overload protection circuit, making it a superior performance tool and one of the essential tools … Read more

Choosing Digital Multimeters: Factors Often Overlooked

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Choosing Digital Multimeters: Factors Often Overlooked

Digital multimeters have always been essential measuring instruments for production testing engineers, R&D engineers, and electrical maintenance personnel. It is important to understand how to choose a suitable multimeter. This article will detail the options that are often overlooked when selecting a multimeter, as well as the types and selection of multimeter probes. Factors Often … Read more

How to Measure Leakage Current with a Multimeter

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How to Measure Leakage Current with a Multimeter

Click the above↑↑↑『Electrical Engineering Technical Knowledge Learning』Follow this public account to join the WeChat group for free technical consultations Articles You May Like How to Convert Three-Phase Power to 220V and Create a Neutral Wire More than 60 Brands of Inverter Passwords, Internal Documents Recommended to Keep Collect the Most Comprehensive Electrical Engineering Mnemonics, No … Read more

Flexible Applications of Multimeters in Maintenance Work

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Flexible Applications of Multimeters in Maintenance Work

Click “Mechanical Industry Press E Vision” for quick follow-up A multimeter is a magnetic-electric instrument equipped with a rectifier that can measure various electrical parameters such as AC and DC current, voltage, and resistance. Some models can also measure key parameters of transistors and capacitance. Mastering the use of a multimeter is one of the … Read more

A Step-by-Step Guide to Using a Multimeter

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A Step-by-Step Guide to Using a Multimeter

Click the above↑↑↑『Electrical Engineering Knowledge Learning』Follow this public account to join the WeChat group for free technical consultations Articles You May Like How to Convert Three-Phase Power to 220V and Create a Neutral Wire Over 60 Brands of Frequency Converter Passwords, Internal Materials Recommended to Keep Collect the Most Comprehensive Electrical Engineering Mnemonics, No Need … Read more

How to Use a Multimeter to Check if a Motor is Burned Out?

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How to Use a Multimeter to Check if a Motor is Burned Out?

How to use a multimeter to check if the water pump motor coil is burned out? To determine the quality of the motor, three conditions must be measured: the absence of open circuits and short circuits between the coil windings, and the insulation resistance. First, check whether the motor is a three-phase motor or a … Read more

Multimeter Usage Tips: Top 10 Applications

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Multimeter Usage Tips: Top 10 Applications

New friends click on the blue text “Mechanical Industry Press E Vision” to follow 1. Identifying the Start and End of Motor Windings with a Multimeter When the six output terminals of a three-phase asynchronous motor are lost or unclear, or when the windings are rewound, it is necessary to determine which two output terminals … Read more