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The general concept of current transformers
Aug 06 , 2020
A general current transformer can transform a primary current with a large value into a secondary current with a smaller value according to a certain transformation ratio, so as to play the main purpose of maintenance and accurate measurement. The main function of the zero-sequence current transformer is to protect the power circuit when an electric shock accident or common leakage occurs in the p...
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Principle and Application of Hall-effect current sensor
Aug 06 , 2020
The power factor correction (PFC) circuit and inverter circuit in the telecom rectifier and server power supply unit (PSU) all need to detect the current signal on the high-voltage side to the controller on the low-voltage side, so an isolated current sensor is used. There are many ways to implement isolated current detection, such as current transformers (CT), isolation amplifiers, and Hall effec...
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Realization of current detection in automobile electronic system
Aug 12 , 2020
Here mainly introduces the detection method of electric current, find some factors that are easy to be neglected in the design. First consider two different methods: the detection method based on the magnetic field and the detection method based on the shunt. 1. Magnetic field-based detection methods (represented by current transformers and Hall sensors) have many advantages, such as good isolatio...
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The future development direction of electronic transformers
Aug 12 , 2020
According to media reports, the future research and development directions of electronic transformers include passive sensing, structural combination, functional reuse, and component standardization. Passive sensing: Due to the technical advantages of passive sensing methods, independent ECT sensing components will tend to be passive. This includes active sensors that will be self-powered by getti...
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Let's take a look at the difference between these two transformers
Sep 17 , 2020
The general mutual-inductance watt-hour meter and the high-voltage watt-hour meter of the three-phase watt-hour meter must be connected to a current transformer or a voltage transformer. This article mainly introduces you in detail what are voltage transformers and current transformers and What is the difference between these two transformers. 1. Voltage transformer The working principle of electr...
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What is the difference in working principle between current transformer and voltage transformer
Sep 17 , 2020
Working principle of current transformer The working principle of the current transformer is similar to that of the transformer. The most critical difference with the voltage transformer is that under normal operation, the pressure drop on the primary and secondary windings is not large, which is equivalent to a transformer with a short-circuit fault condition. Therefore, the magnetic flux Ф in th...
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You can understand these simple voltage transformer common sense
Sep 17 , 2020
Regarding voltage transformers, in fact, many people don’t know about it. Although voltage transformers have always been near your friends and serve your daily lives, then the following is about voltage transformers. Detailed description. 1. The working principle of voltage transformer is introduced in detail The number of the voltage transformer is P.T, and the working principle of the voltage tr...
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Let's talk about inductors today to see how it works
Sep 17 , 2020
Principle and main function of inductors Inductor is an electronic component that can convert electrical energy into magnetic energy, store it under appropriate conditions, and then release it and then convert it into electrical energy. The most important role of inductor is electromagnetic conversion. Inductor All electrical conductors (transmission lines) will cause electromagnetic fields when p...
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