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Miniature current transformers
Jun 09 , 2020
Miniature current transformers are divided into miniature current transformers (including miniature current transformers) and miniature voltage transformers. It is a device in the power industry and is generally used in various power instruments for measurement and protection. Compared with ordinary transformers, micro-transformers have a smaller size (the size of fingernails can be achieved) and ...
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The basic function of current transformer (1)
Jul 13 , 2020
Transformers are generally used in the maintenance process of high-voltage lines. After applying the transformer, the ultra-high voltage can be converted into a low voltage that is not harmful to us, so that we can carry out safety measurements. The key role of the transformer is to reduce the large current of the current loop by a certain proportion to the value that is conducive to accurate meas...
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Voltage transformers and current transformers
Aug 06 , 2020
In order to accurately measure the power consumption in high-voltage and high-current AC circuits, voltage transformers and current transformers are generally used to convert high voltage into low voltage and large current into small current, and configure a moderate meter to use voltage Transformers to carry out accurate measurements. For example, the current, working voltage, output power, frequ...
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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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Factors that harm coil inductance
Aug 06 , 2020
Coil is a more frequently used equipment in power circuits. It is made by winding a transmission line on an insulating tube. The material of the transmission line will endanger the function of the coil. Below I will tell everyone what are the elements that harm coil inductance and what is the function of coil inductance? What are the elements that harm coil inductance 1. The inductance value in th...
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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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Teach you to confirm these two kinds of transformers
Sep 17 , 2020
In order to accurately measure the power consumption in high-voltage and high-current AC circuits, voltage transformers and current transformers are generally used to convert high voltage into low voltage and large current into small current, and configure a moderate meter to use voltage Transformers to carry out accurate measurements. For example, the current, working voltage, output power, frequ...
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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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