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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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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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Talk about why inductance can eliminate EMC
Feb 27 , 2021
Filtering power capacitors, common mode inductors, and magnetic beads are common shadows in the power supply circuit of EMC design schemes, and they are also the three major artifacts for solving interference signals. Regarding the effects of these three in the power circuit, I firmly believe that many technical engineers do not understand. The content of the article analyzes the basic principles ...
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What is the difference between current transformer and voltage transformer?
Aug 12 , 2021
Mutual-inductance meters and high-voltage meters of three-phase meters are connected to current transformers or voltage transformers as much as possible. This chapter explains in detail what are voltage transformers and current transformers and the differences between them. Transformer 1. Voltage transformer There are similarities between voltage transformers and transformers. The characteristics ...
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The higher the Q value, the lower the loss when winding the coil
Aug 12 , 2021
Let’s first talk about the definition of inductor quality factor Q Coil The Q value is the basic main parameter to consider the inductance. It refers to the ratio of the inductance exhibited by the inductance to its equivalent circuit loss resistance when the inductance works under a certain frequency of AC voltage. The higher the Q value of the inductor, the smaller its loss and the higher the ef...
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Introduction of preventive item inspection before voltage transformer is put into use
Mar 13 , 2022
Preventive testing is an important link in the operation and maintenance of power equipment, and it is one of the effective solutions to ensure the safe operation of power equipment. In order to better ensure that various technical indicators of voltage transformers meet the standards, power engineering construction companies will carry out preventive tests on transformers before they are put into...
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Analysis of Rogowski coils Start to understand step by step from three aspects
Mar 13 , 2022
What is a Rogowski coil? The Rogowski coil is a flexible clip-on hybrid inductor coil that can be easily coiled around a current conductor for measurement, capable of measuring large currents of several thousand amperes without expanding the size of the voltage transformer. Rogowski coils are electronic voltage transformers used to measure alternating currents such as fast transients, single-pulse...
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Brief Introduction of Rogowski Coils, from Three Aspects
Jun 17 , 2022
What is the Rogowski coil? The Rogowski coil is a flexible clip-on hybrid inductor coil that can be easily coiled around a current conductor for measuring. It is capable of measuring large currents of several thousand amperes without expanding the size of the voltage transformer. Rogowski coils are electronic voltage transformers used to measure alternating currents such as fast transients, single...
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