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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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Smart grid: electronic transformer interface standards urgently need to be unified
Oct 28 , 2020
New electronic transformers have been developed and applied in our country for more than ten years, and more than 300 power stations have been tested or officially operated. The number of domestic units engaged in the research and development of electronic transformer technology has increased to more than 30, and some or all series of manufacturers have been close to 10. At present, in addition to...
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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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Current transformers are widely used. What are the wiring principles?
Aug 12 , 2021
Electrical debugging is a key content in power installation engineering project work. In electrical debugging work, secondary loop inspection is also a key adjustment content. It is related to the precise measurement, maintenance, and communication of the power supply system. A prerequisite that cannot be fully utilized. In the secondary loop, whether the wiring of the transformer is appropriate i...
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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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