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A brief introduction to zero sequence transformer
Oct 28 , 2020
Zero-sequence current transformers are also called residual current transformers, ground current transformers or leakage current transformers. They are usually used in power fire protection equipment. When the power system generates zero-sequence grounding current, it is used in conjunction with the relay protection device for pre-protection Or monitor. The basic principle of the zero sequence cur...
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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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How to choose split core current transformer correctly?
Dec 17 , 2020
Current transformers can be divided into high voltage and low voltage, which are mainly distinguished by the highest voltage of the equipment. Generally, 10KV or more is high voltage, 10KV is medium voltage, and 1kv and below are low voltage. Split core current transformer is mainly used in low voltage, because SCT must be opened and closed, which makes SCT unable to carry out effective sealing an...
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Principle and main function of transformer
Dec 17 , 2020
Current transformer is an electronic component that can convert electrical energy into magnetic energy, store it under appropriate conditions, and release it and then convert it into electrical energy. The most important role of inductor is electromagnetic conversion. All electrical conductors (transmission lines) will cause electromagnetic fields when passing current. When the electrical con...
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Analysis of the basic knowledge of these two current transformers and the difference between the two
Aug 12 , 2021
1. Bus-type current transformer and pillar-type current transformer Transformer I was asked a question by someone the day before, what is the difference between a bus-type current transformer and a pillar-type current transformer? At that time, there was some confusion, let alone the difference. I still don't have any idea what these two forms look like. After checking the materials, I found that ...
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The benefits of correct wiring of current transformers for short circuit inspection
Aug 12 , 2021
The wiring method of the current transformer is not very complicated, there are only four wiring forms. The four types of wiring will be listed below. Transformer 1. The first is the wiring method of a single current transformer. Under the condition of only single-phase current, it is suitable to measure one-phase current or three-phase load balance, and the three-phase status can be understood by...
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Detailed explanation of on-site office capacity of current transformer calibrator
Aug 12 , 2021
What is the current transformer calibrator Transformer The current transformer calibrator is used for high-voltage electric energy measurement in power generation and substations. It uses detection technology and large-scale electronic design. It solves the problems of high intensity and complicated actual operation on the current transformer and voltage transformer calibration site. Principle of ...
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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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