The Development of Current Transformers

The development history of current transformers is as follows:

Early current transformers were electromagnetic, using Faraday's principle of electromagnetic induction to measure the magnitude of current by measuring changes in magnetic field.

With the development of technology, electronic current transformers have gradually replaced electromagnetic current transformers. Electronic current transformers have higher measurement accuracy and wider measurement range.

Optical current transformers have been a research hotspot in the field of transformers both domestically and internationally in recent years. It utilizes the Faraday magneto-optical effect to combine optical and electronic technologies, resulting in higher insulation performance and stronger anti-interference ability.

Overall, current transformers have gone through the development process from electromagnetic, electronic to optical, with continuously improving measurement accuracy, range, and insulation performance. In the future, as the requirements for safety, reliability, efficiency, and environmental protection in the power system continue to increase, current transformers will be further developed and improved.