Current transformers are categorized as measurement and protection types based on their purposes. They can also be further distinguished as Low Voltage Current Transformers, three-phase current transformers, Zero Sequence Current Transformers, Current Transformers for Power Meters, and Miniature Current Transformers. The core principle of a current transformer is founded on electromagnetic induction. By employing specific designs and structures, it converts high currents on the primary side into low currents on the secondary side, facilitating measurements and protection. Current transformers are widely used in power signal processing and power quality monitoring, operating in a variety of scenarios. They play an essential role in all stages of the power cycle, from measurement and protection to power generation, transformation, transmission, distribution, and consumption. Their precise and stable performance ensures the safe and stable operation of the power system.
