a split-core current transformer

Function: It allows for the measurement of AC current without needing to disconnect the primary conductor, making it suitable for retrofitting or applications where interrupting the circuit is not feasible. <br>Applications: Commonly used in power monitoring, energy management systems, and for providing current signals to ammeters, wattmeters, and other protective relays. <br>Types: Split-core current transformers are part of a broader category of instrument transformers, which also include ring-type and solid-core current transformers. <br>Selection Considerations: When choosing a current transformer, factors like the primary current, secondary current, accuracy class, and application environment are important.