What is the role of the zero-sequence current transformer and the residual current sensor

- Oct 02, 2019-

Zero-sequence current transformers are used for zero-sequence protection, and are generally used for power protection equipment such as small current grounding line selection devices and microcomputer harmonic elimination devices.

The residual current sensor is used for residual current protection (also known as leakage current protection), and the residual current transformer is one of the most critical components in the leakage protector.https://www.ctsensorducer.com/