SF6/CO2 Arc Plasma

Tunable Arc Quenching

This work provides a high-precision measurement scheme for post-arc plasma states in SF6 and SF6/CO2 mixtures, offering key data for assessing circuit breaker arc-quenching performance.

Liu, Tianxiao · Sun, Hao · Zhang, Yushi · Jianqiao, Xiao · Yang, Lu · Niu, Chunping · Wu, Yi

Spectrochimica Acta - Part B: Atomic Spectroscopy 2025

Specifications

During post-arc phase

{'zh': '', 'en': '70'} μs

Advantages

Pure SF6 arc diameter contracts with increasing pressure, central electron density first increases then decreases

Adding CO2 buffer gas reduces plasma decay rate