Recent moves by industry giants like Siemens Energy and Hitachi Energy to roll out SF6-free switchgear at transmission ...

To analyze the contact erosion process of circuit breakers during current interruption, this paper established a 2D axisymmetric model of 126kV circuit breakers based on deformation grid technology ...

In the HVdc circuit breaker testing process, a thyristor is used to generate high current for the testing purpose. However, the reverse recovery process (RRP) of a thyristor can induce a significant ...