Patent ID: 8508890
Filing Date: 2013-08-13
Classification: H01H

Abstract:
1. An arc extinguishing hybrid transfer switch, comprising a mechanical switch and a first thyristor branch connected in parallel with a first contact branch of the mechanical switch, wherein, the first thyristor branch comprises a first thyristor, a second thyristor, a first polarized capacitor and a second polarized capacitor, the first thyristor and the first polarized capacitor are connected in series in the same direction, the second thyristor and the second polarized capacitor are connected in series in the same direction, and a branch consisted of the first thyristor and the first polarized capacitor and a branch consisted of the second thyristor and the second polarized capacitor are connected in parallel in reverse direction, the arc extinguishing hybrid transfer switch further comprising: a first discharge circuit connected in parallel with the first polarized capacitor and a second discharge circuit connected in parallel with the second polarized capacitor.