H01H33/045

HIGH VOLTAGE DC CONTACTOR ISOLATION VIA ELECTROMECHANICAL ACTUATION
20250112011 · 2025-04-03 ·

A high voltage DC contactor control system. The system reduces/eliminates arcing in in contactors and includes a short circuit protection system operably connected to the drive voltage configured to reducing arcing between portions of the contactor. The short circuit protection system includes a first arc prevention element and a first arc prevention driver configured to cause the first arc prevention element to be disposed between the first and second portions of the first contactor to prevent arcing between them.

High voltage DC contactor isolation via electromechanical actuation

A high voltage DC contactor control system. The system reduces/eliminates arcing in in contactors and includes a short circuit protection system operably connected to the drive voltage configured to reducing arcing between portions of the contactor. The short circuit protection system includes a first arc prevention element and a first arc prevention driver configured to cause the first arc prevention element to be disposed between the first and second portions of the first contactor to prevent arcing between them.

DISCONNECTOR CONTACT SYSTEM WITH CONTROLLED DISCHARGE

Embodiments herein provide a disconnector (300) for an electrical apparatus (200), comprising a first contact (310) having a longitudinal center axis and a second contact (320). At least one of the first contact (310) and the second contact (320) is movable in a direction of the longitudinal center axis of the first contact (310), the first contact (310) being connected to the second contact (320) in a closed position and disconnected from the second contact (320) in an open position. The first contact (310), at an end thereof directed towards and adjacent to the second contact (320), has a contact tip (330) comprising an ignition tip (335) at an inner opening of the first contact (310) defined by the contact tip (330), and where the ignition tip (335) protrudes from a neighbouring, surrounding part of the contact tip (330) in the direction of the longitudinal center axis.