A CONTACT FOR A HIGH-VOLTAGE VACUUM ARC EXTINGUISHING CHAMBER

摘要

The invention provides a contact for a high-voltage vacuum arc extinguishing chamber in the technical field of vacuum arc extinguishing chamber. The invention addresses the problem that the heat of the vacuum chamber is caused to be high by the resistance of the contacts in the high-voltage vacuum arc extinguishing chamber. The contact of the invention includes a conductive connecting piece, an annular outer contact and an inner contact which is located within the ring of the outer contact and does not contact with the outer contact. The conductive connecting piece, inner contact and outer contact are coaxial and the contact surface of the inner contact is on the same plane as that of the outer contact. The outer contact is fixed on the conductive connecting piece. An axial magnetic field means is covered outside of the conductive connecting piece for generating an axial magnetic field.