UNITING STRUCTURE OF INSULATION FRAME AND UPPER TERMINAL FOR VACUUM CIRCUIT BREAKER

摘要

PURPOSE: The top terminal of the vacuum interrupter and coupling structure of the insulating frame infra position the insulating frame the top terminal in which the electric field lows. In that way the insulation performance can be improved. CONSTITUTION: The top terminal comprises a plurality of radiating ribs in the outer circumference. The insulating frame locates at the lower part of the top terminal. The connecting part(300) is fixed and coupled through the top terminal in the insulating frame. It is pitted between the radiating rib so that the head unit be projected on the radiating rib.