PARTIAL DISCHARGE DETECTING APPARATUS FOR SOLID INSULATED LOAD BREAKER SWITCH

摘要

PURPOSE: A partial discharge detector of a solid insulation load breaker switch is provided to prevent weakening of a solid insulation material of a main circuit unit or degradation of an insulation characteristic and to minimize a crosstalk. CONSTITUTION: A main circuit unit(50) accommodates a main circuit switch and a ground switch inside a solid insulation cast unit and is arranged by phase. A phase connection connector(80) electrically connect the main circuit unit with the same phase in the lower part of the main circuit. An insulation plug(90) is a kind of stopper inserted into the lower part of the phase connection connector, forms an electrical insulator in the outside and inserts a conductor electrically connected the phase connection connector into the inside. A capacitive antenna(70) is engaged with the lower groove of the insulation plug, charges a partial discharge signal of the main circuit unit per phase.