APPARATUS FOR JUDGING FAILURE OF IRON CORE AND CLAMPING PART OF ULTRA-HIGH VOLTAGE ELECTRIC REACTOR, AND PROCESSING AND ELIMINATING SAME ONLINE

摘要

An apparatus for judging a failure of an iron core and a clamping part of an ultra-high voltage electric reactor, and processing and eliminating same online, which comprises a ground outgoing line for supporting an insulator; and comprises two groups of current transformers having a first, a second and a third current transformer; an electrical unit composed by a impedance limitation unit, a failure elimination apparatus, and thyristors connected in reverse parallel, which are connected in parallel; an AD conversion interface circuit and a single chip microcomputer. The ground outgoing line of the clamping part and the iron core passes through a coil of the first current transformer, then passes a parallel circuit composed by the impedance limitation unit, the failure elimination apparatus and two thyristors connected in reverse parallel, and reaches a ground end. The apparatus can greatly reduce the working intensity of an operating crew, can monitor the change of a ground current value of a clamping part and an iron core in real time online at a monitoring background, which has high monitoring precision, and can eliminate a failure in time, which avoids the further expansion of the failure range of an ultra-high voltage electric reactor, and ensures the safe and stable operation of a power grid.