| 摘要 |
FIELD: high-voltage equipment. SUBSTANCE: invention refers to high-voltage grounding electrodes of factory-assembled switch gear with SFgas insulation. With rotation of shaft 5 movement is transmitted via lever mechanism 3 and tie-rod 4 to grounding rod 2 which is connected to main current-carrying circuit of factory-assembled switch gear. In this case first part 8 of rod 2 appears to be electrically connected to grounding element, then part 7 of rod with further movement with aid element is grounded through current collecting contacts 6 is connected to grounded frame 1. With contact of part 8 to grounding element 7 current-carrying circuit of factory-assembled switch gear is electrically connected to bushing insulator 12 by means of flexible insulated wire 11 which makes it possible to conduct graduation of measurement circuit of system of insulation diagnostics, for instance, of factory-assembled switch gear by value of single pulse charge using lead-out of bushing insulator 12 and to measure resistance of section of circuit of main current-carrying circuit of factory-assembled switch gear between two grounding electrodes. EFFECT: enhanced operational reliability and safety. 9 cl, 4 dwg |
