Tubular busbar connection fitting

The utility model relates to the technical field of connection fittings, and especially relates to a tubular bus connection fitting. The tubular bus connecting fitting comprises a connecting plate assembly, a sliding hoop, a fixed hoop and a wire. Wherein the connecting plate assembly and the fixing hoop are both of a conductive structure, and the connecting plate assembly is used for being fixedto the wiring end of the current transformer; the fixed hoop is fixedly sleeved on the tubular bus, and two ends of the wire are electrically connected with the fixed hoop and the connecting plate assembly respectively; the sliding hoop is fixed on the connecting plate assembly, the sliding hoop is sleeved on the tubular bus, and the tubular bus can telescopically slide in the sliding hoop along the length direction. The tubular busbar connection fitting provided by the utility model can alleviate damage to the tubular busbar, the DC filter capacitor and the current transformer caused by thermal expansion and cold con