Anti-interference device for arrester leakage current detection

The utility model relates to an anti-interference device for arrester leakage current detection. Compared with the prior art, the defect that external stray capacitance of arresters interferes with arrester leakage current detection is solved. The anti-interference device comprises an arrester body (1), an on-line arrester monitor (5) and a current transformer (6), wherein the on-line arrester monitor (5) is connected with the current transformer (6). The anti-interference device further comprises a shielding ring (2). The shielding ring (2) sleeves the arrester body (1), the shielding ring (2) is arranged in a position which is 10cm above a tail-end umbrella skirt (7), and the shielding ring (2) is grounded through a shielding grounding wire (3). A grounding screw (8) of the arrester body (1) is connected with a grounding wire (4) which is grounded after passing through the current transformer (6). Leakage current generated by external stray capacitance of an arrester porcelain sleeve can be effectively shie