MOA arresters cannot undergo periodic calibration in a timely manner due to power supply reliability requirements. To solve the above problems, this article establishes an online calibration system for MOA surge arresters with reverse cancellation injection based on the principle of magnetic force balance, and constructs a remote calibration architecture. The implementation of the above technology enables calibration personnel to obtain on-site calibration data from different locations in the laboratory, effectively solving the problem of inability to calibrate MOA arresters under working conditions and improving calibration efficiency.

MOA arresters; online calibration; remote calibration; periodic calibration