Miniature circuit breaker magnetic trip characteristic test system

The invention provides a miniature circuit breaker magnetic trip characteristic test system, and relates to the technical field of magnetic trip characteristic test. Comprising a control module, a power supply module, an IGBT module, a current transformer, an anti-parallel thyristor and a single-phase transformer, the control module is used for collecting a power supply voltage waveform of the power supply module, controlling the IGBT module to work to be cut off when the waveform of the power supply voltage reaches a preset phase, and controlling the residual magnetism of the single-phase transformer to be minimum; the control module is also used for obtaining each excitation inrush current in a loop where the to-be-tested miniature circuit breaker is located at different closing angles, and actually measuring the tripping current of the circuit breaker and the tripping time of the to-be-tested miniature circuit breaker. The magnetizing inrush current generated during no-load charging of the transformer is u