Feasibility study on partial insulation winding technique for the development of self-protective MgB2 magnet

•Feasibility of using the partial insulation winding technique for MgB2 MRI magnet.•Development of a self-protective MgB2 MRI magnet.•Charge-discharge and quench tests for a partial insulation MgB2 magnet.•Self-protecting behavior of partial insulation MgB2 magnet.•Required time to charge 0.5-T/300-mm PI MgB2 magnet.