Upgrading of the stabilized direct-current power supply unit for the main winding of the iron-current channel at the JINR phasotron

A 12.5 kA/12 V stabilized direct-current power supply unit is described. The current instability and pulsation are 10-3 at the operating current 11 kA. A specific feature of the power supply is a thyristor regulator of alternative voltage with phase regulation, installed on the primary side of the rectifier transformer. In the rectifier there are 24 power diodes of current rating 1 kA. The 12.5 kA current transducer based on magnetic comparison of direct currents is connected to the load circuit of the unit. The block diagram of the unit, the basic circuit of its blocks and the design of the isolator unit are given. 3 refs.; 6 figs