Thyristor welding machine
Hello! Please help me figure it out. There is a welding transformer on the torus. I want to assemble a rectifier and a control circuit. On the secondary side of the transformer there is a tap, the voltage is just suitable for powering the control circuit. But when connected to the network, protection is triggered. All circuit elements are in good condition. One thing remains - do I need a separate winding to power the control circuit?