Q-Tran manufactures toroidal transformers using the highest quality, grain oriented, silicone steel. Our annealing process is with a belt fed 3-phase annealing oven which ensures that each and every core reaches the same temperature; therefore, they all have the same electrical properties. We insulate the core with the best electrical resin and add an auto-resettable thermal breaker to the core (hottest place on a transformer). This breaker protects the transformer from being overloaded or from DC leakage into the toroid.
After the core leaves the Q-Tran core department, it moves to our winding department where our machine operators pull the taps that create our multi-voltage (or boost taps) on the primary side and which gives us our secondary voltages of 11, 12, 13, 14, or 15, or 22, 24, 26,28, or 30 volts. After the taps are pulled the toroids go to the welding department. Q-Tran DOES NOT use soldering to weld its lead wires to solid copper wires. We use the same high-frequency welding method used in aerospace, automotive and medical fields. This creates a clean work environment free of toxins and produces a weld that we feel confident putting the trusted Q-Tran brand on. We run very high voltage through each unit revealing any defects. Defects are stripped down or thrown out. The process is complete after we insulate the wire, making sure there is a physical barrier separating the primary winding from the secondary windings. We then repeat the process on the secondary side of the unit and do a final test, sending more high-voltage through each unit.