On-load autotransformer

• Main Authors: ZHAN XIAOBIN, YU SHUI, LI CHUNNIAN, HE HAIJIANG, LI JUN, FU CONG, HU YIBO, NI ZHILI, NIE QIANG, NING HAORU, ZHU YI
• Format: Patent
• Language: Chinese; English
• Published: 10.01.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INDUCTANCES; MAGNETS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

The utility model relates to an on-load autotransformer, which comprises an iron core, comprising a core column and two side columns which are connected with each other, and the two side columns are located on the two opposite sides of the core column respectively. The number of the low-voltage windings is two, the two low-voltage windings are in one-to-one correspondence with the two side columns, and each low-voltage winding is wound on the corresponding side column; and the self-coupling winding is wound on the core column, and the on-load self-coupling transformer completes step-down or step-up output through the self-coupling winding. According to a traditional autotransformer, a low-voltage winding is only responsible for voltage stabilization and is not loaded, so that high-low impedance and medium-low impedance of the low-voltage winding are not required. Therefore, when the low-voltage winding is on load, the high-low impedance and the medium-low impedance are too small, and the short-circuit resista