The invention relates to a low-temperature-resistant dry-type
transformer and a high-
voltage coil manufacturing method, a high-
voltage coil comprises a coil inner insulator, an
air channel and a coil outer insulator, and multiple
layers of electromagnetic wires are wound between the coil inner insulator and the
air channel inner insulator and between the
air channel outer insulator and the coil outer insulator. An interlayer insulator is arranged between every two adjacent
layers of electromagnetic wires, end insulators are arranged at the two ends of the high-
voltage coil, the electromagnetic wires are fixed by pouring low-temperature-resistant
epoxy resin, and each of the coil inner insulator and the coil outer insulator comprises multiple
layers of round-edge gridding cloth. The end insulation comprises end insulation gridding cloth and a first
glass fiber continuous felt wrapping the end insulation gridding cloth from the outer side, the interlayer insulation comprises multiple layers of interlayer gridding cloth, a second
glass fiber continuous felt is arranged between every two adjacent air channels, and a coil panel is arranged on the front side of the high-voltage coil. And panel filling gridding cloth is arranged between the coil panel and the outer
diameter surface of the coil. The device can adapt to low-temperature and severe-cold environmental conditions, and heat preservation cotton and a heating device do not need to be additionally arranged.