Big power thyristor series connection subassembly of high pressure

The utility model discloses a big power thyristor series connection subassembly of high pressure, include: thyristor group, arrester group, connecting piece and crimping piece, the thyristor that thyristor group establishes ties including the several, the arrester that arrester group establishes ties including the several. Each the thyristor with correspond the arrester passes through the connecting piece is parallelly connected, can realize each the independent overvoltage protection of thyristor, thus improve the stability and the security of subassembly. Be equipped with two screws on the arrester supporting shoe in the connecting piece, two the screw conduct the positive pole and the negative pole access point of subassembly are when needing the regulation during the operating voltage of subassembly, only need to select differently two screws that the arrester supporting shoe corresponds are as the access point, promptly through adjusting actual the series connection the figure of thyristor, the nimble re