Stationary induction apparatus

A stationary induction apparatus according to claim 1, wherein:nthe partial coil assembly comprises 4n partial coil assemblies disposed to be adjacent continuously, where n denotes a positive integer;on one end of the partial coil assembly, the plurality of partial coils belonging to a first partial coil assembly are connected to each other, and the plurality of partial coils belonging to a 4n-th partial coil assembly are connected to each other;the plurality of partial coils belonging to a (2+4k)th partial coil assembly and the plurality of partial coils belonging to a (3+4k)th partial coil assembly are connected by the at least one spool reference connection portion, where k denotes a positive integer of 1 to n−1 or zero, the spool reference connection portion connects the plurality of partial coils belonging to one of an adjacent pair of the adjacent partial coil assemblies to the plurality of partial coils belonging to another one of the adjacent pair of the adjacent partial coil assemblies, in order from partial coils closer to a spool;a connection between the plurality of partial coils belonging to a (4+4m)th partial coil assembly and the plurality of partial coils belong to a (5+4m)th partial coil assembly, where m denotes a positive integer of 1 to n−2 or zero, is performed by one of the following methods:(1) connecting by the at least one spool reference connection portion;(2) connecting by the at least one adjacent reference connection portion which connects the plurality of partial coils belonging to one of an adjacent pair of the adjacent partial coil assemblies to the plurality of partial coils belonging to another one of the adjacent pair of the adjacent partial coil assemblies, in order from partial coils closer to each other; and(3) connecting the plurality of partial coils belonging to the (4+4m)th partial coil assembly to each other, connecting the plurality of partial coils belonging to the (5+4m)th partial coil assembly to each other, and further connecting the (4+4m)th partial coil assembly and the (5+4m)th partial coil assembly to each other; andon another end of the partial coil assembly, the plurality of partial coils belonging to a (j−1)th partial coil assembly and the plurality of partial coils belonging to a j-th partial coil assembly are connected by the at least one adjacent reference connection portion, where j denotes an even number of 2 to 4n.

A stationary induction apparatus according to claim 1, wherein:nthe first surface contacts with an outer surface of one of the adjacent partial coils; andon the second surface of the inter-partial-coil supporting portion, there are a plurality of inter-partial-coil protrusions which contact with an outer surface of another one of the adjacent partial coils.

A stationary induction apparatus according to claim 1, wherein the plurality of inter-partial-coil protrusions disposed on the first surface and the second surface of the inter-partial-coil supporting portion are disposed to overlap across the inter-partial-coil supporting portion in a direction in which the partial coils are opposed to each other.