In a stationary induction apparatus, an inter-partial-coil insulating plate and a plurality of inter-partial-coil spacer insulators form a refrigerant flow path in conjunction with each other. A space having an inter-partial-coil insulation dimension for withstanding an abnormal voltage is formed be
In a stationary induction apparatus, an inter-partial-coil insulating plate and a plurality of inter-partial-coil spacer insulators form a refrigerant flow path in conjunction with each other. A space having an inter-partial-coil insulation dimension for withstanding an abnormal voltage is formed between a pair of partial coils. The inter-partial-coil insulating plate and the inter-partial-coil spacer insulators support both the pair of partial coils at an insulated state so as to maintain the inter-partial-coil insulation dimension. The insulators are arranged so as to be overlapped with each other in the direction in which mutually adjacent partial coils are opposed to each other.
대표청구항▼
1. A stationary induction apparatus having a partial coil assembly constituted of a plurality of partial coils disposed to be opposed and to overlap with each other, comprising: refrigerant flow paths formed on both sides of each of the plurality of partial coils; andan inter-partial-coil supporting
1. A stationary induction apparatus having a partial coil assembly constituted of a plurality of partial coils disposed to be opposed and to overlap with each other, comprising: refrigerant flow paths formed on both sides of each of the plurality of partial coils; andan inter-partial-coil supporting portion that is disposed between adjacent partial coils to cover an entire overlapping region between the adjacent partial coils, supports each of the adjacent partial coils in an insulated state so that a space is secured between the adjacent partial coils, and forms one of the refrigerant flow paths between the adjacent partial coils,wherein the inter-partial-coil supporting portion has a first surface that is opposed to one of the adjacent partial coils, and a second surface that is a surface opposite to the first surface and is opposed to another one of the adjacent partial coils,wherein on at least one of the first surface and the second surface of the inter-partial-coil supporting portion, there are a plurality of inter-partial-coil protrusions which are disposed to protrude from the at least one of the first surface and the second surface, and which are disposed with spaces for forming one of the refrigerant flow paths together,wherein between the inter-partial-coil protrusions of the inter-partial-coil supporting portion, there are formed a plurality of openings communicating to the one of the refrigerant flow paths for guiding a refrigerant to the outer surface of the partial coil, a plurality of openings cover the entire overlapping region between the adjacent partial coils. 2. A stationary induction apparatus according to claim 1, wherein: the 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. 3. A stationary induction apparatus according to claim 2, wherein: the 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. 4. A stationary induction apparatus according to claim 3, wherein between the inter-partial-coil protrusions of the inter-partial-coil supporting portion, there is formed an opening communicating to each of the refrigerant flow paths for guiding a refrigerant to the outer surfaces of the plurality of partial coils. 5. A stationary induction apparatus according to claim 2, 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. 6. A stationary induction apparatus according to claim 5, wherein between the inter-partial-coil protrusions of the inter-partial-coil supporting portion, there is formed an opening communicating to each of the refrigerant flow paths for guiding a refrigerant to the outer surfaces of the plurality of partial coils. 7. A stationary induction apparatus according to claim 1, wherein: the 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. 8. A stationary induction apparatus according to claim 7, wherein between the inter-partial-coil protrusions of the inter-partial-coil supporting portion, there is formed an opening communicating to each of the refrigerant flow paths for guiding a refrigerant to the outer surfaces of the plurality of partial coils. 9. 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. 10. A stationary induction apparatus according to claim 9, wherein between the inter-partial-coil protrusions of the inter-partial-coil supporting portion, there is formed an opening communicating to each of the refrigerant flow paths for guiding a refrigerant to the outer surfaces of the plurality of partial coils.
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이 특허에 인용된 특허 (8)
Damiani, Daniele; Laurenti, Adamo; Marabotto, Roberto; Perrella Segre, Mauro, Coil with superconductive windings cooled without cryogenic fluids.
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