the type of dry-type transformer
(1) the current market with Europe as the representative of the (epoxy) resin casting dry-type transformer (CRDT) and the United States as the representative of the immersion paint type (open) dry-type transformer (VDT) two types.
(2) CRDT high mechanical strength, short-circuit resistance, moisture and corrosion resistance is particularly good, and the local discharge is small, long operating life, low loss, the enterprise design and manufacturing experience, the product has a high degree of safety and reliability and good environmental protection characteristics, in particular, the operating performance is very good.
(3) VDT has environmental protection, strong overload capacity, temperature resistance, production flexibility and other advantages.
(4) According to the transformer industry statistics, the resin vacuum casting dry change (CRDT) in China's market share of more than 90%.
VDT transformer with insulating materials
(1) wire wrapping: NOMEX, 3M, Yantai
(2) foil winding interlayer insulation: pre-preg DMD, NOMEX, NMN, NHN, glass cloth GHG, PET, PEN
(3) Spacers: 993, 994, Rauschert rods, ceramics, diphenyl ether, fiberglass sheets
(4) Insulation tube: glass fiber board, diphenyl ether, 993, 994
(5) Phase Separator: Fiberglass Plate, Rousselot FHT, 993, 994
(6) High and low voltage insulation: diphenyl ether, Rosyth FHT,993,994
(7) End Insulation: Rubber, Diphenyl Ether, End Seals
(8) Leads: crumpled paper, heat-shrinkable tubing
(9) Core clamp: NOMEX
(10) Insulation paint
CRDT dry-type transformer insulation materials
(1) Wire wrapping: NOMEX, 3M, Yantai
(2) Foil winding interlayer insulation: prepreg DMD, NOMEX, NMN, NHN, glass cloth GHG, PET, PEN
(3) Spacers: 993, 994, Rauschert rods, ceramics, diphenyl ether, fiberglass panels
(4) Insulation cylinder: glass fiber board, diphenyl ether, 993, 994
(5) Interphase partition: Fiberglass board, Rousselot FHT, 993,994
(6) High and low voltage insulation: diphenyl ether, Rosyth FHT,993,994
(7) End Insulation: Rubber, Diphenyl Ether, End Seal
(8) Leads: crumpled paper, heat-shrinkable tubing
(9) Core clamps: NOMEX
(10) Insulating varnish
