Producer information
Company:
China Electrical Equipment Group |
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Address:
88, Shengtai Road, Jiangning Economic and Technology Development District, Nanjing, Jiangsu, China (Mainland) |
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Phone:
+86-25-83275363 |
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Semi-Enveloped Dry Type Power Transformer
The low-voltage coil is of foil winding structure; its layer insulation and overhanginsulation adopt Nomex insulation material. Moreover, the copper bar and copperleads foil are shaped by VPI vacuum pressure impregnation, high temperaturebaking and solidification upon the overall baking of coil by way of argon-arc weldingwith special equipment. Compared with SG10, SGRB10 features higher mechanicalstrength, less axial stress, more beautiful figure, less fabrication work hourand is free from helix angle.The high-voltage coil is of multi-layer cylinder type longitudinal multi-gas passagestructure. It uses NOMEX paper wrapping with oxygen-free flat copper wire forconductor and NOMEX for layer insulation, and uses grade-H molded insulation materialfor overhang insulation. Its surface is wrapped with multi-layer NOMEX paper,upon the overall baking; the coil is shaped through VPI vacuum pressure impregnation,high temperature baking and solidification. Comparing with SG10, ithas higher mechanical strength, equivalent heat radiation effect and better dustproofcapability.The transformer body adopts square-tube clamping pieces, stainless steel drawplatepress-nail structure, whereas the high voltage lead is of 10kV crosslinking cablecoupling, and the whole transformer surface is coated with special water-proofmaterial to form a dustproof, damp proof and antifouling overcoating. Comparedwith SG10, SGRB10 has more reliable overall stress, better humidity resistancecapability and safer power utilization.
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