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Introducing Dow Epoxy Systems for

Introducing Dow Epoxy Systems for. Electrical insulation – Transformers, switchgears, insulators, etc. 用于电气绝缘的双组分环氧浇注树脂系统. Electrical Insulations 电气绝缘. Production for Electrical Insulations 生产工艺 Vacuum casting 真空浇注 Casting resin transformers 干式变压器 Instrument transformers 电压电流互感器

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Introducing Dow Epoxy Systems for

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  1. IntroducingDow Epoxy Systemsfor Electrical insulation – Transformers, switchgears, insulators, etc. 用于电气绝缘的双组分环氧浇注树脂系统

  2. Electrical Insulations 电气绝缘 • Production for Electrical Insulations 生产工艺 • Vacuum casting真空浇注 • Casting resin transformers 干式变压器 • Instrument transformers 电压电流互感器 • Automatic Pressure Gelation 真空压力凝胶 • Insulators 绝缘子 • Bushings 各类套管 • Contacting box 触头盒 • Switchgears 固封极柱 • Gas insulated switchgear SF6 气体绝缘开关 • Vacuum Pressure Impregnation 真空压力浸渍 • Motors 马达 • Generators 电机 • Wires & coils 各类线圈等 The Dow Chemical Company

  3. Vacuum Casting Process The Dow Chemical Company

  4. Products by Vacuum Casting Distribution Transformers Instrument Transformers (Voltage & Current) 35kV Voltage transformers 35kV current transformers The Dow Chemical Company

  5. APG Process A: Mixing / dispersing machine B: APG equipment Product Mold Firstly, resin, hardener and filler were mixed and dispersed in A, and later inject the mix into B. After keeping 20 – 40 mins to demold and put the prototype into oven to postcure. The mold will change according products. The Dow Chemical Company

  6. Contact box Bushing 190 Insulator , 20kV 210 Insulator, 20kV Products by APG 24kV Switchgear 注：图中各类产品均使用陶氏System C6双组分环氧组合产品制成并通过了最终各类试验测试。 The Dow Chemical Company

  7. APG made Parts in… 固封式断路器 SF6气体绝缘负荷开关 (GIS) 复合式开关柜 The Dow Chemical Company

  8. VPI Process The Dow Chemical Company

  9. VPI and the Products The Dow Chemical Company

  10. C7 C710 P115 C5 C8 C6 E&E Products Portfolio Thermal / Current Indoor Voltage / Mechanical Outdoor

  11. Prefilled Systems • System P-115, up to 35kV • Excellent anti-cracking performance + high HDT • Designed for APG • Filler optimizations • System P-85, dry transformer, vacuum casting • EPR849 / EPH849, CY5848 / HY5848, etc. • Excellent flowability + dimension stability (toughness) • Designed for casting Why prefilled system? C1 (60% HGH400) C7 (60% HGH400) P-115

  12. Dow Casting Resin System –unfilled 无填料 • System-C2, high flexibility 高柔性 • Cast resin distribution transformers 玻璃布预浸干式变压器等. • Epoxy 环氧 / Anhydride 酸酐 (pre-catalyzed 预催化). • Excellent toughness 优异的柔韧性, low viscosity 低粘度。 • Cure 固化 4 h @80 ºC + 4 h @120 ºC + 8 h @140 ºC. Fig.1 Modulus (G’) and mechanical loss (tanδ) Fig.2 Dielectric constant (e’) and loss factor (tanδ) * Typical values, not to be construed as specifications * 典型值，不可视为产品规格。 The Dow Chemical Company

  13. Dow Casting Resin System –unfilled 无填料 • System-C3, mid flexibility 中柔性 • General indoor use, specially used for filament winding process. 户内纤维缠绕用。Epoxy 环氧 / Anhydride 酸酐 (pre-catalyzed 预催化). • Good flexibility and medium Tg 兼具良好的柔性和较高的耐热温度。 • Cure 固化 2 h @100 ºC + 2 h @120 ºC + 2 h @160 ºC. * Typical values, not to be construed as specifications * 典型值，不可视为产品规格。 The Dow Chemical Company

  14. Dow Casting Resin System –unfilled 无填料 • System-C5, mid flexibility 中柔性 • General indoor use, specially used for APG process. 户内真空压力凝胶用。 Epoxy 环氧 / Anhydride 酸酐 (pre-catalyzed 预催化). • Good flexibility and medium Tg 兼具良好的柔性和较高的耐热温度。 • APG Cure 固化 0.5 h @140 ºC + 10 h @140 ºC (post cure). * Typical values, not to be construed as specifications * 典型值，不可视为产品规格。 The Dow Chemical Company

  15. Dow Casting Resin System –unfilled 无填料 • System-C6, high flexibility优异的韧性 • General indoor use, specially used for APG process. 户内真空压力凝胶用。 Epoxy 环氧 / Anhydride 酸酐 (pre-catalyzed 预催化). • Excellent toughness 优异的柔韧性, low viscosity 低粘度 and medium 中等 Tg. • APG Cure 固化 0.5 h @140 ºC + 10 h @140 ºC (post cure). * Typical values, not to be construed as specifications * 典型值，不可视为产品规格。 The Dow Chemical Company

  16. Dow Casting Resin System –unfilled 无填料 • System-C9, mid flexibility 高柔性 • General indoor use, specially used for transformers . 户内干式变压器用。 Epoxy 环氧 / Anhydride 酸酐 / Flexibilizer 增韧剂 / Catalyst 催化剂 • Excellent toughness 优异的柔韧性, low viscosity 低粘度 and medium 中等 Tg. * Typical values, not to be construed as specifications * 典型值，不可视为产品规格。 The Dow Chemical Company

  17. Dow Casting Resin System –filled 预混的 • System-P-115, excellent toughness优异的韧性 • General indoor castings and APG. • Epoxy 环氧 / Anhydride 酸酐 (pre-filled & pre-catalyzed 预混的，预催化的). • Excellent fractural toughness with minor impact on Tg 最大限度的提高韧性而保持较高Tg • Cure 固化 4 h @100 ºC + 2 h @120 ºC + 2 h @160 ºC Fig.1 Modulus (G’) and mechanical loss (tanδ) Fig.2 Dielectric constant (e’) and loss factor (tanδ) * Typical values, not to be construed as specifications * 典型值，不可视为产品规格。 The Dow Chemical Company

  18. Dow Casting Resin System –filled 预混的 • System-S1, outdoor base 户外系统 • Outdoor transformers, switchgears, insulators 户外干式变压器, 开关及绝缘子等. • Epoxy 环氧 / Anhydride 酸酐 (pre-filled & pre-catalyzed 预混的，预催化的). • Excellent water resistance & electrical properties. 优异的耐水性和电气性能. • Cure 固化条件 2 h @100 ºC + 2 h @120 ºC + 2 h @140 ºC. System tested: Epoxy / Hardener Mix ratio: 100 / 90 parts (wt) * Typical values, not to be construed as specifications * 典型值，不可视为产品规格。 The Dow Chemical Company

  19. Dow Casting Resin System –filled 预混的 • System-S2, ultra high Tg 耐高温系统 • High thermal resistance insulators and bushings 高温套管及绝缘子. • Epoxy (预混的, 50 %) / Anhydride (pre-catalyzed 预催化的). • Excellent thermal & electrical properties优异的耐热性和电气性能. • Cure 固化条件 2 h @100 ºC + 2 h @120 ºC + 4 h @160 ºC * Typical values, not to be construed as specifications * 典型值，不可视为产品规格。 The Dow Chemical Company

  20. Dow Casting Resin System -unfilled • System-S3, latent 三组份, 潜伏型 • VPI applications, like coils, motors, etc 浸渍漆, 用于马达,电机线圈等. • Epoxy / Anhydride / Accelerator 环氧 / 固化剂 / 促进剂 • Very long pot life & fastcure during reaction 室温下大于三个月的可用时间. • Cure 固化条件 4 h @100 ºC + 2 h @120 ºC + 2 h @160 ºC The Dow Chemical Company

  21. Dow Casting Resin System –filled 预混的 • System-S4, flame retardant 阻燃型 • Indoor flame retardant casting 阻燃要求较高的绝缘浇注系统 • Epoxy 环氧 / Anhydride 酸酐 (pre-filled & pre-catalyzed 预混的，预催化的). • 阻燃性能 UL94 V-0 (6.4 mm). • Cure 固化条件 2 h @100 ºC + 2 h @120 ºC + 2 h @160 ºC * Typical values, not to be construed as specifications * 典型值，不可视为产品规格。 The Dow Chemical Company

  22. Ambient Cure Casting System – filled 预混的 • System-S5, ambient cure FR 阻燃的室温固化系统 • Ambient castings for capacitors, filters and transformer refinishing 室温固化, 用于修补. • Epoxy (预混的, 50 %) / Amine 胺类固化剂 • 阻燃性能 UL94 V-0 (6.4 mm). • Cure 固化条件 24 h @25 ºC + 2 h @70 ºC (+ 4 h @120 ºC if needed) System tested: Epoxy / Hardener Mix ratio: 100 / 11 parts (wt) * Typical values, not to be construed as specifications * 典型值，不可视为产品规格。 The Dow Chemical Company

  23. Dow Casting Resin System –filled 预混的 • System-S6, outdoor base 户外系统 • General outdoor use, specially used for filament winding process. 户内纤维缠绕用。 • Epoxy 环氧 / Anhydride 酸酐 (pre-filled & pre-catalyzed 预混的，预催化的). • Excellent water resistance & electrical properties. 优异的耐水性和电气性能. • Cure 固化条件 2 h @100 ºC + 2 h @120 ºC + 2 h @140 ºC. * Typical values, not to be construed as specifications * 典型值，不可视为产品规格。 The Dow Chemical Company

  24. Dow Casting Resin System –filled 预混的 • System-S7, outdoor base 户外高温系统 • General outdoor use, specially used for filament winding process. 户内纤维缠绕用. • Epoxy 环氧 / Anhydride 酸酐 (pre-filled & pre-catalyzed 预混的，预催化的). • Excellent water resistance & electrical properties. 优异的耐水性和电气性能. • Cure 固化条件 2 h @100 ºC + 2 h @120 ºC + 2 h @160 ºC + 1 h @180 ºC. * Typical values, not to be construed as specifications * 典型值，不可视为产品规格。 The Dow Chemical Company

  25. Dow™ Epoxy Portfolio • Dow™ Epoxy product finder • http://epoxy.dow.com/epoxy • DOW™ Epoxy Resins for Electrical Castings, Potting and Encapsulation, and Tooling Applications • http://epoxy.dow.com/epoxy/products/app/ec.htm • Liquid Epoxy Resins • Bisphenol-A Epoxy Resins • Bisphenol-F Epoxy Resins • Bisphenol-A/F Epoxy Resins • Modified Bisphenol-A Epoxy Resins • Modified Bisphenol-A/F Epoxy Resins • Epoxy Solutions and Solid Solutions • Epoxy Novolac Resins • Glycol Epoxy Resins • Flexible Epoxy Resins • Epoxy Curing Agents/Hardeners • Aliphatic and Polyamine The Dow Chemical Company

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