Class H Unfilled Epoxy Resin System for Dry-Type Transformers

Company profile of Tengde group.

Jiangxi Tengde Industrial Co., Ltd. owned more than five industrial companies, the production workshops mainly located in Jiangxi Province of China, the total area is about 200,000 square meters, which has been engaged in the R&D, production, and sales of insulating materials, electrical materials and other products. Tengde and all of its subsidiaries have obtained ISO9001:2015 international quality system certification, ISO14001 environmental system certification, Occupational Health and Safety Management System Certification, UL certification and a number of utility models and national invention patents. Main products include: Class H dry-type transformer casting resin, indoor and outdoor transformer resin, insulation resin, iron core paint resin, room temperature resin, mold release agent, etc. At present, the products account for 50% of the domestic sales, and offices are set up in China and other countries. In the future, the company will reach deeper cooperation with well-known domestic enterprises as JST, Siemens, etc. It is expected that dry-type transformer and transformer resin market will occupy 75% of the domestic market share, and continue to expand overseas market, such as: Germany, Russia, Dubai, and the year-on-year sales growth is 20%. The company has reached the target of annual output value of  600 million. To meet the needs of enterprise development, ensure the core competitiveness of the company, improve product performance, 10 million has been invested to build a R & D center with the area of 2116 square meters, including more than 20 members with the title of doctor, master, senior engineer, intermediate or above professional titles, and a multi-disciplinary organic complementary, professional R & D team is established. Tengde seized the opportunity of the era and set up a number of subsidiaries in 2015, including Jiangxi Tengde, Hongte, Jinteng, Tengrui, Juchuang, Jingying, Tengyue, Tenghui, Coil Business Unit, etc.




TD-9006AB 

Resin : Hardener/Curing Agent: 100 : 80 PBW

Based on Bisphenol A/F, liquid, hot-curing casting resin system suitable for Class H dry-type distribution transformers with good electrical and mechanical end-propertie

·Very low initial mix viscosity, can adopt the high filler conten
·Excellent mechanical and curing characters
·Good crack resistance properties
·Class H according to IEC 60085

TD-9006A  Modified, Solvent-free, medium viscosity epoxy resin
TD-9006B  Liquid, modified anhydride curing agent


Conventional vacuum casting 80-100oC

Demoulding times (depending on mould temperature and casting volume)  

Conventional vacuum casting 4 - 8 h

Cure conditions (minimal postcure)

Conventional Vacuum Casting        4h at 80°C + 10h at 130°C or
4h at 80°C + 6h at 140°C