Switching transformer is one of core components of switching power supply, playing a role of power transmission and electronic isolation. compared with industrial frequency transformer.
Switch transformer has many advantages such an high unit power density, high efficiency, small size, low weight and low cost .In this era with popular theme of environment protection and energy saving, it is a trend that industrial frequency transformer is being superseded by switching transformer, so it is bound to be widely used.
The conventional performance index |
| Core model | Mounting structure(mm) | Electric property |
| Length | Width | Height | Array pitch | Insulation | Power(w) | Input/output voltage |
| EI28 | 16.5~34 | 14~26 | 15.5~31 | 10~23 | 3KV | 6~30 | 0.1-500V |
| EI35 | 10.5~40 | 10.5~36 | 11~7 | 7.5~26 | 3KV | 2.5~60 | 0.1-500V |
| EI41 | 13.5~30.5 | 13.5~30.5 | 7~16.5 | 13.5~26.3 | 3KV | 4~25 | 0.1-500V |
| EC | 35~40.5 | 43.5~49 | 27.5~31.5 | 25~35.5 | 3KV | 35~45 | 0.1-500V |
| ER | 15-37 | 12~29 | 7~35 | 16~25 | 3KV | 8~40 | 0.1-500V |
| PQ | 21-51 | 14-44 | 18-54 | 20.5~45.5 | 3KV | 15~150 | 0.1-500V |
1. reference and quoted standard
GB19212.5-2006specific requirement of general service isolation transformer
GB19212.7-2006specific requirement of general service safety isolating transformer
GB19212.18-2006specific requirement of Switch type power transformer
2. environment condition
Work temperature:-40ºC~+70ºC
Storage temperature:-40ºC~+80ºC
Relative humidity: Relative humidity≤95%,year average humidity≤75%
ambient pressure:63.0kPa~106.0kPa(below 4000m altitude
3.life-span requirement:
At least 10years if it is used in specified environment.
ZhuHai DaHang was established in 2005. In 2014 the company name changed to ZhuHai DaHang Automation Equipment Co., Ltd with 10 million RMB registered capital, it is a branch of Zhuhai KangDing Electronics Co., Ltd which is a listed company (Stock Name: K. D Electronics, Stock Code: 830928).
Zhuhai Dahang is an integrated high-tech enterprise which includes research and development, production, sales and service in the industry of weight sorting, check weight, non-standard automatic technology and equipment with 10 year industry experience.
Core Competitivenes:
1. Leader brand in industry, occupied 80% of Chinese marketing
Dahang equipment widely be used many fields and were validated by many leading enterprises, Dahang have the largest and most stable customers resource in China, market share and excellent rate were the first one in industry, Dahang occupied 80% of Chinese marketing
2. The biggest professional research center and production base
Zhuhai Dahang have the strongest team of technology research and development in domestic, including the general engineer Mr. Yangcheng who is the leader of online weighing industry reported by CCTV10. Dahang is SGS supplier passed the SGS authentication, existing plant area of 3000 square meters.
3. Technology leading in industry, The first one of several technical indicators in domestic
Zhuhai Dahang Self-help develop unique dynamic weighing control system with high stability andpracticability. The weighing sorting accuracy can reach ± 0.05g, sorting speed can reach 200 times/min, the top sorting rank can reach 16 levels, the technical indicators always keep the first position in domestic industry.
4. Inventing patents
Zhuhai Dahang got 9 Technology Licensing Patents and 4 Computer Software Copyrights. Dahang invented
Seafood Weight Sorting Machine and Rotating Disc Weight Sorting Machine. Dahang is the inventor of weigh
Sorting company special reported by CCTV10 scientific channel.
5. Strong Scientific research support, cooperate with 3 high universities
Zhuhai Dahang cooperated with 3 Chinese high universities to sure strong research support, including Jilin University of Electric design and research Institute, Beijing University of Aeronautics and Astronautics of Mechanical Engineering and Automation Institute, Zhangjiajie Aeronautical Engineering Institute of Aviation electrical and information engineering department.
