Electromagnetic Compatibility Department is mainly responsible for development, production and selling of electromagnetic compatibility products. The products are different kinds of group pulse suppressor, power filter, EMI absorber and shielding materials which are all applied to civil and military field. We also provide the electromagnetic compatibility technology for clients and transformation plan and design. We have many corporation labs, the products ranges industries such as telecommunication, home appliances, measurement instruments, power and machine tools etc.

Our advantages:
 The products are approved by ccc, its security is ensured.
 We have rich anti-interference products including electric dope, shielding adhesive tape, ventilation glass window, reed and metal web etc.
We have cooperation with many important labs in the country in different kinds of industries such as electronic, telecommunication, home appliances, measure and power for winning the test time for the clients.

We will sincerely solve the magnetic interference problems of the product in your office under the principle of service as our main task and product as the most important. In order to ensure the quality of product and services, ISO9001 quality system is followed during the whole production and process.

　

Naming methods of filters of the company:
     D XX X XX - X
     |  |  |  |      |
     |  |  |  |      |_____Special required code
  |  |  |  |      
     |  |  |  |_________Code of shell(Such as words and number
  |  |  | 
     |  |  |____________Types of power filter(L, Y, Z, T, S)
  |  |
     |  |_______________ Maximum current through power filter
 |_________________Product code

Explanation of the types: Y stands for group pulse suppressor, L stands for normal AC power filter, Z stands for direct current filter; T stands for military filter, S stands for three phase filter.

Explanation of code of shell: C stands for needle type of external structure, Z stands for socket type of external structure; Y stands for line direction of external structure. H stands for welding pieces of external structure. L stands for bolt type of external structure.

Explanation of filters selection
1. Defining the purpose for industry or military
2. Defining the requirements of working voltage, working current, voltage resistance value, current leakage and size of metal shell.
3. Defining if it needs to suppress bu group pulse etc.

Cautions of filter using:
1. Surface of metal shell and shell of filter should be ensured to touch properly and without the impurities on it for ensuring the earthing resistance the minimum.

2. Input line and output line of filter should be separated in a certain distance and should not be established parallel, in case of effect of filter decreasing.
3. Twisted pair cable is selected for the line of filter which can remove the high-frequency interference signal effectively.  
4. Installation position of the filter should be at the open of the power, which can shorten the length of the input line in the machine box and decrease the radiation interference.