1.Purpose:

 Provide over-voltage protection for neutral of 220 kV graded insulated transformers.

 2.Product features:

 (1)  Modular design, easy to choose type for different use.

 (2)  The mounting brackets adopt seamless steel pipes,better stability and beautiful appearance.

 (3)  Intelligent control units are equipped,electrical data can be uploaded via serial communications ports.

 (4)  Use limit design bases on severe weather every 50 years.

 (5)  High-voltage test equipment and test procedure ensure 100% delivery qualification rate.

 3.Models:

Notes:to increase an intelligent control unit, the letter “Z” can be added to the end of the original model,e.g. THT-TNP-110/1-Z.

 4.Installation:

The complete device is supported on the cement posts or steel supports which is usually provided by the tender. We can also supply the steel supports as an accessory.

 5.Schematic diagram

6.Typical products parameters table

Note: the above table is relating to the general parameters for your consideration, please let us know if you have any special requirements.