The performance parameters

structure and test of AC 800 kV SF6 tank MOA are introduced

which uses high performance resistors

internal core body structure like "Z" type to lower the height of the products.The arrester voltage and electric field distribution characteristics

internal insulation

mechanical strength are also studied.The maximum potential development of the uneven distribution of arrester factor 11.7%.The developed MOA have passed the lightning impulse withstand voltage test of 2 100 kV

switching impulse withstand voltage test of 1 550 kV

short-duration power frequency withstand voltage test of 960 kV and shell strength and transport test.The developed MOA has been applied in 750 kV power transmission project.