With the rapid development of China’s electric power industry

the appearance

performance and reliability of high voltage electrical apparatushas become increasingly demanding. The current spring operating mechanism for ZF11-252（L）-type SF6 gas insulated metal enclosed switchgear ZF11-252（L）ZF11-252（L） type GIS) is large

with high speed and hasserious impact on the switchgear body

so it brings some risks to the safe operation. In order to overcome these deficiencies

a new type of fast electric operating mechanism

which has compact structure

beautiful appearance and moderate speed

is developed. And it can provide a reliable guarantee for the product’s safe operation. In this paper

the working principles

the main parameter design and calculation of this electric operating mechanism are presented in detail.