Product Introduction

　　The switchgear should meet the relevant requirements of GB3906-1991"3-35 kV AC Metal Enclosed Switchgear"standard,consisting of two main parts:the cabinet body and the circuit breaker,with functions such as overhead incoming and outgoing lines,cable incoming and outgoing lines,and busbar connection.The cabinet consists of a shell,electrical components(including insulation),various mechanisms,and secondary terminals

　　Composed of sub and connecting lines,etc

　　Common classification methods include:12

　　*According to the main wiring form of the switchgear.Bridge connection switchgear,single busbar switchgear,double busbar switchgear,single busbar segmented switchgear,double busbar with bypass busbar switchgear,single busbar segmented with bypass busbar switchgear.

　　*According to the installation method of the circuit breaker.Fixed switchgear and movable(handcart)switchgear.

　　*According to the cabinet structure.Metal enclosed interval switchgear,metal enclosed armored switchgear,metal enclosed box type fixed switchgear.

　　*According to the installation position of the circuit breaker handcart.Floor standing switchgear and mid mounted switchgear.

　　*According to the different insulation media inside the switchgear.Air insulated switchgear and SF6 gas insulated switchgear.

　　Construction and installation

　　1)The installation of complete cabinets should meet the following requirements:

　　(1)Mechanical and electrical locking should operate accurately and reliably.

　　(2)The centerline of the moving contact and the stationary contact should be consistent,and the contacts should be in close contact.

　　(3)The switching contacts of the secondary circuit auxiliary switch should act accurately and have reliable contact.

　　(4)The lighting inside the cabinet is complete.