1, An overview of the
1.1 KYNl8A - 12 indoor communication armoured move open metal-enclosed

switchgear (hereinafter referred to as the switch cabinet).Of type of vacuum 

switchgear, vacuum switch mainly choose ZN22B - 12 vacuum circuit breaker, 

can also with ZNl2-10 3 of the vacuum circuit breaker and Siemens af, 3 ah 

vacuum circuit breaker. 
1.2 this product conforms to the GB3906-91 "3-35 kv ac metal-enclosed 

switchgear" DL404-91 "indoor communication switch cabinet order technical 

conditions" and IEC298 ac metal-enclosed switchgear and control equipment, 

such as standard.Suitable for 3 to 10 kv ac three-phase 50 hz single busbar in

the power system for receiving and distribution of electrical energy.Can be 

widely used in various types of power plants, substations, and industrial and 

mining enterprises.This product is reliable installation (not recommended) and without walls.

4, can be removed parts
4.1 can remove the components within the switchgear. 
4.4.1 positioning: positioning state can be removed parts inside ark of a stable 

state, when in this state, can remove the components of the circuit breaker 

can be installed on closing or break-brake operations;Feed mechanism of crank 

pin was closed, can remove the parts can't move.Conditions for remove the 

positioning of parts in the work location and test (store) position only.The 

realization of the positioning state and lifted, are achieved by the rotation of 

the key chain. Place in positioning, key chain can be pulled out. 
4.1.2 mobile status: mobile state can be removed parts inside ark of a temporary 

state.In this state, can remove the components are installed on the circuit breaker 

can not operate, feed mechanism crank pin open, can be removed parts in the enclosure 

movement between test position and work location.At this point, the key chain can't pull out. 
4.2 to move the location of the components in the switch cabinet. 
2 work location: this is to remove the components inside ark of a state of positioning.

In the work place, switchgear on the main circuit, auxiliary circuit is switched on. 
4.2.2 test position: this is can be removed parts inside ark of a state of positioning.

In the test position, switch cabinet on the secondary circuit, but the primary loop disconnect, 

and dynamic and static contact is separated by metal curtain plate. 
Holdings store location: if can remove the components inside ark test position again to cut off 

the auxiliary circuit, can remove the parts is in storage location.