● Function
It is used for transformer protection.
This unit usually equips with a three-position load switch with SF6 insulated performance (CKFL-S), a set of fuse and a set of auxiliary earthing switch. It has the double spring operating mechanism which with the function of automatic tripping for fuse fusing. Only when the load switch is at the position of earthing, operator can access cable compartment. Its position indicating device meets the standard of IEC60129A2 (1996) and relevant national standards. Operator can check whether the switch is in opening / earthing status from the watch window of low voltage compartment. Meanwhile, the operator can also check the cable connection and fault indicator from the watch window of the enclosure front door when device operates. (If selected this parts)
● Standard Feature
Upper part of the unit
---- three-position load switch
---- operating mechanism
---- enclosure for busbar compartment
---- integrated low voltage compartment
---- interlocking device
---- fuse tripping device with capacitive voltage indicator
---- busbar
Lower part of the unit
---- earthing switch
---- fuse base
---- enclosure for cable compartment
---- bottom plate for cable support brackets
● Optional Feature
---- integrated capacitive voltage indicator or inserting interface for portable capacitive voltage indicator
---- auxiliary contact for each position : 2pcs always opening + 2pcs always closing
---- electric operating mechanism
---- current transformer
---- voltage transformer
---- channel for cable controlling
---- channel for pressure releasing
Product Tags:
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Air Insulated Switchgear , Substation Switchgear Fuse Combined Power Transmission Applied Images
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