BNA SF 6 Gas Disconnector
12-24-36 kV. / 630-1250A
The main contacts of the disconnector are in the epoxy resin enclosure which is filled with 1.5 bar SF6 gas and this sealed pressure system guaranteed for its life.
The disconnector contacts can be in one of two positions:closed/open.
The earthing switch is outside of the enclosure,and its position clearly and safely can be observed directly.Its operation is interlocked with the mechanism of the main contacts.
The safety of the gas filled enclosure is secured by the membrane systems positoned at back side.Auxiliary contacts indicating the position of the main contacts and for the earthing switch are present.
Key type interlocks are possible.
Sf6 Gas Disconnector can be optionally equipped with VB640 type hermetically sealed temperature compensated digital pressure indicator with two alarm contacts