BNA SF 6 Gas Load Break Switch

12-24-36 kV. / 630A

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 switch 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 system positioned at back side.Auxiliary contacts indicating the position of the main contacts and for the earthing switch are present.Operating mechanism can be charged manually by lever or optionally by motor.Charged mechanism has stored energy for closing and opening. Closing and opening functions can be done by the push-buttons or by the release coils.Fuse-trip system optionally can be equipped.Key type interlocks are possible SF6 Gas Load Break Switch can be optionally equipped with VB640 type hermetically sealed temperature compensated digital pressure indicator with two alarm contacts