GAS-INSULATED SWITCHGEAR WITH CLOSED CUBICLES Russian patent published in 2009 - IPC H02B13/35 

FIELD: electricity.

SUBSTANCE: switchgear is multiphase one and comprises gas-filled modular cabinet for each phase. The modules are represented as at least mainly horizontal busbar (51, 52), power switch (10) and two combined disconnecting switches (71, 72, 73) of the same design serving for disconnecting and earthing. The first of the combined disconnecting switches (71) comprises busbar (51) segment and is connected between the busbar (51) and the first current lead (11) of the power switch (10). The second combined disconnecting switch (73) is connected between the terminal (60) or next installation busbar and the second current lead (12) of the power switch (10). The combined disconnecting switches (71, 72, 73) are mounted so that two drive mechanisms (81, 82, 83) used for their maintenance are aligned in the same direction. The drive mechanisms of the combined disconnecting switches are aligned in one direction and the installation parts connected to the combined disconnecting switches are aligned in the opposite direction. The state of the drive mechanisms (81, 82, 83) and the state of the combined disconnecting switches (71, 72, 73) keys is easy to be seen by maintenance personnel.

EFFECT: increasing device compactness.

25 cl, 8 dwg