Gas-insulated switchgear assembly

A gas-insulated switchgear assembly for three-phase alternating current transmission comprising, for each phase:

• a first disconnecting switch connected to a first main bus bar;
• a first circuit breaker connected to the first disconnecting switch;
• a second disconnecting switch connected to the first circuit breaker;
• a third disconnecting switch connected to the second disconnecting switch;
• a second circuit breaker connected to the third disconnecting switch;
• a fourth disconnecting switch connected to the second circuit breaker;
• a fifth disconnecting switch connected to the fourth disconnecting switch;
• a third circuit breaker connected to the fifth disconnecting switch;
• a sixth disconnecting switch connected to the third circuit breaker on an end and to a second main bus bar on another end;
• a first connecting bus bar branched off between the second disconnecting switch and the third disconnecting switch, the first connecting bus bar connected to a first feeding line;
• and
• a second connecting bus bar branched off between the fourth disconnecting switch and the fifth disconnecting switch, the second connecting bus bar connected to a second feeding line;
• wherein:
• the first circuit breakers, the second circuit breakers and the third circuit breakers being arranged in such a manner that longitudinal axes thereof are in substantially parallel with one another in substantially one horizontal plane, the first circuit breakers for different phases, the second circuit breakers for different phases and the third circuit breakers for different phases being arranged side by side with one another;
• the first main bus bars and the second main bus bars being arranged substantially horizontally and substantially in parallel with each other at a height different from a height of the horizontal plane including the longitudinal axes of the circuit breakers, and in a direction different from a direction of the longitudinal axes of the circuit breakers;
• and
• at least two out of the longitudinal axes of the first circuit breakers, the second circuit breakers and the third circuit breakers being shifted in a direction different from the direction of the longitudinal axes, and at least two out of positions of the first circuit breakers, the second circuit breakers and the third circuit breakers in the direction of the longitudinal axes being arranged so as to be partially overlapped.