Switchgear

Switchgear comprising:

• a housing that contains a circuit breaker chamber, a busbar chamber, a cable chamber, a grounding device actuator chamber, and a control chamber, which are partitioned by a grounded metal plate;
• a vacuum circuit breaker that is disposed in the circuit breaker chamber;
• a busbar that is disposed in the busbar chamber and connected to the vacuum circuit breaker through a conductor;
• a cable that is disposed in the cable chamber and connected at one end to a load side;
• and
• a grounding device that is operated by a grounding device actuator disposed in the grounding device actuator chamber, connected to the vacuum circuit breaker through a conductor, and connected to the other end of the cable;
• wherein the busbar is formed by a solid-insulated busbar;
• wherein the conductor connecting the vacuum circuit breaker to the busbar and the conductor connecting the vacuum circuit breaker to the grounding device are both formed by a solid-insulated conductor;
• and
• wherein at least the circuit breaker chamber and the grounding device are pressurized to a predetermined pressure.