The invention discloses a knife-gate type three-position switch shielded
solid insulated
ring network cabinet, which includes a cabinet
busbar, a cabinet body, a switch unit, a cable outlet and a
current transformer, and the switch unit and the
current transformer are installed on the cabinet. The switch unit includes a
circuit breaker and a three-position switch. The
circuit breaker includes an incoming cone conductor, a soft connection, a
circuit breaker insulation pull rod, a
vacuum interrupter, a conductor at the static end of the
interrupter, and a circuit breaker mechanism. The position switch includes isolating static contacts,
knife switch components, isolating contact seats, outlet cone conductors, three-position insulating pull rods, connecting rods, grounding contacts and isolation-grounding mechanisms, the
inlet cone conductors,
vacuum arc extinguishing The static end conductors of the chamber, the arc extinguishing chamber, and the outlet cone conductors are all poured into the shielded
solid-sealed pole. In the invention, the
knife switch assembly is integrated into the shielded
solid-sealed pole, which reduces the problem of insufficient
assembly due to small space, has high product reliability, and improves production efficiency.