Abstract: This invention involves composite embedded-pole and its operating principles, including an insulating cylinder which has upper and lower cavities, and one of its ends tightly connects a sealed cap. As for the upper cavity, there is an outlet block on the left end, a spacing-set pair of static conductive blocks which bond with each other in the middle, and a grounding block on the right. Parts of the left static conductive block inserts into the left of the lower cavity. The lead screw in the upper cavity is for rotary location with one end stretching out the sealed cap. The lead screw, spirally connects with moving contact set that matches with outlet block, static conductive block, and grounding block forming a 3-bonding-position. There is a vacuum interrupter in the lower cavity, whose static contact bonding with the left static conductive block, and the outer end of the moving contact flexibly couples with the left of the insulating pull rod.

Abstract: A “five-prevention” interlocking pole type high-voltage switchgear includes a pole bracket, embedded poles, and spring and earthing isolated switch operating mechanisms; every three poles are arranged in a row on the bracket, the spring operating mechanism is joined with the switch operating mechanism through the chamber door interlocking piece and mechanism interlocking piece; the chamber interlocking piece, mechanism interlocking piece and door lock plate are joined, the door lock plate is opposite the opening semi-axis pinch plate in the spring operating mechanism and the door lock plate is set with a door lock pin. Chamber interlocking piece movement is used to open or close the switch operating mechanism crank operation hole and corresponds to the start of close brake operation and limit brake of opening pinch plate in the spring operating mechanism and the limiting and opening of the opening semi-axis and cable chamber door in the spring operating mechanism.

Abstract: A “five-prevention” interlocking pole type high-voltage switchgear includes a pole bracket, embedded poles, and spring and earthing isolated switch operating mechanisms; every three poles are arranged in a row on the bracket, the spring operating mechanism is joined with the switch operating mechanism through the chamber door interlocking piece and mechanism interlocking piece; the chamber interlocking piece, mechanism interlocking piece and door lock plate are joined, the door lock plate is opposite the opening semi-axis pinch plate in the spring operating mechanism and the door lock plate is set with a door lock pin. Chamber interlocking piece movement is used to open or close the switch operating mechanism crank operation hole and corresponds to the start of close brake operation and limit brake of opening pinch plate in the spring operating mechanism and the limiting and opening of the opening semi-axis and cable chamber door in the spring operating mechanism.

Abstract: This invention involves composite embedded-pole and its operating principles, including an insulating cylinder which has upper and lower cavities, and one of its ends tightly connects a sealed cap. As for the upper cavity, there is an outlet block on the left end, a spacing-set pair of static conductive blocks which bond with each other in the middle, and a grounding block on the right. Parts of the left static conductive block inserts into the left of the lower cavity. The lead screw in the upper cavity is for rotary location with one end stretching out the sealed cap. The lead screw, spirally connects with moving contact set that matches with outlet block, static conductive block, and grounding block forming a 3-bonding-position. There is a vacuum interrupter in the lower cavity, whose static contact bonding with the left static conductive block, and the outer end of the moving contact flexibly couples with the left of the insulating pull rod.