Abstract: A draw out circuit breaker has a reduced partial discharge in insulation surrounding a primary stab bus. A circular disk plate on one end of the bus includes tapped inserts located at a radial separation distance from the bus. An insulator sleeve surrounding the bus is formed to encapsulate the tapped inserts. Raised embosses on the circular disk plate separate the end portion of the insulator sleeve by a gap distance from the inward facing surface of the disk plate. The increased gap distance reduces formation of a triple point region between the surface of the disk plate and the insulator sleeve, thereby reducing occurrence of partial discharges in the insulator sleeve near the gap.

Abstract: A draw out circuit breaker has a reduced partial discharge in insulation surrounding a primary stab bus. A circular disk plate on one end of the bus includes tapped inserts located at a radial separation distance from the bus. An insulator sleeve surrounding the bus is formed to encapsulate the tapped inserts. Raised embosses on the circular disk plate separate the end portion of the insulator sleeve by a gap distance from the inward facing surface of the disk plate. The increased gap distance reduces formation of a triple point region between the surface of the disk plate and the insulator sleeve, thereby reducing occurrence of partial discharges in the insulator sleeve near the gap.

Abstract: A draw out circuit breaker has a reduced partial discharge in insulation surrounding a primary stab bus. A circular disk plate on one end of the bus includes tapped inserts located at a radial separation distance from the bus. An insulator sleeve surrounding the bus is formed to encapsulate the tapped inserts. Raised embosses on the circular disk plate separate the end portion of the insulator sleeve by a gap distance from the inward facing surface of the disk plate. The increased gap distance reduces formation of a triple point region between the surface of the disk plate and the insulator sleeve, thereby reducing occurrence of partial discharges in the insulator sleeve near the gap.

Abstract: A sleeve for storing a disc shaped object, said sleeve comprising a first and second sleeve part, which are hingedly connected to each other by means of a hinge member, said sleeve parts comprise two flaps, folded towards each other along a fold line, said first and second sleeve part comprising a first and second circle segment shaped sliding groove, respectively located in such a manner that in a closed position of said sleeve, they extend along a quarter of a circle, said hinge member being located at a corner of said sleeve forming a middle point for said quarter of a circle, said sleeve further comprises a first and second connecting member, located in said first, respectively said second groove and connecting the sleeve parts to each other.

Abstract: A sleeve for storing a disc shaped object, said sleeve comprising a first and second sleeve part, which are hingedly connected to each other by means of a hinge member, said sleeve parts comprise two flaps, folded towards each other along a fold line, said first and second sleeve part comprising a first and second circle segment shaped sliding groove, respectively located in such a manner that in a closed position of said sleeve, they extend along a quarter of a circle, said hinge member being located at a corner of said sleeve forming a middle point for said quarter of a circle, said sleeve further comprises a first and second connecting member, located in said first, respectively said second groove and connecting the sleeve parts to each other.