Abstract: In one aspect, a pouch includes a first panel, a second panel, and a bottom gusset, wherein the first panel, second panel, and bottom gusset are formed of a polyester-based film structure and wherein the bending stiffness of the bottom gusset panel is less than or equal to 0.05 N mm. Each of the polyester-based film structures may be formed of a polyester-based polymeric composition comprising polybutylene terephthalate (PBT), polyethylene terephthalate (PET), or a blend from 0-100% by weight of PBT in PET. It is contemplated that each polyester-based film structure may comprise two or more film plies laminated to each other.

Abstract: In one aspect, a pouch includes a first panel, a second panel, and a bottom gusset, wherein the first panel, second panel, and bottom gusset are formed of a polyester-based film structure and wherein the bending stiffness of the bottom gusset panel is less than or equal to 0.05 N/mm. Each of the polyester-based film structures may be formed of a polyester-based polymeric composition comprising polybutylene terephthalate (PBT), polyethylene terephthalate (PET), or a blend from 0-100% by weight of PBT in PET. It is contemplated that each polyester-based film structure may comprise two or more film plies laminated to each other.

Abstract: In one aspect, a pouch includes a first panel, a second panel, and a bottom gusset, wherein the first panel, second panel, and bottom gusset are formed of a polyester-based film structure and wherein the bending stiffness of the bottom gusset panel is less than or equal to 0.05 N/mm. Each of the polyester-based film structures may be formed of a polyester-based polymeric composition comprising polybutylene terephthalate (PBT), polyethylene terephthalate (PET), or a blend from 0-100% by weight of PBT in PET. It is contemplated that each polyester-based film structure may comprise two or more film plies laminated to each other.

Abstract: A mechanical drive system for a vacuum capacitor is provided and includes a drive screw and a nut, wherein the nut is arranged in a housing of the vacuum capacitor, wherein the drive screw is screwed through the nut, wherein a first electrode is arranged on one side of the drive screw, wherein, by a rotation of the drive screw, the first electrode is movable relative to a second electrode, and wherein the nut is at least partially manufactured out of a plastic material.

Abstract: In a cooling system for a variable vacuum capacitor, a liquid is arranged inside a cooling reservoir, a first part of the reservoir is designed to absorb heat energy from first bellows of the variable vacuum capacitor, the first bellows being responsible for transporting electrical energy to a second electrode of the variable vacuum capacitor, a second part of the reservoir is designed to dissipate heat energy towards a cooling circuit, and heat pipes are arranged between the first part of the reservoir and the second part of the reservoir.

Abstract: A mechanical drive system for a vacuum capacitor is provided and includes a drive screw and a nut, wherein the nut is arranged in a housing of the vacuum capacitor, wherein the drive screw is screwed through the nut, wherein a first electrode is arranged on one side of the drive screw, wherein, by a rotation of the drive screw, the first electrode is movable relative to a second electrode, and wherein the nut is at least partially manufactured out of a plastic material.

Abstract: In a cooling system for a variable vacuum capacitor, a liquid is arranged inside a cooling reservoir, a first part of the reservoir is designed to absorb heat energy from first bellows of the variable vacuum capacitor, the first bellows being responsible for transporting electrical energy to a second electrode of the variable vacuum capacitor, a second part of the reservoir is designed to dissipate heat energy towards a cooling circuit, and heat pipes are arranged between the first part of the reservoir and the second part of the reservoir.