Single-pole insulating cylinder and single-pole arc extinguishing chamber and load switch using the single-pole insulating cylinder
A technology for insulating cylinders and interrupters, which is applied in the field of single-pole insulating cylinders, single-pole interrupters and load switches. It can solve the problems of mutual influence between three phases, and achieve the effect of ensuring the insulation requirements between phases and ensuring reliability.
Active Publication Date: 2019-03-15
PINGGAO GRP +2
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Problems solved by technology
[0004] The object of the present invention is to provide a single-pole insulating cylinder to solve the problem of mutual influence between the three phases when the active load is broken and the short-circuit current is closed due to the housing in the prior art using a three-phase common box structure; The object of the present invention is also to provide a single-pole arc extinguishing chamber and load switch using the single-pole insulating cylinder
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[0032] Examples of load switches are Figure 1~Figure 12 As shown, it includes three-phase single-pole arc extinguishing chambers with the same structure arranged side by side along the front and back directions, and each phase of the single-pole arc extinguishing chamber includes a single-pole insulating cylinder 1 and a moving contact installed on the single-pole insulating cylinder 1 System 2 and static contact system 3, the single-pole insulating cylinder 1 includes a cylinder body 11 whose axis extends in the vertical direction, the upper end of the cylinder body 11 is provided with an upper mounting plate 17 for installing the moving contact system 2, and the lower end of the cylinder body 11 A lower mounting plate 18 for mounting the static contact system 3 is provided, and both the upper mounting plate 17 and the lower mounting plate 18 are provided with through holes.
[0033] The outer peripheral surface of the cylinder 11 is provided with an outwardly extending boss...
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The invention provides a one pole insulating cylinder, one pole arc-extinguishing chamber adopting the same and load switch. The load switch comprises three phase one pole arc-extinguishing chambers that are arranged side by side in a front and back direction; each one pole arc-extinguishing chamber comprises the one pole insulating cylinder, the one pole insulating cylinder comprises a cylinder body, an upper end of the cylinder body is provided with an upper installation plate used for installing a moving contact head system, a lower end of the cylinder body is provided with a lower installation plate used for installing a static contact head system, the upper and lower installation plates are provided with via holes, and an outer peripheral face of the cylinder body is provided with an outward protruding boss which is fixedly connected with a gas box of a ring network cabinet. The moving contact head system and the static contact head system are installed via the upper and lower installation plates, the load switch and the gas box of the ring network cabinet are fixed via the boss, three phases are separated from each other via the independent type one pole insulating cylinder, requirements for insulation between phases can be met, a problem that the three phases affect each other in a three phase common-case structure when an active load is switched off and a short-circuited current is switched on, and reliability of switch-off and switch-on of the load switch is ensured.
Description
technical field [0001] The invention relates to a single-pole insulating cylinder, a single-pole arc extinguishing chamber and a load switch using the single-pole insulating cylinder. Background technique [0002] In recent years, the inflatable load switch has high reliability due to the use of sulfur hexafluoride gas with good insulation performance as the arc extinguishing or breaking medium, and is especially suitable for outdoor ring network cabinets and prepackaged boxes of secondary power distribution systems. In the type substation, it can realize maintenance-free and not be affected by the external environment. The authorized announcement number is CN205303298U, and the Chinese utility model patent whose authorized announcement date is 2016.06.08 discloses an indoor AC high-voltage sulfur hexafluoride load switch, which includes a housing composed of an upper cover and a lower cover sealed and installed. Epoxy resin three-phase common box structure, the casing is f...
Claims
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IPC IPC(8): H01H33/53H01H33/72
CPCH01H33/53H01H33/72
Inventor 费翔潘明杨芳祁海洋张永辉王松杨锐
Owner PINGGAO GRP