公开(公告)号：EP1829077B1

公开(公告)日：2008-03-19

申请号：EP04802392.3

申请日：2004-12-24

Applicant: ABB Technology AG

Inventor： SCHOENEMANN, Thomas ,  KIEFER, Jochen ,  HUGUENOT, Patrick ,  CLAESSENS, Max ,  GROB, Stephan ,  YE, Xiangyang

IPC: H01H33/88

CPC classification number: H01H33/74 ,  H01H33/88 ,  H01H2009/526 ,  H01H2033/888

Abstract: The invention relates to an electrical switchgear (1), especially a generator switch (1), and a method for improved switching gas cooling. According to the invention, gas jets (12) are formed by a nozzle body (10) in the exhaust region (7), said gas jets are directed towards a deflector (14, 140), and are then subjected to turbulence. Said deflector forms part of the switching chamber housing (3) and has a high heat capacity and/or heat conductivity, such that the switching gas is cooled in a highly efficient manner by turbulent convection of the switching gas turbulence (13) on the deflector (14, 140). Forms of embodiment include the shape of the deflector (14, 140) and the nozzle body (10). The invention is advantageous, inter alia, in that the switching chamber housing (3) is protected from hot gases, the cooling of the switching gas is improved, and the switching capacity is increased.

公开(公告)号：EP3087578A1

公开(公告)日：2016-11-02

申请号：EP14828031.6

申请日：2014-12-22

Applicant: ABB Technology AG

Inventor： MANTILLA, Javier ,  YE, Xiangyang ,  DHOTRE, Mahesh ,  COSSALTER, Oliver ,  GROB, Stephan

IPC: H01H33/70 ,  H01H33/22 ,  H01H33/74

CPC classification number: H01H33/22 ,  H01H33/7015 ,  H01H33/74 ,  H01H2033/888

Abstract: An electrical switching device (1) is filled with a dielectric insulating medium comprising an organofluorine compound, in particular a fluoroether, a fluoroamine, a fluoroketone or a fluoroolefin, and comprises at least an arcing contact arrangement with a first arcing contact (4a) and a mating second arcing contact (4b). At least a first intermediate volume(7) is provided downstream from the first arcing contact (4a), and/or at least a second intermediate volume (8) is provided downstream from the second arcing contact (4b). The intermediate volumes (7, 8) are for intermediate pressure enhancement and exhaust gas jet formation for turbulent convective heat transfer to metal walls (7b, 8b) of the exhaust system.In embodiments, the first and/or second intermediate volume (7, 8) is delimited by at least one moveable wall (14a, 14b)arranged transversally to the longitudinal axis (z) and shiftable parallel to it by an actuation device(15, 16, 17).

Abstract translation: 电气开关装置（1）填充有包含有机氟化合物，尤其是氟代醚，氟代胺，氟代酮或氟代烯烃的介电绝缘介质并且包括至少一个具有第一电弧触点（4a）的电弧触点装置和 配合的第二电弧触点（4b）。 至少第一中间容积（7）设置在第一电弧触头（4a）的下游，和/或至少第二中间容积（8）设置在第二电弧触头（4b）的下游。 中间体积（7,8）用于中间压力增强和废气喷射形成，用于湍流对流传热至排气系统的金属壁（7b，8b）。在实施例中，第一和/或第二中间体积（7,8） 8）由至少一个横向于所述纵向轴线（z）布置且可通过致动装置（15,16,17）平行移动的可移动壁（14a，14b）限定。