公开(公告)号：US20190172668A1

公开(公告)日：2019-06-06

申请号：US16253367

申请日：2019-01-22

Applicant: ABB Schweiz AG

Inventor： Bernardo Galletti ,  Manuel Gotti ,  Markus Bujotzek ,  Martin Seeger

IPC: H01H33/70

CPC classification number: H01H33/7023 ,  H01H33/91

Abstract: A gas-insulated high-voltage switching device which includes an arcing contact arrangement having a first arcing zone member and a second arcing zone member that are movable relative to one another along an axis. An auxiliary nozzle surrounds at least a part of a second arcing contact unit and has an auxiliary nozzle throat having an axial extension and allowing passage at least of an end of the first arcing contact unit. A main nozzle throat has an axial extension sideways of the auxiliary nozzle throat and allows passage at least of the end of the first arcing contact unit. A cross-sectional area of the main nozzle throat is substantially decreasing in the direction away from the auxiliary nozzle throat so as to form a substantially converging duct for the flow of an arc-extinguishing gas.

公开(公告)号：US09837230B2

公开(公告)日：2017-12-05

申请号：US15367990

申请日：2016-12-02

Applicant: ABB Schweiz AG

Inventor： Markus Bujotzek ,  Angelos Garyfallos ,  Philipp Simka ,  Emmanouil Panousis ,  Nitesh Ranjan

IPC: H01H33/666 ,  H01H33/88 ,  H01H1/38 ,  H01H33/90 ,  H01H33/91 ,  H01H33/53 ,  H01H33/70

CPC classification number: H01H33/882 ,  H01H1/385 ,  H01H33/53 ,  H01H33/666 ,  H01H33/6661 ,  H01H33/7023 ,  H01H33/90 ,  H01H33/91

Abstract: Gas-insulated high voltage puffer breaker comprising a puffer unit with a movable piston running in a puffer cylinder and delimiting a puffer volume. A piston and a first contact member are attached to a piston stem. A piston and a first contact member are attached to a piston stem. An electric arc is extinguishable in an arcing zone when the first contact member moves from a first position to a second position. The puffer volume is fluidly connected to a gas nozzle by a gas channel such that the puffer volume comprises the gas channel as well as a portion of the puffer cylinder. The gas channel is provided radially outside of the puffer cylinder between a puffer cylinder wall delimiting the puffer cylinder and a wall structure of the puffer unit.

公开(公告)号：US20170084412A1

公开(公告)日：2017-03-23

申请号：US15367990

申请日：2016-12-02

Applicant: ABB Schweiz AG

Inventor： Markus Bujotzek ,  Angelos Garyfallos ,  Philipp Simka ,  Emmanouil Panousis ,  Nitesh Ranjan

IPC: H01H33/88 ,  H01H33/666 ,  H01H33/53 ,  H01H33/91 ,  H01H33/70

CPC classification number: H01H33/882 ,  H01H1/385 ,  H01H33/53 ,  H01H33/666 ,  H01H33/6661 ,  H01H33/7023 ,  H01H33/90 ,  H01H33/91

Abstract: Gas-insulated high voltage puffer breaker comprising a puffer unit with a movable piston running in a puffer cylinder and delimiting a puffer volume. A piston and a first contact member are attached to a piston stem. A piston and a first contact member are attached to a piston stem. An electric arc is extinguishable in an arcing zone when the first contact member moves from a first position to a second position. The puffer volume is fluidly connected to a gas nozzle by a gas channel such that the puffer volume comprises the gas channel as well as a portion of the puffer cylinder. The gas channel is provided radially outside of the puffer cylinder between a puffer cylinder wall delimiting the puffer cylinder and a wall structure of the puffer unit.