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    GAS-INSULATED LOW- OR MEDIUM-VOLTAGE LOAD BREAK SWITCH
    2.
    发明申请
    GAS-INSULATED LOW- OR MEDIUM-VOLTAGE LOAD BREAK SWITCH 审中-公开

    公开(公告)号：WO2020035610A1

    公开(公告)日：2020-02-20

    申请号：PCT/EP2019/072053

    申请日：2019-08-16

    Applicant: ABB SCHWEIZ AG

    Inventor： RANJAN, Nitesh ,  CARSTENSEN, Jan ,  BUJOTZEK, Markus ,  OVER, Daniel ,  SCHWINNE, Michael

    IPC: H01H33/90 ,  H01H33/70 ,  H01H33/915 ,  H01H33/91 ,  H01H1/38 ,  H01H3/46

    Abstract: The load break switch (1) comprises a housing (2) defining a housing volume for holding an insulation gas; a movable contact (20) and a fixed contact (10) arranged within the housing volume, the movable contact (20) being movable in relation to the fixed contact (10) along an arcuate trajectory (A) of movement and defining an arcing region (52) in which an arc is formed during an opening operation of the switch (1); a pressurizing system (40, 41), actuated by a movement of the movable contact (20) during opening of the switch (1), for pressurizing the insulation gas; a nozzle (30), the nozzle being arranged within the housing volume and being fixed to the movable contact (20) and/or defining a contacting part (20, 24) of the movable contact (20), wherein the nozzle (30) is adapted to blow the pressurized insulation gas into the arcing region (52) substantially tangentially to the arcuate trajectory (A).

    GAS-INSULATED LOAD BREAK SWITCH AND SWITCHGEAR COMPRISING A GAS-INSULATED LOAD BREAK SWITCH
    3.
    发明申请
    GAS-INSULATED LOAD BREAK SWITCH AND SWITCHGEAR COMPRISING A GAS-INSULATED LOAD BREAK SWITCH 审中-公开

    公开(公告)号：WO2019001946A1

    公开(公告)日：2019-01-03

    申请号：PCT/EP2018/065480

    申请日：2018-06-12

    Applicant: ABB SCHWEIZ AG

    Inventor： RANJAN, Nitesh ,  ATTAR, Elham ,  CARSTENSEN, Jan ,  SAXEGAARD, Magne ,  KRISTOFFERSEN, Martin ,  TALMO, Ståle ,  LOHNE, Stanley ,  SCHWINNE, Michael ,  SEEGER, Martin

    IPC: H01H33/70 ,  H01H33/88 ,  H02B13/055 ,  H01H33/12 ,  H01H33/56 ,  H01H1/38 ,  H01H33/22 ,  H01H33/91

    Abstract: The disclosure relates to a gas-insulated load break switch(1) and a gas-insulated switchgear (100) comprising a gas-insulated load break switch (1). The gas-insulated load-break switch (1) has a housing (2) defining a housing volume for holding an insulation gas at an ambient pressure;a first main contact (80)and a second main contact (90), the first and second main contacts (80, 90) being movable in relation to each other in the axial direction (A) of the load break switch (1);a first arcing contact (10) and a second arcing contact (20), the first and secondarcing contacts (10, 20) being movable in relation to each other in an axial direction (A) of the load break switch (1) and defining an arcing region in which an arc is formed during a current breaking operation, wherein the arcing region is located, at least partially, radially inward from the first main contact;a pressurizing system (40) having a pressurizing chamber (42) for pressurizing a quenching gas during the current breaking operation;and a nozzle system (30) arranged and configured to blow the pressurized quenching gas onto the arc formed in the quenching region during the current breaking operation, the nozzle system (30) having a nozzle supply channel for supplying at least one nozzle (33) with the pressurized quenching gas. The first main contact (80) comprises at least one pressure release opening (85) formed such as to allow a flow of gas substantially in a radial outward direction, wherein the total area of the at least one pressure release opening (85) is configured such that during a supply of the pressurized quenching gas, a reduction of the flow of gas out of the pressure release opening (85) is suppressed.

    HIGH VOLTAGE PUFFER BREAKER AND A CIRCUIT BREAKER UNIT COMPRISING SUCH A PUFFER BREAKER
    7.
    发明公开
    HIGH VOLTAGE PUFFER BREAKER AND A CIRCUIT BREAKER UNIT COMPRISING SUCH A PUFFER BREAKER 审中-公开
    麻省理工学院麻省理工学院

    公开(公告)号：EP3149757A1

    公开(公告)日：2017-04-05

    申请号：EP14730488.5

    申请日：2014-06-02

    Applicant: ABB Schweiz AG

    Inventor： BUJOTZEK, Markus ,  GARYFALLOS, Angelos ,  SIMKA, Philipp ,  PANOUSIS, Emmanouil ,  RANJAN, Nitesh

    IPC: H01H33/90 ,  H01H33/91 ,  H01H1/38

    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.

    Abstract translation: 气体绝缘高压吹气断路器包括一个带有可移动活塞的吹气单元，该可移动活塞在吹气缸中运行并限定了一个吹气量。 活塞和第一接触构件附接到活塞杆。 活塞和第一接触构件附接到活塞杆。 当第一接触构件从第一位置移动到第二位置时，电弧在电弧区中熄灭。 吹气体积通过气体通道流体地连接到气体喷嘴，使得吹气体积包括气体通道以及一部分吹气气缸。 气体通道径向地设置在吹气缸的外侧，位于限定吹气缸的吹气汽缸壁和吹气单元的壁结构之间。

    GAS-INSULATED LOAD BREAK SWITCH AND SWITCHGEAR COMPRISING A GAS-INSULATED LOAD BREAK SWITCH
    9.
    发明公开
    GAS-INSULATED LOAD BREAK SWITCH AND SWITCHGEAR COMPRISING A GAS-INSULATED LOAD BREAK SWITCH 审中-公开

    公开(公告)号：EP3422381A1

    公开(公告)日：2019-01-02

    申请号：EP17178561.1

    申请日：2017-06-29

    Applicant: ABB Schweiz AG

    Inventor： RANJAN, Nitesh ,  ATTAR, Elham ,  CARSTENSEN, Jan ,  SAXEGAARD, Magne ,  KRISTOFFERSEN, Martin ,  TALMO, Ståle ,  LOHNE, Stanley ,  SCHWINNE, Michael ,  SEEGER, Martin

    IPC: H01H33/70 ,  H01H33/88 ,  H02B13/055 ,  H01H33/12 ,  H01H33/56 ,  H01H1/38 ,  H01H33/22 ,  H01H33/91

    Abstract: The disclosure relates to a gas-insulated load break switch (1) and a gas-insulated switchgear (100) comprising a gas-insulated load break switch (1).
    The gas-insulated load-break switch (1) has a housing (2) defining a housing volume for holding an insulation gas at an ambient pressure; a first main contact (80) and a second main contact (90), the first and second main contacts (80, 90) being movable in relation to each other in the axial direction (A) of the load break switch (1); a first arcing contact (10) and a second arcing contact (20), the first and second arcing contacts (10, 20) being movable in relation to each other in an axial direction (A) of the load break switch (1) and defining an arcing region in which an arc is formed during a current breaking operation, wherein the arcing region is located, at least partially, radially inward from the first main contact; a pressurizing system (40) having a pressurizing chamber (42) for pressurizing a quenching gas during the current breaking operation; and a nozzle system (30) arranged and configured to blow the pressurized quenching gas onto the arc formed in the quenching region during the current breaking operation, the nozzle system (30) having a nozzle supply channel for supplying at least one nozzle (33) with the pressurized quenching gas.
    The first main contact (80) comprises at least one pressure release opening (85) formed such as to allow a flow of gas substantially in a radial outward direction, wherein the total area of the at least one pressure release opening (85) is configured such that during a supply of the pressurized quenching gas, a reduction of the flow of gas out of the pressure release opening (85) is suppressed.

    GAS-INSULATED LOW- OR MEDIUM-VOLTAGE LOAD BREAK SWITCH
    10.
    发明公开
    GAS-INSULATED LOW- OR MEDIUM-VOLTAGE LOAD BREAK SWITCH 审中-公开

    公开(公告)号：EP3764382A1

    公开(公告)日：2021-01-13

    申请号：EP20189405.2

    申请日：2017-06-02

    Applicant: ABB Schweiz AG

    Inventor： GALLETTI, Bernardo ,  ATTAR, Elham ,  CARSTENSEN, Jan ,  SAXEGAARD, Magne ,  KRISTOFFERSEN, Martin ,  SEEGER, Martin ,  SCHWINNE, Michael ,  RANJAN, Nitesh ,  STOLLER, Patrick

    IPC: H01H33/12 ,  H01H9/52 ,  H01H33/70 ,  H01H33/88 ,  H01H33/91

    Abstract: A gas-insulated low- or medium-voltage load break switch (1) comprises: a housing (2) defining a housing volume for holding an insulation gas at an ambient pressure; a first arcing contact (10) and a second arcing contact (20) arranged within the housing volume, the first and second arcing contacts (10, 20) being movable in relation to each other along an axis (12) of the load break switch (1) and defining a quenching region (52) in which an arc (50) is formed during a current breaking operation; a pressurizing system (40) having a pressurizing chamber (42) arranged within the housing volume for pressurizing a quenching gas from an ambient pressure p 0 to a quenching pressure p quench during the current breaking operation; and a nozzle system (30) arranged within the housing volume for blowing the pressurized quenching gas in a subsonic flow pattern from the pressurization chamber (42) onto the arc (50) formed in the quenching region (52) during the current breaking operation. The nozzle system (30) comprises at least one nozzle (33) arranged for blowing the quenching gas from an off-axis position predominantly radially inwardly onto the quenching region (52).

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