公开(公告)号：WO2017207763A1

公开(公告)日：2017-12-07

申请号：PCT/EP2017/063474

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, Nitseh ,  STOLLER, Patrick

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

CPC classification number: H01H33/7023 ,  H01H9/52 ,  H01H33/121 ,  H01H33/56 ,  H01H33/703 ,  H01H33/7038 ,  H01H33/88 ,  H01H33/91 ,  H01H2033/566

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).

Abstract translation: 气体绝缘的低压或中压负载断路开关（1）包括：壳体（2），其限定用于将绝缘气体保持在环境压力下的壳体容积; ，布置在所述壳体容积内的第一电弧触头（10）和第二电弧触头（20），所述第一电弧触头和所述第二电弧触头（10,20）可沿着所述负载断路开关的轴线（12）相对于彼此移动， （1）并且限定在电流断开操作期间形成电弧（50）的淬火区域（52）;其中， 加压系统（40），其具有布置在壳体容积​​内的加压室（42），用于将骤冷气体从环境压力p 0加压至骤冷压力p quench / i> 在当前的中断操作过程中; 以及布置在壳体容积​​内的喷嘴系统（30），用于在电流切断操作期间以亚音速流动模式将加压淬火气体从加压室（42）吹到形成在淬火区域（52）中的电弧（50）上。 喷嘴系统（30）包括至少一个喷嘴（33），该喷嘴布置成用于将淬火气体主要径向向内从离轴位置吹向淬火区域（52）。

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).

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.

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.

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).

公开(公告)号：EP3465717A1

公开(公告)日：2019-04-10

申请号：EP17733745.8

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 includes: a housing defining a housing volume for holding an insulation gas at an ambient pressure; a first arcing contact and a second arcing contact arranged within the housing volume, the first and second arcing contacts being movable in relation to each other along an axis of the load break switch and defining a quenching region in which an arc is formed during a current breaking operation; a pressurizing system having a pressurizing chamber arranged within the housing volume for pressurizing a quenching gas from an ambient pressure p0 to a quenching pressure pquench during the current breaking operation; and a nozzle system arranged within the housing volume for blowing the pressurized quenching gas in a subsonic flow pattern from the pressurization chamber onto the arc formed in the quenching region during the current breaking operation. The nozzle system includes at least one nozzle arranged for blowing the quenching gas from an off-axis position predominantly radially inwardly onto the quenching region.

公开(公告)号：EP3465717B1

公开(公告)日：2020-08-05

申请号：EP17733745.8

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