公开(公告)号：EP3244433A1

公开(公告)日：2017-11-15

申请号：EP16168840.3

申请日：2016-05-10

Applicant: ABB Schweiz AG

Inventor： Gentsch, Dietmar, Dr. ,  Hencken, Kai, Dr. ,  Kaufmann, Tobias, Dr.

IPC: H01H33/668 ,  G01L21/34 ,  H01J41/06

CPC classification number: H01H33/668 ,  G01L21/34 ,  G01L27/002 ,  H01H2033/6686 ,  H01J41/06

Abstract: The invention relates to a vacuum interrupter with at least one movable and at least one fixed contact, arranged inside of a vacuum tight ceramic housing, wherein the vacuum interrupter is provided with means to determine the actual residual gas pressure inside the vacuum tight ceramic housing. In order to measure the actual residual pressure inside a vacuum interrupter, even when the vacuum interrupter is in operation, and to realize it with compact means, the invention is, that the means for determing the residual gas pressure inside the vacuum tight ceramic housing are means for generating an inhomogenous magnetic field inside the vacuum tight ceramic housing, operating as an electron trap, and that furthermore one of the contacts represents an anode, and a further element implemented inside the vacuum interrupter represents the cathode for measing a current, which represents the aforesaid residual gas pressure.

Abstract translation: 本发明涉及一种真空断续器，其具有至少一个可移动的和至少一个固定触点，该真空断续器布置在真空密封陶瓷外壳内部，其中真空断续器设有用于确定真空密封陶瓷外壳内的实际残留气体压力的装置。 为了测量真空断续器内部的实际残余压力，即使在真空断续器处于操作中并且以紧凑的方式实现真空断路器时，本发明确定真空密封陶瓷外壳内的残余气体压力的装置是 用于在真空密封陶瓷外壳内部产生非均匀磁场的装置，作为电子陷阱工作，而且其中一个触点代表阳极，在真空断续器内实现的另一个元件代表用于测量电流的阴极， 上述残余气体压力。