公开(公告)号：US09279834B2

公开(公告)日：2016-03-08

申请号：US13707987

申请日：2012-12-07

Applicant: ABB RESEARCH LTD

Inventor： Göran Eriksson ,  Klaus Bohnert ,  Sergio Vincenzo Marchese ,  Stephan Wildermuth

IPC: G01R31/00 ,  G01R19/00 ,  G01R15/24

CPC classification number: G01R19/0046 ,  G01R15/242

Abstract: A voltage sensor includes an insulator with mutually insulated electrodes embedded therein. The electrodes are coaxial and cylindrical and overlap axially along part of their lengths. They are mutually staggered and control the surfaces of electric equipotential such that there is a substantially homogeneous electric field outside the insulator and a substantially homogeneous but higher field within a sensing cavity within the insulator. A field sensor is arranged within the sensing cavity to locally measure the field. This design allows for the production of compact voltage sensors for high voltage applications.

Abstract translation: 电压传感器包括嵌入其中的具有相互绝缘电极的绝缘体。 电极是同轴的和圆柱形的，并且沿其长度的一部分轴向重叠。 它们彼此交错并且控制电等电位的表面，使得在绝缘体外部存在基本上均匀的电场，并且在绝缘体内的感测腔内具有基本上均匀但更高的场。 感测腔内布置有场传感器，以便局部测量场。 该设计允许生产用于高压应用的紧凑型电压传感器。