公开(公告)号：US20150109017A1

公开(公告)日：2015-04-23

申请号：US14512710

申请日：2014-10-13

Applicant: ABB Technology AG

Inventor： Janusz SZCZECHOWSKI ,  Matthias STEIGER

IPC: G01R31/12 ,  G01R19/00

CPC classification number: G01R31/1227 ,  G01R31/027

Abstract: An exemplary test arrangement for in-situ partial discharge measurements in distribution transformers has at least one test system with a plurality of test components including: an AC voltage source for producing a variable test voltage with a measuring apparatus for recording current pulses caused by partial discharge and with an evaluation apparatus for the recorded current pulses, a grounded test container in which at least some of the test components are arranged, and a distribution transformer connected to the AC voltage source as a test object. The test object is arranged on insulation means for electrically insulating the test object. Those parts of the test object which are grounded during normal operation being connected at least to the potential of the grounded test container.

Abstract translation: 在配电变压器中用于原位局部放电测量的示例性测试装置具有至少一个具有多个测试部件的测试系统，包括：用于产生可变测试电压的AC电压源，用于记录由局部放电引起的电流脉冲的测量装置 以及用于记录的电流脉冲的评估装置，布置有至少一些测试部件的接地测试容器和连接到AC电压源的配电变压器作为测试对象。 测试对象被布置在用于电绝缘测试对象的绝缘装置上。 在正常操作期间接地的测试对象的这些部分至少与接地的测试容器的电位相连。