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公开(公告)号:US10746810B2
公开(公告)日:2020-08-18
申请号:US15579425
申请日:2016-06-09
发明人: Michael Freiburg , Felix Feustel , Horst Schedler , Dmitry Atlas
摘要: A switch apparatus (10) for a measuring device (30) for a transformer includes controllable switch device (14) which are configured to short-circuit respectively assigned terminals (11) of one of a plurality of windings of the transformer. A test apparatus (40) including the switch apparatus (10) and a method (50) for operating the switch apparatus (10) are also disclosed. With apparatuses (10, 40) and methods (50) according to the exemplary embodiments, the work effort, time expenditure and errors and inaccuracies can be reduced through an automated testing of transformers.
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公开(公告)号:US20160025797A1
公开(公告)日:2016-01-28
申请号:US14782183
申请日:2014-02-04
发明人: Michael Krüger , Dmitry Atlas , Florian Predl , Markus Jäger , Michael Freiburg
IPC分类号: G01R31/02
CPC分类号: G01R31/027
摘要: For testing a transformer (20) the transformer (20) is emulated by an equivalent circuit (30) and an accuracy of the transformer (20) relative to the equivalent circuit (30) is determined by evaluating a test response of the transformer (20) and is then automatically converted to an operating condition-related accuracy of the transformer (20).
摘要翻译: 为了测试变压器(20),变压器(20)由等效电路(30)仿真,并且通过评估变压器(20)的测试响应来确定变压器(20)相对于等效电路(30)的精度 ),然后自动转换为变压器(20)的工作条件相关精度。
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3.
公开(公告)号:US20180143236A1
公开(公告)日:2018-05-24
申请号:US15579425
申请日:2016-06-09
发明人: Michael Freiburg , Felix Feustel , Horst Schedler , Dmitry Atlas
摘要: A switch apparatus (10) for a measuring device (30) for a transformer comprises controllable switch means (14) which are configured to short-circuit respectively assigned terminals (11) of one of a plurality of windings of the transformer. A test apparatus (40) comprising the switch apparatus (10) and a method (50) for operating the switch apparatus (10) are also disclosed. With apparatuses (10, 40) and methods (50) according to the exemplary embodiments of the invention, the work effort, time expenditure and errors and inaccuracies can be reduced through an automated testing of transformers.
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公开(公告)号:US09817053B2
公开(公告)日:2017-11-14
申请号:US14782183
申请日:2014-02-04
发明人: Michael Krüger , Dmitry Atlas , Florian Predl , Markus Jäger , Michael Freiburg
CPC分类号: G01R31/027
摘要: For testing a transformer (20) the transformer (20) is emulated by an equivalent circuit (30) and an accuracy of the transformer (20) relative to the equivalent circuit (30) is determined by evaluating a test response of the transformer (20) and is then automatically converted to an operating condition-related accuracy of the transformer (20).
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