Invention Grant
- Patent Title: Device for detecting partial discharge in an insulation system of rotary electric machines
- Patent Title (中): 用于在旋转电机绝缘系统中检测局部放电的装置
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Application No.: US13071530Application Date: 2011-03-25
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Publication No.: US08797045B2Publication Date: 2014-08-05
- Inventor: Hendrik Elze , Stefan Kornhuber
- Applicant: Hendrik Elze , Stefan Kornhuber
- Applicant Address: DE Kesselsdorf
- Assignee: Doble Lemke GmbH
- Current Assignee: Doble Lemke GmbH
- Current Assignee Address: DE Kesselsdorf
- Agent Gudrun E. Huckett
- Main IPC: H01H31/12
- IPC: H01H31/12
Abstract:
A device for determining partial discharge in an insulation system of a rotating electrical machine with low capacitance decoupling has a coupler as a high pass and an adapter device connected or connectable to the coupler. The adapter device has a frequency separating filter for dividing a decoupled signal provided by the coupler into a high frequency signal and a low frequency signal. A mixer is provided for the high frequency signal and the low frequency signal for converting the high frequency signal. An output is provided where the converted high frequency signal is tapped for evaluation by an evaluation device connectable to the adapter device.
Public/Granted literature
- US20120242348A1 Device for Detecting Partial Discharge in an Insulation System of Rotary Electric Machines Public/Granted day:2012-09-27
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