Power system transmission line parameter synchronic measurement and recording device
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- SHENZHEN SHUANGHE ELECTRIC CO LTD
- Publication Date
- 2009-10-28
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Abstract
Description
technical field
[0001] The invention relates to monitoring and recording, in particular to a device for synchronous measurement and recording of transmission line parameters in a power system. Background technique
[0002] In 2007, China formally adopted IEC 61850 as the power industry standard, and began to change the current situation of repeated data collection of secondary equipment, lack of data integration and processing, and lack of information exchange and sharing. The existing wave recorder can provide timely and accurate guarantee for user decision-making in the data integration and information exchange between IED devices, but it only sends data analysis to the master station in the event of a fault, and cannot perform synchronous measurement of power system transmission line parameters . The existing line parameter measurement method is blackout measurement, that is, the measured line must be powered off and disconnected from the grid, and the positive sequence ...