Evaluation of the Grounding Circuit Measurements for Stator Ground-Fault Location of Synchronous Generators

被引：0
|
作者：
Blanquez, F. R. [1 ]
Rebollo, E. [1 ]
Platero, C. A. [1 ]
机构：
[1] Univ Politecn Madrid, Dept Elect Engn, E-28040 Madrid, Spain
来源：
2013 13TH INTERNATIONAL CONFERENCE ON ENVIRONMENT AND ELECTRICAL ENGINEERING (EEEIC) | 2013年
关键词：
Stator ground fault; fault location; generator protection;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Locating stator-winding ground faults accurately is a very difficult task. In this paper the grounding circuit measurements are evaluated in order to obtain information about the stator ground-fault location in synchronous generators. In power generators grounded through a high impedance, the relation between the neutral voltage and the phase voltage provide a first estimation of the fault location. The location error by using this ratio depends on the fault resistance and the value of the capacitance to ground of the stator winding. However, the error added by ignoring the value of the fault resistance is the most relevant term. This location estimation and the location error have been evaluated through the data of a real synchronous machine.
引用
收藏
页码：229 / 233
页数：5
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