Effective suppression method of three-phase transformer's inrush current

被引：0
作者：
Cheng, CL [1 ]
Lin, CE [1 ]
Hou, KC [1 ]
Hsia, YF [1 ]
机构：
[1] Huwei Inst Technol, Dept Elect Engn, Yunlin, Taiwan
来源：
2002 IEEE REGION 10 CONFERENCE ON COMPUTERS, COMMUNICATIONS, CONTROL AND POWER ENGINEERING, VOLS I-III, PROCEEDINGS | 2002年
关键词：
non-synchronous; inrush current; suppressing method; transformer;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Three-phase transformers are key components in power systems and power plants. Security, stability and increasing the life of transformers are important to system operation. When a three-phase transformer is energized, the inrush current - due to flux saturation in the core -results in a malfunction of the differential relay and also causes a stress impact to the transformer. These have an adverse effect on the security and stability of the power system. In this paper, a non-synchronous suppressing method is proposed to suppress the inrush current of three-phase transformers. The overvoltages caused by the inrush current can also be avoided. The proposed method is examined by means of experiments, which show excellent results in suppressing the inrush current. The proposed method can be applied to improve the protective relaying system of three-phase transformers.
引用
收藏
页码：2030 / 2033
页数：4
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