Simulation Analysis on Dynamic Protection Characteristics of Low Voltage Circuit Molded Case Breakers Based on PSCAD/EMTDC

被引：0
|
作者：
Jing, Huang [1 ]
Bing, Shen [1 ]
机构：
[1] Naval Univ Engn, Coll Elect Engn, Wuhan 430033, Peoples R China
来源：
2014 33RD CHINESE CONTROL CONFERENCE (CCC) | 2014年
关键词：
power system; MCCB; dynamic protection characteristics; simulation; PSCAD/EMTDC; ARC; MODEL;
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：
In this paper, the electromagnetic characteristics of magnetic instantaneous acting trip in typical low-voltage molded case circuit breakers (MCCB) are analyzed using finite element analysis software ANSOFT and the electromagnetic torque on armature of magnetic trip which varied with the current and air gap are calculated and applied into motion equations of the trip. Based on the motion equations and Cassie arc model, a simulation model of MCCB is built using power system simulation software PSCAD/EMTDC to describe the dynamic behavior of the MCCB during short-circuit protection. The results of short-circuit interruption experiments verifies the accuracy of the model. It demonstrates that the simulation model has good prospect in optimizing the design and protection performance of MCCB.
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页码：6293 / 6297
页数：5
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