Experimental Analysis of Industry Standards on Derating of a Three-Phase Induction Motor due to Thermal Stress Caused by Voltage Unbalance

被引：0

作者：

Springer, David ^{[1
]}

Stolz, Erik ^{[2
]}

Wiedenbrug, Ernesto ^{[2
]}

机构：

[1] Colorado State Univ, Ft Collins, CO 80523 USA

[2] Baker Instrument Comp, Ft Collins, CO 80523 USA

来源：

2009 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION, VOLS 1-6 | 2009年

关键词：

Derating; Power Quality; Three-Phase Induction Motor; Unbalance; Voltage Unbalance;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper presents the results and analysis of an empirical verification of the NEMA standard MG-1 voltage unbalance derating graph using temperature sensors embedded in a 5 Hp motor. This verification process identifies a reference coil temperature and automatically regulates the load to maintain the reference temperature at the single hottest coil for a wide range of incoming voltage unbalances such that design lifespan is maintained. The experimental results are disparate with that of the NEMA MG-1 standard and display evidence that conditions of unbalance play a role in motor derating. An investigation between IEC and IEEE style unbalance calculations is presented with a clear indication that both styles represent the same physical system nearly identically.

引用

页码：1242 / +

页数：2