Evaluating harmonic-induced transformer heating

被引：34

作者：

Bishop, MT

Baranowski, JF

Heath, D

Benna, SJ

机构：

[1] COOPER POWER SYST,APPARATUS DEV GRP,FRANKSVILLE,WI 53126

[2] COOPER POWER SYST,TRANSFORMER PROD DIV,WAUKESHA,WI

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 1996年 / 11卷 / 01期

关键词：

harmonics; transformer heating; transformer losses;

D O I：

10.1109/61.484029

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The proliferation of non-linear loads on power systems has increased the awareness of the potential reduction of a transformer's life due to increased losses. Over the past few years, several manufacturers and users have been applying a harmonic rating system to specify transformers based on relationships developed in ANSI/IEEE C57.110 [1]. The specification or evaluation of transformers in a harmonic environment requires a knowledge of the load mix as well as details of the load current harmonic content. The additional heating experienced by a transformer depends on the harmonic content of the load current, and the design of the unit. A heat run circuit was devised to produce harmonic rich load current on a 25 kVA oil-immersed distribution transformer. The test was conducted at 100% of nameplate current using a purely resistive load, and a 2.4 ms current pulse. The temperature rise experienced under harmonic excitation was observed and documented [2].

引用

页码：305 / 311

页数：7