DISTRIBUTION TRANSFORMER OVERLOADING CAPABILITY UNDER COLD-LOAD PICKUP CONDITIONS

被引：33

作者：

AUBIN, J

BERGERON, R

MORIN, R

机构：

[1] Institut de recherche d’ébec (IREO), Varennes, Québec

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 1990年 / 5卷 / 04期

关键词：

cold-load; distribution transformer; electric heatinng; loading guide; pickup;

D O I：

10.1109/61.103685

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：

Greater use of electric heating in residential areas in North America has led to the appearance of a new type of thermal stress resulting from service restoration following a power outage. This loading condition, known as cold-load pickup, was simulated on a sample of 18 distribution transformers by applying overloads up to three times the rated current at ambient temperatures as low as -40°C. The data gathered was used to develop a thermal model representing the transient behavior of distribution transformers. The results were then generalized to produce a loading guide for evaluation of maximum hot-spot temperatures and loss of life under given cold-load pickup conditions. © 1990 IEEE

引用

页码：1883 / 1891

页数：9