EFFECT OF OIL VISCOSITY ON TRANSFORMER LOADING CAPABILITY AT LOW AMBIENT-TEMPERATURES

被引：27

作者：

AUBIN, J ^{[1
]}

PIERCE, LW ^{[1
]}

LANGHAME, Y ^{[1
]}

机构：

[1] GE,ROME,GA

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 1992年 / 7卷 / 02期

关键词：

D O I：

10.1109/61.127044

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 applicability of the ANSI loading guide for power transformers is limited to ambient temperatures above 0-degrees-C because the thermal model does not account for variations in the oil viscosity and winding resistance. A practical calculation method has been developed based on the bottom-oil temperature and the surface temperature at the top of the cooling duct. Results indicate that the proposed thermal model could provide a sound basis for calculating the overload capacity for ambient temperatures below 0-degrees-C or for severe overloads of short duration.

引用

页码：516 / 524

页数：9

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