文档介绍：SSFZ9-90000/220/115/35 三绕组有载调压
电力变压器电磁计算
摘要
变压器理论是电机学的一个分支。尽管变压器是一个静止电气设备,但由于高电压、大容量变压器的出现,变压器理论同样是一门复杂的学科,所涉及知识面广,难度也很大。本文主要介绍了电力变压器的发展历史,并且针对SSFZ9-90000/220/115/35三相三绕组有载调压电力变压器进行了简单的电磁计算和设计,其中计算部分包括:变压器的电路计算、变压器的磁路计算、变压器短路阻抗计算、变压器的绝缘、变压器温升计算、变压器电动力计算、变压器整体重量计算等。本文重点放在理论与实践的沟通,对于每一参数的选取、每一系数的取值范围,都经过认真思考,并向老师询问,再进行计算,在计算中,也尽量结合工程实际,以及保证误差在工程上允许的范围内。最后的运算结果符合国家标准,完成了变压器的电磁计算。
关键词变压器;短路阻抗;电磁计算
The calculation and design of SSFZ9-90000/220/115/35 three winding load variation power transformer
Abstract
Transformer theory is also plex subject, involving extensive knowledge, is also very difficult。This paper describes the development of historical of power transformers, And for SSFZ9-90000/220/115/35 Three-winding power transformer load tap a simple ic calculation and design, some of which include the calculation: calculation of the transformer circuit, the transformer ic circuit calculation, transformer short circuit impedance calculation, transformer insulation, transformer temperature rise calculation, electric power transformer calculation, the overall weight of transformers and so on. This article focuses munication theory and practice, for each parameter selection, the range of each factor, have been seriously thinking to the teacher about then calculated, in the calculation, but also try bine engineering and ensure that errors in engineering to the extent permitted. The final calculation results to the national standard, completed the calculation of ic transformer.
Keywords power transformer ;short–circuit;
puting
目录
摘要 I
Abstract II
第1章绪论 1
我国电力变压器发展及发展趋势 1
我国现阶段企业生产变压器状况 1
变压器计算的一般程序 2
本课题的目的和意义 4
第2章电力变压器设计计算 5
技术条件 5
额定电压电流计算 5
绕组的相电压 5
绕组的相电流 6
电磁路计算 6
铁心计算 6
绕组匝数计算 7
高电压比校核 8
绕组的选择 8
线段排列及计算 9
绕组尺寸计算 10
绕组绝缘半径计算 12
短路阻抗的计算 12
额定短路阻抗的计算 12
最小分接短路阻抗的计算 15
最大分接短路阻抗的计算 15
损耗计算 16
空载损耗计算 16
空载电流计算 16