变压器绕组轴向预紧力对绕组轴向振动特性的影响  

INFLUENCE OF AXIAL PRECOMPRESSION LEVEL ON AXIAL VIBRATIONS IN TRANSFORMER WINDINGS

作　　者：王洪方[1] 王乃庆[1] 李同生[1] 

机构地区：[1]中国电力科学研究院,北京清河100085

出　　处：《电网技术》1999年第9期8-11,18,共5页Power System Technology

摘　　要：根据变压器绕组的实际结构特点，建立了绕组轴向振动数学模型，研究了变压器短路时绕组轴向振动的非线性特性，分析了不同绕组预紧力下线饼轴向位移量、绕组对端压板的作用力随短路电流。Based on the actual structure of transformer windings, a mathematical model on axial vibrations in transformer windings is developed, and it is applied to study the axial nonlinear vibration characteristics of windings. The relationships between coil axial displacements, winding forces on clamping plate and short circuit currents,tapping change are analyzed under different levels of axial precompression.

关 键 词：变压器 绕组 轴向预紧力 轴向振动 电力变压器 

分 类 号：TM410.32[电气工程—电器]