中国电力2012，Vol.45Issue(4)：42-46,5.
VFTO下分段层式变压器线圈电位分布研究
Research on potential distribution in transformer with subsection and layer windings under VFTO
窦玉雷 1蒋中杰 1王亚军 2薛志英3
作者信息
- 1. 四川省电力公司眉山公司,四川眉山620010
- 2. 河北省电力调度中心,河北石家庄050019
- 3. 华北电力大学,北京 102206
- 折叠
摘要
Abstract
It is very important for transformer insulation design to calculate winding potential distribution of the transformer with subsection and layer winding under VFTO (Very Fast Transient Over-voltage). VFTO generated by GIS switchgear switching is very harmful to transformer insulation. In order to accurately simulate the very fast transient process in the winding, a lumped parameter model with single layer winding unit is proposed. Physical model and math formula for the calculation of inductance, capacitance and resistance parameters are introduced. The consistency between simulation and measurement results in an actual transformer winding verifies the correctness of proposed model, which provides theoretical basis for transformer winding insulation design.关键词
特快速暂态过电压/变压器线圈/集总参数/电位分布Key words
very fast transient over-voltage ( VFTO)/transformer with subsection and layer winding/lumped parameter model/potential distribution分类
信息技术与安全科学引用本文复制引用
窦玉雷,蒋中杰,王亚军,薛志英..VFTO下分段层式变压器线圈电位分布研究[J].中国电力,2012,45(4):42-46,5.
