Because the traditional calculation method of transformer temperature rise is not suitable for the design of fluid-immersed power transformer with hybrid insulation system,this paper built a finite element model of thermal-fluid coupled field for power transformer based on the heat transfer theory and fluid dynamics.
由于传统的变压器温升计算公式不再适用于混合绝缘结构的液浸式新型电力变压器设计,为此笔者采用传热学和流体动力学原理建立了变压器热流耦合场的有限元模型,模型中考虑了变压器油热力学参数的非线性和绕组结构中垫快、纸筒对散热的影响,并根据不同的绕组形式进行单元离散。
Feature of migmatite in Li'eryu Group of Liaoji boron ore belt and its relationship with boron-contained rocks
辽吉硼矿带中里尔峪组混合岩特征与含硼岩系关系
The Xiaopanling gold deposit is located in the compound granites of centre belt of migmatization,the compound gneiss mostly occur in the middle and the banded migmatitehost compound complex mostly occur in the external.
辽宁绥中小盘岭金矿床位于混合岩化中心带的混合花岗岩内,其中间带主要为混合片麻岩,外带为以条带状混合岩为主的混合杂岩。
Nalati tectonic belt located between the Ili Basin and the South Tianshan of western Tianshan is 25 km wide, and it is composed of earlier Proterozoic schist, gneiss, migmatite, and migmatitic granite.
那拉提构造带位于天山西段伊犁盆地与南天山之间 ,出露宽度约 2 5 km,由早元古代片岩、片麻岩及混合岩、混合花岗岩组成 ;深层次韧性剪切带及叠加中 -浅层次剪切带发育 ;那拉提构造带南缘断裂明显 ,南侧为古生代浅变质黑色岩系 ;构造带北缘韧 /脆性剪切带宽度大 ,两侧岩石劈理化后易于混淆 ,故界线不明显。
Study on the Physics and Chemistry Characteristics and Breakdown Voltage of a Mixed Insulation Oil Composed of Mineral Oil and Natural Easter
矿物油和天然酯混合绝缘油的理化特性和击穿电压研究
Researches on Insulation Characteristics of C-C_4F_8 and Its Mixtures;
c-C_4F_8及其混合气体绝缘性能的研究
Experimental Research of Electrical Insulating Characteristics about SF_6、N_2 and Their Mixtures;
SF_6、N_2及其混合气体绝缘特性实验研究
compound filled insulator
填充绝缘化合物绝缘子
Study on Insulation Characteristics of c-C_4F_8 and Its Gas Mixtures Substituting SF_6;
SF_6替代气体c-C_4F_8及其混合气体的绝缘性能研究
Simulation of Charge Accumulation and Flashover on the Surface of Insulator in SF_6/N_2 Gas Mixtures Using Particle-in-cell Method
SF_6/N_2混合气体中绝缘子表面电荷积聚与沿面闪络的PIC仿真
pin insulation (cement)
接线杆绝缘物(胶合物)
combined mechanical and electrical strength
机电综合强度(绝缘子)
isolator (-ter)
绝缘体;绝缘体;绝缘物;绝缘物;绝缘子;绝缘子
The feasibility of the composite insulation applied to HVDC equipment
高压直流设备外绝缘采用合成绝缘的可行性
External Insulation Characteristic and Insulation Co-ordination for 500 kV High Altitude Compact AC Transmission Line
500kV高海拔紧凑型输电线外绝缘特性及绝缘配合
Discussion on Relationship between Composite Insulator's Manufacturing Process and Insulation Failure and its Choice
探讨合成绝缘子制造工艺与绝缘子失效的关系
The test apparatus is a physical arrangement of dampers, mixer, thermopile, and ducts, all properly sealed and insulated.
测试装置是一个爱挑毛病的人,混合器,热电对列和管的实际安排,全部适当地封闭而且绝缘。
Characteristics of UHF partial discharge signal waveforms of typical insulated defects in GIS
气体绝缘组合电器内绝缘缺陷超高频局部放电信号特性
Natural Pollution Test of Composite and Porcelain Insulators Under AC and DC Stress
交、直流电压下复合绝缘子和瓷绝缘子的自然积污试验
Revision of IEC Insulator Terms and Composite Insulators Standards
国际电工委员会绝缘子术语和复合绝缘子标准的修改
Insulation co-ordination for high voltage transmission and distribution equipment
GB311.1-1997高压输变电设备的绝缘配合
Study on Space Charge Measurement System of Polymer Insulation;
聚合物绝缘空间电荷测量系统的研究