Based on these basic theories about design for air - core reactor , computer - aided design system for air - core power reactor is developed in windows os 在以上有关空心电抗器设计的理论基础之上，开发了基于windows操作系统的空心电抗器计算机辅助设计系统。
In order to study the feasibility of the hts air - core pulse transformer , a model of air - core pulse transformer with five superconducting double - pancakes is build 摘要为了研究高温超导空心脉冲变压器的可行性，文中建立了一个由五个超导双饼组成的空芯脉冲变压器模型。
The distributions of electromagnetic field inside the transformer are simulated using ansys . according to simulated result , the cylindrical magnetic core is used in the air - core spiral strip pulse transformer 用ansys模拟变压器内部的静态电磁场分布,根据模拟结果,决定采用在变压器的内部加单个圆筒形内磁芯的结构形式。
Our company import all kinds of famous tapping machines ( as pneumatic / electric / hydraulic ) from all over the word , various tapping chunks , toolholders , cutting tools , magnetic force drills , air - cored drill bits . pneumatic tools and electric tools 主要进口的产品为欧美各国世界名牌攻丝机（气动，电动，液压） ，各类攻丝夹头，刀柄，刀具，磁力钻，空芯钻头，其它气动工具，电动工具等。
So indoor dry - type air - cored reactor has the feature of isolation and damp - ness proof , all weather isolation material is adopted for outdoor reactor . the damping resistor is natural cooling and set up with slice resistor elements between which is epoxy bakelite bushing 阻尼电阻器系空气自冷式，采用板型电阻元件装配而成，各元件之间套环氧酚醛玻璃布管，具有良好的电气性能和机械性能。
The formulas used to calculate the mutual inductance between coils non - axially , and used to calculate electromagnetic force acted on air - core power reactor under the condition of power system short - circuit are also presented , it start from the basic principle of electromagnetic field 本文还从电磁场的基本原理出发，求得了非同轴平行螺线管之间的互感计算公式和大型空心电力电抗器电磁力的解析表达式。
The reactor is adopted dry - type air - cored structure and its coil is made of high quality naked copper wire . the epoxy bakelite block is used as underlay between coil trays , entire coil is firmed with unmagnetized clamps and the bare metal part of reactor is covered by anti - corrosive material 电抗器为干式空心简式结构，线圈用优质裸铜线制作，线盘间垫环氧酚醛布板块，整个线圈用无磁性夹件紧固，电抗器外露金属部分有良好的防腐蚀层。
1 . since this type of reactor has a dry - type air - cored structure , which will prevent leakage and burning so as to maintenance easily and operate reliably . no - core structure without ferromagnetic induction effect so that it is provided with the feature of good linearity and low noise 1 .电抗器采用干式空心结构，避免油浸式电抗器发生漏油易燃等缺点，维护简单，运行安全，无铁心，不存在铁磁饱和，电感值不会随电流变化而变化，线性度好，噪音低。
Using the vector potential , the expression for calculating inductance of air - cored solenoid coil is derived in the dissertation . and the calculating methods of function t in the calculating expression are given for the convenience of the calculation of inductance while the precision is not strictly requested 利用矢量磁位a直接推导出了通电空心圆柱线圈电感的计算表达式，给出了求解计算式中函数t的计算方法，以方便精度要求不高时的电感计算。
In the end , the part - magnetic - core pulse transformer is constructed with primary inductance 3 . 14 h , second inductance 298 . 89 h and coupling coefficient 0 . 873 . compared with the air - core spiral strip pulse transformer of the same dimension , the coupling coefficient is increased by 13 . 4 percent . this transformer is used to charge for water capacitor 最终研制的部分磁芯带绕式脉冲变压器的初级电感为3 . 14 h ,次级电感为298 . 9 h ,次级输出电压在635kv以上,耦合系数为0 . 87 ,比相同结构尺寸的带绕式空芯脉冲变压器的耦合系数提高了13 . 4 % ,变比提高了20 % ,能量传输效率提高44 % 。
