本文描述了测量超导体的交流损耗的双积分法的原理、装置和三个样品的测量结果。
The principle and device of the double integration method for a. c loss measurement in superconductor are described. The measuring results of three samples were given.
因此，对高温超导体的交流损耗及临界电流与应力-应变的关系的研究具有重要的现实意义。
Therefore, the critical current and AC losses of HTS tapes are directly related to tensile stresses and strains, and it is necessary to investigate their correlations.
本文描述了测量超导体的交流损耗的新方法——双积分方法的原理、装置和三个样品的测量结果。
This paper describes the new method for a. c loss measurement in superconductor-The principle and device of double integration method and the result of measuring three samples.
得出了线圈型样品交流损耗与峰值磁场、励磁频率，材料扭矩，基体材料，细芯直径诸量间的依赖关系。
The dependence of the ac loss of coil-type samples on the peak value of magnetic field, magnetizing frequency, pitch of materials, matrix and diameter of filament were obtained.
现在有人开始质疑这一标准的适用性，因为在远距离输电的情况下，采用高压直流(HVDC)要比高压交流损耗小。
Some people, however, question that standard because over long distances high-voltage DC lines suffer lower losses than AC.
选择交流电作为工业标准的原因很简单，在早期供电距离很短的电网里，交流电的损耗比直流电小。
The reason was that over the short distances spanned by early power grids, AC transmission suffers lower losses than DC. It thus became the industry standard.
由于在传输过程中采用高压直流电缆输送的损耗要比传统交流电的损耗小得多，因此采用交流电远距离传送电力很不划算。
Energy losses on DC lines are far lower than on the traditional AC ones, which make transmission of energy over long distances uneconomic.
真机实测股线电流表明，交流电机定子圈式线圈并联股线间存在相当可观的基波和谐波环流损耗。
Measurments of the strand current show that the basic and harmonic circulating current losses in the stator barrel type coil of ac machines are quite significant.
如何减少电力电子器材的开关损耗，是斩控式交流调压器大功率化的关键技术。
How to reduce the switching loss of the power electron equipment is the key technology of high power of chopping AC regulator.
在交流电网中，常常采用移相电容器补偿无功功率损耗的方法来提高网络的功率因数。
In ac power network, the way of phase-shifting capacitors to compensate reactive power loss is always adopted to raise network power factor.
水泵变频调速恒压交流供水是目前应用最广泛的节能供水方式，其能耗较低，但仍存在额外的水力损耗；
The constant-pressure and variable-flow adjustment of inverter-drive pump is widely used for energy saving, but the method has still additional hydraulic loss.
最后完成实作一满载效率达87 %，且空载损耗低于0.51W以下的交流转直流稳压器。
A prototype regulator is implemented with a full-load efficiency of 87%, and no-load loss less than 0.51W.
导出了计算其空换位长度及相应环流损耗比值的解析式，供设计大型交流电机定子线棒时参考。
Thus the analytical expressions for calculating the length of voids and its circulating current loss ratio have been deduced.
首先介绍了由“直流分量法”、“交流叠加法”和“损耗电流测量法”三者结合起来的综合判断方法，然后重点论述了交流叠加法的具体实现方案。
In this paper, a comprehensive method combined by DC component method, AC superposition method and loss current measurement method are described at first.
表中单芯铠装电缆仅适用于直流线路，如用于交流则必需采用非磁性材料或减少磁损耗结构的铠装。
The single core armored cable in the list are only suitable for use for DC circuit. If used for AC circuit, non-magnetic material or armored by reducing magnetic loss structure must be used.
交流弧焊机空载时的耗电量造成了大量的能源损耗，介绍了自动节电装置的作用、工作原理及在生产中的可行性，在实践中取得了良好的节能效果。
Action, work principle and practicability in the production of the automatic electricity saving device were introduced in this paper, which achieved good energy saving results in practice.
本发明属于交流电动机设计制造领域，特别涉及一种低损耗的交流电动机定子冲片。
The invention belongs to the field of design and manufacture of the ac motor and particularly relates to a low-loss stator punching sheet of an ac motor.
本发明属于交流电动机设计制造领域，特别涉及一种低损耗的交流电动机定子冲片。
The invention belongs to the field of design and manufacture of the ac motor and particularly relates to a low-loss stator punching sheet of an ac motor.
应用推荐