局部放电测量是诊断定子绕组绝缘最为有效的方法的之一。
On-line partial discharge monitoring is one of the most effective methods for winding insulation diagnosis of large generator stator.
与PAM(极幅调制)理论相比,最小对称组理论可更有效地实现交流电机变极绕组非正规方案。
Compared with PAM (pole Amplitude Modulation) theory, the minimum symmetric group theory is more effective in implementation of ac machine pole-changing winding's non-regular arrangements.
提出了一种基于网络函数的VF TO下变压器绕组响应计算的有效方法。
An efficient method is presented for calculating the response of transformer windings under VFTO based on network function in this paper.
根据等效整距集中绕组与实际绕组产生相等基波磁动势的原则,给出了实际定子绕组与转子绕组的总有效匝数表达式。
Based on the principle that an equivalent full-pitch, concentrated winding gives the same fundamental MMF as the actual one, the effective number of turns of the equivalent winding is obtained.
指出异槽式电枢绕组仅在特定的绕组参数条件下,才能有效地提高电机的换向性能。
The split throw winding can allow to improve the commutating capability of electric machine effectively depending on the given winding parameters.
设计一种基于反激式同轴多绕组输出均衡电路,实现对多个串联单体的快速有效均衡。
One kind of equalization circuit based on CWT (coaxial windings transformer) was designed to achieve the destination of fast equalization on series connected ultra capacitors.
局部放电在线监测是诊断高压电机定子绕组绝缘故障的有效方法之一。
The on line monitoring of partial discharge is an effective approach for diagnosing the faults of stator winding insulations in HV rotating electrical machines.
无槽电机绕组的有效部分直接切割气隙磁场,在其中引起涡流损耗。
Active parts of slotless motor winding directly cut off air - gap field, it could produced eddy-current loss.
多年来在低压绕组上广泛运用的网套CTC更有效地发挥了其上述的优越性。
The above - mentioned superiority of CTC with net used in low voltage winding for many years has been more developed efficiently.
因此,自适应判据有效提高了保护在定子绕组经过渡电阻单相接地情况下的灵敏度。
Thus, the proposed adaptive criterion can effectively improve the sensitivity of generator protection is improved while the single-phase of stator winding is grounded via transition resistance.
频响分析法作为变压器绕组变形检测的一种行之有效的方法,已在国内外得到推广使用。
As one of the methods of diagnosing the winding deformation, the frequency response analysis method is presently being widely used in many countries besides China.
目前,汽轮发电机转子绕组匝间短路故障的检测方法有很多,其中探测线圈法是有效且常用的一种。
At present there are many methods to detect the inter-turn shorted-circuit fault of turbo-generator rotor windings. The air-gap detection coil monitoring method is effective and used widely.
频率响应法作为变压器绕组变形检测的一种有效而简单的方法,在国内外己得到推广使用。
The frequency response analysis has been widely used as a simple and effective detecting method in many countries besides China.
振动法能有效地检测变压器运行中的绕组状况。
The vibration analysis method can effectively monitor the condition of power transformer windings.
对由两台三绕组变压器组成的系统进行计算,结果令人满意,验证了基于动态规划法求解该问题是可行的和有效的。
The calculation result of power system composed of two three-coil transforms is satisfying, which proves it available to solve the problems on base of dynamic programming method.
通过一个有解析解的双层有损同轴绝缘结构模型,验证了方法的有效性。最后,分析了一个换流变压器阀侧绕组典型绝缘结构的极性反转电场变化过程。
The proposed method was verified by a simple model, which has analytical solutions, and used to analyze the pr process of a typical oil-paper insulation structure of converter transformer.
局部放电在线检测技术是高压旋转电机定子绕组绝缘监测的有效方法。
On-line Partial Discharge (PD) detection is a common method for insulation monitoring in high voltage electrical machines.
局部放电在线检测技术是高压旋转电机定子绕组绝缘监测的有效方法。
On-line Partial Discharge (PD) detection is a common method for insulation monitoring in high voltage electrical machines.
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