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   core loss 在 电力工业 分类中 的翻译结果: 查询用时:0.189秒
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core loss     
相关语句
  铁损
    New Fe-Based Amorphous Alloys with High Initial Permeability,Low Coercivity and Low Core Loss
    新型的高起始磁导率低矫顽力低铁损铁基非晶态合金
短句来源
    Large Electric Generator Stator Core Loss Test
    大型电动发电机定子铁损试验
短句来源
    Study on Reducing Core Loss of Silicon Steel Sheet by ECM
    电化学加工法降低硅钢片铁损的研究
短句来源
    Optimal-efficiency Control of Asynchronous Motor Taking Core Loss Into Account
    考虑铁损时异步电动机的最佳效率控制
短句来源
    Analysis on High-speed Vector Model Taking Core Loss into Account
    考虑铁损时异步电机高速性能的矢量模型分析
短句来源
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  铁芯损耗
    The latter can make the inverter reduce the harmonic voltage output, consequently reducing the motor core loss and copper loss induced by the harmonic voltages.
    优化SVPWM发生方法,控制逆变器的谐波电压输出,以减少由谐波电压引起的电机铁芯损耗和铜损。
短句来源
  铁心损耗
    Design of Power Supply on Test Device for Core Loss
    铁心损耗测试装置电源的研制
短句来源
  磁芯损耗
    Through research on the core loss of MnZn ferrite in the different sintered temperature and atmophere,it is suggested that the hysteresis loss is the main part of the core loss in the frequency 100kHz.
    通过研究MnZn铁氧体材料在不同频率、温度下的功耗 ,表明了MnZn铁氧体材料工作在频率为 10 0kHz时 ,磁滞损耗占磁芯损耗的主要成分。
短句来源

 

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      core loss
    -It is well known that electrical logs of boreholes can play a signi|fi|cant role in base metal exploration in identifying mineralised zones, especially when there is core loss or the borehole diameter is small or if drilling is by percussion.
          
    The core loss increased by the eddy current loss through the laminations was 78% of all deterioration by interlocking.
          
    Magnetic deteriorations by interlocking was caused by the core loss increased by the obstruction of magnetic flux flows and eddy current loss through the laminations.
          
    Core loss of the test specimens declined for zirconium contents of 0.01 wt.%, whereas the magnetic induction did not change due to the addition of zirconium less than 0.133 wt.%.
          
    Also, because of its low eddy current loss, it has good high-frequency magnetic properties, 90 W/kg core loss when measured at 400 Hz and at an induction of 1.5 T.
          
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    For the purpose of supplying useful information to manufacturing organizations, and of systematically examining the effects of temperature and time of annealing on the domestically produced low silicon steel electrical sheets, a series of experiments has been performed. The results show that the lowest obtainable values of core loss of samples box-annealed in its own atmosphere are approximately P_(10)=2.3 watt kg, P_(15) = 5.2 watt/kg, 30% lower than the permissible values set in ROCT 802-41 for э1A.

    为了提供生产上有用的数据,为了考察国产低矽钢片在不同温度不同时间的条件下退火以后的效果,我们进行了具有相当系统性的关于退火条件的实验。实验结果表明:在较850℃为低的温度退火不同时间或多次退火,可使铁心损失达到同一最低值;在高于950℃的温度退火以后,即令再度在较低温度退火,也不能达此最低值。此最低值约为:P_(10)=2.3瓦特/千克,P_(15)=5.2瓦特/千克,较ГOCT802-41中对Э1A规定的最高值低30%。

    In the present paper,DC and AC magne- tic properties of new Fe-based amorphous alloys are reported,which exhibit high initial permeability(10s order),low coer- cive force(smaller than 0.8 A/m)and much lower core losses.The initial permeability,the coercive force and the core losses of the new alloys are equivalent tothose of the Co-based amorphous alloys, but Bs and Tc of the former are much higher than those of the latter The studies of microstructure and X-ray diffraction bare shown that the annealed...

    In the present paper,DC and AC magne- tic properties of new Fe-based amorphous alloys are reported,which exhibit high initial permeability(10s order),low coer- cive force(smaller than 0.8 A/m)and much lower core losses.The initial permeability,the coercive force and the core losses of the new alloys are equivalent tothose of the Co-based amorphous alloys, but Bs and Tc of the former are much higher than those of the latter The studies of microstructure and X-ray diffraction bare shown that the annealed alloys with high magnetic properties mainly con- sist of the ultrafine grains of α-Fe,whhic have the average size ot 11~20nm.9refs.

    本文报道了具有10~5数量级起始磁导率和矫顽力小于0.8A/m(m⊙_e 数量级)的同时具有低铁损的铁基非晶合金的直流和交流磁特性,也报道了对显微组织研究的初步实验结果.

    This device is superior to those energy-saving devices controlled by power factor of by load and speed. The characteristics of this device include.(1) According to the voltage following current principle, the motor is allowed to keep approximately a constant rotational difference at both light and full load operations, making the power factor of the motor almost unchanged with load and obtaining a specific relationship between the core loss and copper loss. These make the motor having a higher efficiency...

    This device is superior to those energy-saving devices controlled by power factor of by load and speed. The characteristics of this device include.(1) According to the voltage following current principle, the motor is allowed to keep approximately a constant rotational difference at both light and full load operations, making the power factor of the motor almost unchanged with load and obtaining a specific relationship between the core loss and copper loss. These make the motor having a higher efficiency at light load conditions.(2)A small silicon controlled rectifier is used to trigger the big one,so that in the whole control circuit,both the power applied and the loss are less,and the structure is simple.

    本装置优越于按功率因数控制的或按负荷及速度控制的节能装置。其特点,一是使用电压跟随电流的原理维持电机在空载与满载时转差基本不变,电机功率因数几乎不随负载变化,铁损与铜损保持一定关系,使电机在空载时有较高效率。二是使用小可控硅触发大可控硅,这样整个电路功率小,损耗小,结构简单。

     
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