频敏变阻器是一种有特结构的新型无触点元件。其外部结构与三相电抗器相似,即有三个铁芯柱和三个绕组组成,三个绕组接成星形,并通过滑环和电刷与绕线式电动机三相转子绕组相接。所谓频敏,就是对频率敏感。其实,频敏电阻器就是一组电感器,利用自感,对频率高的电压阻抗大,频率低的电压阻抗小。
当绕线转子式电机刚起动时,转子尚未转动,定子绕组产生的旋转磁场高速旋转,转子绕组相对高速切割磁场,产生频率高幅度也高的感生电压,转子回路的频敏电阻器呈现高阻抗,降低起动电流;转子旋转起来以后,随着转差率的降低,转子绕组切割磁场的相对速度降低,转子感生电压频率及幅度也降低;频敏电阻器呈现低阻抗;起动完成后,转差率接近于0,转子感生电压频率亦接近于0,频敏电阻器阻抗接近于0,相当于短接转子绕组(实际使用时电机启动完成后直接切除),电机正常运转。BP 频敏变阻器,BP 频敏变阻器,BP 频敏变阻器,
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BP1-02501 BP1-05003,BP1-04002,BP1-06304,BP1-08005,BP1-10006,BP1-12507,BP1-16008,BP1-20009,BP1-25010,BP1-31511,BP1-40012,BP1-50013,BP1-06304
BP4-02501/22003,BP4-02501/11504,BP4-02501/12505,BP4-02501/10006,BP4-02501/08008,
BP4-02501/24504,BP4-02501/19605,BP4-02501/14006,BP4-02501/11208,BP4-02501/09010,
BP4-04002/11208,BP4-04002/09010,BP4-04002/07113,BP4-04002/05616,BP4-04002/04520,
BP4-04002/03625,BP4-04002/10010,BP4-04002/08012,BP4-04002/06316,BP4-04002/05020,
BP4-04002/04025,BP4-04002/03232,BP4-04002/10006,BP4-04002/08008,BP4-04002/06310,
BP4-04002/05013,BP4-04002/04016,BP4-04002/03220,BP4-04002/15506,BP4-04002/12508,
BP4-05003/11206,BP4-05003/09008,BP4-05003/07110,BP4-05003/05613,BP4-05003/04516,
BP4-05003/03620,BP4-05003/12508,BP4-05003/10010,BP4-05003/08013,BP4-05003/06316,
BP4-05003/05020,BP4-05003/04025,BP4-05003/11210,BP4-05003/07116,BP4-05003/05620,
BP4-05003/04525,BP4-05003/03632,BP4-05003/09012,BP4-06304/16006,BP4-06304/12508,
BP4-06304/10010,BP4-06304/08013,BP4-06304/06316,BP4-06304/05020,BP4-06304/17908,
BP4-06304/14010,BP4-06304/11213,BP4-06304/09016,BP4-06304/07120,,BP4-08005/08025,
BP4-08005/06332,BP4-02501/11504,BP4-02501/12505,BP4-02501/10006,BP4-02501/08008,
BP4-02501/24504,BP4-02501/19605,BP4-02501/14006,BP4-02501/11208,BP4-02501/09010,
BP4-04002/11208,BP4-04002/09010,BP4-04002/07113,BP4-04002/05616,BP4-04002/04520,
BP4-04002/03625,BP4-04002/10010,BP4-04002/08012,BP4-04002/06316,BP4-04002/05020,
BP4-04002/04025,BP4-04002/03232,BP4-04002/10006,BP4-04002/08008,BP4-04002/06310,
BP4-04002/05013,BP4-04002/04016,BP4-04002/03220,BP4-04002/15506,BP4-04002/12508,
BP4-05003/11206,BP4-06304/05625,BP4-06304/16010,BP4-06304/12512,BP4-06304/10016,
BP4-06304/08020,BP4-06304/06325,BP4-06304/05032,BP4-08005/11210,BP4-08005/09013,
BP4-08005/07116,BP4-08005/05620,BP4-08005/04525,BP4-08005/03632,BP4-08005/12513,
BP4-08005/10016,BP4-08005/08020,BP4-08005/06325,BP4-08005/05032,BP4-08005/04040,
BP4-08005/11216,BP4-08005/09020,BP4-08005/07125,BP4-08005/05632,BP4-08005/04540,
BP4-08005/03650,BP4-08005/10020 BP4-05003/09008,BP4-05003/07110,BP4-05003/05613,
BP4-05003/04516,BP4-05003/03620,BP4-05003/12508,BP4-05003/10010,BP4-05003/08013,
BP4-05003/06316,BP4-05003/05020,BP4-05003/04025,BP4-05003/11210,BP4-05003/07116,
BP4-05003/05620,BP4-05003/04525,BP4-05003/03632,BP4-05003/09012,BP4-06304/16006,
BP4-06304/12508,BP4-06304/10010,BP4-06304/08013,BP4-06304/06316,BP4-06304/05020,
BP4-06304/17908,BP4-06304/14010,BP4-06304/11213,BP4-06304/09016,BP4-06304/07120,
BP4-06304/05625,BP4-06304/16010,BP4-06304/12512,BP4-06304/10016,BP4-06304/08020,
BP4-06304/06325,BP4-06304/05032,BP4-08005/11210,BP4-08005/09013,BP4-08005/07116,
BP4-08005/05620,BP4-08005/04525,BP4-08005/03632,BP4-08005/12513,BP4-08005/10016,
BP4-08005/08020,BP4-08005/06325,BP4-08005/05032,BP4-08005/04040,BP4-08005/11216,
BP4-08005/09020,BP4-08005/07125,BP4-08005/05632,BP4-08005/04540,BP4-08005/03650,
BP4-08005/10020,BP4-08005/08025,BP4-08005/06332频敏变阻器
bp1-416/2040有大量库存备件