电阻器在电子电路中应用非常广泛,电阻器种类也非常多,按其材料和结构可分为碳膜电阻器、金属膜电阻器、有机实芯电阻器、线绕电阻器、固定抽头电阻器、滑线式变阻器和片状电阻器等,按电阻值是否可调整又可以分为固定电阻器与可变电阻器等。小功率电阻器通常为封装频敏变阻器是一种由铸铁片或钢板叠成铁心,外面再套上绕组的三相电抗器,接在转子绕组的电路中,其绕组电抗和铁心损耗的决定的等效阻抗随着转子电流的频率而变化.
从60年代开始,广泛采用频敏变阻器来代替起动电阻以控制绕线转子异步电动机的起动。频敏变阻器是一种静止的无触点电磁元件,利用它对频率的敏感而自动变阻。频敏变阻器实质上是一个铁损很大的三相电抗器,其结构类似于没有二次绕组的三相变压器。 频敏变阻器是一种有独特结构的新型无触点元件。其外部结构与三相电抗器想似,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。 当绕线式电动机刚开始启动时,电动机转速很低,故转子频率f2很大(接近f1),铁心中的损耗很大,即等值电阻Rm很大,故限制了启动电流,增大了启动转矩。随着n的增加,转子电流频率下降( f2=s f1), Rm减小,使启动电流及转矩保持一定数值。频敏变阻器实际上利用转子频率f2的平滑变化达到使转子回路总电阻平滑减小的目的。启动结束后,转子绕组短接,把频敏变阻器从电路中切除。由于频敏变阻器的等值电阻Rm和电抗Xm随转子电流频率而变,反应灵敏,故叫频敏变阻器。 优点:结构较简单,成本较低,维护方便,平滑启动。 缺点:电感存在,cosΦ较低,启动转矩并不很大,适于绕线式电动机轻载启动在塑料外壳中的碳膜构成,而大功率的电阻器通常为绕线电阻器,通过将大电阻率的金属丝绕在瓷心上而制成。 主要产品有:频敏变阻器、电阻器、不锈钢电阻器、起动调整电阻器、制动电阻器、热电偶、热电阻、液压制动器、电抗器、变压器等。BP1系列频敏变阻器适用于功率自22kw~240kW,50Hz,三相交流绕线型异步电动机的轻载及重轻载做偶尔起动用。 生产销售BP1系列频敏变阻器:BP1-003 BP1-004 BP1-005 BP1-006 BP1-008 BP1-010 BP1-012 BP1-013,-212 BP1-104 BP1-105 BP1-106 BP1-204 BP1-205 BP1-206 BP1-208 BP1-210 BP1-212 BP1-305 BP1-306 BP1-308 BP1-310 BP1-312 BP1-316 BP1-406 BP1-408 BP1-410 BP1-412 BP1-416 BP1-502 BP1-504 BP1-506 BP1-508 BP1-510 BP1-512 BP1系列频敏变阻器
BP1-204 频敏变阻器,BP1-205 频敏变阻器,BP1-206 频敏变阻器,BP1-208 频敏变阻器,BP1-210 频敏变阻器,BP1-212 频敏变阻器,BP1-305 频敏变阻器,BP1-306 频敏变阻器,BP1-308 频敏变阻器,BP1-310 频敏变阻器,BP1-312 频敏变阻器,BP1-316 频敏变阻器,BP1-406 频敏变阻器,BP1-408 频敏变阻器,BP1-410 频敏变阻器,BP1-412 频敏变阻器,BP1-416 频敏变阻器,BP1-504 频敏变阻器,BP1-506 频敏变阻器,BP1-510 频敏变阻器,BP1-512 频敏变阻器,
BP4-02501,BP4-04002,BP4-05003,BP4-06304,BP4-08005,BP4-10006,BP4-12507,BP4-16008,BP4-20009,BP4-25010,BP4-31511,BP4-40012,BP4-50013,BP4-02501/22003,BP4-02501/11504,BP4-02501/12505,BP4-02501/10006,BP4-02501/08008,BP4-02501/24504,,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,BP4-06304/05625,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,BP4-08005/05040,BP4-10006/12510,BP4-10006/10013,BP4-10006/08016,BP4-10006/06320,BP4-10006/05025,BP4-10006/14032,BP4-10006/14013,BP4-10006/11216,BP4-10006/09020,BP4-10006/07125,BP4-10006/05632,BP4-10006/04540,BP4-10006/12516,BP4-10006/10020,BP4-10006/08025,BP4-10006/06332,BP4-10006/05040,BP4-10006/04050,BP4-10006/09025,BP4-10006/07132,BP4-10006/05640,BP4-10006/04550,BP4-12507/11213,BP4-12507/09016,BP4-12507/07120,BP4-12507/05625,BP4-12507/04532,BP4-12507/03640,BP4-12507/12516,BP4-12507/10020,BP4-12507/08025,BP4-12507/06332,BP4-12507/05040,BP4-12507/04050,BP4-12507/11220,BP4-12507/09025,BP4-12507/07132,BP4-12507/05640,BP4-12507/04550,BP4-12507/03662,BP4-16008/08020,BP4-16008/06325,BP4-16008/05032,BP4-16008/04040,BP4-16008/09025,BP4-16008/07132,BP4-16008/05640,BP4-16008/04550,BP4-16008/08032,BP4-16008/06340,BP4-16008/05050,BP4-16008/04063,BP4-16008/10025,BP4-20009/09020,BP4-20009/07125,BP4-20009/05632,BP4-20009/04540,BP4-20009/10025,BP4-20009/08032,BP4-20009/06340,BP4-20009/05050,BP4-20009/09032,BP4-20009/07140,BP4-20009/05650,BP4-20009/04563,BP4-25010/09020,BP4-25010/07125,BP4-25010/05632,BP4-25010/04540,BP4-25010/10025,BP4-25010/08032,BP4-25010/06340,BP4-25010/05050,BP4-25010/09032,BP4-25010/07140,BP4-25010/05650,BP4-25010/04563,BP4-31511/08025,BP4-31511/06332,BP4-31511/05040,BP4-31511/04050,BP4-31511/09032,BP4-31511/07140,BP4-31511/05650,BP4-31511/04563,BP4-31511/08040,BP4-31511/06350,BP4-31511/05063,BP4-31511/06340,BP4-40012/10025,BP4-40012/08032,BP4-40012/06340,BP4-40012/05050,BP4-40012/11232,BP4-40012/09040,BP4-40012/09050,BP4-40012/07150,BP4-40012/05663,BP4-40012/10040,BP4-40012/08050,BP4-40012/06363,BP4-40012/07140,BP4-50013/11225,BP4-50013/09032,BP4-50013/07140,BP4-50013/05650,BP4-50013/05063,BP4-50013/12532,BP4-50013/10040,BP4-50013/08050,BP4-50013/06363,BP4-50013/06340,BP4-50013/11240,BP4-50013/0905
BP2-701/3613,BP2-701/4113,BP2-701/4713,BP2-701/5409,BP2-701/6209,
BP2-701/8206,BP2-701/9506,BP2-701/10906,BP2-701/12506,BP2-701/14404,
BP2-702/2426,BP2-702/2722,BP2-702/3122,BP2-702/3618,BP2-702/4115,
BP2-702/4713,BP2-702/5413,BP2-702/6213,BP2-702/7209,BP2-702/8209,BP2-702/9506,
BP2-703/2130,BP2-703/2426,BP2-703/2722,BP2-703/3122,BP2-703/3618,
BP2-703/4115,BP2-703/4713,BP2-703/5413,BP2-703/6213,BP2-703/7209,BP2-703/8209,
BP2-704/1836,BP2-704/2130,BP2-704/2426,BP2-704/2722,BP2-704/3122,
BP2-704/3618,BP2-704/4115,BP2-704/4713,BP2-704/5413,BP2-704/6213
BP3-204/16003,BP3-204/12504,BP3-204/10005,BP3-204/8006,BP3-205/10005,
BP3-205/8006,BP3-205/6308,BP3-205/5010,BP3-205/4012,BP3-205/12504,
BP3-206/10005,BP3-206/8006,BP3-206/6308,BP3-206/5010,BP3-206/4012,
BP3-206/3216,BP3-208/10005,BP3-208/8006,BP3-208/6308,BP3-208/5010,
BP3-208/4012,BP3-208/3216,BP3-208/2520,BP3-210/8006,BP3-210/6308,
BP3-210/5010,BP3-210/4012,BP3-210/3216,BP3-210/2520,BP3-212/4012,
BP3-212/3216,BP3-212/2520,BP3-212/2025,BP3-212/1632,BP3-305/5016,
BP3-305/4020,BP3-305/3225,BP3-305/2532,BP3-305/2040,BP3-305/6312,
BP3-306/5016,BP3-306/4020,BP3-306/3225,BP3-306/2532,BP3-306/2040,
BP3-306/1650,BP3-306/6312,BP3-306/5016,BP3-306/4020,BP3-306/3225,
BP3-306/2532,BP3-308/4020,BP3-308/3225,BP3-308/2532,BP3-308/2040,
BP3-308/1650,BP3-308/6312,BP3-308/5016,BP3-310/4020,BP3-310/3225,
BP3-310/2532,BP3-310/2040,BP3-310/1650,BP3-310/5016,BP3-310/6312,
BP3-312/4020,BP3-312/3225,BP3-312/2532,BP3-312/2040,BP3-312/1650,
BP3-312/5016,BP3-312/6312,BP3-316/4020,BP3-316/3225,BP3-316/2532,
BP3-316/2040,BP3-316/1650,BP3-316/5016,BP3-316/6312,BP3-316/1650,
BP3-003/11203,BP3-005/10004,BP3-005/10003,BP3-005/8003,BP3-008/10004
BP3-008/8004,BP3-008/8006,BP3-008/8003,BP3-506/8006,BP3-506/5010,
BP3-506/6308,BP3-506/10005,BP3-508/5010,BP3-508/6308,BP3-508/8006,
BP3-512/3216,BP3-512/4010,BP3-512/4012,BP3-512/6310,BP3-512/4016,
BP3-512/5010,BP3-406/6316,BP3-406/3225,BP3-406/6308,BP3-406/5010,
BP3-406/6312,BP3-406/3232,BP3-406/8006,BP3-406/5016,BP3-406/2532,
BP3-406/8010,BP3-410/3225,BP3-410/5016,BP3-410/4016,BP3-410/2525,
BP3-410/3216,BP3-410/2532,BP3-410/5012,BP3-410/4020,BP3-410/2040,
BP3-412/2532,BP3-412/5016,BP3-412/3216,BP3-412/4012,BP3-412/3232,
BP3-412/2032,BP3-412/4016,BP3-412/4020,BP3-412/3225,BP3-408/5016,
BP3-408/4016,BP3-408/5010,BP3-408/4012,BP3-408/3216,BP3-408/5012,
BP3-408/8010,BP3-408/8006,BP3-408/4020,BP3-408/6308,BP3-408/3232,
BP3-012/8004,BP3-012/6306,BP3-012/6304,BP3-012/6305,BP3-510/5008,
BP3-510/4010,BP3-510/6304,BP3-510/5006,BP3-510/6306,BP3-510/8004,
BP3-510/6308,BP3-510/5010,BP3-510/8006,BP3-004/10003,BP3-006/10003,
BP3-006/8004,BP3-010/8004,BP3-010/6305,BP3-504/12504,BP3-504/10005,
BP3-416/2040,BP3-416/3225,BP3-416/1650,BP3-416/2532
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,BP4-06304/05625,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,BP4-08005/05040,BP4-10006/12510,BP4-10006/10013,BP4-10006/08016,BP4-10006/06320,BP4-10006/05025,BP4-10006/14032,BP4-10006/14013,BP4-10006/11216,BP4-10006/09020,BP4-10006/07125,BP4-10006/05632,BP4-10006/04540,BP4-10006/12516,BP4-10006/10020,BP4-10006/08025,BP4-10006/06332,BP4-10006/05040,BP4-10006/04050,BP4-10006/09025,BP4-10006/07132,BP4-10006/05640,BP4-10006/04550,BP4-12507/11213,BP4-12507/09016,BP4-12507/07120,BP4-12507/05625,BP4-12507/04532,BP4-12507/03640,BP4-12507/12516,BP4-12507/10020,BP4-12507/08025,BP4-12507/06332,BP4-12507/05040,BP4-12507/04050,BP4-12507/11220,BP4-12507/09025,BP4-12507/07132,BP4-12507/05640,BP4-12507/04550,BP4-12507/03662,BP4-16008/08020,BP4-16008/06325,BP4-16008/05032,BP4-16008/04040,BP4-16008/09025,BP4-16008/07132,BP4-16008/05640,BP4-16008/04550,BP4-16008/08032,BP4-16008/06340,BP4-16008/05050,BP4-16008/04063,BP4-16008/10025,BP4-20009/09020,BP4-20009/07125,BP4-20009/05632,BP4-20009/04540,BP4-20009/10025,BP4-20009/08032,BP4-20009/06340,BP4-20009/05050,BP4-20009/09032,BP4-20009/07140,BP4-20009/05650,BP4-20009/04563,BP4-25010/09020,BP4-25010/07125,BP4-25010/05632,BP4-25010/04540,BP4-25010/10025,BP4-25010/08032,BP4-25010/06340,BP4-25010/05050,BP4-25010/09032,BP4-25010/07140,BP4-25010/05650,BP4-25010/04563,BP4-31511/08025,BP4-31511/06332,BP4-31511/05040,BP4-31511/04050,BP4-31511/09032,BP4-31511/07140,BP4-31511/05650,BP4-31511/04563,BP4-31511/08040,BP4-31511/06350,BP4-31511/05063,BP4-31511/06340,BP4-40012/10025,BP4-40012/08032,BP4-40012/06340,BP4-40012/05050,BP4-40012/11232,BP4-40012/09040,BP4-40012/09050,BP4-40012/07150,BP4-40012/05663,BP4-40012/10040,BP4-40012/08050,BP4-40012/06363,BP4-40012/07140,BP4-50013/11225,BP4-50013/09032,BP4-50013/07140,BP4-50013/05650,BP4-50013/05063,BP4-50013/12532,BP4-50013/10040,BP4-50013/08050,BP4-50013/06363,BP4-50013/06340,BP4-50013/11240,BP4-50013/09050,BP4-50013/07163 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,BP4-06304/05625,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,BP4-08005/05040,BP4-10006/12510,BP4-10006/10013,BP4-10006/08016,BP4-10006/06320,BP4-10006/05025,BP4-10006/14032,BP4-10006/14013,BP4-10006/11216,BP4-10006/09020,BP4-10006/07125,BP4-10006/05632,BP4-10006/04540,BP4-10006/12516,BP4-10006/10020,BP4-10006/08025,BP4-10006/06332,BP4-10006/05040,BP4-10006/04050,BP4-10006/09025,BP4-10006/07132,BP4-10006/05640,BP4-10006/04550,BP4-12507/11213,BP4-12507/09016,BP4-12507/07120,BP4-12507/05625,BP4-12507/04532,BP4-12507/03640,BP4-12507/12516,BP4-12507/10020,BP4-12507/08025,BP4-12507/06332,BP4-12507/05040,BP4-12507/04050,BP4-12507/11220,BP4-12507/09025,BP4-12507/07132,BP4-12507/05640,BP4-12507/04550,BP4-12507/03662,BP4-16008/08020,BP4-16008/06325,BP4-16008/05032,BP4-16008/04040,BP4-16008/09025,BP4-16008/07132,BP4-16008/05640,BP4-16008/04550,BP4-16008/08032,BP4-16008/06340,BP4-16008/05050,BP4-16008/04063,BP4-16008/10025,BP4-20009/09020,BP4-20009/07125,BP4-20009/05632,BP4-20009/04540,BP4-20009/10025,BP4-20009/08032,BP4-20009/06340,BP4-20009/05050,BP4-20009/09032,BP4-20009/07140,BP4-20009/05650,BP4-20009/04563,BP4-25010/09020,BP4-25010/07125,BP4-25010/05632,BP4-25010/04540,BP4-25010/10025,BP4-25010/08032,BP4-25010/06340,BP4-25010/05050,BP4-25010/09032,BP4-25010/07140,BP4-25010/05650,BP4-25010/04563,BP4-31511/08025,BP4-31511/06332,BP4-31511/05040,BP4-31511/04050,BP4-31511/09032,BP4-31511/07140,BP4-31511/05650,BP4-31511/04563,BP4-31511/08040,BP4-31511/06350,BP4-31511/05063,BP4-31511/06340,BP4-40012/10025,BP4-40012/08032,BP4-40012/06340,BP4-40012/05050,BP4-40012/11232,BP4-40012/09040,BP4-40012/09050,BP4-40012/07150,BP4-40012/05663,BP4-40012/10040,BP4-40012/08050,BP4-40012/06363,BP4-40012/07140,BP4-50013/11225,BP4-50013/09032,BP4-50013/07140,BP4-50013/05650,BP4-50013/05063,BP4-50013/12532,BP4-50013/10040,BP4-50013/08050,BP4-50013/06363,BP4-50013/06340,BP4-50013/11240