ABB BAILEY 1769ECR 1756-BA2
电动机的调速与控制，是工农业各类机械及办公、民生电器设备的基础技术之一。随着电力电子技术、微电子技术的惊人发展，采用“专用变频感应电动机+变频器”的交流调速方式，正在以其***的性能和经济性，在调速领域，引导了一场取代传统调速方式的更新换代的变革。
它给各行各业带来的福音在于：使机械自动化程度和生产效率大为节约能源。提高产品合格率及产品质量、电源系统容量相应提高、设备小型化、增加舒适性，正以很快的速度取代，传统的机械调速和直流调速方案。
由于变频电源的特殊性，以及系统对高速或低速运转、转速动态响应等需求，对作为动力主体的电动机，提出了苛刻的要求，给电动机带来了在电磁、结构、绝缘各方面新的课题。
轴电流是前轴与后轴和基座的电位差，所产生的电流把轴电***生的回路切断，就不会产生轴电流,轴承绝缘处理是切断轴电流回路，***好方法。非驱动端受力较小，易于使用绝缘材料，所以在变频电机的尾部做绝缘。
主轴和轴承上因感应电流，导致的跳火可导致轴承表面腐蚀、金属表面形成缩孔以，及轴承滚动轨道上形成凹槽等缺陷。
为防止轴电流，对容量超过160KW电动机，应采用轴承绝缘措施。主要是易产生磁路不对称，也会产生轴电流，当其他高频分量所产生的电流，结合一起作用时，轴电流将大为增加，从而导致轴承损坏，所以一般要采取轴承绝缘措施。
至于为什么驱动端不使用绝缘轴承呢，电动机的轴与基座形成一个环，交变磁通穿过产生感应电势，如果这个环形成通路就有电流通过，电流穿越轴承界面会产生电蚀。一般采取将一端轴承做绝缘处理，以切断电流通路，保护轴承。由于非驱动端受力较小，易于使用绝缘材料，所以都在非驱动端做绝缘。
OHMITE 0324-500 *USED*
HANNIFIN SS40005023 *USED*
ALLEN BRADLEY 800T-PT16 SER.N *USED*
SOLA 86-24-262 *NICE*
ALLEN BRADLEY 42MBS-5100 SER.B *USED*
HAYWARD BS7110060 *USED*
LOT OF 2 EPIC 10196000 *USED*
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BRAD HARRISON 804001B02M060 *USED*
***C AR30-N03-Z *USED*
BANNER MQDC-306 *USED*
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SQUARE D 8501-GO-4 SER.D 120V *USED*
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ASCO 238210-058D *USED*
IFM ELECTRIC OG5050 *USED*
DWYER 1991-0 *USED*
ANTUNES CONTROLS ***L *USED*
IFM ELECTRIC IE5207 *USED*
IFM ELECTRIC IF0303 *USED*
HONDA MR-I6L *USED*
TURCK NI 5 *USED*
HAPA 199-20-25-001 BLACK *USED*
FESTO KMF-1-220-5 *NICE*
PPDI PDAH (AS PICTURED) *USED*
KOM LAMB INC. 25496 *USED*
BRAD HARRISON 40948-90 *USED*
JOHNSON CONTROLS P32AC-8 *NICE*
BRAD HARRISON 106000A01F120 *USED*
NUMATICS 061SA400K VALVE *NICE*
GOULD B557 TTL *USED *
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DAYTON 6X154E *USED*
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GENERAL ELECTRIC COIL 981B160-G10 *USED*
SYSTEM SENSOR 2082 *USED*
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ASCO 64-982-1 D *USED*
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SOLA 81-24-180-01 *USED*
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DIALCO 095-0463-09-313 MINI PANEL INDICATOR *NEW IN A F...
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DALE RESISTOR SPR-761-1 *USED*
LOT OF 3 LEGRIS 1 / 2 (AS IS) *USED*
BODINE 24A4BEPM-D3 MOTOR *NEW IN A BOX*
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DART CONTROLS 123D-C DC MOTOR SPEED CONTROL 24/36VAC *U...
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HUMPHREY 250E1-3-10-21-3?6 AIR VALVE *USED*
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PANALARM 090-0004-3-01 POWER SUPPLY MODULE BOARD *USED*
WERMA (RED) 641 100 00 LAMP BASE W/ BULB *USED*
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MAC VALVE TM-DDAP-1DA SOLENOID VALVE *NEW IN A BOX*
ALFA L***AL VALVE ARC *NEW OUT OF BOX*
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VEEDER-ROOT 729825-002 *USED*
CONTINENTAL INDUSTRIES, INC. SSDA-660-50-000 *USED*
CHROMALOX D2936 208/220V CONTACTOR *USED*
SY/MAX 8030-HIM-131 MODULE *NICE*
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SEW EURODRIVE 825723X RECTIFIER *USED*
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NORGREN CS7-04 *NEW OUT OF BOX*
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ALLEN BRADLEY 802T-HP SERIES C (AS PICTURED) *USED*
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OMRON E2E2-X2Y1-M4 PROXIMITY SENSOR *USED*
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BAND-IT- BRAND C204 *NEW IN A BOX*
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