22B-E3P0C104
22B-E3P0C104同步电动机的优点除了过励状态可以补偿无功功率外，还包括：
1）同步电动机的转速严格遵守n=60f/p，可以控制转速；
2）运行稳定性高，当电网电压突然下降，其励磁系统一般会强行励磁，保证电动机运行稳定，而异步电动机转矩（与电压平方成正比）则会大幅下降；
3）过载能力比相应异步电动机大；
4）运行效率高，尤其是低速同步电动机。
同步电动机无法直接启动，需要异步启动或变频启动。异步启动指同步电动机在转子上装有类似于异步电机笼式绕组的启动绕组，在励磁回路中串接约为励磁绕组电阻值10倍的附加电阻来构成闭合电路，把同步电动机的定子直接接入电网，使之按异步电动机启动，当转速达到亚同步转速（95%）时，再切除附加电阻的启动方式；变频启动不多赘述。所以同步电动机缺点之一是需要为启动增加额外的设备装置。
Cisco Starent ST16, Ethernet 1000 SX, EDC 8GB - !
14 day warranty!
TTC Acterna Centest 650-S Wideband Remote Test Unit
Agilent 81110A Pulse-/ Pattern Generator w/ 2 x 81111A
Tenney Ten TTRC Environmental Chamber Micro Tenn
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Nortel 8672ATMM 2 Slot MDA 8600 Module DS1304009-GS 05
Westinghouse PB22500F Frame 2 Pole 2500A Max 600 VAC
Agilent N5766A System DC Power Supply LXI 40V/38A,1520W
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Sycamore Networks 4xOC-48/ STM-16 SIC-T 500106 !
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Telenex AR Interview 7700 Turbo INT-951-6-1 !!
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LOT OF 12 TEKLOGIX 7025-ILR Handheld Terminal AS-IS
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HP Hewlett Packard 3561A Dynamic Signal Analyzer !
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HP Proliant DL585 DL 585 8GB Ram, 4 x 72.8GB Hard Drive
Transition Networks Industrial Switch SISTF1010-180
HP BRSLA-0402-DC LTO Ultrium 3
Sun Microsystems Netra 20 (N28-USF2-4096CV-IP) Server
HP Hewlett Packard 6634B System DC Power Supply
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JFW 50F-003 3dB Attenuator N-Male to Female Lot of 25
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Wilcom T308 PCM Channel Access Kit
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Bird Termaline Coaxial Resistor Model 8141 250 Watts
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