百度试题 题目In a △ - △ system, a line voltage of 380V produces a phase voltage of: 相关知识点: 试题来源: 解析 380V
PURPOSE:To realize the reproduction of cost by miniaturizing and lightening an iron core and reducing terminals of a transformer by providing one leg of three-leg iron core with a winding for a line voltage transformer and another leg with a winding for a phase voltage transformer. CONSTITUTION...
1,206,365. Protective arrangements. INTERNATIONAL BUSINESS MACHINES CORP. 5 Feb., 1968 [4 Feb., 1967], No. 5606/68. Heading H2K. An arrangement for indicating a phase fault in a polyphase A.C. supply
TI 电源管理芯片 LM34910CSD/NOPB Voltage Regulators - Switching Regulators ¥0.65 查看详情 Infineon FS100R12KE3 IGBT 模块 1200V 100A 3-PHASE ¥0.65 查看详情 ST/意法半导体 STM32L083RZT6TR ARM微控制器 - MCU Ultra-low-power ARM Cortex-M0+ MCU with 192-Kbytes Flash, 32 MHz CPU, USB,...
GUVs were formed at 50 °C by electroswelling under an applied voltage of 1 V peak-to-peak at 5 Hz for 2 h. Then GUVs were slowly cooled from 50 °C to 23 °C over 12 h. We also tested a slower cooling rate of 20 h over the same temperature range to confirm that 12 h ...
TI 电源管理芯片 LM34910CSD/NOPB Voltage Regulators - Switching Regulators ¥0.65 查看详情 Infineon FS100R12KE3 IGBT 模块 1200V 100A 3-PHASE ¥0.65 查看详情 Infineon FS450R12KE3 IGBT 模块 1200V 450A 3-PHASE ¥0.65 查看详情 ST/意法半导体 运算放大器及比较器 LM258WYDT 运算放大器 - 运...
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Most of the low-voltage distribution networks are three-phase four wire systems. Because of the quantity and dispersion of single-phase power users, the three-phase load unbalanced problem exists in a large number of low-voltage stations... V Dovgun,S Temerbaev,M Chernyshov,... - Multidisci...
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